Anti-blocking drainage equipment for thoracic surgery department

Abstract

The invention relates to the technical field of medical instruments, in particular to anti-blocking drainage equipment for thoracic surgery, which comprises a negative pressure aspirator and a liquid collection bottle which are communicated with each other, a liquid drainage pipe is communicated between the negative pressure aspirator and the liquid collection bottle, the output end of the negative pressure aspirator is communicated with a drainage pipe, and the upper part, far away from the negative pressure aspirator, of the drainage pipe is communicated with an anti-blocking assembly. One end, away from the drainage tube, of the anti-blocking assembly communicates with a puncture tube; the anti-blocking assembly comprises a connecting assembly, the connecting assembly is communicated with the drainage tube and the puncture tube, the anti-blocking assembly further comprises a pneumatic assembly used for detecting blockage of the drainage tube, a plurality of crushing assemblies used for crushing blockages are fixedly connected into the pneumatic assembly, and a gas flow sensor is fixedly connected to one side of the pneumatic assembly. The blockage condition of the drainage tube is detected through the pneumatic assembly, and meanwhile blockage can be crushed through the crushing assembly in the drainage tube, so that the drainage equipment operates normally.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anti-blocking drainage device used in thoracic surgery. Background Art

[0002] In thoracic surgery, anti-blockage drainage equipment is an indispensable and important medical device. The main purpose of this type of equipment is to guide the pus, blood and other fluids accumulated between human tissues or in the body cavity after surgery to the outside of the body through precise and efficient drainage operations, effectively preventing postoperative infection, promoting rapid wound healing, and providing patients with a safer and more comfortable recovery environment. The application of anti-blockage drainage equipment not only greatly reduces the workload of medical staff, but also significantly improves the success rate of surgical treatment and the quality of patient recovery. It is an indispensable and important part of modern thoracic surgery.

[0003] However, the existing anti-blockage drainage equipment for thoracic surgery still has some obvious defects in design and function. During the drainage process, traditional drainage equipment is often difficult to effectively deal with the blockage problem of particles or coagulated blood clots in the pipeline, which not only reduces the drainage efficiency, but may also cause serious complications such as postoperative infection. In addition, according to the blockage of the pipeline, most of the existing technologies rely on sensors to respond and notify medical staff to clear the drainage tube, which reduces the drainage efficiency. These defects have greatly limited the effectiveness and safety of existing equipment in clinical applications. In view of the fact that the drainage tube is prone to blockage during the drainage process, an anti-blockage drainage device for thoracic surgery is proposed. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an anti-blockage drainage device for thoracic surgery. While detecting the blockage of the drainage tube through a pneumatic component, the blockage can also be broken by an internal breaking component, so that the drainage device can operate normally.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: an anti-blocking drainage device for thoracic surgery, comprising a negative pressure suction device and a liquid collection bottle connected to each other, a liquid discharge tube connected between the negative pressure suction device and the liquid collection bottle, a drainage tube connected to the output end of the negative pressure suction device, an anti-blocking component for filtering waste liquid connected to one end of the drainage tube away from the negative pressure suction device, a puncture tube connected to one end of the anti-blocking component away from the drainage tube, and a controller connected to the negative pressure suction device signal;

[0006] The anti-blocking assembly includes a connecting assembly, which is connected to the drainage tube and the puncture tube, and the connecting assembly includes a first connecting ring fixedly connected to one end of the drainage tube and a second connecting ring connected to one end of the puncture tube;

[0007] The anti-blocking component also includes a pneumatic component for detecting blockage of the drainage tube. The input end of the pneumatic component is fixedly connected and communicated with the first connecting ring, and the output end of the pneumatic component is fixedly connected and communicated with the second connecting ring. Several crushing components for crushing blockages are fixedly connected in the pneumatic component. A gas flow sensor is provided on one side of the pneumatic component, and the gas flow sensor is connected to the controller signal.

[0008] The technical principle of the above scheme is as follows: the negative pressure suction device generates negative pressure, draws out the waste liquid in the body through the drainage tube, and finally collects it in the liquid collection bottle. In order to ensure that the waste liquid does not block the pipeline during the drainage process, the pneumatic component drives the reciprocating motion through the internal gas to make the waste liquid flow through the anti-blocking component to the liquid collection bottle. When the pneumatic component is operating, it will assist the negative pressure suction device to absorb the waste liquid. If the puncture tube or drainage tube is blocked, the reciprocating motion of the pneumatic component will be hindered. The gas flow sensor receives the gas discharged by the pneumatic component and monitors it. If the gas flow is lower than the threshold set by the controller, the controller determines that the drainage tube or puncture tube is blocked and issues a warning.

[0009] When the waste liquid flows through the anti-blocking component, since the anti-blocking component is located between the puncture tube and the drainage tube, the particles or congested blood tissue in the waste liquid will be crushed by the crushing component when the pneumatic component moves.

[0010] The above scheme has the following beneficial effects:

[0011] 1. In this scheme, the pneumatic component can assist the negative pressure aspirator to absorb the waste liquid, so that the waste liquid in the puncture tube is accelerated to be discharged into the drainage tube and then into the liquid collection bottle, which improves the drainage efficiency, reduces the drainage time, and is conducive to the rapid recovery of the patient.

[0012] 2. In this solution, the design of the crushing component allows the particles or congested tissue in the waste liquid to be effectively crushed during the movement of the pneumatic component, thereby reducing the risk of drainage tube blockage and the frequency of manual unblocking of the drainage tube, and improving the continuity and stability of the drainage process.

[0013] 3. This solution uses a gas flow sensor to monitor the gas flow discharged from the pneumatic component in real time, which can quickly capture abnormal conditions such as blockage of the drainage tube or puncture tube. Once the gas flow is lower than the set threshold, the controller immediately issues a warning, allowing medical staff to detect and deal with the blockage problem in time to avoid worsening of the disease or the occurrence of complications.

[0014] Furthermore, a plurality of pressure sensors are installed on the inner wall of the drainage tube, and the pressure sensors are all connected to the controller signals.

[0015] Beneficial effects: The pressure sensor can monitor the pressure changes inside the drainage tube in real time, which helps medical staff to promptly understand the working status of the drainage tube and determine whether there are any abnormal conditions. According to the pressure changes inside the drainage tube, the controller can automatically adjust the working parameters of the negative pressure aspirator (such as negative pressure intensity, suction frequency, etc.) to help ensure that the drainage tube remains unobstructed.

[0016] Furthermore, a liquid level sensor is fixedly connected to the inner wall of the negative pressure suction device close to the discharge pipe. A one-way valve is provided in the discharge pipe to limit the flow of liquid from the negative pressure suction device to the liquid collection bottle. The discharge pipe is connected to a liquid pump, and both the liquid pump and the liquid level sensor are connected to the controller signal.

[0017] Beneficial effects: The liquid level sensor can monitor the changes in the liquid level in the negative pressure aspirator in real time. When the liquid level sensor detects that the liquid level in the drainage tube is too high, the controller can start the liquid pump to accelerate the discharge of waste liquid; when the liquid level drops to a safe range, the liquid pump stops working, which not only improves the drainage efficiency, but also avoids the risk of overflow caused by excessive liquid level in the negative pressure aspirator; the setting of the one-way valve ensures that the waste liquid can only flow from the negative pressure aspirator to the liquid collection bottle, and will not flow back into the negative drainage tube or the patient's body, which helps to protect the patient from secondary contamination of the waste liquid while ensuring the smooth progress of the drainage process.

[0018] Furthermore, a plurality of through holes are formed on the puncture tube.

[0019] Beneficial effects: The design of the through holes enables the puncture tube to collect waste fluid in the body more effectively. The waste fluid can not only flow out through the main part of the puncture tube, but also be quickly discharged through these through holes, which improves the drainage efficiency of the waste fluid and reduces the time required for drainage; the multiple through holes on the puncture tube allow the waste fluid to be collected from multiple directions, avoiding the excessive accumulation of waste fluid in a certain area, which helps to reduce the risk of drainage tube blockage, because the waste fluid will not form a blockage that is difficult to discharge due to excessive local accumulation. The presence of the through holes also makes it easier to disperse and crush the particles or congested tissue in the waste fluid during the outflow process.

[0020] Furthermore, a filter bag is detachably connected inside the second connecting ring.

[0021] Beneficial effects: The setting of the filter bag allows the waste liquid to filter out larger particles, congested tissue and other impurities before it flows through the connecting components, which helps reduce the risk of drainage tube blockage and ensures the smooth progress of the drainage process. The filter bag adopts a detachable connection method, allowing medical staff to easily remove it for cleaning or replacement when necessary.

[0022] Furthermore, the pneumatic component includes a liquid box connected between the first connecting ring and the second connecting ring, a diaphragm is fixedly connected inside the liquid box, the diaphragm divides the inside of the liquid box into a liquid chamber and a pneumatic chamber, the crushing components are fixedly connected to one side of the diaphragm located in the liquid chamber, the liquid chamber and the pneumatic chamber are fixedly connected with an arc plate for limiting the diaphragm, the arc plate is provided with a number of flow ports corresponding to the crushing components, the waste liquid flows from the puncture tube through the liquid chamber and into the drainage tube, an air port is provided on one side of the liquid box located in the pneumatic chamber, an air column is slidably connected to the air port, a gas component that provides power to the air column is fixedly connected to one end of the air column away from the pneumatic chamber, the air column can move with the drive of the gas component and change the air pressure value in the pneumatic chamber, and the diaphragm can contract and open with the change of the air pressure value.

[0023] Beneficial effects: The design of the liquid cavity allows the waste liquid to flow smoothly from the puncture tube into the drainage tube, avoiding the accumulation and blockage of the waste liquid in the connecting assembly. The setting of the air port allows the external air pressure to enter the pneumatic cavity, thereby driving the movement of the diaphragm. By adjusting the size of the air port or the intensity of the air pressure, the movement speed and amplitude of the diaphragm can be precisely controlled, thereby achieving fine adjustment of the waste liquid drainage process.

[0024] Furthermore, the gas component includes a cylinder fixedly connected to the outside of the liquid box, the cylinder output shaft is coaxially fixedly connected to the gas column, and the cylinder is connected to the controller signal.

[0025] Beneficial effects: The controller can accurately adjust the output force of the cylinder according to actual needs, thereby achieving precise control of the pressure in the pneumatic cavity. By adjusting the output force of the cylinder, the movement speed and amplitude of the diaphragm can be adjusted, thereby assisting the negative pressure aspirator to absorb the flow rate of the waste liquid, thereby more effectively preventing particulate matter or congested tissue in the waste liquid from forming blockages during the drainage process.

[0026] Furthermore, the crushing components include a plurality of rubber columns fixedly connected to the diaphragm on one side of the liquid cavity, the ends of the rubber columns away from the diaphragm are fixedly connected with inclined thorns, and the side of the liquid cavity away from the diaphragm is located in the movement track of the inclined thorns.

[0027] Beneficial effects: The beveled thorns make it easier for the impurities in the waste liquid or congested blood tissue to be captured and punctured when they flow through the liquid cavity, thereby effectively preventing the formation of blockages; the elasticity of the rubber column and the sharpness of the beveled thorns are combined to generate sufficient impact force to help clear potential blockages and ensure the smooth flow of the drainage tube.

[0028] Furthermore, one-way ball valves are provided on both sides of the liquid chamber close to the first connecting ring and the second connecting ring.

[0029] Beneficial effects: The design of the one-way ball valve ensures that the waste liquid can only flow from the puncture tube through the liquid cavity into the drainage tube in one direction, avoiding backflow or leakage of the waste liquid, thereby improving the stability and efficiency of the drainage process. During the drainage process, the one-way ball valve can effectively reduce the pressure fluctuations in the liquid cavity, ensuring that the waste liquid flows into the drainage tube at a stable speed and flow rate, avoiding poor drainage or blockage caused by pressure changes.

[0030] Furthermore, ultrasonic sensors are fixedly connected to the top wall and the bottom wall of the liquid chamber respectively, and the ultrasonic sensors are connected to the controller signals.

[0031] Beneficial effects: The ultrasonic sensor can monitor the flow state and liquid level changes of the waste liquid in the pneumatic cavity. When it is found that the waste liquid flows poorly or the liquid level rises abnormally, it can send a warning signal to the controller in time. Through real-time monitoring by the ultrasonic sensor, the controller can dynamically adjust the drainage path to ensure that the waste liquid can flow smoothly into the drainage tube, reducing the problem of poor drainage caused by poor path.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an axonometric diagram of an embodiment of the anti-blocking drainage device for thoracic surgery of the present invention;

[0034] Figure 2 It is a schematic front cross-sectional view of a liquid box of an embodiment of the anti-blocking drainage device for thoracic surgery of the present invention;

[0035] Figure 3 This is a cross-sectional schematic diagram of the diaphragm and crushing components of an embodiment of the anti-blockage drainage device for thoracic surgery of the present invention.

[0036] The figure marks in the drawings of the specification include: 1. liquid box; 2. second connecting ring; 3. puncture tube; 4. through hole; 5. drainage tube; 6. negative pressure aspirator; 7. drainage tube; 8. liquid collecting bottle; 9. cylinder; 10. air column; 11. first connecting ring; 12. one-way ball valve; 13. liquid chamber; 14. arc plate; 15. flow port; 16. pneumatic chamber; 17. diaphragm; 18. rubber column; 19. inclined thorn. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The following is further described in detail through specific implementation methods:

[0041] Example:

[0042] As attached Figure 1 , Figure 2 and Figure 3 As shown: an anti-blockage drainage device for thoracic surgery, including a negative pressure suction device 6 and a liquid collecting bottle 8 that are interconnected, the negative pressure suction device 6 signal is connected to a controller, a drainage pipe 7 is connected between the negative pressure suction device 6 and the liquid collecting bottle 8, a liquid level sensor is bolted to the inner wall of the negative pressure suction device 6 on the side close to the drainage pipe 7, a one-way valve is provided in the drainage pipe 7 to limit the flow of liquid from the negative pressure suction device 6 to the liquid collecting bottle 8, a liquid pump is connected to the drainage pipe 7, and the liquid pump and the liquid level sensor are both connected to the controller signal.

[0043] The output end of the negative pressure suction device 6 is connected to the drainage tube 5, and a plurality of pressure sensors are installed on the inner wall of the drainage tube 5. The pressure sensors are all connected to the controller signal. The end of the drainage tube 5 away from the negative pressure suction device 6 is connected to an anti-blocking component for filtering waste liquid. The end of the anti-blocking component away from the drainage tube 5 is connected to the puncture tube 3, and a plurality of through holes 4 are opened on the puncture tube 3.

[0044] The anti-blocking component includes a connecting component, which is connected to the drainage tube 5 and the puncture tube 3. The connecting component includes a first connecting ring 11 fixedly connected to one end of the drainage tube 5 and a second connecting ring 2 connected to one end of the puncture tube 3. The anti-blocking component also includes a pneumatic component for detecting blockage of the drainage tube 5. The input end of the pneumatic component is fixedly connected and connected to the first connecting ring 11, and the output end of the pneumatic component is fixedly connected and connected to the second connecting ring 2. Several crushing components for crushing blockages are welded in the pneumatic component. A gas flow sensor is bolted to one side of the pneumatic component, and the gas flow sensor is connected to the controller signal.

[0045] The connecting assembly comprises a first connecting ring 11 welded to one end of the drainage tube 5 and a second connecting ring 2 connected to one end of the puncture tube 3 , wherein a filter bag is detachably connected to the inside of the second connecting ring 2 .

[0046] The pneumatic component includes a liquid box 1 connected between the first connecting ring 11 and the second connecting ring 2. A diaphragm 17 is fixedly connected inside the liquid box 1, and the diaphragm 17 divides the inside of the liquid box 1 into a liquid chamber 13 and a pneumatic chamber 16. The crushing components are fixedly connected to the diaphragm 17 on one side of the liquid chamber 13. The liquid chamber 13 and the pneumatic chamber 16 are fixedly connected with an arc plate 14 for limiting the diaphragm 17. The arc plate 14 is provided with a plurality of flow openings 15 corresponding to the crushing components. The waste liquid flows from the puncture tube 3 through the liquid chamber 13 and into the drainage tube 5. An air port is provided on one side of the liquid box 1 located in the pneumatic chamber 16, and an air column 10 is slidably connected to the air port. A gas component that provides power to the air column 10 is fixedly connected to one end of the air column 10 away from the pneumatic chamber 16. The air column 10 can move with the drive of the gas component and change the air pressure value in the pneumatic chamber 16. The diaphragm 17 can contract and open with the change of the air pressure value.

[0047] The gas component includes a cylinder 9 fixedly connected to the outside of the liquid box 1, the output shaft of the cylinder 9 is coaxially bolted to the gas column 10, the end of the gas column 10 away from the cylinder 9 extends into the pneumatic cavity 16, the cylinder 9 is connected to the controller signal, the top wall and the bottom wall of the liquid cavity 13 are respectively bolted to ultrasonic sensors, and the ultrasonic sensors are all connected to the controller signal.

[0048] The crushing components include a rubber column 18 welded to the diaphragm 17 on one side of the liquid chamber 13 , and an inclined thorn 19 is welded to one end of the rubber column 18 away from the diaphragm 17 . The side of the liquid chamber 13 away from the diaphragm 17 is located in the movement trajectory of the inclined thorn 19 .

[0049] The specific implementation process is as follows: start the negative pressure suction device 6, generate negative pressure, and start to suck the waste liquid. The waste liquid enters the filter bag of the anti-blocking component from the patient's chest cavity through the puncture tube 3. The waste liquid can not only flow out through the main part of the puncture tube 3, but also be quickly discharged through these through holes 4, thereby improving the drainage efficiency of the waste liquid and reducing the time required for drainage; the multiple through holes 4 on the puncture tube 3 allow the waste liquid to be collected from multiple directions, avoiding the excessive accumulation of waste liquid in a certain area, and helping to reduce the risk of blockage of the drainage tube 5, because the waste liquid will not form a blockage that is difficult to discharge due to excessive local accumulation. The presence of the through holes 4 also makes it easier to disperse and crush the particulate matter or congested tissue in the waste liquid during the outflow process.

[0050] The setting of the filter bag enables the waste liquid to filter out larger particles, congested tissue and other impurities when it flows through the second connecting ring 2, which helps to reduce the risk of blockage of the liquid box 1 and the drainage tube 5 and ensure the smooth drainage process. The filter bag adopts a detachable connection method, so that medical staff can easily remove it for cleaning or replacement when necessary.

[0051] After preliminary filtration, the waste liquid enters the liquid chamber 13 of the liquid box 1. Under the action of negative pressure, the waste liquid in the liquid chamber 13 flows into the discharge pipe 7 through the one-way valve, and then flows into the liquid collecting bottle 8 through the discharge pipe 7. The liquid level sensor monitors the liquid level in the liquid collecting bottle 8 in real time. When the liquid level reaches a preset height, a signal is sent to the controller, and the controller controls the liquid pump to start and extract the waste liquid in the liquid collecting bottle 8.

[0052] When there are many impurities or particles in the waste liquid, which may cause the drainage tube 5 to be blocked, the ultrasonic sensor will detect the abnormal situation in the liquid cavity 13 and send a signal to the controller. After receiving the signal, the controller controls the cylinder 9 to start, and the output shaft of the cylinder 9 drives the air column 10 to move in the pneumatic cavity 16 to compress the gas in the pneumatic cavity 16. The compression of the gas generates a pressure wave, which is transmitted to the liquid cavity 13 through the diaphragm 17, pushing the impurities or particles in the waste liquid to move toward the puncture tube 3. At the same time, since the internal air pressure of the drainage tube 5 is reduced when it is blocked, the diaphragm 17 forms a negative pressure when it is squeezed into the liquid cavity 13, thereby driving the blockage to flow, and under the action of the pressure wave, the rubber column 18 and the inclined thorn 19 crush and cut the impurities or particles in the waste liquid, and the size of these particles is further reduced, so that it is more difficult to block the drainage tube 5. At the same time, since the blockage is being shredded, the direction in which the diaphragm 17 opens is located on the side close to the liquid cavity 13, which can squeeze and push the blockage to help the blockage flow out quickly.

[0053] The gas flow sensor can monitor the gas flow discharged from the pneumatic cavity 16 in real time. By monitoring the gas flow discharged from the pneumatic component in real time through the gas flow sensor, it can quickly capture the abnormal situation of blockage of the drainage tube 5 or the puncture tube 3. Once the gas flow is lower than the set threshold, the controller immediately issues a warning, so that medical staff can promptly discover and deal with the blockage problem, ensuring that the generation and transmission of pressure waves are stable and reliable.

[0054] The pressure sensor monitors the pressure changes in the drainage tube 5 in real time. When the pressure rises abnormally, it sends a signal to the controller. The controller adjusts the output pressure of the negative pressure aspirator 6 according to the signal of the pressure sensor to ensure that the pressure in the drainage tube 5 remains within a safe range.

[0055] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An anti-blockage drainage device for thoracic surgery, comprising a negative pressure aspirator (6) and a liquid collection bottle (8) which are interconnected, characterized in that: A liquid discharge pipe (7) is connected between the negative pressure suction device (6) and the liquid collection bottle (8); the output end of the negative pressure suction device (6) is connected to a drainage pipe (5); an end of the drainage pipe (5) away from the negative pressure suction device (6) is connected to an anti-blocking component for filtering waste liquid; an end of the anti-blocking component away from the drainage pipe (5) is connected to a puncture tube (3); and the negative pressure suction device (6) is signal-connected to a controller; The anti-blocking assembly comprises a connecting assembly, which is connected to the drainage tube (5) and the puncture tube (3), and the connecting assembly comprises a first connecting ring (11) fixedly connected to one end of the drainage tube (5) and a second connecting ring (2) connected to one end of the puncture tube (3); The anti-blocking component also includes a pneumatic component for detecting blockage of the drainage tube (5); the input end of the pneumatic component is fixedly connected to and communicated with the first connecting ring (11); the output end of the pneumatic component is fixedly connected to and communicated with the second connecting ring (2); a plurality of crushing components for crushing blockages are fixedly connected inside the pneumatic component; a gas flow sensor is provided on one side of the pneumatic component; and the gas flow sensor is connected to the controller signal.

2. The anti-blocking drainage device for thoracic surgery according to claim 1, characterized in that: A plurality of pressure sensors are installed on the inner wall of the drainage tube (5), and the pressure sensors are all connected to the controller signal.

3. The anti-blockage drainage device for thoracic surgery according to claim 2, characterized in that: A liquid level sensor is fixedly connected to the inner wall of the negative pressure suction device (6) on the side close to the liquid discharge pipe (7), a one-way valve is provided in the liquid discharge pipe (7) to only allow the negative pressure suction device (6) to flow to the liquid collection bottle (8), the liquid discharge pipe (7) is connected to a liquid pump, and both the liquid pump and the liquid level sensor are connected to the controller signal.

4. The anti-blocking drainage device for thoracic surgery according to claim 3, characterized in that: The puncture tube (3) is provided with a plurality of through holes (4).

5. The anti-blockage drainage device for thoracic surgery according to claim 4, characterized in that: A filter bag is detachably connected inside the second connecting ring (2).

6. The anti-blocking drainage device for thoracic surgery according to claim 5, characterized in that: The pneumatic assembly comprises a liquid box (1) connected between a first connecting ring (11) and a second connecting ring (2); a diaphragm (17) is fixedly connected inside the liquid box (1); the diaphragm (17) divides the inside of the liquid box (1) into a liquid chamber (13) and a pneumatic chamber (16); the crushing assembly is fixedly connected to the diaphragm (17) on one side of the liquid chamber (13); an arc plate (14) for limiting the position of the diaphragm (17) is fixedly connected inside the liquid chamber (13) and the pneumatic chamber (16); a plurality of arc plates (14) are provided on the arc plate (14) for limiting the position of the diaphragm (17); The component corresponds to the flow port (15), and the waste liquid flows from the puncture tube (3) through the liquid cavity (13) and into the drainage tube (5). The liquid box (1) is provided with an air port on one side located in the pneumatic cavity (16), and a gas column (10) is slidably connected to the air port. The end of the gas column (10) away from the pneumatic cavity (16) is fixedly connected to a gas component that provides power for the gas column (10). The gas column (10) can move with the drive of the gas component and change the air pressure value in the pneumatic cavity (16), and the diaphragm (17) can shrink and expand with the change of the air pressure value.

7. The anti-blockage drainage device for thoracic surgery according to claim 6, characterized in that: The gas component comprises a gas cylinder (9) fixedly connected to the outside of the liquid box (1), the output shaft of the gas cylinder (9) is coaxially fixedly connected to the gas column (10), and the gas cylinder (9) is connected to the controller signal.

8. The anti-blockage drainage device for thoracic surgery according to claim 7, characterized in that: The crushing components all include a rubber column (18) fixedly connected to the diaphragm (17) and located on one side of the liquid chamber (13); one end of the rubber column (18) away from the diaphragm (17) is fixedly connected to an inclined thorn (19); and the side of the liquid chamber (13) away from the diaphragm (17) is located in the movement track of the inclined thorn (19).

9. The anti-blockage drainage device for thoracic surgery according to claim 8, characterized in that: One-way ball valves (12) are provided on both sides of the liquid chamber (13) close to the first connecting ring (11) and the second connecting ring (2).

10. The anti-blockage drainage device for thoracic surgery according to claim 9, characterized in that: Ultrasonic sensors are fixedly connected to the top wall and the bottom wall of the liquid chamber (13), respectively, and the ultrasonic sensors are connected to the controller signal.

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