Anti-blocking drainage device for thoracic surgery disease treatment

Abstract

The invention relates to the technical field of medical instruments, in particular to an anti-blocking drainage device for thoracic surgery disease treatment, which comprises a treatment box, drainage tubes symmetrically arranged in the treatment box, collection boxes symmetrically arranged on the treatment box, a telescopic piece arranged in the treatment box, and a first pressing rod and a second pressing rod arranged on an output shaft of the telescopic piece. A flushing assembly is arranged between the first pressing rod and the second pressing rod; first racks are symmetrically arranged on the first pressing rod, the first racks are in sliding fit with the second pressing rod, and first extrusion assemblies are arranged on the first racks; the first racks are engaged with gears, and second extrusion assemblies are arranged on the gears; the gears are engaged with second racks, the second racks are fixedly connected with the side wall of the second pressing rod, and negative pressure assemblies are arranged on the second racks. The drainage tube is subjected to multiple extrusion through the first extrusion assembly and the second extrusion assembly, solid particles or tissue fragments in effusion of an affected part of a patient are effectively prevented from blocking the drainage tube, and it is ensured that the drainage process is unobstructed.

Description

Technical Field

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

[0002] Currently, tubeless thoracoscopic surgery has been developed for thoracic surgery, eliminating the need for a postoperative chest tube. However, chest tube placement is still routinely recommended, especially for patients with spontaneous pneumothorax, pleural effusion, and empyema. One or two chest tubes are routinely placed, depending on the presence of air, fluid, and exudate in the pleural cavity, to remove air and collect fluid, allowing the patient's lungs to expand and restore function.

[0003] Some existing anti-blocking drainage devices have relatively simple structural designs and lack effective anti-blocking mechanisms. During the drainage process, impurities, blood clots or fibrin deposition in the effusion may cause blockage inside the drainage tube or drainage device, affecting the drainage effect.

[0004] In summary, some existing anti-blocking drainage devices lack an effective anti-blocking mechanism, which may affect the drainage effect and has become a difficult problem that needs to be solved urgently in this field. Therefore, it is necessary to propose an anti-blocking drainage device for the treatment of thoracic surgical diseases. Summary of the Invention

[0005] To solve the above problems, the present invention provides an anti-blocking drainage device for the treatment of thoracic surgical diseases. Through the multiple periodic squeezing operations performed on the drainage tube by the first squeezing component and the second squeezing component, solid particles or tissue fragments in the fluid accumulated in the patient's affected area are effectively prevented from clogging the drainage tube, thereby achieving the purpose of anti-blocking and ensuring that the drainage process is unobstructed.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: A blockage-proof drainage device for the treatment of thoracic surgical diseases, comprising a treatment box and a controller, drainage tubes are symmetrically and detachably connected to the two inner side walls of the treatment box, a collection box is symmetrically and fixedly connected to the bottom of the treatment box, a telescopic part is fixedly connected to the inner bottom wall of the treatment box, the controller is used to control the extension and retraction of the telescopic part output shaft, a first pressing rod is fixedly connected to the telescopic part output shaft and is slidably fitted with a second pressing rod, and a flushing component for flushing the accumulated fluid inside the drainage tube is provided between the first pressing rod and the second pressing rod.

[0007] The first rack is symmetrically fixedly connected to the side of the first pressing rod close to the output shaft of the telescopic part. The first rack passes through the second pressing rod and slides horizontally with the second pressing rod. The first rack is provided with a first extrusion assembly for squeezing the drainage tube at one end away from the first pressing rod. The first extrusion assembly is located on one side of the flushing assembly.

[0008] The first racks are all meshed with gears, and the gears are all rotatably matched with the bottom wall of the processing box. The gears are all provided with a second extrusion assembly for further extruding the drainage tube, and the second extrusion assembly is located on one side of the first extrusion assembly adjacent to it.

[0009] The gears are all engaged with a second rack, and the second racks are all fixedly connected to the side walls of the second pressing rod. The second racks are all provided with a negative pressure component at one end away from the second pressing rod for sucking the accumulated fluid inside the drainage tube through negative pressure. The negative pressure components are all located on the side of the second extrusion component adjacent to it.

[0010] The technical principles of the above solution are as follows:

[0011] After the medical staff installs the drainage tube on the patient's affected part and the inner wall of the drainage device respectively, they control the reciprocating motion of the telescopic part output shaft through the controller, so that it drives the first pressing rod to reciprocate, the first pressing rod drives the first rack to reciprocate, the first rack drives the gear to reciprocate, the gear drives the second rack to reciprocate, and the second rack drives the second pressing rod to reciprocate.

[0012] During this process, when the first extrusion rod and the second extrusion rod move toward each other, the flushing assembly operates to flush the accumulated fluid inside the drainage tube. The first rack drives the first extrusion assembly to squeeze the drainage tube during the reciprocating motion. The gear drives the second extrusion assembly to further periodically squeeze the drainage tube during the reciprocating rotation to adjust the flow rate of the accumulated fluid inside the drainage tube. The second rack drives the negative pressure assembly to operate during the reciprocating motion to suck the accumulated fluid inside the drainage tube, and discharge the sucked accumulated fluid into the collection box through the negative pressure assembly.

[0013] The above scheme has the following beneficial effects:

[0014] 1. The present invention effectively prevents solid particles or tissue fragments in the patient's affected part of the fluid from clogging the drainage tube through multiple periodic squeezing operations performed by the first squeezing component and the second squeezing component, thereby achieving the purpose of anti-blocking and ensuring unobstructed drainage.

[0015] 2. In the present invention, through the design of the flushing component, the anti-blocking drainage device can flush the inside of the drainage tube while squeezing the drainage tube, further removing impurities that may block the drainage tube, not only clearing the drainage tube, but also keeping the inside of the drainage tube clean.

[0016] 3. This invention uses a negative pressure assembly to aspirate the accumulated fluid within the drainage tube, which not only improves drainage efficiency but also further reduces tube blockage. The design of the negative pressure assembly allows the accumulated fluid to be quickly drawn out of the drainage tube, thereby improving the drainage efficiency of the drainage tube for the patient's affected area and reducing the time that the accumulated fluid remains in the patient's affected area.

[0017] Furthermore, the flushing assembly includes air bags symmetrically fixedly connected to the bottom wall of the treatment box, the interior of the air bags are filled with physiological saline, and the air bags are connected to the adjacent drainage tubes.

[0018] Beneficial effect: When the airbag is squeezed, the physiological saline in the airbag is squeezed into the adjacent drainage tube, immediately flushing the inside of the drainage tube, so that it can quickly remove impurities and residues in the drainage tube and prevent blockage.

[0019] Furthermore, the first extrusion assembly includes an extrusion block fixedly connected to an end of the first rack away from the first pressing rod, and a buffer layer is fixedly connected to the surface of the extrusion block.

[0020] Beneficial Effect: Driven by the first rack, the squeezing block can directly squeeze the drainage tube, effectively preventing solid particles or tissue fragments in the accumulated fluid inside the drainage tube from clogging the tube. This squeezing action ensures the drainage tube is unobstructed and improves drainage efficiency.

[0021] Furthermore, the second extrusion assembly includes a cam fixedly connected to the top of the gear, and the drainage tube is located in the movement path of the cam.

[0022] Beneficial Effects: Driven by the gears, the cam rotates. Its unique profile design periodically squeezes the drainage tube within its path during rotation. This squeezing action helps further remove accumulated fluid and impurities from the drainage tube, preventing blockage. Simultaneously, the second squeezing assembly, working in synergy with the first, creates a dual squeezing mechanism, further improving the patency of the drainage tube.

[0023] Furthermore, the negative pressure assembly includes a negative pressure box fixedly connected to the bottom wall of the processing box, the inner wall of the negative pressure box is laterally slidably fitted with a negative pressure plate, the second rack is away from one end of the second pressing rod, passes through the side wall of the negative pressure box, extends to the interior of the negative pressure box, and is fixedly connected to the side wall of the negative pressure plate, the side wall of the negative pressure box is connected to a negative pressure one-way valve, the negative pressure box is connected to the drainage pipe adjacent to it through the negative pressure one-way valve, the bottom of the negative pressure box is connected to a collection one-way valve, the negative pressure box is connected to the collection box adjacent to it through the collection one-way valve.

[0024] Beneficial Effect: When the second rack slides, driven by the second pressing rod, it drives the negative pressure plate to move laterally within the negative pressure box, thereby changing the volume within the negative pressure box, creating negative pressure. This negative pressure one-way valve draws the accumulated fluid in the drainage tube into the negative pressure box. This negative pressure suction mechanism can efficiently and quickly remove accumulated fluid from the patient's affected area, reducing the retention time of the fluid.

[0025] Furthermore, a liquid level sensor is fixedly connected to the bottom wall of the collection box, and the controller is electrically connected to the medical staff terminal. The controller is used to receive the liquid level information collected by the liquid level sensor and send the liquid level information to the medical staff terminal.

[0026] Beneficial Effects: The liquid level sensor can accurately monitor the fluid level in the collection box in real time, thereby reflecting the amount of fluid discharged from the patient's affected area. This monitoring method is more accurate and reliable than traditional manual observation, helping medical staff to understand the patient's drainage status in a timely manner.

[0027] Furthermore, the airbags are connected to a liquid inlet one-way valve and a liquid outlet one-way valve, and the airbags are connected to a liquid storage tank through the liquid inlet one-way valve. The liquid storage tank has a liquid injection port, and the bottom of the liquid storage tank is fixedly connected to the top of the treatment tank. The liquid storage tank is also filled with physiological saline, and the airbags are connected to the adjacent drainage tube through the liquid outlet one-way valve.

[0028] Beneficial effect: When the saline solution in the airbag is reduced due to flushing, the saline solution in the reservoir can be automatically replenished into the airbag through the liquid inlet one-way valve, thereby ensuring the continuity and stability of the flushing process and maintaining the consistency of the flushing effect.

[0029] Furthermore, a plurality of fixing frames are symmetrically fixedly connected to the inner side wall of the processing box.

[0030] Beneficial effects: The fixing frame provides a stable support and fixing point for the drainage tube in the treatment box, ensuring the stable position of the drainage tube in the treatment box and preventing the drainage tube from being damaged due to displacement.

[0031] Furthermore, transparent observation panels are fixedly connected to the side walls of the collection box.

[0032] Beneficial effects: The transparent observation panel allows medical staff to visually observe the liquid level of the accumulated fluid in the collection box, so that medical staff can timely understand the drainage status of the patient's affected part, reduce direct contact between medical staff and the accumulated fluid in the patient's affected part, and protect medical staff.

[0033] Furthermore, a non-slip pad is fixedly connected to the bottom of the collection box.

[0034] Beneficial effect: The anti-slip mat can increase the friction between the collection box and the ground or placement surface, effectively preventing the collection box from sliding due to accidental collision or vibration during use, and ensuring the stable position of the collection box.

[0035] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is an axonometric diagram of the anti-blocking drainage device for treating thoracic surgical diseases according to the present invention.

[0037] Figure 2This is an axonometric diagram of the internal structure of the processing box in the anti-blocking drainage device for treating thoracic surgical diseases of the present invention.

[0038] Figure 3 It is a side sectional schematic diagram of the negative pressure box in the anti-blocking drainage device for treating thoracic surgical diseases of the present invention.

[0039] Figure 4 It is a side sectional schematic diagram of the collection box in the anti-blocking drainage device for treating thoracic surgical diseases of the present invention.

[0040] The figure marks in the drawings of the specification include: 1. processing box; 2. fixing frame; 3. collection box; 4. liquid level sensor; 5. first pressing rod; 6. second pressing rod; 7. air bag; 8. liquid inlet one-way valve; 9. liquid outlet one-way valve; 10. liquid storage tank; 11. first rack; 12. extrusion block; 13. gear; 14. cam; 15. second rack; 16. negative pressure box; 17. negative pressure plate; 18. negative pressure one-way valve; 19. collection one-way valve; 20. observation plate. DETAILED DESCRIPTION

[0041] The following is further described in detail through specific implementation methods:

[0042] Example 1:

[0043] As attached Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown: A blockage-proof drainage device for treating thoracic surgical diseases, including a processing box 1 and a controller. Several fixing frames 2 are symmetrically welded on the inner wall of the processing box 1. Drainage tubes are symmetrically and detachably engaged on the two inner walls of the processing box 1. A collection box 3 is symmetrically integrally formed at the bottom of the processing box 1. A liquid level sensor 4 is fixedly connected to the inner bottom wall of the collection box 3 by screws. The controller is electrically connected to the medical staff terminal. The controller is used to receive the liquid level information collected by the liquid level sensor 4 and send the liquid level information to the medical staff terminal.

[0044] A telescopic member is bolted to the bottom wall of the treatment box 1. A controller controls the extension and retraction of the telescopic member's output shaft. A first pressing rod 5 is bolted to the output shaft and slidably engages a second pressing rod 6. A flushing assembly for flushing fluid accumulated within the drainage tube is located between the first pressing rod 5 and the second pressing rod 6. In this embodiment, the telescopic member is an electric telescopic rod.

[0045] The flushing assembly includes airbags 7 symmetrically fixed and bonded to the inner bottom wall of the treatment tank 1. Each airbag 7 is filled with saline solution and connected to the adjacent drainage tube. Each airbag 7 is connected to a liquid inlet check valve 8 and a liquid outlet check valve 9. Each airbag 7 is connected to a liquid reservoir 10 through the liquid inlet check valve 8. The liquid reservoir 10 has a liquid inlet. The bottom of the liquid reservoir 10 is integrally formed with the top of the treatment tank 1. The liquid reservoir 10 is also filled with saline solution. Each airbag 7 is connected to the adjacent drainage tube through the liquid outlet check valve 9.

[0046] The first rack 11 is symmetrically welded to one side of the first pressing rod 5 close to the output shaft of the electric telescopic rod. The first rack 11 passes through the second pressing rod 6 and slides horizontally with the second pressing rod 6. The first rack 11 is provided with a first extrusion assembly for squeezing the drainage tube at one end away from the first pressing rod 5. The first extrusion assembly is located on one side of the flushing assembly.

[0047] The first extrusion assembly includes an extrusion block 12 integrally formed at an end of the first rack 11 away from the first pressing rod 5 , and a buffer layer is fixedly bonded to the surface of the extrusion block 12 .

[0048] The first racks 11 are all meshed with gears 13, and the gears 13 are all rotatably matched with the inner bottom wall of the processing box 1. The gears 13 are all provided with a second extrusion assembly for further extruding the drainage tube, and the second extrusion assembly is located on the side of the first extrusion assembly adjacent to it.

[0049] The second extrusion assembly includes a cam 14 integrally formed on the top of the gear 13 , and the drainage tube is located in the movement path of the cam 14 .

[0050] The gears 13 are all meshed with second racks 15, and the second racks 15 are all welded to the side walls of the second pressing rod 6. The second racks 15 are all provided with a negative pressure component at one end away from the second pressing rod 6 for sucking the accumulated fluid inside the drainage tube through negative pressure. The negative pressure components are all located on the side of the second extrusion component adjacent to it.

[0051] The negative pressure assembly includes a negative pressure box 16 integrally formed on the inner bottom wall of the processing box 1, and the inner wall of the negative pressure box 16 is laterally slidably fitted with a negative pressure plate 17. The second rack 15 extends through the side wall of the negative pressure box 16 away from the second pressing rod 6 at one end to the interior of the negative pressure box 16 and is welded to the side wall of the negative pressure plate 17. The side wall of the negative pressure box 16 is connected to a negative pressure one-way valve 18, and the negative pressure box 16 is connected to the adjacent drainage pipe through the negative pressure one-way valve 18. The bottom of the negative pressure box 16 is connected to a collection one-way valve 19, and the negative pressure box 16 is connected to the adjacent collection box 3 through the collection one-way valve 19.

[0052] The specific implementation process is as follows: after the medical staff fills the liquid storage tank 10 with physiological saline, they install the two ends of the drainage tube (not shown in the figure) on the patient's affected part and the inner wall of the treatment box 1 respectively, so that the drainage tube on the inner wall of the treatment box 1 is located in several adjacent fixing frames 2, and ensure that the airbag 7 and the negative pressure box 16 are connected to the drainage tube.

[0053] Medical staff controls the reciprocating motion of the output shaft of the electric telescopic rod through the controller, so that it drives the first pressing rod 5 to reciprocate, and the first pressing rod 5 drives all the first racks 11 to reciprocate, so that the first racks 11 respectively drive the adjacent gears 13 to rotate back and forth, and the gears 13 respectively drive the adjacent second racks 15 to reciprocate, and all the second racks 15 together drive the second pressing rods 6 to reciprocate.

[0054] like Figure 2 As shown, during this process, the first pressing rod 5 and the second pressing rod 6 move in opposite directions. When the first pressing rod 5 and the second pressing rod 6 move toward each other, the airbag 7 is squeezed by the first and second pressing rods 5 and 6, and the saline solution inside is transferred through the liquid outlet check valve 9 to the adjacent drainage tube, thereby cleaning the drainage tube. When the first pressing rod 5 and the second pressing rod 6 move away from each other, the airbag 7 gradually returns to its initial state and the saline solution in the liquid reservoir 10 is filled into the airbag 7 through the liquid inlet check valve 8.

[0055] During its reciprocating motion, the first rack 11 also drives the adjacent extrusion block 12 to reciprocate with it, squeezing the drainage tube. Simultaneously, during its reciprocating rotation, the gear 13 also drives the adjacent cam 14 to reciprocate, further periodically squeezing the drainage tube. This cam, in conjunction with the extrusion block 12, periodically adjusts the flow rate of the accumulated fluid within the drainage tube, thereby unblocking the drainage tube through changes in the flow rate of the accumulated fluid.

[0056] The second rack 15 also drives the adjacent negative pressure plate 17 to reciprocate during the reciprocating motion. Figure 3 As shown, when the negative pressure plate 17 moves to the left, the space to its right gradually increases, so that negative pressure is formed on the right side of the negative pressure plate 17, and the accumulated liquid inside the drainage tube is sucked into the negative pressure box 16 through the negative pressure one-way valve 18, and the accumulated liquid inside the negative pressure box 16 is discharged to the collection box 3 through the collection one-way valve 19.

[0057] like Figure 3As shown, when the viscosity of the accumulated liquid inside the negative pressure box 16 is too high and the collecting one-way valve 19 is blocked, thanks to the reciprocating motion of the negative pressure plate 17, when the negative pressure plate 17 moves to the right, the space to its right gradually decreases and the air pressure gradually increases, and the accumulated liquid in the negative pressure box 16 can be squeezed into the collecting box 3 through the collecting one-way valve 19, reducing the blockage of the collecting one-way valve 19, thereby realizing the unblocking operation of the collecting one-way valve 19.

[0058] Medical staff sets the liquid level threshold of the liquid level sensor 4 through the controller. The liquid level sensor 4 monitors the liquid level information in the collection box 3 in real time and sends the liquid level information to the controller in real time. When the liquid level information reaches the liquid level threshold, the controller sends the liquid level information to the medical staff terminal. At this time, the medical staff goes to the patient's location to treat the patient's affected part.

[0059] The present invention effectively prevents solid particles or tissue fragments in the fluid accumulated in the patient's affected area from clogging the drainage tube through multiple periodic squeezing operations performed by the first squeezing component and the second squeezing component. It also cooperates with the flushing component and the negative pressure component to achieve the purpose of anti-blocking and ensure that the drainage process is unobstructed.

[0060] Example 2:

[0061] As attached Figure 4 As shown, the difference from embodiment 1 is that a transparent observation panel 20 is embedded and installed on the side wall of the collection box 3.

[0062] The specific implementation process is as follows: after the collection of the fluid accumulated in the patient's affected part is completed, the medical staff can directly observe the specific situation of the fluid accumulation through the observation plate 20, so as to better judge the specific situation of the patient's affected part.

[0063] Example 3:

[0064] The difference from Example 2 is that a non-slip pad is fixedly bonded to the bottom of the collection box 3 .

[0065] The specific implementation process is as follows: when the anti-blocking drainage device is impacted by external force, the anti-slip pad can effectively reduce the possibility of its displacement, thereby reducing the possibility of the drainage tube being pulled and causing harm to the patient.

[0066] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A thoracic surgical disease treatment anti-blocking drainage device, comprising a treatment box (1), two inner side walls of the treatment box (1) are symmetrically and detachably connected to drainage tubes, and the bottom of the treatment box (1) is symmetrically and fixedly connected to a collection box (3), characterized in that: The processing box (1) further comprises a controller, wherein a telescopic member is fixedly connected to the inner bottom wall thereof, and the controller is used to control the telescopic movement of an output shaft of the telescopic member, wherein a first pressing rod (5) is fixedly connected to the output shaft of the telescopic member and a second pressing rod (6) is slidably engaged therewith, and a flushing assembly for flushing the accumulated fluid inside the drainage tube is provided between the first pressing rod (5) and the second pressing rod (6); A first rack (11) is symmetrically fixedly connected to one side of the first pressing rod (5) close to the output shaft of the telescopic member, and the first rack (11) passes through the second pressing rod (6) and slides with the second pressing rod (6) in a transverse manner. A first extrusion assembly for performing an extrusion operation on the drainage tube is provided at one end of the first rack (11) away from the first pressing rod (5), and the first extrusion assembly is located on one side of the flushing assembly; The first racks (11) are all meshed with gears (13), and the gears (13) are all rotatably matched with the inner bottom wall of the processing box (1). The gears (13) are all provided with a second extrusion assembly for further extruding the drainage tube, and the second extrusion assembly is located on one side of the first extrusion assembly adjacent thereto; The gears (13) are all meshed with second racks (15), and the second racks (15) are all fixedly connected to the side walls of the second pressing rods (6). The ends of the second racks (15) away from the second pressing rods (6) are all provided with negative pressure components for sucking the accumulated fluid inside the drainage tube by negative pressure, and the negative pressure components are all located on the side of the second extrusion components adjacent thereto.

2. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 1, characterized in that: The flushing assembly comprises air bags (7) symmetrically fixedly connected to the inner bottom wall of the treatment box (1); the interior of the air bags (7) is filled with physiological saline; and the air bags (7) are communicated with the adjacent drainage tubes.

3. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 2, characterized in that: The first extrusion assembly comprises an extrusion block (12) fixedly connected to an end of the first rack (11) away from the first pressing rod (5), and a buffer layer is fixedly connected to the surface of the extrusion block (12).

4. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 3, characterized in that: The second extrusion assembly comprises a cam (14) fixedly connected to the top of the gear (13), and the drainage tube is located in the movement path of the cam (14).

5. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 4, characterized in that: The negative pressure assembly includes a negative pressure box (16) fixedly connected to the inner bottom wall of the processing box (1), the inner side wall of the negative pressure box (16) is laterally slidably matched with a negative pressure plate (17), the second rack (15) is away from the second pressing rod (6) and extends through the side wall of the negative pressure box (16) to the inside of the negative pressure box (16) and is fixedly connected to the side wall of the negative pressure plate (17), the side wall of the negative pressure box (16) is connected to a negative pressure one-way valve (18), the negative pressure box (16) is connected to the adjacent drainage pipe through the negative pressure one-way valve (18), the bottom of the negative pressure box (16) is connected to a collection one-way valve (19), and the negative pressure box (16) is connected to the adjacent collection box (3) through the collection one-way valve (19).

6. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 5, characterized in that: A liquid level sensor (4) is fixedly connected to the inner bottom wall of the collection box (3), and the controller is electrically connected to the medical staff terminal. The controller is used to receive liquid level information collected by the liquid level sensor (4) and send the liquid level information to the medical staff terminal.

7. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 6, characterized in that: The airbags (7) are connected to a liquid inlet check valve (8) and a liquid outlet check valve (9). The airbags (7) are connected to a liquid storage tank (10) through the liquid inlet check valve (8). The liquid storage tank (10) is provided with a liquid injection port. The bottom of the liquid storage tank (10) is fixedly connected to the top of the treatment tank (1). The liquid storage tank (10) is also filled with physiological saline. The airbags (7) are connected to the adjacent drainage tube through the liquid outlet check valve (9).

8. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 7, characterized in that: A plurality of fixing frames (2) are symmetrically fixedly connected to the inner side wall of the processing box (1).

9. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 8, characterized in that: The side walls of the collection box (3) are fixedly connected with transparent observation panels (20).

10. The anti-blocking drainage device for treating thoracic surgical diseases according to claim 9, characterized in that: The bottom of the collection box (3) is fixedly connected with an anti-skid pad.

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