Anti-blocking mechanism for chest closed drainage

Abstract

The application discloses a kind of anti-blocking mechanism for closed thoracic drainage, including water seal bottle, the bottle mouth end of water seal bottle is equipped with cover, the cover is fixedly connected with connector, the connector is fixedly connected with drainage hard pipe and vent pipe, the drainage hard pipe is connected with drainage hose, this anti-blocking mechanism for closed thoracic drainage effectively solves the connection of original drainage hard pipe and drainage hose and the gravity when drainage material passes, and the soft drainage hard pipe of connection is bent, and then drainage tube is blocked, simultaneously, necrotic material precipitation, protein deposition meat-like drainage material in drainage material, after being drained into water seal bottle, the tube opening of drainage hard pipe inserted in liquid is easily blocked by meat-like drainage material, cannot normally drain, and then cause the patient to appear pneumothorax and other disease problems.

Description

Technical Field

[0001] This invention relates to the technical field of closed chest drainage, and more particularly to an anti-blockage mechanism for closed chest drainage. Background Technology

[0002] Closed thoracic drainage involves inserting one end of a drainage tube into the pleural cavity and connecting the other end to a water-seal bottle positioned lower down. This allows for the drainage of air or collection of fluid within the pleural cavity, enabling the lung tissue to reopen and restore function. As a treatment method, it is widely used for the drainage of hemothorax, pneumothorax, and empyema, as well as post-thoracotomy procedures, playing a crucial role in disease treatment. Drainage bag drainage: suitable for suction drainage, primarily used for draining pleural effusion. It includes three drainage methods: 1) The drainage tube is directly connected to a sealed material drainage bag. Because there is no water-seal bottle, negative pressure cannot be generated, therefore it is not suitable for cases where there is still air leakage in the lungs. 2) Water-seal bottle drainage: suitable for most cases, capable of draining pleural effusion, effusion, blood, and pus. 3) Water-seal bottle negative pressure suction drainage: because it increases intrathoracic negative pressure, it is suitable for cases with poor lung expansion and large residual cavities.

[0003] Currently, after performing closed chest drainage, doctors typically hang the water-seal bottle beside the bed or place it directly on the ground to lower its position. The drainage tube inside the water-seal bottle is usually a rigid tube, while the drainage tubes used for drainage are usually flexible. When the flexible tube is inserted into the rigid tube for drainage, the connection point is prone to bending due to the weight of the drainage material, leading to blockage. Furthermore, the drainage material may contain necrotic material and protein deposits, which can easily clog the opening of the rigid tube inserted into the liquid in the water-seal bottle, preventing proper drainage and potentially causing conditions such as pneumothorax. Therefore, we propose an anti-blockage mechanism for closed chest drainage. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an anti-blockage mechanism for closed chest drainage.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An anti-blockage mechanism for closed chest drainage, comprising:

[0007] A water-sealed bottle, with a cap installed at the bottle mouth, a connector fixedly connected to the cap, a drainage tube and a vent tube fixedly connected to the connector, the drainage tube communicating with a drainage hose, and a cleaning slot opened at one end of the drainage tube inside the water-sealed bottle; a protective box located inside the water-sealed bottle is also fixedly connected below the cap.

[0008] The closed thoracic drainage anti-blockage mechanism further includes: an inflation component, which includes an air bladder fixed to the top of the cap and wrapped around the connector. The air bladder contains multiple sets of first tension springs respectively fixedly connected to the top and bottom of the interior. The inflation component is housed in the protective box and connected to the air bladder. A cleaning component is also included, housed in the protective box and connected to the inflation component. This mechanism solves the problem that the connection between the drainage tube and the drainage hose is prone to bending due to the weight of the drainage material, leading to blockage. Additionally, the drainage material often contains necrotic material and protein deposits, forming fleshy drainage tissue. This tissue can easily block the opening of the drainage tube inserted into the liquid after being drained into the water-sealed bottle, preventing normal drainage and potentially causing pneumothorax or other complications.

[0009] The aforementioned anti-blockage mechanism for closed thoracic drainage includes an inflation assembly comprising a motor disposed within the protective box and fixedly connected to the bottom end of the cover. The output end of the motor is fixedly connected to a rotating shaft rotatably connected to the bottom end of the protective box. A first gear is fixedly connected to the rotating shaft. An inflation cylinder disposed within the protective box is fixedly connected to the cover. An inflation head inserted into the airbag through the cover is fixedly connected to the inflation cylinder. A threaded rod is rotatably connected to the inflation cylinder. One end of the threaded rod is fixedly connected to a second gear meshing with the first gear. A piston block that slides axially inside the inflation cylinder is threadedly connected to the threaded rod. The threaded rod is also connected to a limiting mechanism. This solves the problem that the connection between the rigid drainage tube and the flexible drainage tube is prone to bending due to the weight of the drainage material, leading to blockage of the drainage tube.

[0010] The aforementioned anti-blockage mechanism for closed chest drainage includes a limiting mechanism comprising: a fixed plate fixed inside the inflator and near the inflator head; a tapered shaft fixedly connected to the fixed plate; the tapered shaft having a tapered end near the fixed plate; a spring sleeved on the tapered shaft; one end of the spring fixedly connected to the fixed plate; and the other end of the spring fixedly connected to a compression block sleeved on the tapered shaft, which helps to ensure that the airbag remains inflated during drainage.

[0011] The aforementioned anti-blockage mechanism for closed thoracic drainage includes a cleaning component comprising: a first drive wheel fixedly connected to the outer surface of the rotating shaft, the first drive wheel being located below the first gear and driven by a first belt; the first belt being driven by a first driven wheel rotatably connected to the outside of the ventilation tube; the first driven wheel being fixedly connected to a rotating sleeve rotatably connected to the bottom of the protective box; the bottom of the rotating sleeve being fixedly connected to a connecting rod; the bottom of the connecting rod being fixedly connected to a sweeping block located below the drainage tube; and the protective box also having a pushing mechanism connected to the rotating shaft, which helps prevent the bottom of the drainage tube from being blocked in the water-sealed bottle due to fleshy drainage material.

[0012] The aforementioned anti-blockage mechanism for closed thoracic drainage includes a driving mechanism comprising: a second driving wheel fixedly connected to the outer surface of the rotating shaft; the second driving wheel being positioned below the first driving wheel and driven by a second belt; the second belt being driven by a second driven wheel rotatably connected to the bottom of the protective box; the second driven wheel being fixedly connected to a reciprocating screw rotatably connected to the bottom of the protective box; the reciprocating thread of the reciprocating screw being located at the end furthest from the protective box; and the reciprocating screw being threadedly connected to a threaded sleeve, the threaded sleeve being furthest from the bottom of the protective box. A push block is fixedly connected to one end of the protective box, and a connecting plate is fixedly connected to the bottom end of the protective box. A sliding groove is provided on the connecting plate, and a sliding block that is fixedly connected to the threaded sleeve is slidably connected through the sliding groove. Two sets of fixing blocks are fixedly connected near the bottom end of the connecting plate. The two sets of fixing blocks are rotatably connected to a cleaning block that is adapted to the cleaning groove. A second tension spring is provided on the cleaning block, one end of which is fixedly connected to it. The other end of the second tension spring is fixedly connected to the connecting plate. The cleaning block is located directly below the push block, which helps to prevent the drainage material from getting stuck at the bottom end of the drainage tube.

[0013] The aforementioned anti-blockage mechanism for closed thoracic drainage includes a hanging bracket on the outside of the water-seal bottle, which facilitates its clinical use.

[0014] In the aforementioned closed thoracic drainage anti-blockage mechanism, the entire outer surface of the protective box is provided with a waterproof layer, which is beneficial for protecting the internal components of the protective box.

[0015] In the aforementioned closed thoracic drainage anti-blockage mechanism, the connecting rod is made of metal, which helps to improve the strength of the connecting rod.

[0016] The present invention, by employing the above-mentioned technology, has the following positive effects compared with the prior art:

[0017] (1) This invention effectively solves the problem that the connection between the original drainage tube and the drainage soft tube is prone to bending due to the weight of the drainage material, leading to blockage of the drainage tube. Furthermore, the drainage material is prone to contain necrotic material and protein deposits, forming fleshy drainage tissue. This tissue can easily block the opening of the drainage tube inserted into the liquid after being drained into the water-sealed bottle, preventing normal drainage and potentially causing pneumothorax and other conditions in the patient. The motor in the protective box operates periodically, driving the rotating shaft through its output end during operation. The rotation of the cylinder causes the first gear to rotate simultaneously, which in turn drives the second gear to rotate. The second gear then drives the threaded rod, which is fixedly connected to it, to rotate in the air cylinder. As the threaded rod rotates, it causes the piston block to slide towards the compression block in the air cylinder. During the sliding process, the piston block inflates the airbag through the inflation head, causing the airbag to expand. During the expansion process, the first tension spring is stretched, resulting in the state shown in the figure. When the airbag is inflated, it can support the connection between the drainage tube and the drainage hose, thereby preventing the drainage hose from bending at the joint and causing blockage.

[0018] (2) This invention helps prevent the bottom end of the drainage tube from being blocked in the water-sealed bottle due to fleshy drainage material. When the rotating shaft rotates, it simultaneously drives the first pulley assembly, which in turn drives the rotating sleeve to rotate. As the rotating sleeve rotates, it also drives the connecting rod at the bottom to rotate. When the connecting rod rotates around the vent pipe, the sweeping block at the bottom of the connecting rod repeatedly sweeps directly below the bottom end of the drainage tube, preventing the fleshy drainage material from floating and remaining at the bottom end of the drainage tube, thus blocking the drainage liquid outlet of the drainage tube. Simultaneously, the second pulley assembly... The system operates, causing the reciprocating screw to rotate at the bottom of the protective box. As the screw rotates, it drives the threaded sleeve to move up and down in the water seal bottle. Simultaneously, the threaded sleeve drives the push block at the bottom to move up and down. When moving downwards, the push block contacts the cleaning block and pushes it, causing the cleaning block to swing downwards around the fixed block. The end of the cleaning block away from the fixed block enters the bottom of the drainage tube through the cleaning slot and swings inside the bottom of the drainage tube to prevent the drainage material from getting stuck at the bottom and causing a blockage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure inside the water-sealed bottle of the present invention.

[0021] Figure 3 This is a partial structural diagram of the inflatable component of the present invention.

[0022] Figure 4 This is a partial schematic diagram of the internal structure of the protective box of the present invention.

[0023] Figure 5 for Figure 4 Enlarged view of region A in the middle.

[0024] Figure 6 This is a schematic diagram of the internal structure of the protective box of the present invention.

[0025] Figure 7 for Figure 6 Enlarged view of region B in the middle.

[0026] Figure 8 This is a schematic diagram of the internal structure of the air cylinder of the present invention.

[0027] Figure 9 This is a schematic diagram of a partial structure of the cleaning component of the present invention.

[0028] Figure 10 This is a schematic diagram of the actuator structure of the present invention.

[0029] Figure 11 This is a schematic diagram of a partial structure below the cap of the present invention.

[0030] In the attached diagram: 1. Water seal bottle; 2. Cap; 3. Connector; 4. Drainage tube; 5. Vent tube; 6. Drainage hose; 7. Cleaning slot; 8. Protective box; 9. Inflation assembly; 10. Airbag; 11. First tension spring; 12. Cleaning assembly; 13. Motor; 14. Rotating shaft; 15. First gear; 16. Inflation cylinder; 17. Inflation head; 18. Threaded rod; 19. Second gear; 20. Piston block; 21. Limiting mechanism; 22. Fixing plate; 23. Conical shaft; 4. Spring; 25. Compression block; 26. First driving wheel; 27. First belt; 28. First driven wheel; 29. ​​Rotating sleeve; 30. Connecting rod; 31. Sweeping block; 32. Pushing mechanism; 33. Second driving wheel; 34. Second belt; 35. Second driven wheel; 36. Reciprocating screw; 37. Threaded sleeve; 38. Pushing block; 39. Connecting plate; 40. Sliding groove; 41. Sliding block; 42. Fixing block; 43. Cleaning block; 44. Second tension spring; 45. Hanger. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention. Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure inside the water-sealed bottle of the present invention; Figure 3 This is a partial structural diagram of the inflatable component of the present invention; Figure 4 This is a partial schematic diagram of the internal structure of the protective box of the present invention; Figure 5 for Figure 4 Enlarged view of region A in the middle;

[0032] Figure 6 This is a schematic diagram of the internal structure of the protective box of the present invention. Figure 7 for Figure 6 Enlarged view of region B in the middle; Figure 8 This is a schematic diagram of the internal structure of the air cylinder of the present invention; Figure 9 This is a schematic diagram of a partial structure of the cleaning component of the present invention; Figure 10 This is a schematic diagram of the actuator structure of the present invention; Figure 11 This is a partial structural diagram of the lower part of the cap of the present invention. See also: Figures 1 to 10 As shown, a preferred embodiment of a closed thoracic drainage anti-blockage mechanism includes: a water-sealed bottle 1, a cap 2 installed at the bottle mouth of the water-sealed bottle 1, a connector 3 fixedly connected to the cap 2, a drainage tube 4 and a ventilation tube 5 fixedly connected to the connector 3, the drainage tube 4 being connected to a drainage hose 6, and a cleaning slot 7 being provided at one end of the drainage tube 4 located in the water-sealed bottle 1, and a protective box 8 located in the water-sealed bottle 1 being fixedly connected below the cap 2.

[0033] In a preferred embodiment, the anti-blockage mechanism for closed thoracic drainage further includes: an inflation component 9, which includes: an airbag 10, the airbag 10 being fixed to the top of the cap 2 and wrapped around the connector 3; multiple sets of first tension springs 11 respectively fixedly connected to the top and bottom of the airbag 10; and the inflation component 9 being disposed in the protective box 8 and connected to the airbag 10; and a cleaning component 12, the cleaning component 12 being disposed in the protective box 8 and connected to the inflation component 9. In order to facilitate clinical use of the water seal bottle 1, a hanger 45 is provided on the outside of the water seal bottle 1. In addition, in order to protect the internal components of the protective box 8, the entire exterior of the protective box 8 is provided with a waterproof layer.

[0034] In a preferred embodiment, the inflation assembly 9 includes: a motor 13 disposed inside the protective box 8 and fixedly connected to the bottom end of the cover 2; a rotating shaft 14 fixedly connected to the output end of the motor 13 and rotatably connected to the bottom end of the protective box 8; a first gear 15 fixedly connected to the rotating shaft 14; an inflation cylinder 16 disposed inside the protective box 8 fixedly connected to the cover 2; an inflation head 17 inserted into the airbag 10 through the cover 2 fixedly connected to the inflation cylinder 16; a threaded rod 18 rotatably connected to the inflation cylinder 16; a second gear 19 meshing with the first gear 15 fixedly connected to one end of the threaded rod 18; a piston block 20 axially sliding inside the inflation cylinder 16 threadedly connected to the threaded rod 18; and a limit mechanism 21 connected to the threaded rod 18.

[0035] In a preferred embodiment, the limiting mechanism 21 includes: a fixing plate 22 fixed inside the air cylinder 16 and near one end of the air inflator 17; a tapered shaft 23 fixedly connected to the fixing plate 22; the end of the tapered shaft 23 near the fixing plate 22 is tapered; a spring 24 is sleeved on the tapered shaft 23; one end of the spring 24 is fixedly connected to the fixing plate 22; and the other end of the spring 24 is fixedly connected to a compression block 25 sleeved on the tapered shaft 23.

[0036] In a preferred embodiment, the cleaning assembly 12 includes: a first drive wheel 26 fixedly connected to the outer surface of the rotating shaft 14, the first drive wheel 26 being located below the first gear 15, and the first drive wheel 26 being driven by a first belt 27, the first belt 27 being driven by a first driven wheel 28 rotatably connected to the outside of the vent pipe 5, the first driven wheel 28 being fixedly connected to a rotating sleeve 29 rotatably connected to the bottom end of the protective box 8, the bottom end of the rotating sleeve 29 being fixedly connected to a connecting rod 30, the bottom end of the connecting rod 30 being fixedly connected to a sweeping block 31 located below the drainage hard tube 4, and the protective box 8 is also provided with a pushing mechanism 32 connected to the rotating shaft 14. In order to prevent the connecting rod 30 from being damaged, the connecting rod 30 is made of metal.

[0037] In a preferred embodiment, the pushing mechanism 32 includes: a second driving wheel 33 fixedly connected to the outer surface of the rotating shaft 14, the second driving wheel 33 being disposed below the first driving wheel 26, and the second driving wheel 33 being drivenly connected to a second belt 34, the second belt 34 being drivenly connected to a second driven wheel 35 rotatably connected to the bottom end of the protective box 8, the second driven wheel 35 being fixedly connected to a reciprocating screw 36 rotatably connected to the bottom end of the protective box 8, the reciprocating thread of the reciprocating screw 36 being disposed at the end away from the protective box 8, and the reciprocating screw 36 being threadedly connected to a threaded sleeve 37, the threaded sleeve 37 being located at the end away from the protective box 8. A push block 38 is fixedly connected to one end of the protective box 8. A connecting plate 39 is fixedly connected to the bottom of the protective box 8. A sliding groove 40 is provided on the connecting plate 39, and a sliding block 41 fixedly connected to the threaded sleeve 37 is slidably connected through the sliding groove 40. Two sets of fixing blocks 42 are fixedly connected near the bottom of the connecting plate 39. The two sets of fixing blocks 42 are rotatably connected to a cleaning block 43 that is adapted to the cleaning slot 7. A second tension spring 44 is provided on the cleaning block 43, one end of which is fixedly connected to it. The other end of the second tension spring 44 is fixedly connected to the connecting plate 39. The cleaning block 43 is located directly below the push block 38.

[0038] In a preferred embodiment, during closed chest drainage, a portion of saline solution is first poured into the water-seal bottle 1, ensuring the saline solution level exceeds the cleaning slot 7 at the bottom of the drainage tube 4. Then, the cap 2, along with the protective box 8 and the overall assembly, is placed over the water-seal bottle 1 to ensure its airtightness. One end of the drainage tube 6 is then inserted into the top of the drainage tube 4, while the other end is inserted into the patient's body. The water-seal bottle 1 is hung beside the bed or placed on the ground using an external hanger 45 and hook, ensuring the water-seal bottle 1 is lower than the drainage opening on the patient's body, thus facilitating normal drainage. During drainage, to prevent bending at the connection between the drainage tube 4 and the drainage tube 6, the motor 13 in the protective box 8 operates periodically. When the motor 13 operates, it drives the rotating shaft 14 through its output end to prevent bending. The protective box 8 rotates, and when the rotating shaft 14 rotates, it drives the first gear 15, which is fixedly connected to it, to rotate simultaneously. Through the meshing connection between the first gear 15 and the second gear 19, the first gear 15 drives the second gear 19 to rotate. When the second gear 19 rotates, it drives the threaded rod 18, which is fixedly connected to it, to rotate in the air cylinder 16. Through the threaded connection between the threaded rod 18 and the piston block 20, and because the piston block 20 is axially slidingly connected to the inside of the air cylinder 16, when the threaded rod 18 rotates, it drives the piston block 20 to slide towards the compression block 25 in the air cylinder 16. During the sliding process, the piston block 20 inflates the air bag 10 through the inflation head 17, causing the air bag 10 to expand. During the expansion process, it drives the first tension spring 11 to stretch, resulting in the state shown in the figure.

[0039] In a preferred embodiment, during the sliding process, the piston block 20 moves to the end of the threaded rod 18, contacts the compression block 25, and compresses the compression block 25. The compression block 25 then compresses the spring 24, causing the piston block 20 to be located at the threaded end of the threaded rod 18 and unable to move further. This keeps the airbag 10 in an inflated state. During the subsequent periodic operation of the motor 13, the airbag 10 remains in an inflated state. After the drainage operation stops, the motor 13 is reversed, causing the airbag 10 to deflate through the inflation cylinder 16 and the piston block 20. The first tension spring 11 in the airbag 10 allows the airbag 10 to fit against the cap 2. In the inflated state, the airbag 10 supports the connection between the drainage tube 4 and the drainage hose 6, thereby preventing the drainage hose 6 from bending at the joint and causing blockage.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0041] In addition to the above, the present invention also has the following embodiments:

[0042] In a further embodiment of the present invention, when the rotating shaft 14 rotates, it simultaneously drives the first driving wheel 26 to rotate. Through the transmission connection of the first belt 27, it drives the first driven wheel 28 to rotate. The first driven wheel 28 rotates on the vent pipe 5 and drives the rotating sleeve 29 at the bottom to rotate during the rotation. When the rotating sleeve 29 rotates, it drives the connecting rod 30 at the bottom to rotate simultaneously. When the connecting rod 30 rotates around the vent pipe 5, the sweeping block 31 at the bottom of the connecting rod 30 repeatedly sweeps directly below the bottom of the drainage hard tube 4 to prevent the fleshy drainage material from floating and being located at the bottom of the drainage hard tube 4, thereby blocking the drainage liquid outlet of the drainage hard tube 4.

[0043] In a further embodiment of the present invention, when the rotating shaft 14 rotates, it drives the second driving wheel 33 at the bottom of the rotating shaft 14 to rotate, and through the transmission connection of the second belt 34, it drives the second driven wheel 35 to rotate. The second driven wheel 35 then drives the reciprocating screw 36 to rotate at the bottom of the protective box 8. The reciprocating screw 36 is threadedly connected to the threaded sleeve 37. At the same time, since the sliding block 41 on the threaded sleeve 37 slides in the sliding groove 40, when the reciprocating screw 36 rotates, it drives the threaded sleeve 37 to move up and down in the water seal bottle 1. The sliding block 41, which is fixedly connected to the threaded sleeve 37, slides accordingly in the sliding groove 40 on the connecting plate 39. The threaded sleeve 37 simultaneously drives the pushing block 38 at the bottom to move up and down. When moving downward, the pushing block 38 contacts the cleaning block 43 and cleans the cleaning block 43. The pusher causes the cleaning block 43 to swing downwards around the fixed block 42. At this time, the second tension spring 44 between the connecting plate 39 and the cleaning block 43 engages in tension. When the cleaning block 43 swings, the end away from the fixed block 42 enters the bottom of the drainage tube 4 through the cleaning slot 7 and swings inside the bottom of the drainage tube 4 to prevent the drainage material from getting stuck at the bottom and causing blockage. When the threaded sleeve 37 drives the pusher block 38 to move upwards, the second tension spring 44 pulls back, pulling the cleaning block 43 back again to clean the bottom of the drainage tube 4 repeatedly. The sweeping block 31 and the cleaning block 43 will not appear at the bottom of the drainage tube 4 at the same time, and their movement trajectories are staggered to prevent collision. After the drainage work is completed, the water seal bottle 1 containing the drainage material can be discarded, while the entire assembly on the cap 2 can be retained after cleaning and reused.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A closed thoracic drainage anti-blockage mechanism, characterized in that, include: A water-sealed bottle (1) is provided with a cap (2) installed at the bottle mouth end. A connector (3) is fixedly connected to the cap (2). A drainage tube (4) and a vent tube (5) are fixedly connected to the connector (3). The drainage tube (4) is connected to a drainage hose (6). A cleaning slot (7) is provided at one end of the drainage tube (4) located inside the water-sealed bottle (1). A protective box (8) located inside the water-sealed bottle (1) is also fixedly connected below the cap (2). An inflation assembly (9) includes an airbag (10), which is fixed to the top of the cover (2). The airbag (10) is wrapped around the connector (3). The airbag (10) is provided with multiple sets of first tension springs (11) that are fixedly connected to the top and bottom of the interior respectively. The inflation assembly (9) is located inside the protective box (8) and connected to the airbag (10). The inflation assembly (9) includes: a motor (13) disposed in the protective box (8) and fixedly connected to the bottom end of the cover (2), the output end of the motor (13) is fixedly connected to a rotating shaft (14) rotatably connected to the bottom end of the protective box (8), and a first gear (15) is fixedly connected to the rotating shaft (14); A cleaning component (12) is disposed inside the protective box (8) and connected to the inflation component (9). The cleaning component (12) includes: a first drive wheel (26) fixedly connected to the outer surface of the rotating shaft (14), the first drive wheel (26) being located below the first gear (15), and the first drive wheel (26) being driven by a first belt (27). The first belt (27) is driven by a first driven wheel (28) rotatably connected to the outside of the vent pipe (5). The first driven wheel (28) is fixedly connected to a rotating sleeve (29) rotatably connected to the bottom end of the protective box (8). The bottom end of the rotating sleeve (29) is fixedly connected to a connecting rod (30). The bottom end of the connecting rod (30) is fixedly connected to a sweeping block (31) located below the drainage hard tube (4). The protective box (8) is also provided with a pushing mechanism (32) connected to the rotating shaft (14).

2. The anti-blockage mechanism for closed chest drainage according to claim 1, characterized in that, The cover (2) is fixedly connected to an air cylinder (16) disposed inside the protective box (8). The air cylinder (16) is fixedly connected to an inflation head (17) inserted into the airbag (10) through the cover (2). The air cylinder (16) is rotatably connected to a threaded rod (18). One end of the threaded rod (18) is fixedly connected to a second gear (19) that meshes with the first gear (15). The threaded rod (18) is threadedly connected to a piston block (20) that slides axially inside the air cylinder (16). The threaded rod (18) is also connected to a limit mechanism (21).

3. The anti-blockage mechanism for closed chest drainage according to claim 2, characterized in that: The limiting mechanism (21) includes: a fixing plate (22) fixed inside the air cylinder (16) and near one end of the air inflator (17), the fixing plate (22) is fixedly connected to a tapered shaft (23), the tapered shaft (23) is tapered at one end near the fixing plate (22), and a spring (24) is sleeved on the tapered shaft (23), one end of the spring (24) is fixedly connected to the fixing plate (22), and the other end of the spring (24) is fixedly connected to a compression block (25) sleeved on the tapered shaft (23).

4. The anti-blockage mechanism for closed chest drainage according to claim 3, characterized in that: The pushing mechanism (32) includes: a second driving wheel (33) fixedly connected to the outer surface of the rotating shaft (14), the second driving wheel (33) being disposed below the first driving wheel (26), and the second driving wheel (33) being driven by a second belt (34), the second belt (34) being driven by a second driven wheel (35) rotatably connected to the bottom end of the protective box (8), the second driven wheel (35) being fixedly connected by a reciprocating screw (36) rotatably connected to the bottom end of the protective box (8), the reciprocating thread of the reciprocating screw (36) being disposed at one end away from the protective box (8), and the reciprocating screw (36) being threadedly connected to a threaded sleeve (37), the threaded sleeve (37) being away from the protective box (14). One end of the protective box (8) is fixedly connected to a push block (38), and the bottom end of the protective box (8) is fixedly connected to a connecting plate (39). The connecting plate (39) has a sliding groove (40), and a sliding block (41) fixedly connected to the threaded sleeve (37) is slidably connected through the sliding groove (40). Two sets of fixing blocks (42) are fixedly connected near the bottom end of the connecting plate (39). The two sets of fixing blocks (42) are rotatably connected to a cleaning block (43) that is adapted to the cleaning slot (7). A second tension spring (44) is provided on the cleaning block (43), and the other end of the second tension spring (44) is fixedly connected to the connecting plate (39). The cleaning block (43) is located directly below the push block (38).

5. The anti-blockage mechanism for closed thoracic drainage according to claim 1, characterized in that: The water seal bottle (1) is provided with a hanging rack (45) on the outside.

6. The anti-blockage mechanism for closed chest drainage according to claim 1, characterized in that: The protective box (8) is provided with a waterproof layer on the outside.

7. The anti-blockage mechanism for closed chest drainage according to claim 1, characterized in that: The connecting rod (30) is made of metal.

Images