CN215875776U

CN215875776U - Infusion pump

Info

Publication number: CN215875776U
Application number: CN202023315009.1U
Authority: CN
Inventors: 张鹏; 左鹏飞; 彭名旭; 谌贵阳
Original assignee: Shenzhen Mindray Scientific Co Ltd
Current assignee: Shenzhen Mindray Scientific Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-02-22
Anticipated expiration: 2030-12-31

Abstract

The embodiment of the application provides an infusion pump, which comprises a pump main body, a pump door and a liquid stopping sheet clamp driving module; the pump main body comprises a face frame, and the face frame is provided with a liquid stopping sheet clamp mounting position and a liquid conveying pipe mounting position; the pump door is movably connected with the pump main body; the liquid stopping sheet clamp driving module comprises a movable mechanism; when the liquid stopping sheet clamp is loaded on the liquid stopping sheet clamp installation position, the liquid stopping sheet clamp is abutted with the movable mechanism at the liquid stopping working position, so that the liquid stopping sheet clamp is closed to clamp the infusion tube, and the liquid circulation path in the infusion tube is cut off; when the movable mechanism is switched from the liquid stopping working position to the conducting working position under the action of the driving force, the liquid stopping sheet clamp loosens the infusion tube so as to conduct a liquid circulation path in the infusion tube; when the movable mechanism is switched from the conduction working position to the liquid stopping working position under the action of the driving force, the liquid stopping sheet clamp clamps the infusion tube so as to cut off the liquid circulation path in the infusion tube. The transfer pump of this application embodiment is convenient for end liquid and compact structure.

Description

Infusion pump

Technical Field

The application relates to the field of medical equipment, in particular to an infusion pump.

Background

The infusion pump is a main infusion product for clinical infusion, and accurate liquid stopping is important for the safety of infusion. The infusion pump is provided with a liquid stopping component, when the infusion tube is loaded on the infusion pump, the liquid stopping component is used for stopping a liquid flow path in the infusion tube before infusion is started or after infusion is stopped, and the liquid flow path in the infusion tube is conducted when infusion is started.

In order to improve the infusion precision, another infusion pump is provided in the industry, a liquid stopping clamp structure is additionally arranged beside a liquid stopping component, the liquid stopping clamp structure can be combined with an infusion tube and then is installed on the infusion pump, but the infusion pump in the form needs to conduct the original liquid stopping component and the liquid stopping clamp structure on the infusion tube before the infusion is started, and the overall control steps are relatively complicated. The partial operation steps also require manual operation of a user, for example, when taking the tube, the user is sometimes required to manually close the liquid stopping clamp structure. In addition, in the infusion pump in the above form, since the liquid stopping clip mechanism and the liquid stopping member are arranged side by side, a large installation space needs to be occupied in the length direction of the infusion pump, so that the overall structure of the infusion pump is relatively large, and the miniaturization of the infusion pump is further influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an infusion pump with simple liquid stopping control and more compact overall structure.

In order to achieve the above object, a first aspect of the embodiments of the present application provides an infusion pump for cooperating with a liquid stop sheet clip inserted into an infusion tube, including:

the pump comprises a pump main body and a pump body, wherein the pump main body comprises a face frame and a pump body, and the face frame is provided with a liquid stopping sheet clamp mounting position and a liquid conveying pipe mounting position;

the pump door is movably connected with the pump main body;

the liquid stopping sheet clamp driving module is arranged on the pump main body and comprises a movable mechanism;

when the liquid stopping sheet clamp is loaded on the liquid stopping sheet clamp installation position, the liquid stopping sheet clamp is abutted against the movable mechanism at the liquid stopping working position, so that the liquid stopping sheet clamp is closed to clamp the infusion tube, and a liquid flow path in the infusion tube is cut off; when the movable mechanism is switched from the liquid stopping working position to the conducting working position under the action of driving force, the liquid stopping sheet clamp loosens the infusion tube so as to conduct a liquid circulation path in the infusion tube; when the movable mechanism is switched from the conduction working position to the liquid stopping working position under the action of driving force, the liquid stopping sheet clamp is closed to clamp the infusion tube so as to cut off a liquid circulation path in the infusion tube.

A second aspect of the embodiments of the present application provides an infusion pump, which is used in cooperation with a liquid stopping sheet clamp arranged on an infusion tube, and comprises:

the pump comprises a pump main body and a pump body, wherein the pump main body comprises a face frame, a pump sheet and an electric drive mechanism, and the face frame is provided with a liquid stopping sheet clamp mounting position and a liquid conveying pipe mounting position;

the pump door is movably connected with the pump main body;

the liquid stopping sheet clamp driving module is arranged on the pump main body and comprises a box body and a movable mechanism which is rotatably arranged in the box body, and the liquid stopping sheet clamp mounting position is communicated with the box body;

when the liquid stop sheet clamp is loaded on the liquid stop sheet clamp installation position and the pump door is closed, the liquid stop sheet clamp is abutted against the movable mechanism at the liquid stop working position, so that the liquid stop sheet clamp is closed to clamp the infusion tube to cut off a liquid circulation path in the infusion tube, wherein the abutting direction between the liquid stop sheet clamp and the movable mechanism is vertical to the placing direction of the infusion tube;

when the electric drive mechanism drives the liquid stopping sheet clamp to rotate to a conduction working position, the liquid stopping sheet clamp releases the infusion tube so as to conduct a liquid circulation path in the infusion tube;

when the movable mechanism reversely rotates from the conduction working position to the liquid stopping working position under the action of driving force, the liquid stopping sheet clamp is closed to clamp the infusion tube so as to cut off a liquid circulation path in the infusion tube.

A third aspect of the embodiments of the present application provides an infusion pump, which is used in cooperation with a liquid stopping sheet clamp inserted into an infusion tube, and includes:

the pump comprises a pump main body and a pump body, wherein the pump main body comprises a face frame and a pump sheet, and the face frame is provided with a liquid stopping sheet clamp mounting position and a liquid conveying pipe mounting position;

the pump door is rotatably connected with the pump main body;

the liquid stopping sheet clamp driving module is arranged on the pump main body and comprises a box body, a movable mechanism and an elastic piece, wherein the movable mechanism and the elastic piece are arranged in the box body;

when the liquid stop sheet clamp is loaded on the liquid stop sheet clamp installation position, the elastic piece is in a first compression state, the liquid stop sheet clamp is abutted against the movable mechanism in the liquid stop working position, so that the liquid stop sheet clamp is closed to clamp the infusion tube to cut off a liquid circulation path in the infusion tube, wherein the abutting direction between the liquid stop sheet clamp and the movable mechanism is vertical to the placing direction of the infusion tube;

when the pump door is closed, the pump door pushes the movable mechanism to move, the movable mechanism extrudes the elastic part, when the movable mechanism moves to a conducting working position, the elastic part is in a second compression state, and the liquid stop sheet clamp releases the infusion tube so as to conduct a liquid circulation path in the infusion tube, wherein the compression amount of the elastic part in the first compression state is smaller than that of the elastic part in the second compression state;

when the pump door is opened, the elastic part pushes the movable mechanism under the action of self elastic force, the movable mechanism is switched to the liquid stopping working position from the conducting working position, and the liquid stopping sheet clamp is closed to clamp the infusion tube so as to cut off a liquid circulation path in the infusion tube.

A fourth aspect of the embodiments of the present application provides an infusion pump, which is used in cooperation with an infusion tube and a detachable liquid stopping component, and includes a pump main body and a pump door that are movably connected, wherein an infusion tube installation position is arranged on one side of the pump main body, and an infusion tube extrusion area, at least one pressure detection area and at least one bubble detection area are arranged along the infusion tube installation position;

when the infusion tube and the detachable liquid stopping component are combined and then loaded in the infusion tube installation position, the infusion pump drives the detachable liquid stopping component to perform shape adjustment, so that the section of the infusion tube located at the upstream or the downstream of the extrusion area of the infusion tube can realize switching between a conduction state and a cut-off state; when the infusion tube is loaded in the infusion tube installation position independently, the section of the infusion tube located at the upstream or the downstream of the extrusion area of the infusion tube is in a conduction state.

A fifth aspect of the embodiments of the present application provides an infusion pump, including a pump main body and a pump door which are movably connected, wherein an infusion tube installation position is arranged on one side of the pump main body, an infusion tube extrusion region, at least one pressure detection region and at least one bubble detection region are arranged along the infusion tube installation position, the infusion pump further includes a separated liquid stopping component, the separated liquid stopping component includes a liquid stopping fixed end and a liquid stopping movable end which are used in a mutually matched manner, the liquid stopping fixed end is arranged on the pump main body, and the liquid stopping movable end is arranged on the infusion tube;

before the infusion is started, the liquid stopping movable end and the liquid stopping fixed end are correctly combined together, and the liquid stopping movable end keeps a clamping state so as to cut off a liquid circulation path in the infusion tube;

when the infusion is started, the liquid stopping fixed end drives the liquid stopping movable end to switch the loosening state so as to conduct a liquid circulation path in the infusion tube;

when the infusion is finished and a pump door opening instruction is received or the pump door is detected to be opened, the liquid stopping fixed end drives the liquid stopping movable end to be switched to a clamping state, and the liquid circulation path in the infusion tube is cut off again.

A sixth aspect of the present embodiment provides an infusion pump, including a pump main body and a pump door that are movably connected, where the pump main body is provided with an infusion tube installation position, and an infusion tube extrusion region, at least one pressure detection region, and at least one bubble detection region are arranged along the infusion tube installation position;

when the detachable liquid stopping component carries an infusion tube to be loaded into the infusion tube installation position, the infusion pump drives the detachable liquid stopping component to be in a liquid stopping level, so that a section of the infusion tube located at the upstream or the downstream of the infusion tube extrusion area is in a cut-off state, and a section of the infusion tube located in the infusion tube extrusion area is in a conducting state; when the pump door is closed, the pump door and the pump sheet of the pump main body jointly extrude the infusion tube, so that the section of the infusion tube, which is positioned in the extrusion area of the infusion tube, is in a cut-off state, and the detachable liquid stopping component is driven to be switched to a conducting position at any time point after the pump door is closed, so that the section of the infusion tube, which is positioned at the upstream or the downstream of the extrusion area of the infusion tube, is in a conducting state; when the pump door is triggered to be opened, the detachable liquid stopping component is switched to a liquid stopping level, so that the section of the infusion tube, which is positioned at the upstream or downstream of the extrusion area of the infusion tube, is in a cut-off state, and then the pump door is opened, so that the section of the infusion tube, which is positioned in the extrusion area of the infusion tube, is in a recovery conduction state.

The embodiment of the application provides an infusion pump, uses through the cooperation of movable mechanism and end liquid piece holder, can only drive movable mechanism in the aspect of the drive and realize ending the liquid or switching on of ending the liquid piece holder and control, and need not control both respectively, and control procedure is simplified. In view of the liquid stopping effect, the liquid stopping can be performed before or after the infusion is started, and the liquid stopping sheet clamp and the infusion tube can be kept closed to stop the liquid when the tube is taken out and installed, so that the liquid medicine in the infusion tube does not drip out to pollute the environment. For the whole infusion pump, the infusion pump and the infusion pump are not required to be placed side by side and are stacked in the direction that the pump piece extrudes the infusion tube, so that the space in the length direction of the infusion pump can be saved, and the miniaturization of the whole infusion pump is facilitated. In a word, use the scheme of this application embodiment, can also simplify the end liquid operation and flow on the basis of guaranteeing the end liquid demand of normal infusion, automatic end liquid when being favorable to the tubulation and getting the pipe simultaneously also is favorable to the miniaturized design of transfer pump.

Drawings

FIG. 1 is a schematic diagram of an infusion system according to an embodiment of the present application, in which an infusion pump is shown in an open position;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the liquid stop clip driving module shown in FIG. 1;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a cross-sectional view B-B of FIG. 3;

FIG. 6 is a schematic view of the liquid stop clip driving module shown in FIG. 3;

FIG. 7 is a schematic structural view of the movable mechanism shown in FIG. 4;

FIG. 8 is a schematic view of the fluid stop clip shown in FIG. 1 in a viewing angle with the movable mechanism in the fluid stop operating position, with the first sub-cartridge body omitted;

FIG. 9 is a schematic view of the fluid stop clip shown in FIG. 1 from another perspective with the movable mechanism in the fluid stop operating position, with the second sub-cartridge omitted;

FIG. 10 is a schematic view of the liquid stop clip and the liquid stop clip driving module when the movable mechanism is at the conducting operating position;

FIG. 11 is a schematic view of the liquid stop clip driving module shown in FIG. 1 in cooperation with the electric driving mechanism and the guide member, wherein the movable mechanism is in a liquid stop working position;

FIG. 12 is a schematic view of the liquid stop clip driving module shown in FIG. 1 in cooperation with the electric driving mechanism and the guiding member, wherein the movable mechanism is in a conducting operating position;

FIG. 13 is a schematic view of the engagement of the fluid stop clip shown in FIG. 1 with the infusion tube;

FIG. 14 is a schematic view of the configuration of the fluid stop tab clip shown in FIG. 13;

FIG. 15 is an enlarged view of a portion of FIG. 14 at C;

FIG. 16 is a flow chart of a method for controlling an infusion pump according to an embodiment of the present disclosure;

fig. 17 is a schematic structural diagram of another infusion pump provided in the embodiment of the present application.

The reference numbers illustrate an infusion pump 100; a pump body 110; a face frame 111; a guide 112; a first limit groove 112 a; the guide side 112 b; the first locking groove 112 c; the second lock groove 112 d; an opening 112 e; an electric drive mechanism 113; a drive motor 1131; a transmission element 1132; a liquid stopping sheet holder driving module 120; a case 121; the first guide groove 121 a; a socket 121 b; a guide slope 121 c; a second stopper groove 121 d; a plug groove 121 e; a first sub-cartridge 1211; a second sub cartridge 1212; a movable mechanism, movable member 122; an abutment 1221; a guide 1222; a second trigger 1223; a first elastic member 123; a first detection element 124; a first transmitting terminal 1241; a first receiving end 1242; a second detection element 125; a second transmitting terminal 1251; a second receiving terminal 1252; a first trigger 126; a first trigger 1261; a top-down portion 1262; a light module 127; a warning tab 1271; status indicator lights 1272; a pump door 130; the second ejector 130 a; a door body 131; a lock member 132; a separate liquid stop member 140; a liquid-stopping fixing end 141; a liquid stop movable end 142; a liquid stopping sheet clamp 200; a stopper 200 a; a first clamp arm 210; a second clamp arm 220; an elastic arm 230; a first clip member 240; the first abutment portion 240 a; a second clip member 250; a second abutment 250 a; an infusion tube 300.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the present application, the "length direction", "abutment direction" is based on the directions shown in fig. 1 and 17, the "vertical direction" is based on the direction shown in fig. 5, and the "first direction" is based on the direction shown in fig. 11, it being understood that these directional terms are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present application.

The present embodiment provides an infusion pump 100, for cooperating with a liquid stopping sheet clamp 200 inserted in an infusion tube 300, please refer to fig. 1, 3 to 10, the infusion pump 100 includes a pump main body 110, a pump door 130 and a liquid stopping sheet clamp driving module 120. The pump main body 110 comprises a face frame 111 and a pump body, wherein the face frame 111 is provided with a liquid stopping sheet clamp mounting position and a transfusion tube mounting position; the pump door 130 is movably connected with the pump main body 110 to selectively avoid or shield the liquid-stop sheet clamp installation position and the infusion tube installation position, that is, when the pump door 130 is opened, the pump door 130 avoids the liquid-stop sheet clamp installation position and the infusion tube installation position, so that a user can disassemble and assemble the liquid-stop sheet clamp 200 and the infusion tube 300, and when the pump door 130 is closed, the pump door 130 shields the liquid-stop sheet clamp installation position and the infusion tube installation position to prevent the user from mistakenly touching the liquid-stop sheet clamp 200 and the infusion tube 300; the liquid stopping sheet clamp driving module 120 is arranged on the pump main body 110, and the liquid stopping sheet clamp driving module 120 comprises a movable mechanism 122; when the liquid-stopping sheet clamp 200 is loaded on the liquid-stopping sheet clamp installation position, the liquid-stopping sheet clamp 200 abuts against the movable mechanism 122 at the liquid-stopping working position, so that the liquid-stopping sheet clamp 200 is closed to clamp the infusion tube 300 to cut off the liquid circulation path in the infusion tube 300, that is, after the liquid-stopping sheet clamp 200 is loaded on the liquid-stopping sheet clamp installation position, the liquid-stopping sheet clamp 200 is used for clamping two end clamping arms of the infusion tube 300 and still keeps the state of clamping the infusion tube 300 under the abutting force of the movable mechanism 122, so that the infusion tube 300 can be kept in the liquid-stopping state; when the movable mechanism 122 is switched from the liquid-stopping working position to the conducting working position under the action of the driving force, the liquid-stopping sheet clamp 200 releases the infusion tube 300 to conduct the liquid circulation path in the infusion tube 300, that is, the clamping arms at the two ends of the liquid-stopping sheet clamp 200 can have a certain distance releasing space, so that the infusion tube 300 is released to conduct the liquid circulation path in the infusion tube 300, at the moment, the liquid medicine can flow in the infusion tube 300, and the infusion pump 100 can perform normal infusion; when the movable mechanism 122 is switched from the conduction operating position to the liquid stop operating position by the driving force, the liquid stop sheet clamp 200 is closed to clamp the infusion tube 300 so as to cut off the liquid circulation path in the infusion tube 300, that is, after the movable mechanism 122 is switched to the liquid stop operating position, the liquid stop sheet clamp 200 clamps the infusion tube 300 again so as to restore the liquid stop state of the infusion tube 300.

The infusion pump 100 of the embodiment of the present application is mainly used for controlling parameters such as infusion flow rate, so that the drug solution can be accurately and safely injected into the body of a patient or a sick animal at a set speed and a set drug amount.

The pump body 110 includes a face frame 111 and a pump body, and also includes a processor, a power module, and the like, wherein the processor is a control center of the infusion pump 100, and may use various processor chips having signal input/output and signal processing capabilities as a control device, or may control corresponding modules, components, or mechanisms in an electrical signal control manner or a software control manner, so that the infusion pump 100 can realize corresponding functions.

The abutment mainly means that the movable mechanism 122 contacts the liquid stop clip 200 to provide a supporting force to the liquid stop clip 200. When the liquid stop clip 200 abuts against the movable mechanism 122 in the liquid stop operating position, the movable mechanism 122 may abut against the liquid stop clip 200 without being driven by the driving force, or may abut against the liquid stop clip 200 with being driven by the driving force.

Specifically, before infusion, the infusion tube 300 is first placed on the infusion tube mounting position, the liquid stop sheet clamp 200 is placed on the liquid stop sheet clamp mounting position, at this time, the movable mechanism 122 is abutted against the liquid stop sheet clamp 200 to keep the infusion tube 300 in a liquid stop state, so that free flow of the liquid medicine in the infusion tube 300 can be prevented, after the infusion is started, the movable mechanism 122 is switched from the liquid stop working position to the conducting working position under the action of driving force, the liquid stop sheet clamp 200 releases the infusion tube 300, so that normal infusion of the liquid medicine along the infusion tube 300 can be realized, when the infusion tube 300 and the liquid stop sheet clamp 200 need to be taken down after the infusion is finished, the movable mechanism 122 is switched from the conducting working position to the liquid stop working position, the movable mechanism 122 is again abutted against the liquid stop sheet clamp 200 to stop the liquid flow path in the infusion tube 300, so that abnormal infusion or dripping of the liquid medicine in a hospital environment can be prevented, that is to say, before the infusion is started and after the infusion is completed, the movable mechanism 122 is at the liquid stop working position, so that the infusion tube 300 can be kept in the liquid stop state without manually closing the liquid stop clip 200, and the situation that the user does not close the liquid stop clip 200 in time or even forgets to close the liquid stop clip 200 can be avoided while the liquid stop is facilitated. In addition, since the liquid stopping sheet clip driving module 120 according to the embodiment of the present application can be used for inserting the liquid stopping sheet clip 200 and stopping the liquid in the infusion tube 300, there is no need to provide another liquid stopping structure on the infusion pump 100, so that the installation space of the infusion pump 100 in the length direction can be saved, and the overall structure of the infusion pump 100 can be made more compact.

During the switching process of the movable mechanism 122 between the conducting operating position and the liquid stopping operating position, the movable mechanism 122 can rotate or move linearly relative to the face frame 111.

Referring to fig. 3 to 5, in an embodiment, the liquid stopping clip driving module 120 includes a box 121, a moving mechanism 122 movably disposed in the box 121, and a liquid stopping clip mounting position is communicated with the box 121, which is equivalent to the liquid stopping clip mounting position disposed in the box 121. The box 121 is convenient for installing the components such as the movable mechanism 122, and the liquid stopping sheet clamp driving module 120 on the pump body 110.

Referring to fig. 3 to 5, in an embodiment, the box body 121 includes a first sub-box 1211 and a second sub-box 1212, and the first sub-box 1211 and the second sub-box 1212 enclose to form an inner cavity, thereby facilitating installation of components such as the movable mechanism 122. It will be appreciated that in some embodiments, the case 121 may be a unitary structure or other structures as long as it is ensured that the movable mechanism 122 and other components can be disposed in the case 121.

In some embodiments, the liquid stop clip driving module 120 may not have the box 121, that is, the movable mechanism 122 and other components may be directly disposed on the pump body 110.

The driving force may be an electric driving force or a mechanical driving force, or a combination of the electric driving force and the mechanical driving force, as long as the movable mechanism 122 can be driven to switch between the liquid stop operating position and the conducting operating position, and accordingly, the movable mechanism 122 can be switched from the conducting operating position to the liquid stop operating position in various ways, for example, please refer to fig. 5, 8, 9 to 12, in an embodiment, the liquid stop clip driving module 120 further includes an elastic member 123 and an electric driving mechanism 113, and the electric driving mechanism 113 is configured to provide an electric driving force to drive the movable mechanism 122 to switch from the liquid stop operating position to the conducting operating position; the elastic element 123 is used for providing an elastic force to drive the movable mechanism 122 to switch from the conducting working position to the liquid-stopping working position; that is, the movable mechanism 122 is switched from the liquid stop operation position to the liquid conduction operation position by the driving of the electric driving mechanism 113, the liquid stop sheet clamp 200 releases the infusion tube 300, and the infusion tube 300 is changed from the liquid stop state to the liquid conduction state, but when the movable mechanism 122 needs to be switched from the liquid conduction operation position to the liquid stop operation position, the movable mechanism 122 is switched from the liquid conduction operation position to the liquid stop operation position by the elastic force of the elastic member 123, that is, the mechanical driving force, and when the movable mechanism 122 is switched from the liquid conduction operation position to the liquid stop operation position by the elastic force of the elastic member 123, the liquid stop sheet clamp 200 clamps the infusion tube 300, and the infusion tube 300 is changed from the liquid conduction state to the liquid stop state.

In some embodiments, the electric driving mechanism 113 may drive the movable mechanism 122 to switch from the conducting operating position to the liquid-stopping operating position, the elastic element 123 drives the movable mechanism 122 to switch from the liquid-stopping operating position to the conducting operating position, the elastic element 123 may drive the movable mechanism 122 to switch from the liquid-stopping operating position to the conducting operating position, or drive the movable mechanism 122 to switch from the conducting operating position to the liquid-stopping operating position, or the electric driving mechanism 113 may drive the movable mechanism 122 to switch from the liquid-stopping operating position to the conducting operating position, or drive the movable mechanism 122 to switch from the conducting operating position to the liquid-stopping operating position.

In one embodiment, when the liquid stop clip 200 is loaded on the liquid stop clip mounting position and the pump door 130 is closed, the movable mechanism 122 is in the liquid stop operating position, and the liquid stop clip 200 abuts against the movable mechanism 122 in the liquid stop operating position, so that the liquid stop clip 200 holds the infusion tube 300 to block the liquid flow path in the infusion tube 300. That is, when the pump door 130 is closed but before the infusion is initiated, the infusion tube 300 can be in the fluid-stop state all the time, and the fluid-stop clip 200 mainly clips or releases the infusion tube 300 by cooperating with the movable mechanism 122 without being influenced by the pump door 130.

In one embodiment, when the movable mechanism 122 is in the conducting operating position and the pump door 130 is opened and triggered, the movable mechanism 122 is switched from the conducting operating position to the liquid stopping operating position under the action of the driving force, so that the liquid stopping sheet clamp 200 is closed to clamp the infusion tube 300 to block the liquid circulation path in the infusion tube 300, that is, as long as the pump door 130 is opened, the infusion tube 300 is switched to the liquid stopping state, thereby further improving the liquid stopping effect.

When the movable mechanism 122 is switched to the conduction working position, the movable mechanism 122 can be separated from the liquid stop sheet clamp 200, can also be contacted with the liquid stop sheet clamp 200, and can also be abutted against the liquid stop sheet clamp 200 to a certain extent, it should be noted that when the movable mechanism 122 is abutted against the liquid stop sheet clamp 200 in the conduction working position, the liquid stop sheet clamp 200 can also apply a certain clamping force to the infusion tube 300, the infusion tube 300 can be deformed to a certain extent under the clamping force of the liquid stop sheet clamp 200, but the infusion tube 300 is still in the conduction state, and the liquid medicine can flow in the infusion tube 300.

Referring to fig. 1, 2, 13 and 14, in an embodiment, the liquid stop clip 200 includes a first clip arm 210, a second clip arm 220, a first clip member 240 and a second clip member 250, the first clip arm 210 and the second clip arm 220 are connected to each other, the first clip member 240 is disposed on the first clip arm 210, and the second clip member 250 is disposed on the second clip arm 220; the pump door 130 comprises a second pushing piece 130a, when the liquid-stopping sheet clamp 200 is loaded on the liquid-stopping sheet clamp installation position, the liquid-stopping sheet clamp 200 is abutted against the movable mechanism 122 at the liquid-stopping working position, the first clamping piece 240 is clamped and matched with the second clamping piece 250, the infusion tube 300 is kept in the liquid-stopping state depending on the state of the liquid-stopping sheet clamp 200, when the pump door 130 is closed, the second pushing member 130a pushes at least one of the first clamping member 240 or the second clamping member 250, so that the first clamping member 240 is separated from the second clamping member 250, after the first clamping member 240 is separated from the second clamping member 250, at this time, the liquid stop sheet clamp 200 is in a semi-closed state, but because the movable mechanism 122 is still in the liquid stop working position, which restricts the movement of the liquid sheet holder 200 in the releasing direction of the first and second clamp arms 210 and 220, therefore, the movable mechanism 122 can keep the infusion tube 300 in the liquid stop state by abutting against the liquid stop clip 200. When the movable mechanism 122 is switched from the liquid-stop operating position to the conducting operating position by the driving force in the state that the first engaging member 240 is separated from the second engaging member 250, the first arm 210 and the second arm 220 have a certain moving space in the releasing direction, and the liquid-stop sheet clamp 200 releases the infusion tube 300 to conduct the liquid flow path in the infusion tube 300.

Referring to fig. 1, 2, 13 and 14, in an embodiment, when the movable mechanism 122 is switched from the conducting operating position to the liquid-stopping operating position by the driving force, the liquid-stopping sheet clamp 200 is closed to clamp the infusion tube 300 so as to cut off the liquid flow path in the infusion tube 300, and when the pump door 130 is opened, the second pushing member 130a is separated from the liquid-stopping sheet clamp 200, and the first engaging member 240 and the second engaging member 250 are restored to the engaging state by the self-elastic force. That is, when the infusion is completed and the user opens the pump door 130, the second pushing member 130a is separated from the liquid stop clip 200, and the second engaging member 250 returns to the initial position and engages with the first engaging member 240 again, so that the infusion tube 300 can be continuously maintained in the liquid stop state after the liquid stop clip 200 is pulled out of the cassette body 121, thereby preventing the liquid from flowing out during the tube pulling. In addition, in this operation mode, after the pump door 130 is opened, the first clamping member 240 and the second clamping member 250 can automatically clamp the first clamping arm 210 and the second clamping arm 220 to keep the state of clamping the infusion tube 300, and the user does not need to manually clamp the first clamping member 240 and the second clamping member 250, so that the user operation can be reduced; and simultaneously, the user can conveniently pull the liquid stopping sheet clamp 200 out of the box body 121.

Referring to fig. 1, fig. 2, fig. 14 and fig. 15, in an embodiment, the first engaging member 240 has a first abutting portion 240a, and the second engaging member 250 has a second abutting portion 250 a; when the pump door 130 is in an open state and the liquid stop clip 200 is loaded on the liquid stop clip mounting position, the first clamping piece 240 and the second clamping piece 250 are positioned on one side of the box body 121 close to the pump door 130, and the first abutting part 240a and the second abutting part 250a abut against each other in the loosening direction of the liquid stop clip 200; when the pump door 130 is closed, the second pushing member 130a pushes the second engaging member 250, the second abutting portion 250a moves toward the direction close to the elastic arm 230, and the second abutting portion 250a is separated from the first abutting portion 240a, so that the first engaging member 240 can be separated from the second engaging member 250. In some embodiments, a corresponding trigger structure may also be disposed on the liquid stop clip driving module 120 to control the separation of the first clip 240 and the second clip 250.

Referring to fig. 14 and fig. 15, in an embodiment, the liquid-stopping sheet clamp 200 is an elastic liquid-stopping sheet clamp, the elastic liquid-stopping sheet clamp has an elastic arm 230, the first engaging member 240 is disposed at an end of the first clamping arm 210 away from the elastic arm 230, and the second engaging member 250 is disposed at an end of the second clamping arm 220 away from the elastic arm 230, when the movable mechanism 122 is switched from the liquid-stopping working position to the conducting working position under the driving force, the elastic liquid-stopping sheet clamp 200 releases the infusion tube 300 under the elastic force of itself, so that the liquid flow path in the infusion tube 300 is conducted.

The elastic liquid-stopping clip in fig. 14 has two second clamping members 250 and a first clamping member 240, the two second clamping members 250 are oppositely disposed at two sides of the first clamping member 240, each second clamping member 250 has a second abutting portion 250a, correspondingly, the first clamping member 240 is provided with two first abutting portions 240a, and each first abutting portion 240a is respectively matched with the second abutting portion 250a of the corresponding second clamping member 250, thereby improving the clamping effect of the first clamping member 240 and the second clamping member 250, and it can be understood that, in some embodiments, only one second clamping member 250 may be disposed.

In another embodiment, the fluid-stopping clip 200 may also be an inelastic fluid-stopping clip, that is, the inelastic fluid-stopping clip has no elastic arm 230, for example, the first clipping arm 210 and the second clipping arm 220 of the inelastic fluid-stopping clip may be rotatably connected, and after the movable mechanism 122 is switched from the fluid-stopping working position to the conducting working position under the driving force, at least one of the first clipping arm 210 and the second clipping arm 220 is relatively rotated by the movable mechanism 122 to release the infusion tube 300.

Referring to fig. 6, in an embodiment, a side of the box body 121 close to the pump door 130 is provided with a socket 121b for inserting and pulling the liquid stop clip 200, and the socket 121b in fig. 6 is formed on the first sub-box 1211, that is, the liquid stop clip mounting position is disposed in the first sub-box 1211, and the movable mechanism 122 is disposed in the second sub-box 1212, in other embodiments, the socket 121b may also be formed on the second sub-box 1212. Interface 121b department has the direction inclined plane 121c that is used for supplying the guide of liquid stopping piece holder 200 to insert in interface 121b, direction inclined plane 121c can be inclined plane or smooth slope curved surface, when inserting liquid stopping piece holder 200 from interface 121b into box body 121, liquid stopping piece holder 200 can slide into box body 121 along direction inclined plane 121c, thereby make the user can insert liquid stopping piece holder 200 into box body 121 without aiming at wantonly, and then do benefit to and reduce the degree of difficulty that liquid stopping piece holder 200 inserted box body 121, and do benefit to the blind insertion that realizes liquid stopping piece holder 200, reduce the maloperation.

Referring to fig. 6 and 13, in an embodiment, a second limiting groove 121d is disposed on a side wall of the box body 121, and the liquid stop clip 200 has a limiting portion 200 a; when the liquid stopping sheet clamp 200 is inserted into the box body 121, the liquid stopping sheet clamp 200 is in clamping fit with the second limiting groove 121d through the limiting part 200a, therefore, the liquid stopping sheet clamp 200 can be limited, the liquid stopping sheet clamp 200 can be accurately and reliably positioned, and the swing of the liquid stopping sheet clamp 200 is reduced.

Referring to fig. 6, in an embodiment, the guiding inclined surface 121c and the second limiting groove 121d are respectively located at two opposite sides of the insertion opening 121b, so that the compactness of the box body 121 is improved, and the guiding inclined surface 121c and the second limiting groove 121d can be prevented from interfering with each other.

In one embodiment, the color of the face frame 111 is different from the color of the liquid stopping sheet clamp 200, and the color of the box body 121 at least at the position of the insertion port 121b is the same as the color of the liquid stopping sheet clamp 200, so that a user can conveniently and quickly identify the insertion position of the liquid stopping sheet clamp 200, and the installation efficiency of the liquid stopping sheet clamp 200 is improved; for example, since the insertion port 121b of the liquid stop sheet clip driving module 120 in fig. 3 is disposed on the first sub-case 1211, the color of the entire first sub-case 1211 can be set to be the same as the color of the liquid stop sheet clip 200 for convenience of arrangement, and in other embodiments, the color of the entire case 121 can also be set to be the same as the color of the liquid stop sheet clip 200.

Referring to fig. 3, 5, 8 and 12, in an embodiment, the electric driving mechanism 113 includes a driving motor 1131 and a transmission element 1132 drivingly connected to the driving motor 1131, and the pump body 110 further includes a guide 112, and the guide 112 is connected to the transmission element 1132 and located outside the box body 121; the wall of the box body 121 has a first guide groove 121a communicating the inside and the outside of the box body 121, the first guide groove 121a in fig. 3 is disposed on the top wall of the box body 121, and in some embodiments, the first guide groove 121a may also be disposed on the side wall or the bottom wall of the box body 121. In this embodiment, the first guide groove 121a is formed by enclosing the first sub-box 1211 and the second sub-box 1212 together; in other embodiments, the first guide groove 121a may be formed on the first sub-cartridge 1211 or the second sub-cartridge 1212 separately. The moving mechanism 122 includes an abutment 1221 and a guide 1222 connected to the abutment 1221, and the guide 1222 passes through the first guide groove 121a and protrudes out of the case 121. When the movable mechanism 122 is in the liquid stop working position, the abutting piece 1221 abuts against the liquid stop sheet clamp 200, and the guide piece 1222 is in the first initial position in the first guide groove 121 a; the driving motor 1131 drives the transmission element 1132 to drive the guide member 112 to move linearly in the first direction, the guide member 112 guides the guide member 1222 to move from the first initial position to the first target position in the first guide groove 121a along the extending direction of the first guide groove 121a, and the movable mechanism 122 is switched from the liquid-stop operating position to the conducting operating position. That is, the electric driving mechanism 113 may drive the movement of the movable mechanism 122 through the intermediate member of the guide member 112, and thereby, may facilitate the movement of the guide member 1222 from the first initial position in the first guide groove 121a to the first target position in the first guide groove 121 a.

The transmission element 1132 may be a ball screw, a gear and a rack, or a combination of various components, for example, a combination of a ball screw and a plurality of gears, so long as the guide 1222 is driven by the driving motor 1131 to perform linear motion.

For example, referring to fig. 11 and 12, in one embodiment, the guide member 112 pushes the guide member 1222 to move from the first initial position to the first target position, that is, during the linear movement of the guide member 112 in the first direction, the guide member 112 abuts against the guide member 1222 and applies a pushing force to the guide member 1222, so that the guide member 1222 can be pushed from the first initial position to the first target position.

In another embodiment, the liquid stopping clip driving module 120 further includes an elastic member disposed in the box 121 and connected to the movable mechanism 122, wherein when the movable mechanism 122 is configured to rotate relative to the box 121, the elastic member may be a torsion spring, when the movable mechanism 122 is configured to move linearly relative to the box 121, the elastic member may be a compression spring, a tension spring, or the like, when the movable mechanism 122 is in the liquid stopping working position, the guide member 112 stops the guide member 1222, and the elastic member is elastically deformed, that is, when the guide member 112 blocks a partial region of the first guide groove 121a, so that the guide member 112 can stop the guide member 1222 from moving to the first target position; when the driving motor 1131 drives the transmission element 1132 to linearly move the guide member 112 in the first direction, the guide member 112 escapes from the guide member 1222, that is, the guide member 112 moves away from the position where the first guide groove 121a is shielded, so that the guide member 1222 can move to the first target position under the elastic force of the elastic member.

Referring to fig. 11 and 12, in an embodiment, the guiding element 112 has a guiding side 112b, and the guiding element 112 guides the guiding element 1222 to move from the first initial position to the first target position through the guiding side 112 b; the direction in which the guide 112 linearly moves is perpendicular to the extending direction of the guide groove, and the extending direction of the guide side 112b is oblique to the direction in which the guide 112 linearly moves and the extending direction of the first guide groove 121a, respectively.

Specifically, when the guide member 112 moves linearly in the first direction, the guide side 112b passes through the first guide groove 121a from one side of the first guide groove 121a in the extending direction, and since the extending direction of the guide side 112b is oblique to the extending direction of the first guide groove 121a, the position where the guide side 112b overlaps the first guide groove 121a moves in the extending direction of the first guide groove 121a during the process where the guide side 112b passes through the first guide groove 121a, thereby allowing the guide side 112b to guide the guide 1222 from the first initial position to the first target position.

The guide 112 is disposed perpendicular to the extending direction of the guide groove, which is advantageous in that the guide 112 can be disposed to move linearly along the length direction of the infusion pump 100, thereby making full use of the space in the length direction of the infusion pump 100 to facilitate the arrangement of the electric driving mechanism 113, and further making the overall structure of the infusion pump 100 more compact.

In some embodiments, the direction of the linear movement of the guide member 112 may be parallel to or oblique to the extending direction of the guide slot, as long as the guide member 112 can guide the guide member 1222 to move from the first initial position to the first target position.

In addition, it should be noted that the vertical and parallel directions described in this application are allowed to have certain tolerances, that is, vertical includes substantially vertical and parallel includes substantially parallel.

Referring to fig. 11 and 12, in an embodiment, the guiding element 112 has a first limiting groove 112a, the guiding element 1222 is disposed in the first limiting groove 112a, and a portion of a sidewall of the first limiting groove 112a is a guiding side 112 b. The first stopper groove 112a may serve as a stopper for the guide member 112 by cooperating with the guide member 1222 to prevent a large deviation in the position of the guide member 112.

Referring to fig. 11 and 12, in an embodiment, the guiding element 112 further has a first locking groove 112c communicated with the first limiting groove 112a, and when the movable mechanism 122 is in the conducting operating position, the guiding element 1222 is located in the first locking groove 112c and is in locking engagement with the first locking groove 112 c. The provision of the first locking groove 112c may facilitate locking of the movable mechanism 122 in the on operating position.

Referring to fig. 5, 8, 11 and 12, in an embodiment, the movable mechanism 122 is rotatably disposed in the box 121, when the liquid stop clip 200 is loaded on the liquid stop clip mounting position and the pump door 130 is closed, the liquid stop clip 200 abuts against the movable mechanism 122 at the liquid stop working position in the vertical direction, that is, the entire movable mechanism 122 may be located above or below the liquid stop clip 200, the movable mechanism 122 abuts against the liquid stop clip 200 from above or below the liquid stop clip 200, or a partial region of the movable mechanism 122 may be located above or below the liquid stop clip 200, and a region of the movable mechanism 122 located above or below the liquid stop clip 200 abuts against the liquid stop clip 200. When the electric driving mechanism 113 drives the liquid stopping sheet clamp 200 to rotate to the conducting working position, the liquid stopping sheet clamp 200 releases the infusion tube 300, that is, the movable mechanism 122 is driven by the electric driving mechanism 113 to switch from the liquid stopping working position to the conducting working position through rotation, and when the movable mechanism 122 is driven by the driving force to switch from the conducting working position to the liquid stopping working position through reverse rotation, the liquid stopping sheet clamp 200 is closed to clamp the infusion tube 300.

The infusion pump 100 can be of many different types, however, the direction of abutment of the fluid stop clip 200 with the movable mechanism 122 in the fluid stop operating position can be perpendicular to the direction of placement of the infusion tube. For example, referring to fig. 1, in the infusion pump 100 of the above embodiment, when the abutting direction of the liquid stop clip 200 and the movable mechanism 122 is perpendicular to the placing direction of the infusion tube, the liquid stop clip 200 actually abuts against the movable mechanism 122 in the liquid stop working position in the vertical direction (shown in fig. 5). Referring to fig. 17, in another infusion pump 100, which is a vertical pump (it can be understood that the infusion pump of the above embodiment is rotated 90 ° counterclockwise), when the abutting direction of the liquid stop clip 200 of the vertical pump with the movable mechanism 122 is perpendicular to the placing direction of the infusion tube, the liquid stop clip 200 is actually abutted with the movable mechanism 122 in the liquid stop working position in the horizontal direction (shown in fig. 5). Normally, the infusion tube is placed in the longitudinal direction of the infusion pump.

The driving force for the reverse rotation of the movable mechanism 122 may be the driving force provided by the electric driving mechanism 113, or the driving force provided by a reset member such as an elastic member, for example, please refer to fig. 5, 8, 11 and 12, in a specific embodiment, the box body 121 is provided with an elastic member 123, one end of the elastic member 123 is connected with the movable mechanism 122, the other end of the elastic member 123 is connected with the box body 121, the guide 112 is located outside the box body 121, when the liquid stop clip 200 is loaded on the liquid stop clip mounting position and the pump door 130 is closed, the elastic member 123 is in a first compression state, the electric driving mechanism 113 drives the guide 112 to move linearly in a first direction, during the movement of the guide 112 in the first direction, the movable mechanism 122 is driven by the guide 112 to rotate in the first needle direction until the working position is turned on, during the rotation of the movable mechanism 122 in the first needle direction, the resilient member 123 is compressed until the resilient member 123 is in the second compressed state. The electric driving mechanism 113 drives the guiding member 112 to move linearly in the second direction, and during the movement of the guiding member 112 in the second direction, the movable mechanism 122 is driven by the elastic member 123 to rotate in a second clockwise direction opposite to the first clockwise direction until reaching the liquid stop working position. That is, the elastic member 123 may cooperate with the abutting member 1221 to abut against the liquid stopping sheet clip 200, and may push the movable mechanism 122 from the conducting operating position back to the liquid stopping operating position, thereby improving the liquid stopping effect and facilitating the reset of the movable mechanism 122. In this embodiment, the elastic member 123 is a compression spring, and in other embodiments, the elastic member 123 may also be a torsion spring.

In the above embodiment, the first guide groove 121a is provided on the top wall of the case 121, the first initial position is located at the end of the first guide groove 121a away from the pump door 130, and the first target position is located at the end of the first guide groove 121a close to the pump door 130, and in another specific embodiment, the first guide groove is also located at the end of the first guide groove 121a close to the pump door 130

In another specific embodiment, the first guide slot is arranged on the top wall of the box body, the first initial position is located at one end, close to the pump door, of the first guide slot, the first target position is located at one end, far away from the pump door, of the first guide slot, the abutting part faces the insertion port, and the elastic part is located on one side, far away from the insertion port, of the abutting part; when the guide piece is at the first initial position, the elastic piece is in a first compression state; when the driving motor drives the transmission element to drive the guide piece to move linearly towards the first direction, the guide piece pushes the guide piece to move from the first initial position to the first target position, the movable mechanism moves linearly towards the direction far away from the interface, and when the guide piece moves to the first target position, the elastic piece is switched to the second compression state; when the driving motor drives the transmission element to drive the guide piece to linearly move towards the second direction, the elastic piece pushes the movable mechanism to linearly move towards the direction close to the plug interface under the action of the elastic force of the elastic piece, so that the guide piece moves to the first initial position from the first target position. That is, the movable mechanism may also be engaged with the elastic member by way of a linear motion.

It is understood that, in some embodiments, the elastic member 123 may not be provided, for example, when the driving motor 1131 drives the transmission element 1132 to move the guide member 112 linearly in the second direction, the guide member 1222 may also be pulled back from the first target position to the first initial position by the guide member 112.

Referring to fig. 1, 11 and 12, in an embodiment, the guide 112 moves linearly along the length direction of the infusion pump 100, the pump door 130 includes a door 131 rotatably connected to the pump body 110 and a locking member 132 disposed on the door 131, the guide 112 further has a second locking groove 112d extending along the length direction of the infusion pump 100, and an opening 112e is formed on a side of the second locking groove 112d close to the pump door 130; when the pump door 130 is closed, the locking member 132 is located in the second locking groove 112d and corresponds to the opening 112e, and the movable mechanism 122 is in the liquid stop working position, that is, when the locking member 132 is located at the opening 112e, the locking member 132 can move from the opening 112e to the outside of the second locking groove 112d, so as to open the pump door 130; when the driving motor 1131 drives the transmission element 1132 to drive the guide member 112 to move linearly in the first direction, the opening 112e is staggered with the locking member 132, the second locking groove 112d is locked with the locking member 132, and the pump door 130 is locked, that is, the pump door 130 is locked and cannot be opened during the linear movement of the guide member 112 in the first direction.

In addition, since the movable mechanism 122 is also in the process of switching from the liquid stop operation position to the conducting operation position during the process of driving the transmission element 1132 to drive the guide 112 to move linearly in the first direction by the driving motor 1131, when the guide 112 is used in cooperation with the pump door 130, the pump door 130 is kept in the locked state for a period of time corresponding to a period of time after the infusion pump 100 is started until the infusion pump 100 stops operating, and thus, the safety of the infusion process can be improved.

The advantage of using the same guide 112 to cooperate with the movable mechanism 122 and the pump door 130, respectively, is that only one set of electric drive mechanism 113 is needed to control the movable mechanism 122 and the pump door 130, thereby reducing the number of electric drive mechanisms 113 used and saving the production cost while making the overall structure of the infusion pump 100 as compact as possible.

It is understood that the guide 112 may not be disposed in the pump main body 110, for example, in an embodiment, a rotating shaft rotatably connected to the box 121 may be disposed in the liquid stopping clip driving module 120, a part of the rotating shaft is disposed in the box 121 and connected to the movable mechanism 122, and one end of the rotating shaft is disposed outside the box 121 and drivingly connected to the electric driving mechanism 113, it should be noted that the electric driving mechanism 113 may only have the driving motor 1131, or may have the driving motor 1131 and the transmission element 1132, and the transmission element 1132 may be of various types, for example, the transmission element 1132 may be a combination of a gear and a gear, or may be a combination of a turbine and a worm, and so long as it is ensured that the transmission element 1132 can drive the rotating shaft to rotate, when the electric driving mechanism 113 has only the driving motor 1131, the rotating shaft is connected to the output end of the driving motor 1131, and when the transmission element 1132 is further disposed in the electric driving mechanism 113, the shaft is coupled to the transmission element 1132. That is, the rotating shaft is directly connected to the electric driving mechanism 113 in a driving manner, and the electric driving mechanism 113 drives the rotating shaft to rotate, so that the rotating shaft drives the movable mechanism 122 to switch between the liquid-stopping working position and the conducting working position.

In another embodiment, the electric driving mechanism 113 includes a driving motor 1131 and a transmission element 1132 drivingly connected to the driving motor 1131, the liquid stop clip driving module 120 further includes a push-pull shaft, one end of the push-pull shaft is located in the box 121 and connected to the movable mechanism 122, the other end of the push-pull shaft is located outside the box 121 and connected to the transmission element 1132, and the driving motor 1131 drives the push-pull shaft to move linearly through the driving transmission element 1132, so that the push-pull shaft drives the movable mechanism 122 to switch between the liquid stop operating position and the conducting operating position. That is, the transmission element 1132 capable of performing a linear motion may be used to drive the push-pull shaft to perform a linear motion, so that the movable mechanism 122 is switched between the liquid-stop operating position and the conducting operating position through the linear motion.

In one embodiment, when the pump door 130 is in the open state and the liquid stop clip 200 is loaded on the liquid stop clip mounting position, the movable mechanism 122 is in the liquid stop operating position; when the pump door 130 is closed, the pump door 130 pushes the movable mechanism 122 from the liquid-stop operating position to the conducting operating position. That is, a mechanical driving force may be applied to the movable mechanism 122 by the pump door 130 so that the movable mechanism 122 can be switched from the liquid-stop operation position to the conduction operation position.

In an embodiment, the liquid stopping clip driving module 120 further includes an elastic member disposed in the box 121, one end of the elastic member is connected to the box 121, the other end of the elastic member is connected to the moving mechanism 122, the moving mechanism 122 can rotate relative to the box 121 and can also move linearly relative to the box 121, accordingly, when the moving mechanism 122 is in a structure of rotating relative to the box 121, the elastic member can be a torsion spring, and when the moving mechanism 122 is in a structure of moving linearly relative to the box 121, the elastic member can be a compression spring; when the liquid stop sheet clamp 200 is loaded on the liquid stop sheet clamp installation position, the elastic piece is in a first compression state, the liquid stop sheet clamp 200 is abutted against the movable mechanism 122 in the liquid stop working position in the vertical direction, so that the liquid stop sheet clamp 200 is closed to clamp the infusion tube 300, and the liquid circulation path in the infusion tube 300 is cut off; when the pump door 130 is closed, the pump door 130 pushes the movable mechanism 122 to move, the movable mechanism 122 presses the elastic element, when the movable mechanism 122 moves to the conducting working position, the elastic element is in a second compression state, and the liquid stop clamp 200 releases the infusion tube 300 to conduct the liquid circulation path in the infusion tube 300, wherein the compression amount of the elastic element in the first compression state is smaller than that of the elastic element in the second compression state; when the pump door 130 is opened, the elastic member pushes the movable mechanism 122 under the action of its own elastic force, the movable mechanism 122 is switched from the conducting operating position to the liquid-stopping operating position, and the liquid-stopping sheet clamp 200 is closed to clamp the infusion tube 300, so as to cut off the liquid flow path in the infusion tube 300. That is, infusion pump 100 may rely on the mechanical actuation force of pump door 130 and the resilient member to switch movable mechanism 122 between the ON operating position and the OFF operating position.

In one embodiment, the infusion pump 100 may further include a switch mechanism movably connected to the pump body 110, before infusion, when the pump door 130 is in an open state, the switch mechanism and the movable mechanism 122 may be engaged by abutting, clamping, inserting, or the like, so that the movable mechanism 122 is kept at the liquid stop working position, when the pump door 130 is closed, a user may engage the switch mechanism with the pump door 130 by moving the switch mechanism to lock the pump door 130, and at the same time, the switch mechanism is separated from the movable mechanism 122 to enable the movable mechanism 122 to switch to the conducting working position, after infusion is completed, the user may separate the switch mechanism from the pump door 130 by moving the switch mechanism to unlock the pump door 130, and at the same time, the switch mechanism is engaged with the movable mechanism 122 again to return the movable mechanism 122 to the liquid stop working position, that is, when the pump door 130 is locked by providing the switch mechanism, the movable mechanism 122 is switched to the conducting operating position, and when the pump door 130 is unlocked, the movable mechanism 122 is switched to the liquid-stopping operating position.

Referring to fig. 4, 5, and 8 to 10, in an embodiment, the liquid stop clip driving module 120 further includes a first detecting element 124, and when the liquid stop clip 200 is inserted into the box 121, the liquid stop clip 200 triggers the first detecting element 124 to output first in-place information. By arranging the first detection element 124, whether the liquid stopping sheet clamp 200 is inserted in place can be judged.

For example, referring to fig. 4, 5, and 8 to 9, in an embodiment, the liquid stop clip driving module 120 includes a first triggering member 126 movably disposed in the box body 121, and when the liquid stop clip 200 is loaded on the liquid stop clip mounting position, the liquid stop clip 200 pushes the first triggering member 126, so that the first triggering member 126 triggers the first detecting element 124 to output the first in-place information, that is, the liquid stop clip 200 can trigger the first detecting element 124 to output the first in-place information through the first triggering member 126 disposed in the box body 121.

Referring to fig. 4, fig. 5, and fig. 8 to fig. 9, in a specific embodiment, the first detecting element 124 is a first optical coupler, and the first optical coupler includes a first transmitting end 1241 and a first receiving end 1242 that are disposed opposite to each other and spaced apart from each other; when the first trigger 126 is in an initial state, the first trigger 1261 is located at an interval between the first transmitting end 1241 and the first receiving end 1242, and at this time, the first trigger 1261 cuts off a signal transmission path between the first transmitting end 1241 and the first receiving end 1242, and the first receiving end 1242 cannot receive a signal transmitted by the first transmitting end 1241; when the liquid stop clip 200 is inserted into the box body 121, the liquid stop clip 200 applies a pushing force to the abutting portion 1262, so that the first trigger 126 rotates to drive the first trigger portion 1261 to move out from the interval between the first transmitting end 1241 and the first receiving end 1242, and after the first trigger 126 moves out from the interval between the first transmitting end 1241 and the first receiving end 1242, the signal transmission path between the first transmitting end 1241 and the first receiving end 1242 is conducted, and the first receiving end 1242 receives a signal transmitted by the first transmitting end 1241, so that the first optical coupler can output first in-position information.

In some embodiments, when the first trigger 126 is in the initial state, the first trigger part 1261 is located outside the first optical coupler, and when the liquid stop clip 200 is inserted into the box body 121, the liquid stop clip 200 pushes the top part 1262, so that the first trigger 126 rotates to drive the first trigger part 1261 to move to the interval between the first emitting end 1241 and the first receiving end 1242.

It is understood that the first detection element 124 is not limited to being a first optical coupler, and in some embodiments, the first detection element 124 may be a hall sensor, a key switch, an optical proximity sensor, a pressure sensor, an ultrasonic sensor, or the like.

In some embodiments, the first triggering member 126 may also trigger the first detecting element 124 to output the first in-position information by way of a linear motion.

In some embodiments, the first trigger 126 may not be provided, for example, the liquid stopping clip 200 may be provided with a second trigger, when the liquid stopping clip 200 is inserted in the box body 121 to a certain position, the second trigger extends into a gap between the first transmitting end 1241 and the first receiving end 1242 of the first optical coupler to trigger the first optical coupler to output the first in-place information, or when the liquid stopping clip 200 is inserted in the box body 121 to a certain position, the liquid stopping clip 200 contacts the key switch to turn on the key switch.

In one embodiment, the processor is in signal connection with the electric driving mechanism 113, and the processor is configured to receive the first-in-place information and control the electric driving mechanism 113 to drive the movable mechanism 122 to switch from the liquid-stop operating position to the conducting operating position, that is, the processor may restart the infusion pump 100 after determining that the liquid-stop clip 200 is inserted in place, thereby improving the safety of the use of the infusion pump 100.

Referring to fig. 4 and 5, in an embodiment, a light module 127 may be further disposed in the liquid stopping clip driving module 120, and the light module 127 is configured to emit a prompt light or change a color of the prompt light according to the first in-place information.

Specifically, the first detecting element 124 may directly output the first in-place information to the light module 127, and the light module 127 emits the prompting light or changes the color of the prompting light after receiving the first in-place information, or the processor receives the first in-place information and controls the light module 127 to emit the prompting light or change the color of the prompting light, so that a user can intuitively determine whether the liquid stopping sheet holder 200 is installed in place.

Referring to fig. 4 and 5, in an embodiment, the light module 127 includes a warning sheet 1271 and a status indicator lamp 1272, a lamp hole (not shown) is formed on the box body 121, the status indicator lamp 1272 is inserted into the lamp hole, and the warning sheet 1271 is shielded outside the status indicator lamp 1272. The warning sheet 1271 is provided with warning patterns, and when the status indicator lamp 1272 is lighted, the warning patterns can be highlighted. The warning sheet 1271 can increase warning marks and is beneficial to beautifying the appearance visual effect of the liquid stopping sheet clamp driving module 120.

In one embodiment, a third detecting element may be further disposed in the pump body 110, and when the infusion tube 300 is located at the installation position of the infusion tube installation position, the infusion tube 300 triggers the third detecting element to output the second in-position information. By providing the third detecting element, it can be determined whether the infusion tube 300 is mounted in place.

In an embodiment, the processor may also receive only the second in-place information and control the electric driving mechanism 113 to drive the movable mechanism 122 to switch from the liquid-stopping working position to the conducting working position according to the second in-place information, or the processor may also receive the first in-place information and the second in-place information and control the electric driving mechanism 113 to drive the movable mechanism 122 to switch from the liquid-stopping working position to the conducting working position according to the first in-place information and the second in-place information.

It will be appreciated that whether the driving force for driving the movable mechanism 122 from the fluid-stop operating position to the fluid-conducting operating position is an electrical driving force or a mechanical driving force, the processor may receive the first-in-place information and/or the second-in-place information, and only for an infusion pump 100 driven by a mechanical driving force, after the processor receives the first-in-place information and/or the second-in-place information, there is no step of controlling the electric driving mechanism 113 to drive the movable mechanism 122 from the fluid-stop operating position to the fluid-conducting operating position, and the first/second-in-place information cannot be used to trigger the switching of the operating positions.

Referring to fig. 4, fig. 5, and fig. 8 to fig. 10, in an embodiment, the liquid stopping clip driving module 120 further includes a second detecting element 125, and when the movable mechanism 122 is at the conducting operating position, the movable mechanism 122 triggers the second detecting element 125 to output conducting information. That is, by providing the second detection element 125, it is possible to determine whether the movable mechanism 122 is moved to the right position, and further, whether the infusion tube 300 is conducted.

For example, referring to fig. 4, fig. 5, and fig. 8 to fig. 10, in an embodiment, the second detecting element 125 is a second optical coupler, and the second optical coupler includes a second transmitting end 1251 and a second receiving end 1252 that are opposite and spaced apart from each other; the movable mechanism 122 is rotatably connected with the box body 121, the movable mechanism 122 includes an abutting part 1221 and a second trigger 1223 connected with the abutting part 1221, when the movable mechanism 122 is at the liquid stop working position, the abutting part 1221 abuts against the liquid stop clip 200, the second trigger 1223 is located at the interval between the second transmitting end 1251 and the second receiving end 1252, at this time, the second trigger 1223 cuts off the signal transmission path between the second transmitting end 1251 and the second receiving end 1252, and the second receiving end 1252 cannot receive the signal transmitted by the second transmitting end 1251; when the movable mechanism 122 is switched from the liquid-stop operating position to the conducting operating position by rotation, the second trigger 1223 moves out from the gap between the second transmitting terminal 1251 and the second receiving terminal 1252, the signal transmission path between the second transmitting terminal 1251 and the second receiving terminal 1252 is conducted, and the second receiving terminal 1252 receives the signal transmitted by the second transmitting terminal 1251, so that the second optical coupler can output the conducting information.

In some embodiments, it is also possible that when the movable mechanism 122 is in the liquid-stop operating position, the second triggering member 1223 is located outside the second optical coupler, and when the movable mechanism 122 is switched from the liquid-stop operating position to the conducting operating position by rotating, the second triggering member 1223 moves to the interval between the second emission end 1251 and the second receiving end 1252.

It is understood that the second detecting element 125 is not limited to being a second optical coupler, and in some embodiments, the second detecting element 125 may also be a hall sensor, a key switch, an optical proximity sensor, a pressure sensor, an ultrasonic sensor, or the like. In some embodiments, the second triggering member 1223 may also be an independent component separate from the movable mechanism 122, for example, the second triggering member 1223 may be movably disposed in the box 121, and when the movable mechanism 122 switches from the liquid-stop operating position to the conducting operating position, the movable mechanism 122 pushes the second triggering member 1223, so that the second triggering member 1223 triggers the second detecting element 125 to output the conducting information.

In some embodiments, the second triggering element 1223 may also trigger the second detecting element 125 to output the conduction information by way of a linear motion.

In one embodiment, the processor may be configured to receive the turn-on information and control the infusion pump 100 to enter an infusion phase, i.e., the processor may restart the infusion pump 100 after determining that the infusion tube 300 is already in the turn-on state, thereby improving the safety of use of the infusion pump 100.

It will be appreciated that the processor may receive the switch-on information whether the driving force for driving the movable mechanism 122 to switch from the liquid-stop operating position to the switch-on operating position is an electrical driving force or a mechanical driving force.

Referring to fig. 1 to 15, the infusion system includes a liquid stop clip 200, an infusion tube 300 and the infusion pump 100 of the above embodiment, wherein the liquid stop clip 200 is inserted into the infusion tube 300 and removably connected to the liquid stop clip driving module 120, that is, the liquid stop clip 200 and the liquid stop clip driving module 120 are separated from each other, and the liquid stop clip 200 can be used as a consumable part to be used with the infusion tube 300; for example, each infusion tube 300 can be respectively provided with a liquid stop clip 200 in a penetrating manner, after the infusion is completed, the liquid stop clip 200 can be discarded along with the infusion tube 300, and the liquid stop clip 200 can also be reused.

It is understood that the infusion pump 100 may have other structural forms, for example, in an embodiment, the infusion pump 100 may be used with the infusion tube 300 and a detachable liquid stopping member, and the detachable liquid stopping member may be the liquid stopping sheet clip 200 described in the above embodiment, or may have other structural forms, and it should be noted that, here, the detachable liquid stopping member mainly means that the detachable liquid stopping member may be detachably connected with the infusion pump 100, and the detachable liquid stopping member may be detachably connected with the infusion tube 300, or may be fixedly connected. Specifically, along the infusion tube installation position, the infusion pump 100 is provided with an infusion tube extrusion area, at least one pressure detection area and at least one bubble detection area, when the infusion tube 300 is loaded alone (no other liquid stopping structure is arranged on the infusion pump 100) in the infusion tube installation position, the sections of the infusion tube 300 located at the upstream or the downstream of the infusion tube extrusion area are both in a conducting state; when the infusion tube 300 and the detachable liquid stop member are combined and then loaded in the infusion tube installation position, (i.e. the infusion tube 300 and the detachable liquid stop member of the present embodiment are loaded in the infusion tube installation position, and the installation position is not separately provided for the detachable liquid stop member), the infusion pump 100 drives the detachable liquid stop member to perform form adjustment, wherein the form adjustment mainly refers to adjusting the form when the detachable liquid stop member is matched with the infusion tube 300, for example, the detachable liquid stop member is adjusted from a clamping form for clamping the infusion tube 300 to stop the liquid of the infusion tube 300 to an unclamping form for unclamping the infusion tube 300 to conduct the infusion tube 300, or the detachable liquid stop member is adjusted from the unclamping form to a clamping form, so that the section of the infusion tube 300 located at the upstream or downstream of the extrusion region of the infusion tube can realize the switching between the conducting state and the blocking state, that is, depending on the position where the detachable liquid stopper is mounted, the detachable liquid stopper can switch between the conduction state and the blocking state of the section of the infusion tube 300 located upstream of the squeezed region of the infusion tube, or switch between the conduction state and the blocking state of the section of the infusion tube 300 located downstream of the squeezed region of the infusion tube.

The removable liquid-stopping component can be driven by the electric driving mechanism 113 to perform form adjustment, for example, the electric driving mechanism 113 can drive the movable component of the infusion pump 100 according to a control command to perform form adjustment on the removable liquid-stopping component, and the removable liquid-stopping component can also perform form adjustment under the action of a mechanical driving force, for example, by means of opening and closing the pump door 130.

In one embodiment, when the detachable liquid-stopping component is loaded in the infusion tube installation position, the detachable liquid-stopping component and the movable component are overlapped in the vertical direction, that is, the movable component can perform shape adjustment on the detachable liquid-stopping component in the vertical direction.

In one embodiment, when the infusion tube 300 carried by the detachable liquid stopping component is loaded into the infusion tube installation position, the infusion pump 100 drives the detachable liquid stopping component to be in a liquid stopping state, the section of the infusion tube 300 located at the upstream or downstream of the extrusion area of the infusion tube is in a cut-off state, and the section of the infusion tube 300 located in the extrusion area of the infusion tube is in a conducting state; when the pump door 130 is closed, the pump door 130 and the pump body of the pump main body 110 jointly extrude the infusion tube 300, so that the section of the infusion tube 300 located in the extrusion area of the infusion tube is in a cut-off state, and the detachable liquid stopping part is driven to be switched to a conducting position at any time point in the closing process of the pump door 130, so that the section of the infusion tube 300 located at the upstream or downstream of the extrusion area of the infusion tube is in a conducting state; when the pump door 130 is triggered to be opened, the detachable liquid stopping component is switched to the liquid stopping position, so that the section of the infusion tube 300 located at the upstream or downstream of the extrusion area of the infusion tube is in a cut-off state, and then the pump door 130 is opened, so that the section of the infusion tube 300 located in the extrusion area of the infusion tube is restored to a conduction state. That is, only when the pump door 130 is in the closed state, the section of the infusion tube 300 located upstream or downstream of the pinched region of the infusion tube can be conducted, and when the pump door 130 is in the open state, the section of the infusion tube 300 located upstream or downstream of the pinched region of the infusion tube is kept in the blocked state, whereby the liquid stopping effect can be improved.

In one embodiment, the detachable liquid stop further comprises a locking mechanism, and the pump door 130 is provided with an unlocking mechanism, and when the pump door 130 is closed, the unlocking mechanism triggers the locking mechanism to unlock. That is to say, before the pump door 130 is closed, the detachable liquid-stopping component is in a locked state, the infusion tube 300 is clamped by the detachable liquid-stopping component, at this time, the movable component 122 of the infusion pump 100 cannot drive the detachable liquid-stopping component to loosen the infusion tube 300, after the pump door 130 is closed, the unlocking mechanism triggers the locking mechanism to unlock, and the unlocked detachable liquid-stopping component can clamp or loosen the infusion tube 300 under the drive of the movable component 122.

Referring to fig. 1, 2, and 13 to 15, in an embodiment, the locking mechanism may be a combination structure of the first latch 240 and the second latch 250 shown in fig. 13 to 15, and the unlocking mechanism may be the second pushing member 130a shown in fig. 2, and in other embodiments, the locking mechanism and the unlocking mechanism may be in other structural forms as long as the unlocking mechanism can trigger the locking mechanism to unlock after the pump door 130 is ensured to be closed.

In one embodiment, referring to fig. 1, the infusion pump 100 has a separate liquid stopping component, the separate liquid stopping component 140 includes a liquid stopping fixed end 141 and a liquid stopping movable end 142, the liquid stopping fixed end 141 is disposed on the pump body 110, the liquid stopping movable end 142 is disposed on the infusion tube 300, the separate liquid stopping component 140 may be the liquid stopping sheet clamp 200 described in the above embodiment, or may be in other structural forms, the liquid stopping fixed end 141 may be the liquid stopping sheet clamp driving module 120 described in the above embodiment, or may be in other structural forms, before the infusion is started, the liquid stopping movable end 142 and the liquid stopping fixed end 141 are correctly combined together, and the liquid stopping movable end 142 maintains a clamped state, so as to cut off the liquid path in the infusion tube 300; when the infusion is started, the liquid stopping fixed end 141 drives the liquid stopping movable end 142 to switch the loose state so as to conduct the liquid circulation path in the infusion tube 300; when the infusion is completed, the pump door opening command is received, or the opening of the pump door 130 is detected, the liquid stopping fixed end 141 drives the liquid stopping movable end 142 to switch to the clamping state, and the liquid flow path in the infusion tube 300 is cut off again.

The position of the movable member 122 of the liquid stop fixed end 141 can be adjusted by the electric driving mechanism 113, or can be adjusted by a mechanical driving force.

In one embodiment, referring to fig. 5 and 8, the liquid-stopping fixed end 141 is provided with a plug-in groove 121e, the plug-in groove 121e is used for accommodating the liquid-stopping movable end 142, and the movable part 122 of the liquid-stopping fixed end 141 and the liquid-stopping movable end 142 are overlapped in the vertical direction. That is, the liquid stopping movable end 142 can clamp or release the infusion tube 300 in the vertical direction, thereby facilitating the movable part 122 of the liquid stopping fixed end 141 to control the liquid stopping movable end 142.

The embodiment of the present application further provides a control method of an infusion pump 100, which is applied to the infusion pump 100, please refer to fig. 1 to 15, the infusion pump 100 is used for cooperating with a liquid stop sheet clamp 200 inserted in an infusion tube 300, the infusion pump 100 further includes a pump main body 110, a pump door 130 and a liquid stop sheet clamp driving module 120, the pump main body 110 includes a face frame 111, a pump sheet and a pump body, the face frame 111 has a liquid stop sheet clamp installation position and an infusion tube installation position; the pump door 130 is movably connected with the pump main body 110 so as to selectively avoid or shield the installation position of the liquid stopping sheet clamp and the installation position of the infusion tube; the liquid stop sheet clamp driving module 120 comprises a movable mechanism 122, when the liquid stop sheet clamp 200 is loaded on the liquid stop sheet clamp mounting position, the liquid stop sheet clamp 200 is abutted against the movable mechanism 122; referring to fig. 16, the method includes:

step 401: determining that the liquid stopping sheet clamp 200 is loaded in place on the liquid stopping sheet clamp installation position, wherein when the liquid stopping sheet clamp 200 is loaded in place, the liquid stopping sheet clamp 200 is abutted against the movable mechanism 122 at the liquid stopping working position;

that is, the infusion tube 300 is in the liquid stop state at this time.

Step 402: determining that the pump door 130 is closed, wherein the pump door 130 and the pump sheet jointly press the infusion tube 300 when the pump door 130 is in a closed state;

the steps 401 and 402 are not in sequence, and any one of the steps 401 and 402 may be executed first, the other one is executed later, or may be executed synchronously.

Step 403: the movable mechanism 122 is driven to move from the liquid stopping working position to the conducting working position, so that the liquid stopping sheet clamp 200 releases the infusion tube 300;

that is, the movable mechanism 122 can move from the liquid-stop operating position to the conducting operating position after the pump door 130 is closed.

Step 404: receiving and driving the pump sheet to extrude the infusion tube 300 in a creeping manner according to an infusion starting instruction so as to enable the liquid in the infusion tube 300 to move directionally;

that is, the infusion pump 100 at this time can perform normal infusion.

Step 405: receiving and according to the opening instruction of the pump door 130 or detecting that the pump door is opened, driving the movable mechanism 122 to move from the conduction working position to the liquid stopping working position so as to close the liquid stopping sheet clamp 200 and clamp the infusion tube 300;

that is, after the pump door 130 is opened, the movable mechanism 122 needs to be moved to the liquid stop operation position to stop the infusion tube 300.

Step 406: the locking mechanism that actuates the pump door 130 moves from a closed door position to an open door position to allow the pump door 130 to open.

The driving force for driving the locking mechanism of the pump door 130 from the door-closing position to the door-opening position may be an electric driving force or a mechanical driving force, for example, the pump door 130 can be opened by a user's hand.

That is, when the pump door 130 is in the closed state, the movable mechanism 122 can move from the liquid stop operating position to the conducting operating position to conduct the infusion tube 300, and when the pump door 130 is in the open state, the movable mechanism 122 can be kept at the liquid stop operating position to keep the infusion tube 300 in the liquid stop state, so that the liquid stop can be facilitated, and the situation that the user does not close the liquid stop sheet clamp 200 in time or forgets to close the liquid stop sheet clamp 200 can be avoided.

It should be noted that the control method is mainly directed to the infusion pump 100 driven by the electric driving mechanism 113, and the related control can be implemented by a processor.

In one embodiment, after determining that the pump door 130 is closed and before driving the movable mechanism 122 to move from the liquid-stop operating position to the conducting operating position, the method further includes:

the pump sheet is controlled to extrude the infusion tube 300 in a creeping manner;

detecting a pressure change in the infusion tube 300;

if the pressure change of the infusion tube 300 is determined to meet the preset condition, the movable mechanism 122 is driven to move from the liquid-stopping working position to the conducting working position;

and if the pressure change of the infusion tube 300 is determined not to meet the preset condition, alarm information is output.

Specifically, the pump sheet can be driven to firstly extrude the infusion tube in the infusion direction (the pump sheet rotates forwards) and then extrude the infusion tube in the opposite infusion direction (the pump sheet rotates backwards), and the method can prevent the generation of pills after the liquid stopping clamp is loosened; in this process, the pressure change of the infusion tube is detected by a pressure sensor arranged between the squeezing area of the infusion tube and the liquid stop clip. In the case that the infusion tube is not broken and leakage occurs, the pressure of the infusion tube in the section rises to a preset first pressure threshold value along with the rotation of the pump plate and then gradually falls along with the rotation of the pump plate. If the infusion tube is broken and leaks, the pressure in the infusion tube in the section cannot rise to the preset first pressure threshold with the positive rotation of the pump sheet. So that it can be determined whether the infusion tube is leaking or not according to the pressure change of the infusion tube in the section. In the other method, the pump sheet can be driven to firstly extrude the infusion tube in the opposite infusion direction (pump sheet is reversely rotated) and then extrude the infusion tube in the infusion direction (pump sheet is positively rotated), so that the liquid stop sheet clamp can be prevented from being conducted to cause the blood of the patient to be pumped back; during this process, if the infusion tube leaks without rupture, the pressure in the infusion tube in this section will drop to a preset second pressure threshold as the pump plate rotates backward, and then gradually rise as the pump plate rotates forward. If the infusion tube is ruptured and leaks, the pressure in the infusion tube in the section cannot drop to the preset second pressure threshold value along with the reversal of the pump sheet. By detecting leakage in the infusion tube 300, the safety of use of the infusion pump 100 can be improved.

In one embodiment, after the pump door 130 is determined to be closed and before the movable mechanism 122 is driven to move from the liquid stop operation position to the conduction operation position, the liquid stop clip 200 clips the infusion tube 300 by the abutment of the movable mechanism 122, so as to cut off the liquid flow path in the infusion tube 300. That is, as long as the movable mechanism 122 is in the liquid stop operation position, the liquid stop clip 200 can always clip the infusion tube 300 so as to keep the infusion tube 300 in the liquid stop state.

In one embodiment, the infusion pump 100 further comprises a fluid stop clip state sensor for determining whether the fluid stop clip 200 is in a clamped state for stopping the fluid in the infusion tube 300 or in a released state for conducting the infusion tube 300, and the method further comprises:

determining the state of the liquid stopping sheet clamp 200;

if the state of the liquid stopping clip 200 is determined to be inconsistent with the preset state of the liquid stopping clip in the current stage, alarm information is output; wherein, the preset liquid stopping sheet clamp state has a plurality of, corresponds with different infusion stages respectively.

In the clamping state, the liquid stopping sheet clamp 200 is closed to clamp the infusion tube 300 so as to stop the infusion tube 300, in the loosening state, the liquid stopping sheet clamp 200 loosens the infusion tube 300 so as to enable the infusion tube 300 to be conducted, different infusion stages can comprise a preparation stage before infusion starting, a tube taking stage for taking down the infusion tube 300 after the infusion is started and completed is adopted, in the preparation stage and the tube taking stage, the preset liquid stopping sheet clamp state is the clamping state, if the liquid stopping sheet clamp state is detected to be the loosening state at the moment, alarm information is output, in the infusion starting stage, the preset liquid stopping sheet clamp state is the loosening state, if the liquid stopping sheet clamp state is detected to be the clamping state at the moment, the alarm information is also output. Thus, the infusion pump 100 can check the state of the liquid stop sheet holder 200 or the liquid stop sheet holder driving module 120 by the signal of the sensor, and the safety of the use of the infusion tube 300 can be improved.

In one embodiment, if the state of the liquid stopping clip 200 is determined not to be in accordance with the current working position of the movable mechanism 122, alarm information is output; wherein the current working position of the movable mechanism 122 includes a conducting working position or a liquid-stopping working position. That is, the liquid stop clip sensor may be the second detecting element 125 described above, or may be another detecting element, and may indirectly detect the state of the liquid stop clip 200 by detecting the current operating position of the movable mechanism 122.

In one embodiment, the infusion pump 100 further comprises an infusion tube in-place sensor for determining whether the infusion tube 100 is loaded in the infusion tube mounting location; after determining that the pump door 130 is closed and before driving the movable mechanism 122 to move from the liquid-stop operating position to the conducting operating position, the method further includes:

determining whether the infusion tube 100 is loaded in the infusion tube mounting location;

if the infusion tube 100 is loaded in the infusion tube mounting position, the movable mechanism 122 is driven to move from the liquid stop working position to the conduction working position;

if the infusion tube 100 is not mounted in the infusion tube mounting position, alarm information is output.

The infusion tube in-place sensor can be the three detection elements or other detection elements.

When the infusion pump 100 adopts the above-described method of checking the state of the liquid stopping sheet holder 200 and the above-described method of checking whether the infusion tube 100 is loaded at the infusion tube mounting position, it is equivalent to further checking the states of the liquid stopping sheet holder 200, the liquid stopping sheet holder driving module 120 and the infusion tube 100, and thus, the safety of the use of the infusion tube 300 can be greatly improved

The various embodiments/implementations provided herein may be combined with each other without contradiction. The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. The utility model provides an infusion pump for use with wearing to establish the liquid-stopping piece clamp cooperation on the transfer line, its characterized in that includes:

the pump door is movably connected with the pump main body;

2. The infusion pump according to claim 1, wherein said movable mechanism rotates or moves linearly with respect to said face frame during switching between said conducting operating position and said liquid-stopping operating position.

3. The infusion pump according to claim 1,

the pump main body further comprises an electric driving mechanism, and the electric driving mechanism is used for providing electric driving force to drive the movable mechanism to be switched from the liquid stopping working position to the conducting working position or drive the movable mechanism to be switched from the conducting working position to the liquid stopping working position; or,

the liquid stopping sheet clamp driving module further comprises an elastic piece, wherein the elastic piece is used for providing elastic force so as to drive the movable mechanism to be switched from the liquid stopping working position to the conducting working position or drive the movable mechanism to be switched from the conducting working position to the liquid stopping working position; or,

the liquid stopping sheet clamp driving module further comprises an elastic piece and an electric driving mechanism, and the electric driving mechanism is used for providing electric driving force to drive the movable mechanism to be switched from the liquid stopping working position to the conducting working position; the elastic piece is used for providing elastic force to drive the movable mechanism to be switched from the conduction working position to the liquid stopping working position; or,

the liquid stopping sheet clamp driving module further comprises an elastic piece and an electric driving mechanism, wherein the electric driving mechanism is used for providing electric driving force so as to drive the movable mechanism to be switched from a conducting working position to a liquid stopping working position; the elastic piece is used for providing elastic force to drive the movable mechanism to be switched from the liquid stopping working position to the conducting working position.

4. The infusion pump according to claim 1, wherein when said liquid stopping sheet holder is mounted on said liquid stopping sheet holder mounting position and said pump door is closed, said movable mechanism is in said liquid stopping operation position, and said liquid stopping sheet holder abuts against said movable mechanism in said liquid stopping operation position, so that said liquid stopping sheet holds said infusion tube to block a liquid flow path in said infusion tube.

5. The infusion pump according to claim 4, wherein when said movable mechanism is in said ON position and said door is triggered, said movable mechanism is actuated from said ON position to said OFF position such that said stop clip is closed to clamp said infusion tube to block the fluid flow path through said infusion tube.

6. The infusion pump according to claim 1, wherein the liquid stop clip comprises a first clip arm, a second clip arm, a first clip member and a second clip member, the first clip arm and the second clip arm are connected to each other, the first clip member is disposed on the first clip arm, and the second clip member is disposed on the second clip arm;

the pump door comprises a second pushing piece, when the liquid stopping sheet clamp is loaded on the liquid stopping sheet clamp installation position, the liquid stopping sheet clamp is abutted against the movable mechanism at the liquid stopping working position, the first clamping piece is clamped and matched with the second clamping piece, and when the pump door is closed, the second pushing piece pushes at least one of the first clamping piece or the second clamping piece so as to separate the first clamping piece from the second clamping piece; under the state of first joint spare with the separation of second joint spare, and work as the movable mechanism is under the drive power effect from end liquid station switches over to switch on the station, end the liquid piece clamp unclamp the transfer line, in order to switch on the liquid circulation route in the transfer line.

7. The infusion pump according to claim 6, wherein when said movable mechanism is switched from said conduction operation position to said liquid stop operation position by a driving force, said liquid stop clip is closed to clip said infusion tube to block a liquid flow path in said infusion tube, and when said pump door is opened and said second pushing member is disengaged from said liquid stop clip, said first engaging member and said second engaging member are returned to an engaged state by their own elastic force.

8. The utility model provides an infusion pump for use with wearing to establish the liquid-stopping piece clamp cooperation on the transfer line, its characterized in that includes:

the pump door is movably connected with the pump main body;

9. The infusion pump according to claim 8, wherein said pump body further comprises a guide member, said liquid stopping clip driving module further comprises an elastic member disposed in said case, one end of said elastic member is connected to said moving mechanism, the other end of said elastic member is connected to said case, said guide member is located outside said case; the electric driving mechanism comprises a driving motor and a transmission element in driving connection with the driving motor;

the liquid stopping sheet clamp is loaded on the liquid stopping sheet clamp mounting position, the pump door is closed, and the elastic piece is in a first compression state;

the electric driving mechanism drives the guide piece to move linearly towards the first direction, the movable mechanism is pushed by the pushing force of the guide piece to rotate along the first time hand direction until the movable mechanism is in the conducting working position, the movable mechanism presses the elastic piece until the elastic piece is in a second compression state in the process of rotating along the first time hand direction, and the compression amount of the elastic piece in the first compression state is smaller than that in the second compression state;

the electric driving mechanism drives the guide piece to linearly move towards the second direction, and in the process that the guide piece moves towards the second direction, the movable mechanism is pushed by the elastic piece to rotate in a second clockwise direction opposite to the first clockwise direction until the liquid stopping working position is reached.

10. The infusion pump according to claim 8, wherein said liquid stop clip driving module comprises a first detecting element and a first trigger movably disposed in said case, when said liquid stop clip is loaded on said liquid stop clip mounting position, said liquid stop clip pushes said first trigger so that said first trigger triggers said first detecting element to output a first in-position information; and/or the presence of a gas in the gas,

the liquid stopping sheet clamp driving module comprises a second detection element, and when the movable mechanism is located at the conduction working position, the movable mechanism triggers the second detection element to output conduction information.

11. The infusion pump of claim 10, wherein said first sensing element is a first optical coupler comprising a first emitting end and a first receiving end in opposing spaced apart relation;

the first trigger part is rotatably connected with the box body and comprises a first trigger part and a butting part connected with the first trigger part, and when the first trigger part is in an initial state, the first trigger part is positioned at the interval between the first transmitting end and the first receiving end;

when the liquid stopping sheet clamp is loaded on the liquid stopping sheet clamp mounting position, the liquid stopping sheet clamp applies thrust to the abutting portion, so that the first trigger piece drives the first trigger portion to move out of the interval between the first emitting end and the first receiving end through rotation.

12. The infusion pump of claim 10, wherein said second sensing element is a second optical coupler comprising a second emitting end and a second receiving end in opposing spaced apart relation;

the movable mechanism comprises an abutting part and a second trigger part connected with the abutting part, when the liquid stopping sheet clamp is loaded on the liquid stopping sheet clamp mounting position, the abutting part abuts against the liquid stopping sheet clamp, and the second trigger part is positioned at the interval between the second transmitting end and the second receiving end;

when the movable mechanism is switched from the liquid stopping working position to the conducting working position through rotation, the second trigger piece moves out of the interval between the second transmitting end and the second receiving end.

13. The utility model provides an infusion pump for use with wearing to establish the liquid-stopping piece clamp cooperation on the transfer line, its characterized in that includes:

the pump door is rotatably connected with the pump main body;

14. An infusion pump is used for being matched with an infusion tube and a detachable liquid stopping component for use and is characterized in that,

the device comprises a pump main body and a pump door which are movably connected, wherein a transfusion pipe installation position is arranged on one side of the pump main body, and a transfusion pipe extrusion area, at least one pressure detection area and at least one bubble detection area are arranged along the transfusion pipe installation position;

15. The infusion pump of claim 14, wherein said pump body further comprises an electrical drive mechanism; after the pump door is closed, the electric drive mechanism can drive the movable part of the infusion pump to carry out shape adjustment on the detachable liquid stopping part according to a control instruction, so that the section of the infusion tube, which is located at the upstream or the downstream of the extrusion area of the infusion tube, can realize switching between a conduction state and a cut-off state.

16. The infusion pump according to claim 15, wherein said removable liquid stop member is vertically overlapped with said movable member when said removable liquid stop member is loaded in said infusion tube mounting position.

17. An infusion pump is characterized by comprising a pump main body and a pump door which are movably connected, wherein an infusion tube installation position is arranged on one side of the pump main body, an infusion tube extrusion area, at least one pressure detection area and at least one bubble detection area are arranged along the infusion tube installation position, the infusion pump further comprises a separated liquid stopping component, the separated liquid stopping component comprises a liquid stopping fixed end and a liquid stopping movable end which are matched with each other, the liquid stopping fixed end is arranged on the pump main body, and the liquid stopping movable end is arranged on the infusion tube;

18. The infusion pump according to claim 17, wherein said liquid stopping fixed end is provided with a slot for receiving said liquid stopping movable end, and said movable part of said liquid stopping fixed end and said liquid stopping movable end are overlapped in a direction perpendicular to the direction of the infusion tube.

19. The infusion pump of claim 17, wherein said pump body further comprises an electrical drive mechanism for adjusting the position of said movable member of said liquid stop fixed end to thereby move said liquid stop movable end between a clamping state and a release state.

20. An infusion pump is characterized by comprising a pump main body and a pump door which are movably connected, wherein the pump main body is provided with an infusion tube mounting position, and an infusion tube extrusion area, at least one pressure detection area and at least one bubble detection area are arranged along the infusion tube mounting position;

21. The infusion pump of claim 20, wherein said removable fluid stop further comprises a locking mechanism, and said pump door is provided with an unlocking mechanism, said unlocking mechanism triggering said locking mechanism to unlock when said pump door is closed.