CN116983494A - A detection device for drainage tubes after cardiac surgery - Google Patents

Abstract

The invention discloses a detection device for drainage tubes after cardiac surgery. It relates to the technical field of postoperative cardiac care and includes a drainage device, a data processor, an alarm, a timer and a drainage tube monitoring module. The drainage device is fixed by The device is fixedly installed at the surgical site. One end of the drainage device is placed at the surgical site. The other end of the drainage device is connected with a drainage tube. The drainage tube is fixedly connected to the fixing device through a limiting device. The present invention can obtain time-related liquid flow information by identifying the state of the liquid transmitted in the drainage tube, thereby facilitating monitoring of the liquid circulation in the drainage tube, and at the same time, it can effectively protect the connection between the drainage device and the drainage device to avoid drainage. The connection part between the tube and the patient is displaced, improving the patient's comfort.

Description

A detection device for drainage tubes after cardiac surgery

Technical field

The present invention relates to the technical field of postoperative cardiac care, and in particular to a detection device for drainage tubes after cardiac surgery.

Background technique

After cardiovascular surgery, it is necessary to drain the effusion from the surgical site through drainage to avoid infection. In the existing postoperative surgical care, when the effusion is drained out, one end of the drainage tube is mostly fixed on the patient and the other end is connected to the effusion. Liquid storage device. When existing drainage equipment fixes the drainage tube, the drainage tube is often tied directly to the hospital bed or the patient with a strap or Velcro. In such a fixation method, the liquid in the drainage tube needs to be kept smooth. circulation, the bandage or Velcro does not tie the drainage tube very hard, which will not only affect the smooth circulation of the liquid in the drainage tube, but also allow the drainage tube to slide in the bandage or Velcro, and when people passing by the hospital bed accidentally pull it After moving the drainage tube, the connection part between the drainage tube and the patient may be displaced, causing pain to the patient.

Contents of the invention

In order to overcome the above defects, the present invention provides a detection device for drainage tubes after cardiac surgery. By identifying the state of the liquid transmitted in the drainage tube, the present invention obtains liquid flow information associated with time, so as to facilitate the detection of liquid circulation in the drainage tube. monitoring, and at the same time, it can effectively protect the connection between the drainage device and the drainage device, avoid displacement of the connection between the drainage tube and the patient, and improve the patient's comfort.

On the one hand, a detection device for drainage tubes after cardiac surgery is provided, including the following:

Drainage device, data processor, alarm, timer and drainage tube monitoring module. The drainage device is fixedly installed at the surgical site through a fixing device. One end of the drainage device is placed at the surgical site, and the other end of the drainage device A flow guide pipe is provided in communication, and the flow guide pipe is fixedly connected to the fixing device through a limiting device;

The limiting device includes a limiting bar, a plurality of limiting grooves are provided on the limiting bar, the guide tube is engaged with the limiting groove, and a rebound device is installed on the side wall of the limiting bar. , the rebound device is located between two limiting grooves, and the guide tube is installed around the rebound device;

The rebound device is provided with a pressure sensor, the pressure sensor is in contact with the guide tube, the pressure sensor is electrically connected to the data processor, and the alarm and timer are both connected to the data processor. The drainage tube monitoring module is electrically connected to the data processor and the timer. The drainage tube monitoring module is used to identify the liquid transmitted inside the drainage tube and obtain liquid flow information associated with time. .

Preferably, the drainage tube monitoring module includes:

An infrared detection unit, used to project infrared light to the drainage tube, analyze and process the infrared light passing through the drainage tube, and determine whether there is currently liquid inside the drainage tube;

A clock marking unit, used to time-calibrate the state of the presence of liquid and the absence of liquid inside the drainage tube;

An image acquisition unit, configured to control a camera unit to capture an in-tube image of the drainage tube when there is liquid inside the drainage tube;

An image analysis unit, configured to analyze and process the intra-tube image, determine the type of liquid currently flowing inside the drainage tube and the liquid flow rate; and combine the results of the time calibration to generate the time-related liquid flow information. ;

Wherein, the time-related liquid flow information includes, at each time point generated by the clock marking unit, the presence or absence of liquid inside the drainage tube, the type of flowing liquid and the liquid flow speed.

Preferably, the rebound device includes a mounting plate and a sliding member. The sliding member is fixedly connected to the side wall of the limiting bar through the mounting plate. The sliding member shrinks toward the mounting plate after receiving force.

Preferably, the sliding member includes an outer sliding sleeve, an inner sliding sleeve and a first return spring. One end of the outer sliding sleeve is fixedly connected to the mounting plate, and the other end of the outer sliding sleeve is sleeved on the mounting plate. Outside the inner sliding sleeve, the first return spring is installed inside the inner sliding sleeve and the outer sliding sleeve. An outer limiting ring is provided at one end of the outer sliding sleeve close to the inner sliding sleeve. The outer limiting ring The inner wall of the ring is in contact with the outer wall of the inner sliding sleeve. An inner limiting ring is provided at one end of the inner sliding sleeve close to the outer sliding sleeve. The outer wall of the inner limiting ring is in contact with the inner wall of the outer sliding sleeve. In contact with each other, an end of the inner sliding sleeve away from the outer sliding sleeve is provided with a top plate, and a side of the top plate away from the inner sliding sleeve is provided with a pressure sensor.

Preferably, the limiting device further includes a snap-in slot, and a check plate is provided in the snap-in slot, and the other end of the check-plate is fixedly connected to one side of the snap slot, and the One end of the check plate is movably connected to the other side of the clamping groove through a leaf spring, and one end of the guide tube connected to the drainage device is disposed close to the leaf spring;

The check plate is trapezoidal, the long side of the trapezoid is fixedly connected to the clamping groove, the short side of the trapezoid is fixedly connected to one end of the leaf spring, and the other end of the leaf spring is fixedly connected to the clamping groove. Slotted fixed connection.

Preferably, the fixing device includes a fixing box, the fixing box is provided with a through hole, the drainage device is disposed through the through hole, and a bidirectional screw rod is provided in the fixing box, and the bidirectional screw rod is provided in the fixing box. One end of the rod extends through one side of the fixed box, and one end of the two-way screw rod extending out of the fixed box is fixedly connected with an adjustment knob. Both ends of the two-way screw rod are provided with adjustment components. The component is threadedly connected to the two-way screw rod, and the adjustment component is used to clamp the drainage device.

Preferably, the adjustment assembly includes a threaded sleeve, a support rod, a connecting plate and a clamping plate. The threaded sleeve is threadedly connected to the two-way screw rod. A support rod is provided on one side of the threaded sleeve. One end of the rod away from the threaded sleeve is provided with a connecting plate, and a clamping plate is provided on one side of the connecting plate close to the center of the through hole. The clamping plate is arc-shaped, and the arc-shaped opening faces the through hole. Hole center.

Preferably, the drainage device includes a drainage tube, a clamping section and a bending tube. The drainage tube is connected to one end of the clamping section, and the clamping section is arranged through the through hole. The bending tube is connected to the other end of the clamping section, and the end of the bending tube away from the clamping section is provided with a rubber ring;

Limiting ring plates are provided at both ends of the clamping section, a rubber intubation tube is provided at one end of the drainage tube close to the clamping section, and a first ring is arranged between the rubber intubation tube and the drainage tube. plate, and a second ring plate is provided at one end of the clamping section close to the drainage tube.

Preferably, the detection device for drainage tubes after cardiac surgery also includes a connector, which includes an elastic band, a snap block and a slider, and one end of the snap block is fixed to the fixing box. The other end of the clamping block is detachably connected to the slider, and the slider is fixedly connected to the elastic strap.

Preferably, a connecting groove is provided in the clamping block, positioning grooves are provided on the side walls of both ends of the connecting groove, a slide groove is provided on the side wall of the slide block, and a sliding rod is provided in the slide groove. One end of the sliding rod extends through the side wall of the slider and extends out of the chute. One end of the sliding rod located in the chute is fixedly connected to a positioning block. A second return spring is also provided in the chute. One end of the second return spring is in contact with the positioning block, and the other end of the second return spring is in contact with the bottom of the chute.

The beneficial effects of the present invention are reflected in:

1. By identifying the status of the liquid transmitted in the drainage tube, time-related liquid flow information is obtained to facilitate monitoring of the liquid circulation in the drainage tube;

2. Through the friction force generated between the guide tube and the limiting plate when the guide tube moves, and the elastic potential energy of the rebound device when the guide tube moves, the impact of external force pulling on the end of the guide tube close to the guide tube can be weakened, and the rebound After the external force pulls away, the device can reset the pulled part of the guide tube through rebound, so that a sufficient length of guide tube can be stored on the limiting device, and the connection between the guide device and the guide device can be effectively protected. position to avoid displacement of the connection between the drainage tube and the patient and improve the patient's comfort.

Description of drawings

In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the specific implementations or the prior art will be briefly introduced below. Throughout the drawings, similar elements or portions are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn to actual scale.

Figure 1 is a schematic diagram of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 2 is a schematic diagram of the connection of electrical components of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 3 is a cross-sectional view of a rebound device of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 4 is a position view of the rebound device and the drainage tube of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 5 is a cross-sectional view of a limiting device of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 6 is a side view of a limiting device of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 7 is a schematic diagram of a check plate of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 8 is a cross-sectional view of a fixation device for a detection device for drainage tubes after cardiac surgery provided by the present invention;

Figure 9 is a three-dimensional structural view of a drainage device used for detecting drainage tubes after cardiac surgery provided by the present invention;

Figure 10 is a schematic diagram of a connector of a detection device for drainage tubes after cardiac surgery provided by the present invention;

Legend: 1-fixing device, 101-fixing box, 102-adjusting knob, 103-two-way screw, 104-threaded sleeve, 105-support rod, 106-connecting plate, 107-clamping plate, 108-through hole, 109 -Limiting groove, 2-drainage device, 201-drainage tube, 202-first ring plate, 203-rubber intubation tube, 204-second ring plate, 205-clamping section, 206-limiting ring plate, 207- Bending tube, 208-rubber ring, 3-limiting device, 301-limiting strip, 302-clipping groove, 303-check plate, 304-leaf spring, 4-guide tube, 5-rebound device, 501-mounting plate, 502-outer sliding sleeve, 503-inner sliding sleeve, 504-inner limit ring, 505-outer limit ring, 506-top plate, 507-pressure sensor, 508-first return spring, 6-extension Plate, 7-connector, 701-elastic strap, 702-clip block, 703-sliding block, 704-sliding rod, 705-positioning block, 706-second return spring.

Implementation

The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and are therefore only examples and cannot be used to limit the scope of the present invention.

It should be noted that, unless otherwise stated, the technical terms or scientific terms used in this application should have the usual meanings understood by those skilled in the art to which this invention belongs.

In Embodiment 1, as shown in Figures 1 and 2, a detection device for drainage tubes after cardiac surgery includes the following:

Drainage device 2, data processor, alarm, timer and drainage tube monitoring module. The drainage device 2 is fixedly installed at the surgical site through the fixing device 1. One end of the drainage device 2 is placed at the surgical site. The other end of the device 2 is connected with a guide tube 4, and the guide tube 4 is fixedly connected to the fixing device 1 through the limiting device 3;

The limiting device 3 includes a limiting bar 301. A plurality of limiting grooves 109 are provided on the limiting bar 301. The guide tube 4 is engaged with the limiting grooves 109. The limiting bar 301 side A rebound device 5 is installed on the wall. The rebound device 5 is located between the two limiting grooves 109. The guide tube 4 is installed around the rebound device 5;

The rebound device is provided with a pressure sensor 507. The pressure sensor 507 is in contact with the guide tube 4. The pressure sensor 507 is electrically connected to the data processor. The alarm and timer are both connected to The data processor is electrically connected, and the drainage tube monitoring module is electrically connected to the data processor and timer. The drainage tube monitoring module is used to identify the liquid transmitted inside the drainage tube and obtain the information associated with time. liquid flow information.

During the use of this device, the drainage device is used to drain the fluid from the wound, the fixing device is used to relatively fix the drainage device and the patient, and the drainage tube is used to guide the fluid flowing out of the drainage device so that the pus can flow out. It is collected at the designated location outside. The way the guide tube is clamped on the limit bar is to wind around the limit bar in a serpentine shape and set around the rebound device. In this way, if the end of the guide tube is far away from the patient, When pulled, the end of the guide tube away from the drainage device is pulled, causing relative displacement with the limit bar, thereby tightening the guide tube surrounding the rebound device. When tightened to a certain length, the guide tube is squeezed back At this time, the end of the guide tube away from the drainage device moves when it is pulled by an external force, and at the same time, the friction force generated between the guide tube and the limiting plate when the guide tube moves, and the elasticity of the rebound device when the guide tube moves The potential energy can weaken the influence of external force on the end of the guide tube close to the guide tube, and the rebound device can reset the pulled part of the guide tube through rebound after the external force pull disappears, so that the position of the guide tube can be stored on the limiting device. There is a sufficient length of the guide tube to achieve the purpose of weakening the pulling force of different strengths. At the same time, due to the serpentine shape of the guide tube, there is friction between the guide tube and multiple limit grooves, and the pulling distance The force required to displace the nearest part of the guide tube of the drainage device is much greater than the force required to displace the part of the guide tube farthest from the drainage device, which can effectively protect the connection between the drainage device and the drainage device. position to avoid displacement of the connection between the drainage tube and the patient and improve patient comfort;

Here, multiple rebound devices can be provided according to the distribution of the drainage tubes, and the locators provided on the multiple rebound devices can be numbered and classified. The alarms can have multiple categories. If the data processor receives the alarm that is closest to the drainage device, The detection data of the pressure sensor indicates that the drainage tube closest to the drainage device is pulled by an external force. At this time, the data processor controls a certain type of alarm to alert the medical staff to check the drainage device and drainage tube. In another situation, , when the data processor receives detection data from a certain pressure sensor, the timer starts timing. When the timer's timing exceeds the set time, it indicates that the guide tube here has been stressed for a long time and there may be a guide tube. If it cannot be reset smoothly or is not reset in time, there is a possibility of poor circulation in the drainage tube, which seriously affects the outflow of effusion. At this time, according to the detection data of the drainage tube detection module, the data processor controls another type of alarm to alarm. Remind medical staff to check the drainage tube and limiting device;

Here, the limit bar is connected to the fixing device through an extension plate 6, and the extension plate can be moved according to the patient's wound position.

More specifically, the drainage tube monitoring module includes:

An infrared detection unit, used to project infrared light to the drainage tube, analyze and process the infrared light passing through the drainage tube, and determine whether there is currently liquid inside the drainage tube;

A clock marking unit, used to time-calibrate the state of the presence of liquid and the absence of liquid inside the drainage tube;

An image acquisition unit, configured to control a camera unit to capture an in-tube image of the drainage tube when there is liquid inside the drainage tube;

An image analysis unit, configured to analyze and process the intra-tube image, determine the type of liquid currently flowing inside the drainage tube and the liquid flow rate; and combine the results of the time calibration to generate the time-related liquid flow information. ;

Wherein, the time-related liquid flow information includes, at each time point generated by the clock marking unit, the presence or absence of liquid inside the drainage tube, the type of flowing liquid and the liquid flow speed.

The clock marking unit is electrically connected to the timer, and the infrared detection unit, image acquisition unit and image analysis unit are electrically connected to the data processor. One end of the drainage tube is connected to the human body, and the other end is connected to the drainage bag, so that the human body discharges Various liquids are input into the drainage bag through the drainage tube, and the drainage tube monitoring module here is used to monitor the flow rate of the liquid in the drainage tube, and detect whether there is liquid in the drainage tube through the infrared detection unit. When there is liquid in the drainage tube, Start the image acquisition unit and the image analysis unit, and combine the clock marking unit to analyze and process the flow rate of the liquid in the drainage tube. When the liquid flow rate is lower than the preset value, the image analysis unit sends a signal to the control processor to control the processor. alarm;

Pre-train the recognition model of the liquid flowing into the drainage tube. First, collect images of different liquids flowing in the drainage tube, such as images of liquids flowing through body fluids, blood, pus, or mixed liquids thereof (wherein, the mixed liquid can be composed of body fluids, blood, At least two kinds of pus are mixed in different proportions); the images are manually calibrated to obtain recognition images of different categories; the manually calibrated images are divided into training sets, verification sets and tests in an 8:1:1 manner. set; among them, the training set is used for subsequent model training, the test set is used for forward optimization of the model during the training process, and the test set is used for verification of the recognition results of the model; the divided training set is sent to the convolutional neural network, and through multiple Batch model training is used to obtain the neural network model with the best recognition effect, which is used to analyze and process the in-tube images.

As shown in Figures 3 and 4, more specifically, the rebound device 5 includes a mounting plate 501 and a sliding member. The sliding member is fixedly connected to the side wall of the limiting bar 301 through the mounting plate 501. The sliding member shrinks toward the mounting plate 501 after receiving force.

In some cases, the clothes, bags and other parts of people passing by the hospital bed pull on the diversion tube, and their limbs are not in direct contact with the diversion tube, making it difficult to detect in time. At this time, a rebound device is set on the limit strip to The flow tube moves, and after squeezing the sliding part, the sliding part shrinks toward the mounting plate after receiving force. At this time, the sliding part also generates thrust between the flow tubes, so that after the subsequent external force disappears, the guide tube can be moved. When the flow tube is pushed back to its original position, it can also resist external forces through the pushing force and exert force on clothes, bags and other parts. When clothes, bags and limbs are in contact, the force can be transmitted to the limbs in time to help personnel find out as early as possible.

More specifically, the sliding member includes an outer sliding sleeve 502, an inner sliding sleeve 503 and a first return spring 508. One end of the outer sliding sleeve 502 is fixedly connected to the mounting plate 501. The other end is sleeved on the outside of the inner sliding sleeve 503. The first return spring 508 is installed inside the inner sliding sleeve 503 and the outer sliding sleeve 502. The outer sliding sleeve 502 is close to the inner sliding sleeve 503. One end is provided with an outer limit ring 505. The inner wall of the outer limit ring 505 is in contact with the outer wall of the inner sliding sleeve 503. The inner sliding sleeve 503 is provided with an inner limit at one end close to the outer sliding sleeve 502. ring 504. The outer wall of the inner limiting ring 504 is in contact with the inner wall of the outer sliding sleeve 502. The end of the inner sliding sleeve 503 away from the outer sliding sleeve 502 is provided with a top plate 506. The top plate 506 is away from the outer sliding sleeve 502. A pressure sensor 507 is provided on one side of the inner sliding sleeve 503 .

When there is no external force acting on the sliding part, the first return spring exerts force on the top plate, causing the inner limit ring to contact the outer limit ring. At this time, the sliding part is in the longest length state, and the sliding part is under stress. down, the inner sliding sleeve moves toward the inside of the outer sliding sleeve, thereby squeezing the first return spring, thereby increasing the force exerted by the first return spring on the top plate, which can effectively resist external force. Here the pressure sensor is used to detect The pressure between the top plate and the guide tube, where the pressure between the top plate and the guide tube represents the external force exerted on the guide tube.

As shown in Figures 5, 6, and 7, more specifically, the limiting device 3 also includes a snap slot 302, and a check plate 303 is provided in the snap slot 302. The check plate The other end of 303 is fixedly connected to one side of the clamping groove 302, one end of the check plate 303 is movably connected to the other side of the clamping slot 302 through a leaf spring 304, and the guide tube 4 is connected to the other side of the clamping slot 302. One end of the connection of the drainage device 2 is arranged close to the leaf spring 304;

The check plate 303 is trapezoidal, the long side of the trapezoid is fixedly connected to the clamping groove 302, the short side of the trapezoid is fixedly connected to one end of the leaf spring 304, and the other end of the leaf spring 304 is fixedly connected. Fixedly connected with the clamping groove 302 .

Here, the contact surface between the check plate and the guide tube can be pasted with woolen material to increase friction. The depth of the snap-in groove should be at least 3/2 of the radius length of the guide tube. There are multiple snap-in grooves in a single snap-in groove. check plate;

Due to the arrangement of the leaf spring, the trapezoidal short side of the check plate can be tilted relative to the clamping groove. Multiple check plates are provided in the clamping slot, and the multiple check plates form a cylindrical structure. The direction in which the short side of the trapezoid flows to the long side of the trapezoid of the check plate is the forward direction, the direction in which the long side of the trapezoid of the check plate flows to the short side of the trapezoid of the check plate is the reverse direction, and the flow direction of the accumulated fluid in the diversion tube is the forward direction. ;

When the guide tube is clamped in the clamping groove, the check plate is squeezed and pressure is exerted on the leaf spring, and the leaf spring generates an upward thrust perpendicular to the check plate;

When the guide tube is pulled by an external force, the direction of movement of the guide tube is forward. During the movement, the friction between the guide tube and the check plate is also positive, plus the thrust generated by the leaf spring, the two Under the action of force, the guide tube drives the check plate to strengthen the upward tendency. The short sides of the check plate shrink, and the diameter of the arc formed by the short sides becomes smaller, which exerts a clamping force on the guide tube, further increasing the clamping force on the guide tube. The resistance of the draft tube during forward movement;

When the rebound device pushes the guide tube to reset, the rebound device drives the guide tube away from the guide device to move in the reverse direction. During the reverse movement, the guide tube squeezes the check plate. At this time, the guide plate and the stopper The friction force of the return plate is in the opposite direction, which offsets the thrust generated by the leaf spring, making the guide tube easier to move in the reverse direction than in the forward direction.

As shown in Figure 8, more specifically, the fixing device 1 includes a fixing box 101, the fixing box 101 is provided with a through hole 108, and the drainage device 2 is disposed through the through hole 108. There is a two-way screw rod 103 inside the fixed box 101. One end of the two-way screw rod 103 extends through one side of the fixed box 101. One end of the two-way screw rod 103 that extends out of the fixed box 101 is fixedly connected with an adjustment device. The knob 102 and the two ends of the two-way screw rod 103 are provided with adjustment components. The adjustment components are threadedly connected to the two-way screw rod 103. The adjustment components are used to clamp the drainage device 2.

When in use, turn the adjustment knob to cause the two-way screw to rotate. After the two-way screw rotates, the adjustment components at both ends can move toward the center of the two-way screw at the same time or separate to both ends, so that the adjustment components can also clamp the drainage device. Tighten or loosen, and can also be matched with drainage devices of different diameters, suitable for the drainage needs of fluid accumulation in different periods after surgery;

A limit groove 109 is also provided on the inner wall of the side of the fixed box away from the adjustment knob, and the end of the two-way screw rod far away from the adjustment knob extends into the limit groove 109 to prevent the two-way screw rod from deflecting during rotation.

More specifically, the adjustment assembly includes a threaded sleeve 104, a support rod 105, a connecting plate 106 and a clamping plate 107. The threaded sleeve 104 is threadedly connected to the two-way screw rod 103. One side of the threaded sleeve 104 A support rod 105 is provided, and an end of the support rod 105 away from the threaded sleeve 104 is provided with a connecting plate 106. The connecting plate 106 is provided with a clamping plate 107 on one side close to the center of the through hole 108. The holding plate 107 is arc-shaped, and the arc-shaped opening faces the center of the through hole 108 .

When the two-way screw rotates, due to the limitations of the support rod, connecting plate and clamping plate, the threaded sleeve moves relative to the two-way screw, thereby driving the support rod, connecting plate and clamping plate to move, and the two-way screw moves in one direction. When rotating, the two clamping plates move closer to the center of the circle to clamp the drainage device. When the two-way screw rotates in the other direction, the two clamping plates move away from the center of the circle and release the drainage device.

As shown in Figure 9, more specifically, the drainage device 2 includes a drainage tube 201, a clamping section 205 and a bending tube 207. The drainage tube 201 is connected to one end of the clamping section 205. The clamping section 205 is disposed through the through hole 108, the bending tube 207 is connected with the other end of the clamping section 205, and the end of the bending tube 207 away from the clamping section 205 is provided with a rubber Ring 208;

Limiting ring plates 206 are provided at both ends of the clamping section 205, and a rubber intubation tube 203 is provided at one end of the drainage tube 201 close to the clamping section 205. The rubber intubation tube 203 and the drainage tube 201 A first ring plate 202 is provided therebetween, and a second ring plate 204 is provided at one end of the clamping section 205 close to the drainage tube 201 .

When it is necessary to separate the drainage tube from the clamping section, pull out the rubber cannula from the end of the clamping section to disassemble the drainage tube. Drainage tubes of different calibers can be replaced according to the size of the wound at different stages, which is not only convenient for replacement , which can save equipment costs at the same time. Here, the first ring plate and the second ring plate are also made of rubber material. After the rubber cannula is inserted into the clamping section, the first ring plate and the second ring plate are in contact, so that the alignment can be achieved. The connection part is sealed to avoid leakage; the distance between the two limit ring plates is the same as the width of the clamping plate. The purpose of this setting is to avoid relative displacement between the clamping section and the fixed box, and further ensure the fixing effect of the drainage device .

As shown in Figure 10, more specifically, the detection device for drainage tubes after cardiac surgery also includes a connector 7. The connector 7 includes an elastic band 701, a clamping block 702, and a slider 703. One end of the clamping block 702 is fixedly connected to the fixed box 101, and the other end of the clamping block 702 is detachably connected to the slider 703. The slider 703 is fixedly connected to the elastic strap 701.

Both ends of the elastic bandage are connected with sliders, and the connecting pieces are installed at both ends of the fixed box. When in use, the fixed box is placed on the patient's body surface, so that the clamping block at one end is connected to the slider, and the elastic bandage Go around the patient's body and reach the clamping block at the other end. The slider of the elastic strap is connected to the clamping block at the other end, so that the device can be tied to the patient's body surface.

More specifically, the clamping block 702 is provided with a connecting groove, and the side walls at both ends of the connecting groove are provided with positioning grooves. The side walls of the slide block 703 are provided with slide grooves, and the slide grooves are provided with sliding grooves. Rod 704. One end of the sliding rod 704 penetrates the side wall of the slider 703 and extends out of the chute. One end of the sliding rod 704 located in the chute is fixedly connected with a positioning block 705. There is also a positioning block 705 in the chute. There is a second return spring 706, one end of the second return spring 706 is in contact with the positioning block 705, and the other end of the second return spring 706 is in contact with the bottom of the chute.

After the slider is extended into the connection groove, the positioning groove is connected with the chute. When it is necessary to connect the slider with the clamping block, press the slider to make the slider fall into the chute, and then push the slider into the connection. In the groove, due to the thrust of the second return spring on the positioning block, the sliding rod is pushed out of the slide groove until it protrudes from the positioning groove, thereby achieving the fixation of the clamping block and the slider. When it is necessary to connect the slider and When the clamping block is separated, press the slide bar to return it to the chute, and then pull the slide block out of the connection groove.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope, they should be covered by the claims and the scope of the description of the present invention.

Claims (10)

1. A detection device for cardiac postoperative drainage tube, characterized by that includes following content:

the drainage device comprises a drainage device (2), a data processor, an alarm, a timer and a drainage tube monitoring module, wherein the drainage device (2) is fixedly arranged at an operation position through a fixing device (1), one end of the drainage device (2) is arranged at the operation position, the other end of the drainage device (2) is communicated with a guide tube (4), and the guide tube (4) is fixedly connected with the fixing device (1) through a limiting device (3);

the limiting device (3) comprises a limiting strip (301), a plurality of limiting grooves (109) are formed in the limiting strip (301), the guide pipe (4) is clamped with the limiting grooves (109), the side wall of the limiting strip (301) is provided with a rebound device (5), the rebound device (5) is located between the two limiting grooves (109), and the guide pipe (4) is arranged around the rebound device (5);

the rebound device is provided with a pressure sensor (507), the pressure sensor (507) is abutted to the flow guide pipe (4), the pressure sensor (507) is electrically connected with the data processor, the alarm and the timer are electrically connected with the data processor, the drainage tube monitoring module is electrically connected with the data processor and the timer, and the drainage tube monitoring module is used for identifying liquid conveyed inside the drainage tube and obtaining liquid flow information associated with time.

2. The detection apparatus for a post-cardiac-operation drainage tube of claim 1, wherein the drainage tube monitoring module comprises:

the infrared detection unit is used for projecting infrared light to the drainage tube, analyzing and processing the infrared light transmitted through the drainage tube and determining whether liquid exists in the drainage tube currently;

the clock marking unit is used for time calibrating the states of the existence of liquid and the nonexistence of liquid in the drainage tube;

the image acquisition unit is used for controlling the camera unit to shoot an in-tube image of the drainage tube when liquid exists in the drainage tube;

the image analysis unit is used for analyzing and processing the image in the tube and determining the type and the flow speed of the liquid flowing in the drainage tube at present; and generating the time-related liquid flow information in combination with the time calibration result;

wherein the time-dependent liquid flow information includes a state of presence or absence of liquid inside the draft tube, a type of liquid flowing, and a liquid flow rate at each time point generated by the clock marking unit.

3. The detection device for a post-cardiac-operation drainage tube according to claim 1, wherein the rebound device (5) comprises a mounting plate (501) and a sliding piece, the sliding piece is fixedly connected with the side wall of the limit strip (301) through the mounting plate (501), and the sliding piece contracts towards the mounting plate (501) after being stressed.

4. The detection device for a post-cardiac drainage tube according to claim 3, wherein the sliding part comprises an outer sliding sleeve (502), an inner sliding sleeve (503) and a first return spring (508), one end of the outer sliding sleeve (502) is fixedly connected with the mounting plate (501), the other end of the outer sliding sleeve (502) is sleeved outside the inner sliding sleeve (503), the first return spring (508) is arranged inside the inner sliding sleeve (503) and the outer sliding sleeve (502), one end, close to the inner sliding sleeve (503), of the outer sliding sleeve (502) is provided with an outer limiting ring (505), the inner wall of the outer limiting ring (505) is in butt joint with the outer wall of the inner sliding sleeve (503), one end, close to the outer sliding sleeve (502), of the inner limiting ring (504) is provided with an inner limiting ring (504), one end, far away from the outer sliding sleeve (502), of the inner sliding sleeve (503) is provided with a top plate (506), and one side, far away from the top plate (507), of the inner sliding sleeve (503), is provided with a top plate (507).

5. The detection device for the post-cardiac-operation drainage tube according to claim 1, wherein the limiting device (3) further comprises a clamping groove (302), a check plate (303) is arranged in the clamping groove (302), one end of the check plate (303) is fixedly connected with one side of the clamping groove (302), the other end of the check plate (303) is movably connected with the other side of the clamping groove (302) through a leaf spring (304), and one end, connected with the drainage device (2), of the guide tube (4) is arranged close to the leaf spring (304);

the check plate (303) is trapezoidal, the long side of trapezoid is fixedly connected with the clamping groove (302), the short side of trapezoid is fixedly connected with one end of the leaf spring (304), and the other end of the leaf spring (304) is fixedly connected with the clamping groove (302).

6. The detection device for a cardiac postoperative drainage tube according to claim 1, wherein the fixing device (1) comprises a fixing box (101), a through hole (108) is formed in the fixing box (101) in a penetrating manner, the drainage device (2) is arranged through the through hole (108), a bidirectional screw rod (103) is arranged in the fixing box (101), one end of the bidirectional screw rod (103) penetrates through one side of the fixing box (101) and extends out, an adjusting knob (102) is fixedly connected to one end of the bidirectional screw rod (103) extending out of the fixing box (101), adjusting components are arranged at two ends of the bidirectional screw rod (103) and are in threaded connection with the bidirectional screw rod (103), and the adjusting components are used for clamping the drainage device (2).

7. The detection device for a post-cardiac surgery drainage tube according to claim 6, wherein the adjusting component comprises a threaded sleeve (104), a supporting rod (105), a connecting plate (106) and a clamping plate (107), the threaded sleeve (104) is in threaded connection with the bidirectional screw rod (103), the supporting rod (105) is arranged on one side of the threaded sleeve (104), the connecting plate (106) is arranged at one end of the supporting rod (105) away from the threaded sleeve (104), the clamping plate (107) is arranged on one side, close to the center of the through hole (108), of the connecting plate (106), the clamping plate (107) is arc-shaped, and the arc-shaped opening faces the center of the through hole (108).

8. The detection device for a post-cardiac-operation drainage tube according to claim 7, wherein the drainage device (2) comprises a drainage tube (201), a clamping section (205) and a bending tube (207), the drainage tube (201) is arranged in communication with one end of the clamping section (205), the clamping section (205) passes through the through hole (108), the bending tube (207) is arranged in communication with the other end of the clamping section (205), and one end of the bending tube (207) away from the clamping section (205) is provided with a rubber ring (208);

both ends of holding section (205) all are equipped with spacing ring board (206), the drainage tube (201) is close to the one end of holding section (205) is equipped with rubber intubate (203), rubber intubate (203) with be equipped with first annular plate (202) between drainage tube (201), the one end that holding section (205) is close to drainage tube (201) is equipped with second annular plate (204).

9. The detection device for a post-cardiac-operation drainage tube according to claim 8, further comprising a connecting piece (7), wherein the connecting piece (7) comprises an elastic binding band (701), a clamping block (702) and a sliding block (703), one end of the clamping block (702) is fixedly connected with the fixing box (101), the other end of the clamping block (702) is detachably connected with the sliding block (703), and the sliding block (703) is fixedly connected with the elastic binding band (701).

10. The detection device for a cardiac postoperative drainage tube according to claim 9, wherein a connecting groove is formed in the clamping block (702), positioning grooves are formed in the side walls of two ends of the connecting groove, sliding grooves are formed in the side walls of the sliding block (703), sliding rods (704) are arranged in the sliding grooves, one ends of the sliding rods (704) penetrate through the side walls of the sliding block (703) and extend out of the sliding grooves, one ends of the sliding rods (704) located in the sliding grooves are fixedly connected with positioning blocks (705), second reset springs (706) are further arranged in the sliding grooves, one ends of the second reset springs (706) are in butt joint with the positioning blocks (705), and the other ends of the second reset springs (706) are in butt joint with the bottoms of the sliding grooves.