CN112827054A - Intubation propulsion device suitable for large blood vessel operation - Google Patents
Intubation propulsion device suitable for large blood vessel operation Download PDFInfo
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- CN112827054A CN112827054A CN202110019343.2A CN202110019343A CN112827054A CN 112827054 A CN112827054 A CN 112827054A CN 202110019343 A CN202110019343 A CN 202110019343A CN 112827054 A CN112827054 A CN 112827054A
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- 238000002627 tracheal intubation Methods 0.000 title abstract description 10
- 210000004204 blood vessel Anatomy 0.000 title description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000001356 surgical procedure Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000002837 heart atrium Anatomy 0.000 description 2
- 210000005246 left atrium Anatomy 0.000 description 2
- 210000005240 left ventricle Anatomy 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000005245 right atrium Anatomy 0.000 description 2
- 206010007559 Cardiac failure congestive Diseases 0.000 description 1
- 208000004196 Heart Aneurysm Diseases 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010054805 Macroangiopathy Diseases 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 241000251539 Vertebrata <Metazoa> Species 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000001370 mediastinum Anatomy 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000005241 right ventricle Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002966 stenotic effect Effects 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides an intubation propulsion device suitable for a great vessel operation, and relates to the technical field of medical equipment. A cannula pushing device suitable for a great vessel operation comprises an outer shell with a hollow interior, wherein a first opening and a second opening which are oppositely arranged are formed in the side wall of the outer shell, and a pressing assembly and a pushing assembly are arranged in the outer shell; the pushing assembly is arranged above the pushing assembly, the pushing assembly comprises an annular pushing belt and a driving assembly for driving the pushing belt to rotate, the driving assembly is arranged on the outer shell, and the pushing belt is in transmission connection with the driving assembly; the top of the push belt is horizontally arranged and is positioned below the pressing component. By adopting the invention, the catheter can be conveniently and stably pushed into the human body, and the operation risk is reduced.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to an intubation pushing device suitable for a large blood vessel operation.
Background
The heart is one of the vertebrate organs. Is the power in the circulation system. The human heart is substantially the same size as a human fist, and is shaped like a peach with the apex of the heart biased to the left. Located above the diaphragm and between the mediastinums, in the middle of the chest, on the lower left side, and between the two lungs, on the left side. Mainly comprises cardiac muscle, and has four cavities, namely a left atrium, a left ventricle, a right atrium and a right ventricle. The left atrium and the right atrium and the left ventricle are separated by intervals and are not communicated with each other, and valves (atrioventricular valves) are arranged between the atria and the ventricles, so that blood can only flow into the ventricles from the atria but can not flow backwards. The heart is located in the chest cavity, between the upper two lungs of the diaphragm, approximately two thirds to the left of the midline. The heart fundus is wide, and large blood vessels enter and exit from it, and face upward and rightward, and are adjacent to posterior medially-spaced organs such as the esophagus.
The heart is mainly connected with large blood vessels, which are the collective term for the aorta and the great veins. From the appearance, the large blood vessel has large caliber and thick caliber; functionally, the function of the great vessels is also great, from which the blood supply of all the tissues and organs of the human body comes. Stenotic and dilated macrovascular disease, mainly manifested by hypertension and congestive heart failure and aneurysms, may also present with a number of complications.
In cardiac or large vessel surgery, it is often necessary to insert a surgical catheter into the body, and these cannula procedures rely entirely on the medical staff holding the cannula and inserting it into the surgical incision. The manual operation has high requirements on operators, and the stability and accuracy of the handheld cannula are difficult to master. It is very difficult for an inexperienced physician to accurately and stably move the arm during the operation.
Disclosure of Invention
The invention aims to provide an intubation pushing device suitable for a large vessel operation, which is convenient for slowly and stably pushing a catheter into a human body and reduces operation risks.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides an intubation pushing device suitable for a great vessel operation, which comprises an outer shell with a hollow interior, wherein a first opening and a second opening which are oppositely arranged are formed in the side wall of the outer shell; the pushing assembly is arranged above the pushing assembly, the pushing assembly comprises an annular pushing belt and a driving assembly for driving the pushing belt to rotate, the driving assembly is arranged on the outer shell, and the pushing belt is in transmission connection with the driving assembly; the top of the push belt is horizontally arranged and is positioned below the pressing component.
Further, in some embodiments of the present invention, the driving assembly includes a driving motor disposed in the outer housing, a driving roller in transmission connection with the driving motor, and a driven roller, and both the driving roller and the driven roller are rotatably disposed in the outer housing; the push belt is wound around the drive roller and the driven roller, respectively.
Further, in some embodiments of the present invention, a first rack is circumferentially disposed on an outer side wall of the driving roller, a second rack engaged with the first rack is disposed on an inner side wall of the push belt, and the first rack is engaged with the second rack; the transmission shaft of the driving motor is provided with a gear, and the gear is meshed with the first rack.
Further, in some embodiments of the present invention, the outer casing is further provided with a processor, an input module, and a storage battery, the driving motor adopts a stepping motor, and the input module, the storage battery, and the driving motor are all electrically connected to the processor; the input module is used for inputting the moving length information of the catheter into the processor; the processor is used for receiving the moving length information and sending a rotating signal to the driving motor; the driving motor is used for receiving the rotation signal and driving the driving roller to rotate.
Further, in some embodiments of the present invention, a first receiving groove is formed on an upper sidewall of the push belt along a length direction, and a cross section of the first receiving groove is arc-shaped.
Further, in some embodiments of the present invention, the pressing assembly includes a vertically disposed screw rod, an adjusting sleeve, a horizontally disposed connecting rod, and a plurality of pressing wheels rotatably disposed at the bottom of the connecting rod, one end of the adjusting sleeve is disposed on the connecting rod, and an inner side wall of the adjusting sleeve is provided with an inner thread engaged with the screw rod; one end of the screw rod is rotatably arranged on the outer shell, and the other end of the screw rod is arranged in the adjusting sleeve and is in threaded connection with the adjusting sleeve.
Further, in some embodiments of the present invention, the outer housing is provided with a vertical guide rod, the connecting rod is provided with a vertical guide cylinder, and one end of the guide rod is slidably disposed on the guide cylinder; and a knob is arranged at one end of the screw rod, which is far away from the adjusting sleeve, and the knob is arranged outside the outer shell.
Further, in some embodiments of the present invention, the outer casing includes an upper casing and a lower casing which are detachably connected, the first opening, the second opening and the pressing component are disposed on the upper casing, and the pushing component is disposed on the lower casing; the upper shell is provided with a connecting block, the lower shell is provided with a connecting hole matched with the connecting block, and the connecting block is arranged in the connecting hole in a sliding mode and can slide out of the connecting hole; the lower shell is movably provided with a limiting assembly used for limiting the connecting block to slide out of the connecting hole, and the limiting assembly is detachably connected with the connecting block.
Further, in some embodiments of the present invention, the limiting assembly includes a shifting block and a plug pin connected to the shifting block, the lower housing has a sliding hole communicated with the connecting hole, and the plug pin is slidably disposed in the sliding hole; the connecting block is provided with a clamping hole matched with the bolt, and one end of the bolt can slide into the clamping hole.
Further, in some embodiments of the present invention, an elastic member is disposed between the dial block and the lower housing, one end of the elastic member is fixed to the lower housing, and the other end of the elastic member is fixed to the dial block.
Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:
the embodiment of the invention provides an intubation pushing device suitable for a great vessel operation, which comprises an outer shell with a hollow interior, wherein the side wall of the outer shell is provided with a first opening and a second opening which are oppositely arranged, and a pressing assembly and a pushing assembly are arranged in the outer shell; the pushing assembly is arranged above the pushing assembly, the pushing assembly comprises an annular pushing belt and a driving assembly for driving the pushing belt to rotate, the driving assembly is arranged on the outer shell, and the pushing belt is in transmission connection with the driving assembly; the top of the push belt is horizontally arranged and is positioned below the pressing component.
In actual use, one end of the catheter is inserted through the first opening and between the pressing component and the push belt, and then is inserted through the second opening and into the human body, so that the catheter is clamped between the pressing component and the push belt. When the catheter needs to be pushed to move in a human body, the driving assembly drives the pushing belt to rotate, and under the action of friction force between the catheter and the pushing belt, the rotating pushing belt drives the catheter to slowly move, so that the catheter is slowly and stably pushed into the human body, and the operation risk is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a partial cross-sectional view of the interior of an intubation pusher provided in accordance with an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the connection of the pinch roller, the catheter and the push belt according to an embodiment of the present invention;
fig. 3 is a schematic view of an installation structure of an upper housing and a lower housing according to an embodiment of the present invention;
FIG. 4 is a partial cross-sectional view of a latch position provided by an embodiment of the present invention.
Icon: 1-a first opening; 2-a second opening; 3-a push belt; 4-driving the motor; 5-a drive roller; 6-driven rollers; 7-a first accommodating groove; 8-a second holding tank; 9-a pressing wheel; 10-a connecting rod; 11-a screw; 12-an adjustment sleeve; 13-a guide bar; 14-a guide cylinder; 15-a knob; 16-an upper shell; 17-a lower housing; 18-connecting blocks; 19-connecting holes; 20-a shifting block; 21-a latch; 22-a clamping hole; 23-an elastic member; 24-a catheter; 25-a touch screen; 26-handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1 to 4, the present embodiment provides an intubation pushing device suitable for a great vessel operation, including an outer casing with a hollow interior, a first opening 1 and a second opening 2 oppositely disposed on a side wall of the outer casing, and a pressing component and a pushing component disposed inside the outer casing; the pressing assembly is arranged above the pushing assembly, the pushing assembly comprises an annular pushing belt 3 and a driving assembly for driving the pushing belt 3 to rotate, the driving assembly is arranged on the outer shell, and the pushing belt 3 is in transmission connection with the driving assembly; the top of the push belt 3 is horizontally arranged and positioned below the pressing component.
In practice, one end of the catheter 24 is passed through the first opening 1 and between the pressing assembly and the push belt 3, and then out of the second opening 2 and into the body, clamping the catheter 24 between the pressing assembly and the push belt 3. When the catheter 24 needs to be pushed to move in a human body, the driving assembly drives the push belt 3 to rotate, and under the action of friction force between the catheter 24 and the push belt 3, the rotating push belt 3 drives the catheter 24 to slowly move, so that the catheter 24 is slowly and stably pushed into the human body, and the operation risk is reduced.
Optionally, the push belt 3 of this embodiment is made of a rubber material, which has a large friction force, so that the catheter 24 is driven by the push belt 3 to move slowly. The outer housing of this embodiment may be provided with a handle 26 to facilitate handling by hand grasping the handle 26.
As shown in fig. 1-4, in some embodiments of the present invention, the driving assembly includes a driving motor 4 disposed in the outer housing, a driving roller 5 in transmission connection with the driving motor 4, and a driven roller 6, wherein the driving roller 5 and the driven roller 6 are both rotatably disposed in the outer housing; the push belt 3 is wound around the drive roller 5 and the driven roller 6, respectively.
The invention sets a driving motor 4, a driving roller 5 and a driven roller 6, wherein the driving roller 5 and the driven roller 6 are both arranged on the outer shell in a rotating way; so propelling movement belt 3 twines respectively behind above-mentioned drive roller 5 and above-mentioned driven roller 6, and propelling movement belt 3 upper surface forms a horizontal plane, and pipe 24 is placed behind propelling movement belt 3 upper surface, and is big with propelling movement belt 3 area of contact, is convenient for drive roller 5 through driving motor 4 and rotates, and then drives propelling movement belt 3 through drive roller 5 and rotate, and then drives pipe 24 through propelling movement belt 3 and remove.
As shown in fig. 1 to 4, in some embodiments of the present invention, a first rack is circumferentially disposed on an outer side wall of the driving roller 5, a second rack engaged with the first rack is disposed on an inner side wall of the push belt 3, and the first rack is engaged with the second rack; the transmission shaft of the driving motor 4 is provided with a gear, and the gear is engaged with the first rack.
According to the invention, the first rack is arranged on the outer side wall of the driving roller 5 in the circumferential direction, the second rack matched with the first rack is arranged on the inner side wall of the push belt 3, and the first rack is meshed with the second rack, so that the push belt 3 is driven to rotate by the driving roller 5, and the push belt 3 is prevented from slipping relative to the driving roller 5. According to the invention, the gear is arranged on the transmission shaft of the driving motor 4 and is meshed with the first rack, so that the driving motor 4 is convenient to drive the gear to rotate, and further the first rack is driven to move so as to drive the push belt 3 to rotate.
As shown in fig. 1-4, in some embodiments of the present invention, the outer casing is further provided with a processor, an input module, and a storage battery, the driving motor 4 is a stepping motor, and the input module, the storage battery, and the driving motor 4 are all electrically connected to the processor; the input module is used for inputting the information of the moving length of the catheter 24 into the processor; the processor is used for receiving the moving length information and sending a rotating signal to the driving motor 4; the driving motor 4 is used for receiving the rotation signal and driving the driving roller 5 to rotate.
According to the invention, the processor, the input module and the storage battery are arranged, the driving motor 4 adopts the stepping motor, so that the rotation angle of the driving motor 4 can be conveniently adjusted, the moving distance of the push belt 3 can be further adjusted, the moving distance of the catheter 24 can be conveniently and accurately controlled, the precision of the catheter 24 moving into a human body is improved, and the operation risk is further reduced.
The specific operation principle is as follows: for example, the distance required to move the guide tube 24 is 1cm, the information of the movement length of the guide tube 24 is 1cm through the input module, and the processor sends a rotation signal to the driving motor 4 after receiving the information to control the angular displacement of the stepping motor (the specific data of the angular displacement of the stepping motor needs to be determined according to the actual gear transmission ratio), so as to control the movement distance of the push belt 3.
Optionally, the input module of this embodiment may adopt a touch screen 25, the touch screen 25 is disposed on an outer side wall of the outer casing, and the input module may also adopt a plurality of buttons to input data. The processor of the present embodiment may employ an AT89S51 chip. The AT89S51 is a low-power-consumption and high-performance CMOS8 bit processor, and a universal 8 bit central processing unit and an ISP Flash storage unit are integrated in a chip, so that received information can be timely and effectively processed. It should be noted that the processor may be an integrated circuit chip having signal processing capability. The processor may be a general purpose processor including a central processing unit, a network processor, etc.; but may also be a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components. And is not limited to the AT89S51 chip in this embodiment.
As shown in fig. 1 to 4, in some embodiments of the present invention, a first receiving groove 7 is formed on an upper sidewall of the push belt 3 along a length direction, and a cross-section of the first receiving groove 7 is arc-shaped.
According to the invention, the first accommodating groove 7 is arranged, and the cross section of the first accommodating groove 7 is arc-shaped, so that when the guide pipe 24 is clamped between the push belt 3 and the pressing component, a part of the bottom of the guide pipe 24 can be embedded into the first accommodating groove 7, thus the contact area between the guide pipe 24 and the push belt 3 is increased, and the guide pipe 24 is conveniently driven by the push belt 3 to move.
As shown in fig. 1-4, in some embodiments of the present invention, the pressing assembly includes a vertically disposed screw 11, an adjusting sleeve 12, a horizontally disposed connecting rod 10, and a plurality of pressing wheels 9 rotatably disposed at the bottom of the connecting rod 10, one end of the adjusting sleeve 12 is disposed on the connecting rod 10, and an inner side wall of the adjusting sleeve 12 is provided with an internal thread engaged with the screw 11; one end of the screw 11 is rotatably provided in the outer housing, and the other end of the screw 11 is provided in the adjustment sleeve 12 and is threadedly coupled to the adjustment sleeve 12.
According to the invention, the screw rod 11, the adjusting sleeve 12, the connecting rod 10 arranged horizontally and the plurality of pressing wheels 9 rotatably arranged at the bottom of the connecting rod 10 are arranged, so that the adjusting sleeve 12 can move along the screw rod 11 by rotating the screw rod 11, and further the connecting rod 10 is driven to move vertically, so that the pressing wheels 9 are pressed on the top of the guide pipe 24. The pressing wheel 9 is arranged at the bottom of the connecting rod 10 in a rotating mode, so that the pressing wheel 9 is driven to rotate in the moving process of the guide pipe 24, and the guide pipe 24 is convenient to move. Optionally, connecting rod 10 is located through the pivot to the pinch roller 9 of this embodiment, and pinch roller 9 lateral wall circumference of this embodiment is equipped with second holding tank 8, and the cross section of second holding tank 8 is the arc, so when pipe 24 centre gripping between push belt 3 and pinch roller 9, pipe 24's top partly can imbed second holding tank 8, so increase the area of contact between pipe 24 and the pinch roller 9, the pinch roller 9 of being convenient for presses pipe 24.
As shown in fig. 1-4, in some embodiments of the present invention, the outer housing is provided with a vertical guide rod 13, the connecting rod 10 is provided with a vertical guide cylinder 14, and one end of the guide rod 13 is slidably disposed on the guide cylinder 14; a knob 15 is provided at an end of the screw rod 11 remote from the adjusting sleeve 12, and the knob 15 is provided outside the outer housing.
According to the invention, the guide rod 13 and the guide cylinder 14 are arranged, so that the guide cylinder 14 can move along the guide rod 13 conveniently, the movement of the connecting rod 10 is guided, and the movement precision of the connecting rod 10 is increased.
As shown in fig. 1 to 4, in some embodiments of the present invention, the outer housing includes an upper housing 16 and a lower housing 17 which are detachably connected, the first opening 1, the second opening 2 and the pressing member are disposed on the upper housing 16, and the pushing member is disposed on the lower housing 17; the upper shell 16 is provided with a connecting block 18, the lower shell 17 is provided with a connecting hole 19 matched with the connecting block 18, and the connecting block 18 is arranged in the connecting hole 19 in a sliding way and can slide out of the connecting hole 19; the lower case 17 is movably provided with a limiting component for limiting the connecting block 18 from sliding out of the connecting hole 19, and the limiting component is detachably connected with the connecting block 18.
When catheter 24 is moved into position, requiring removal of the intubation-tube advancing device from catheter 24, the present invention facilitates separation of upper housing 16 from lower housing 17 by providing upper housing 16 and lower housing 17, with upper housing 16 being removably attached to lower housing 17, and then removing catheter 24 from the intubation-tube advancing device. The invention is provided with the connecting block 18 and the connecting hole 19, so that when the upper shell 16 and the lower shell 17 need to be fixed, the connecting block 18 is inserted into the connecting hole 19 and then is connected with the connecting block 18 through the limiting component. When the upper shell 16 and the lower shell 17 need to be separated, the limiting assembly is separated from the connecting block 18, and the connecting block 18 is moved out of the connecting hole 19.
As shown in fig. 1-4, in some embodiments of the present invention, the limiting component includes a dial block 20 and a latch 21 connected to the dial block 20, the lower housing 17 is provided with a sliding hole communicated with the connecting hole 19, and the latch 21 is slidably disposed in the sliding hole; the connecting block 18 is provided with a clamping hole 22 matched with the bolt 21, and one end of the bolt 21 can slide into the clamping hole 22.
According to the invention, the toggle block 20 and the bolt 21 are arranged, so that after the connecting block 18 is inserted into the connecting hole 19, the toggle block 20 is moved, the toggle block 20 drives one end of the bolt 21 to slide into the clamping hole 22 to realize clamping, and the connecting block 18 is locked, so that the connecting block 18 is prevented from moving out of the connecting hole 19.
As shown in fig. 1 to 4, in some embodiments of the present invention, an elastic member 23 is disposed between the dial block 20 and the lower housing 17, one end of the elastic member 23 is fixed to the lower housing 17, and the other end of the elastic member 23 is fixed to the dial block 20.
According to the invention, the elastic piece 23 is arranged, one end of the elastic piece 23 is fixed on the lower shell 17, the other end of the elastic piece 23 is fixed on the toggle block 20, so that the elastic piece 23 exerts elastic force on the toggle block 20, one end of the bolt 21 is prevented from automatically moving out of the clamping hole 22, and the stability of the device in use is improved. Alternatively, the elastic member 23 of the present embodiment employs a spring.
In summary, the embodiment of the present invention provides an intubation pushing device suitable for a great vessel operation, which includes an outer casing with a hollow interior, a first opening 1 and a second opening 2 oppositely disposed on a side wall of the outer casing, and a pressing component and a pushing component disposed inside the outer casing; the pressing assembly is arranged above the pushing assembly, the pushing assembly comprises an annular pushing belt 3 and a driving assembly for driving the pushing belt 3 to rotate, the driving assembly is arranged on the outer shell, and the pushing belt 3 is in transmission connection with the driving assembly; the top of the push belt 3 is horizontally arranged and positioned below the pressing component.
In practice, one end of the catheter 24 is passed through the first opening 1 and between the pressing assembly and the push belt 3, and then out of the second opening 2 and into the body, clamping the catheter 24 between the pressing assembly and the push belt 3. When the catheter 24 needs to be pushed to move in a human body, the driving assembly drives the push belt 3 to rotate, and under the action of friction force between the catheter 24 and the push belt 3, the rotating push belt 3 drives the catheter 24 to slowly move, so that the catheter 24 is slowly and stably pushed into the human body, and the operation risk is reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cannula advancing device suitable for large vessel operation which characterized in that: the device comprises an outer shell with a hollow interior, wherein a first opening and a second opening which are oppositely arranged are formed in the side wall of the outer shell, and a pressing component and a pushing component are arranged in the outer shell; the pushing assembly comprises an annular pushing belt and a driving assembly used for driving the pushing belt to rotate, the driving assembly is arranged on the outer shell, and the pushing belt is in transmission connection with the driving assembly; the top of the push belt is horizontally arranged and is positioned below the pressing component.
2. A cannula advancing device suitable for large vessel surgery according to claim 1, characterized in that: the driving assembly comprises a driving motor arranged on the outer shell, a driving roller in transmission connection with the driving motor and a driven roller, and the driving roller and the driven roller are both rotatably arranged on the outer shell; the push belt is wound around the drive roller and the driven roller, respectively.
3. A cannula advancing device suitable for large vessel surgery according to claim 2, characterized in that: a first rack is arranged on the outer side wall of the driving roller in the circumferential direction, a second rack matched with the first rack is arranged on the inner side wall of the pushing belt, and the first rack is meshed with the second rack; the transmission shaft of the driving motor is provided with a gear, and the gear is meshed with the first rack.
4. A cannula advancing device suitable for large vessel surgery according to claim 2, characterized in that: the shell is also provided with a processor, an input module and a storage battery, the driving motor adopts a stepping motor, and the input module, the storage battery and the driving motor are all electrically connected with the processor;
the input module is used for inputting the information of the moving length of the catheter into the processor;
the processor is used for receiving the moving length information and sending a rotating signal to the driving motor;
the driving motor is used for receiving the rotation signal and driving the driving roller to rotate.
5. A cannula advancing device suitable for large vessel surgery according to claim 1, characterized in that: the lateral wall is equipped with first holding tank along length direction on push belt's the last side, the cross section of first holding tank is the arc.
6. A cannula advancing device suitable for large vessel surgery according to claim 1, characterized in that: the pressing assembly comprises a vertically arranged screw rod, an adjusting sleeve, a horizontally arranged connecting rod and a plurality of pressing wheels rotatably arranged at the bottom of the connecting rod, one end of the adjusting sleeve is arranged on the connecting rod, and an internal thread matched with the screw rod is arranged on the inner side wall of the adjusting sleeve; one end of the screw rod is rotatably arranged on the outer shell, and the other end of the screw rod is arranged in the adjusting sleeve and is in threaded connection with the adjusting sleeve.
7. A cannula advancing device suitable for large vessel surgery according to claim 6, characterized in that: the outer shell is provided with a vertical guide rod, the connecting rod is provided with a vertical guide cylinder, and one end of the guide rod is slidably arranged on the guide cylinder; the screw rod is kept away from one end of adjusting sleeve is equipped with the knob, the knob is located the outside of shell body.
8. A cannula advancing device suitable for large vessel surgery according to claim 1, characterized in that: the outer shell comprises an upper shell and a lower shell which are detachably connected, the first opening, the second opening and the pressing assembly are arranged on the upper shell, and the pushing assembly is arranged on the lower shell; the upper shell is provided with a connecting block, the lower shell is provided with a connecting hole matched with the connecting block, and the connecting block is arranged in the connecting hole in a sliding mode and can slide out of the connecting hole; the lower shell is movably provided with a limiting component used for limiting the connecting block to slide out of the connecting hole, and the limiting component is detachably connected with the connecting block.
9. A cannula advancing device suitable for large vessel surgery according to claim 8, characterized in that: the limiting assembly comprises a shifting block and a bolt connected with the shifting block, the lower shell is provided with a sliding hole communicated with the connecting hole, and the bolt is slidably arranged in the sliding hole; the connecting block be equipped with bolt complex joint hole, the one end of bolt can slide and get into the joint hole.
10. A cannula advancing device suitable for large vessel surgery according to claim 9, characterized in that: an elastic piece is arranged between the poking block and the lower shell, one end of the elastic piece is fixed on the lower shell, and the other end of the elastic piece is fixed on the poking block.
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| CN202110019343.2A CN112827054A (en) | 2021-01-07 | 2021-01-07 | Intubation propulsion device suitable for large blood vessel operation |
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| CN202110019343.2A CN112827054A (en) | 2021-01-07 | 2021-01-07 | Intubation propulsion device suitable for large blood vessel operation |
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