Peritonitis pleural effusion drainage device

Abstract

The invention belongs to the technical field of effusion drainage, and provides a peritonitis pleural effusion drainage device which comprises an effusion storage box and a puncture needle, the puncture needle is connected with the effusion storage box through a drainage tube, the interior of the effusion storage box is divided into an upper cavity and a lower cavity, and the cavity located on the lower side is divided into a first containing cavity and a second containing cavity which are arranged left and right; the liquid storage tank is provided with a first connecting pipe and a second connecting pipe which are respectively communicated with the first placing cavity and the second placing cavity, and the first connecting pipe and the second connecting pipe are respectively connected with a test tube and a flushing structure for extracting antibiotics; by arranging the speed regulating structure, adverse effects on a patient caused by too high ascites flow speed are avoided; by arranging the fixing cylinder, the end of the drainage tube and the liquid storage bag can be conveniently and firmly installed, and the situation that the liquid storage bag falls off during shaking, and environmental pollution is caused is avoided; a liquid outlet cover is arranged, so that medical workers can conveniently and quantitatively take out ascites for detection.

Description

Technical Field

[0001] The invention relates to the technical field of fluid drainage, and in particular to a peritonitis pleural effusion drainage device. Background Art

[0002] Peritonitis can cause pleural effusion, which is a common clinical symptom characterized by pathological fluid accumulation in the pleural cavity. The pleural cavity is a potential gap between the visceral and parietal pleura. There are 5 to 15 ml of liquid in the pleural cavity of a normal person, which acts as a lubricant during breathing. There are 500 to 1000 ml of liquid formed and absorbed in the pleural cavity every day. Any reason that causes an increase in the production of liquid in the pleural cavity or a decrease in absorption can cause pleural effusion. For pleural effusion, the most common clinical treatment is pleural lavage. The main purpose is to flush the pleural cavity, reduce bacterial growth in the pleural cavity, culture pleural fluid, and observe the efficacy. However, the existing effusion drainage device usually only includes a drainage tube and a fluid storage bag. The ascites can only be drained by inserting the needle of the drainage tube into the patient's abdominal cavity. It has no function of flushing the pleural cavity and cannot reduce bacterial growth in the pleural cavity. If the purpose of flushing is to be achieved, the needle needs to be reinserted, which increases the patient's pain. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a peritonitis pleural effusion drainage device, which solves the problems raised in the above-mentioned background technology.

[0004] The technical solution of the present invention is as follows:

[0005] A peritonitis pleural effusion drainage device comprises a liquid storage tank and a puncture needle, wherein the puncture needle and the liquid storage tank are connected via a drainage tube.

[0006] The liquid storage tank is divided into two chambers, the chamber located at the lower side is divided into a first placement chamber and a second placement chamber arranged on the left and right, and the liquid storage tank is provided with a first connecting pipe and a second connecting pipe respectively connected to the first placement chamber and the second placement chamber, and the first connecting pipe and the second connecting pipe are respectively connected to a test tube and a flushing structure for extracting antibiotics;

[0007] The upper ends of the first connecting tube and the second connecting tube are connected to the operation switching structure through a hose; the operation switching structure is provided with a flow regulating structure for regulating the flow of the drainage tube.

[0008] Furthermore, the flushing structure includes a branch pipe, a piston cylinder, a worm, a worm wheel, a rotating wheel and a piston. One end of the branch pipe is connected to the second connecting pipe, and the other end of the branch pipe is connected to the piston cylinder. The piston moves left and right in the piston cylinder. The outer end of the piston is hinged on the connecting rod at the end of the rotating wheel. The rotating wheel is rotatably connected to a position of the worm wheel that deviates from the center of the circle. The worm wheel is meshed with a vertical worm.

[0009] Furthermore, two one-way valves opening in the same direction are arranged on the second connecting pipes on the upper and lower sides of the branch pipe.

[0010] Further, the operation switching structure includes a straight shell, a blocking block slidably connected to the straight shell, and a connecting column rotatably connected to both ends of the blocking block and passing through the straight shell, a first spring is arranged between the two side surfaces of the blocking block and the inner side wall of the straight shell, and a pull ring is fixedly connected to the end of the connecting column.

[0011] Furthermore, openings are provided on both sides of the bottom end of the straight shell relative to the initial position of the blocking block.

[0012] Furthermore, a connecting tube is fixedly connected to the upper end of the straight shell, a connecting plate is fixedly connected inside the connecting tube, a plug is arranged on the connecting plate, and a flow regulating structure is arranged inside the connecting tube.

[0013] Furthermore, the flow regulating structure includes a step plate and a threaded rod, the step plate is arranged on both sides of the insert tube, and the outer side of the step plate is fixedly connected with a threaded rod that penetrates the connecting tube.

[0014] Furthermore, the liquid storage tank is provided with an observation window at a position relative to the first placement cavity and the second placement cavity.

[0015] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: by setting up a flushing structure, the chest cavity can be flushed to reduce the bacterial growth in the chest cavity; by connecting the first placement cavity and the second placement cavity with the operation switching structure, flushing can be performed after the patient has extracted the effusion, avoiding repeated needle insertion and reducing the patient's pain; by setting a connected flow regulating structure on the operation switching structure, the speed of extracting the effusion and the speed of the water flow for flushing the chest cavity can be adjusted to reduce the patient's discomfort symptoms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a peritonitis pleural effusion drainage device of the present invention;

[0017] Figure 2 is a cross-sectional schematic diagram of a liquid storage tank;

[0018] Figure 3 It is a partial enlarged view of A;

[0019] Figure 4 Switching structures for operations;

[0020] Figure 5 It is a partial enlarged view of B;

[0021] Figure 6 It is a flow regulating structure;

[0022] In the figure: 1, liquid storage tank, 2, operation switching structure, 201, straight shell, 202, blocking block, 203, connecting column, 204, first spring, 205, pull ring, 206, opening, 31, connecting cylinder, 32, rotating cover, 33, cannula, 34, flow regulating structure, 341, step plate, 342, nut, 343, threaded rod, 344, T-shaped cylinder, 35, connecting plate, 4, hose, 5, drainage tube, 6, puncture needle, 7, handle, 8. Observation window, 9. Opening and closing door, 10. Shelf, 11. Partition, 12. First placement chamber, 13. Second placement chamber, 14. First connecting pipe, 15. Second connecting pipe, 16. Branch pipe, 17. Piston cylinder, 18. Worm, 19. Worm gear, 20. Rotating wheel, 21. Piston, 23. Support seat, 24. Connecting bucket, 25. Ball blocking, 26. Fourth spring, 27. Third connecting pipe, 28. Test tube, 29. Sealing cover, 30. Water outlet faucet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0024] See also Figure 1-6 A peritonitis pleural effusion drainage device comprises a liquid storage tank 1 and a puncture needle 6, wherein the puncture needle 6 is connected to the liquid storage tank 1 through a drainage tube 5.

[0025] The interior of the liquid storage tank 1 is divided into two upper and lower chambers by a horizontal layer plate 10. The chamber located on the lower side is divided into a first placement chamber 12 and a second placement chamber 13 arranged on the left and right by a vertical partition 11. The first placement chamber 12 stores the extracted pleural effusion. A water outlet faucet 30 connected to the first placement chamber 12 is provided on the side wall of the liquid storage tank 1 to facilitate the discharge of the effusion. The second placement chamber 13 stores liquid antibiotics. An observation window 8 is provided on the front side of the liquid storage tank 1 relative to the position of the first placement chamber 12 and the second placement chamber 13 to facilitate the observation of the height of the effusion and the antibiotics for timely operation. The liquid storage tank 1 is provided with a first connecting pipe 14 and a second connecting pipe 15 respectively connected to the first placement chamber 12 and the second placement chamber 13. Circular holes are provided on the upper surface of the liquid storage tank 1 and at positions corresponding to the layer plate 10. The upper ends of the first connecting tube 14 and the second connecting tube 15 are fixed on the opening of the liquid storage tank 1. The bottom end of the first connecting tube 14 passes through the layer plate 10 through the corresponding opening on the layer plate 10 and slightly protrudes from the lower side of the layer plate 10. The lower end of the second connecting tube 15 extends into the second placement cavity 13 through the corresponding opening on the layer plate 10, and the lower end of the second connecting tube 15 extends to the bottom wall of the second placement cavity 13. When not in use, physiological saline can be added from the first connecting tube 14 to rinse the first placement cavity 12. An opening for adding antibiotics is provided at a position of the liquid storage tank 1 relative to the second placement cavity 13, and a sealing plug is provided at the opening. When in use, The pleural effusion is drained to the first connecting tube 14 through the puncture needle and the drainage tube, and the second connecting tube 15 extracts antibiotics to flush the pleural cavity; in order to ensure that the gas in the first placement cavity 12 and the second placement cavity 13 can be discharged during the process of extracting the effusion and flushing the pleural cavity, so as to achieve the effect of smooth use, the layer plate 10 is provided with air holes relative to the positions of the first placement cavity 12 and the second placement cavity 13, and the side walls of the liquid storage tank 1 on the upper side of the layer plate 10 corresponding to the positions of the first placement cavity 12 and the second placement cavity 13 are also provided with air holes, and the air holes are covered with a waterproof and breathable membrane; in order to prevent the extracted effusion from flowing back, an openable and closable sealing cover 29 is hinged at the bottom end of the first connecting tube 14, and the sealing cover 29 adopts an eccentric structure, which uses gravity eccentricity The first connecting tube 14 and the second connecting tube 15 are respectively connected with a test tube 28 and a flushing structure for extracting antibiotics. A placement plate fixed to the side wall of the liquid storage tank 1 is provided on the left side of the first connecting tube 14. A plurality of holes for placing the test tube 28 are provided on the placement plate. The upper end of the test tube 28 is threadedly connected to the test tube cover. The middle position of the upper surface of the test tube cover is a covering film. A plug is plugged into the film. Several plugs are connected in parallel. Several capillary holes are provided at the end of the plug. When the plug is not connected to the test tube 28, the effusion will not flow out from the plug. When draining pleural effusion, the plug is inserted into the test tube 28 with a negative pressure inside, and the effusion automatically flows into the test tube 28.The liquid storage tank 1 is provided with an opening and closing door relative to the test tube 28; the plug is connected to the first connecting tube 14 through the third connecting tube 27, and by connecting the test tube 28 to the first connecting tube 14, it is convenient for medical staff to collect and test the pleural effusion; by providing a flushing structure, after the pleural effusion is extracted, the patient's part can be flushed in time to reduce the bacterial growth in the pleural cavity;

[0026] The upper ends of the first connecting tube 14 and the second connecting tube 15 are connected to the operation switching structure 2 through the hose 4; the operation switching structure 2 is provided with a flow regulating structure 34 for regulating the flow of the drainage tube 5; by connecting the first placement cavity 12 and the second placement cavity 13 with the operation switching structure 2, the patient can be flushed after the effusion is extracted, thereby avoiding repeated needle insertion and reducing the patient's pain; by providing a connected flow regulating structure 34 on the operation switching structure 2, the speed of extracting the effusion and the speed of flushing the chest cavity can be adjusted to reduce the patient's discomfort symptoms.

[0027] like Figure 2 As shown, the flushing structure includes a branch pipe 16, a piston cylinder 17, a worm 18, a worm wheel 19, a rotating wheel 20, a piston 21 and a second spring 22. One end of the branch pipe 16 is connected to the second connecting pipe 15, and the other end of the branch pipe 16 is fixedly connected to the piston cylinder 17 connected thereto. The piston 21 moves left and right in the piston cylinder 17. The outer end of the piston 21 is hinged to the connecting rod at the end of the rotating wheel 20. The rotating wheel 20 is rotatably connected to the position of the worm wheel 19 deviating from the center of the circle. The worm wheel 19 is meshed with the vertical worm 18.

[0028] Two one-way valves that open in the same direction are arranged on the second connecting pipe 15 on the upper and lower sides of the branch pipe 16, and the one-way valves are arranged in the connecting bucket 24. The upper side wall of the connecting bucket 24 is fixedly connected to one end of the fourth spring 26, and the other end of the fourth spring 26 is fixedly connected to a blocking ball 25. The connecting bucket 24 is a funnel-shaped structure with a straight cylinder section at the upper end and a conical cylinder section at the lower end. A cross bar is designed at the top of the straight cylinder section. The upper end of the fourth spring 26 is fixed on the cross bar. The diameter of the blocking ball 25 is larger than the diameter of the lower end opening of the conical cylinder section, thereby ensuring that the blocking ball 25 can block the connecting bucket 24.

[0029] Specifically, the tapered branch pipe 16 is fixedly connected to the side wall of the second connecting pipe 15 located on the upper side of the layer plate 10, and a plug hole is provided on the left side of the tapered piston cylinder 17 for fixing one side of the branch pipe 16; the connecting rod arranged on the left side of the rotating wheel 20 is hinged to the right end of the tapered piston 21, and the center of the rotating wheel 20 is rotatably connected to the eccentric side of the worm wheel 19 through the shaft (that is, the rotating shaft is fixed at a position on the worm wheel 19 at a certain distance from the center of the worm wheel 19), and the worm wheel 19 is rotatably connected to the connecting shaft of the side wall of the liquid storage tank 1, and the upper and lower ends of the worm 18 are rotatably connected to the support seat 23 on the top wall of the liquid storage tank 1 and the upper surface of the layer plate 10, and the worm 18 is provided with a handle 7 that passes through the upper surface of the liquid storage tank 1;

[0030] By rotating the handle 7, the worm 18 drives the worm wheel 19 to mesh and rotate, and the worm wheel 19 drives the rotating wheel 20 to rotate at the same time, and the connecting rod pushes the piston 21 to move left and right; when sucking antibiotics, when the piston 21 moves to the right, the space in the cavity of the piston cylinder 17 becomes larger, generating negative pressure, and the blocking ball 25 of the one-way valve on the lower side is sucked up, and at the same time the fourth spring 26 at the lower side is compressed, so that the connecting bucket 24 at the lower side is in an open state, while the fourth spring 26 at the upper side remains unchanged, and the connecting bucket 24 is in a closed state, and the piston 21 continues to move to the right, and the liquid antibiotics in the second placement chamber 13 are sucked into the space of the second connecting pipe 15 between the two one-way valves, and the straightened part of the liquid antibiotics enters the left part of the piston cylinder 17 space; then rotate the handle 7 in the opposite direction, the piston 21 moves to the left side of the piston cylinder 17, so that the space on the left side of the piston cylinder 17 is squeezed, and the space on the left side of the piston cylinder 17 and the space of the second connecting pipe 15 between the two one-way valves are squeezed, and under the pressure and the force of the fourth spring 26 on the lower side, the blocking ball 25 on the lower side moves downward to block the connecting bucket 24 on the lower side, and at the same time, the blocking ball 25 on the upper side is lifted up, the fourth spring 26 on the upper side is compressed, and the connecting bucket 24 on the upper side is opened, and the antibiotics are pressed out into the drainage tube 5 by relying on the piston 21. In the process of continuously rotating the handle 7 forwards and backwards, the liquid antibiotics in the second placement cavity 13 are continuously pressed into the drainage tube 5, and finally enter the chest cavity through the puncture needle 6.

[0031] like Figure 4 As shown, the operation switching structure 2 includes a straight shell 201, a block 202 slidably connected to the straight shell 201, and a connecting column 203 rotatably connected to both ends of the block 202 and passing through the straight shell 201, a first spring 204 is provided between the two side surfaces of the block 202 and the inner side wall of the straight shell 201, and a pull ring 205 is fixedly connected to the end of the connecting column 203.

[0032] Specifically, the straight shell 201 is in a horizontal state, and the length of the block 202 is one third of the length of the inner cavity of the straight shell 201. In the initial state, the block 202 is in the middle position, and the openings 206 are located on both sides of the block 202. When the block 202 moves to the left or right, the opening 206 on one side is blocked, and the opening 206 on the other side is in an open state; the length of the connecting column 203 is twice the length of the block 202, and the end of the connecting column 203 close to the block 202 is provided with an outer Thread, the inner wall of the through hole of the one-shaped shell 201 for the connecting column 203 to pass through is provided with an internal thread engaged with the external thread on the connecting column 203. It can be understood that the aperture of the through hole is larger than the diameter of the connecting column 203, and the outer diameter of the external thread on the connecting column 203 matches the through hole. When the blocking block 202 is moved to one end of the one-shaped shell 201 by pulling the connecting column 203, the connecting column 203 can be threadedly connected to the one-shaped shell 201 by rotating the corresponding connecting column 203 to fix the blocking block 202;

[0033] When it is necessary to adjust the straight shell 201 to be connected with the first placement cavity 12, the pleural effusion is extracted, and the connecting column 203 on the left is pushed (or the connecting column 203 on the right is pulled) to move the block 202 to the right until it cannot be pushed anymore, and the opening on the right is in a closed state, and then the connecting column 203 on the right is rotated to fix it in the through hole. When it is necessary to adjust the straight shell 201 to be connected with the second placement cavity 13, the operation of extracting antibiotics is opposite to the above operation.

[0034] like Figure 4 and Figure 5 As shown, the upper end of the straight shell 201 is fixedly connected with a connecting tube 31, and the straight shell 201 is communicated with the connecting tube 31. A connecting plate 35 is fixedly connected inside the connecting tube 31, and the connecting plate 35 is oblate. A cannula 33 is arranged on the connecting plate 35, and the inner diameter of the cannula 33 is the same as the outer diameter of the drainage tube 5. In order to prevent impurities from entering the connecting plate 35, a rotating cover 32 is arranged at the upper end of the connecting tube 31, and the position where the rotating cover 32 conflicts with the connecting tube 31 is connected by a rotating shaft. A circular hole with the same diameter as the drainage tube 5 is arranged on the upper surface of the rotating cover 32 for the drainage tube 5 to pass through, and a flow regulating structure 34 is arranged inside the connecting tube 31. By arranging the connected flow regulating structure 34 on the operation switching structure 2, the speed of extracting the effusion and the speed of the water flow for flushing the chest cavity can be adjusted to reduce the patient's discomfort symptoms.

[0035] like Figure 6 As shown, the flow regulating structure 34 includes a step plate 341, a threaded rod 343 and a nut 342. The step plate 341 is arranged on both sides of the insert tube 33. The outer side of the step plate 341 is fixedly connected with a threaded rod 343 that penetrates the connecting tube 31.

[0036] Specifically, the number of the step plate 341, the threaded rod 343 and the nut 342 is two, and the two step plates 341 are symmetrically arranged on both sides of the cannula 33; the step plate 341 includes a first vertical plate portion, a horizontal plate portion and a second vertical plate portion, wherein the lower end of the first vertical plate portion is fixed to one end of the horizontal plate portion, the upper end of the second vertical plate portion is fixed to the other end of the horizontal plate portion, and the horizontal plate portion is located on the upper side of the upper end of the cannula 33, and the second vertical plate portion is located on both sides of the cannula 33. When the second vertical plate portion contacts the outer side wall of the cannula 33, the two first vertical plate portions contact each other, and at this time, the drainage tube 5 is squeezed by the two first vertical plate portions and approaches a closed state;

[0037] Specifically, a T-shaped cylinder 344 is fixed to the outer wall of the connecting cylinder 31, and the nut 342 is rotatably connected to the T-shaped cylinder 344. The end of the threaded rod 343 passes through the connecting cylinder 3 from the side wall of the connecting cylinder 31 and the T-shaped cylinder 344, and the threaded rod 343 is in smooth contact with the connecting cylinder 31 and the T-shaped cylinder 344, and the nut 342 is threadedly connected to the threaded rod 343. In order to ensure that the threaded rod 343 moves laterally along the direction perpendicular to the side wall of the connecting cylinder 31 when the nut 342 is rotated, the outer wall of the threaded rod 343 is provided with a strip groove along its length direction, and a protrusion that can be embedded in the strip groove is provided on the inner side wall of the through hole of the connecting cylinder 31 for the threaded rod 343 to pass through or the inner side wall of the T-shaped cylinder 344, so that the threaded rod 343 is circumferentially limited by the cooperation of the protrusion and the strip groove, so as to prevent the threaded rod 343 from being unable to move laterally due to the rotation when the nut 342 is rotated.

[0038] When in the initial state, the first vertical plate portion on the upper side does not contact the drainage tube 5 and does not squeeze the drainage tube 5. At this time, the flow rate in the drainage tube 5 is the largest; by rotating the two nuts 342, the two threaded rods 343 are driven to move toward each other, thereby causing the two step plates 341 to move toward each other, and the distance between the two step plates 341 gradually decreases. After the drainage tube 5 is squeezed, the flow rate inside becomes smaller and smaller; when the nuts 342 on both sides cannot rotate, the drainage tube 5 is completely closed. When the flow rate of the drainage tube 5 needs to be increased, it is only necessary to rotate the two nuts 342 in the opposite direction.

[0039] The working process of a peritonitis pleural effusion drainage device provided by the present invention is as follows:

[0040] Before work: open the opening and closing door 9, insert the test tube 28; pour antibiotics into the second placement cavity 13; plug and assemble the various parts through the hose 4 and the drainage tube 5;

[0041] When extracting pleural effusion, pinch the pull ring 205 on the left side with your fingers and push it to the right until it can no longer be pushed, rotate the connecting column 203 to cooperate with the thread in the through hole to fix it, and then the first placement cavity 12 is connected to the puncture needle 6; adjust the flow regulating structure 34 according to the patient's response, and observe the effusion in the first placement cavity 12 at all times during the extraction process;

[0042] After the extraction is completed, the chest cavity is flushed and disinfected. The pull ring 205 on the right side is pinched with fingers and pushed to the left until it can no longer be pushed. The connecting column 203 is rotated to cooperate with the thread in the through hole to fix it. At this time, the second placement cavity 13 is connected to the puncture needle 6. The handle 7 is turned to extract antibiotics into the puncture needle 6. The flow regulating structure 34 is adjusted according to the patient's response.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A peritonitis pleural effusion drainage device, comprising a fluid storage tank (1) and a puncture needle (6), wherein the puncture needle (6) is connected to the fluid storage tank (1) via a drainage tube (5), characterized in that: The liquid storage box (1) is divided into two chambers, an upper chamber and an lower chamber. The chamber located at the lower side is divided into a first placement chamber (12) and a second placement chamber (13) arranged on the left and right. The liquid storage box (1) is provided with a first connecting pipe (14) and a second connecting pipe (15) respectively connecting the first placement chamber (12) and the second placement chamber (13). The first connecting pipe (14) and the second connecting pipe (15) are respectively connected to a test tube (28) and a flushing structure for extracting antibiotics. The upper ends of the first connecting tube (14) and the second connecting tube (15) are connected to the operation switching structure (2) via a hose (4); the operation switching structure (2) is provided with a flow regulating structure (34) for regulating the flow of the drainage tube (5).

2. The peritonitis pleural effusion drainage device according to claim 1, characterized in that: The flushing structure comprises a branch pipe (16), a piston cylinder (17), a worm (18), a worm wheel (19), a rotating wheel (20) and a piston (21); one end of the branch pipe (16) is connected to the second connecting pipe (15); the other end of the branch pipe (16) is connected to the piston cylinder (17); the piston (21) moves left and right in the piston cylinder (17); the outer end of the piston (21) is hinged to a connecting rod at the end of the rotating wheel (20); the rotating wheel (20) is rotatably connected to a position of the worm wheel (19) deviating from the center of the circle; the worm wheel (19) is meshed with a vertically arranged worm (18).

3. The peritonitis pleural effusion drainage device according to claim 2, characterized in that: Two one-way valves opening in the same direction are arranged on the second connecting pipe (15) at the upper and lower sides of the branch pipe (16).

4. The peritonitis pleural effusion drainage device according to claim 1, characterized in that: The operation switching structure (2) comprises a straight shell (201), a block (202) slidably connected to the straight shell (201), and a connecting column (203) rotatably connected to both ends of the block (202) and penetrating the straight shell (201), a first spring (204) is arranged between the two side surfaces of the block (202) and the inner side wall of the straight shell (201), and a pull ring (205) is fixedly connected to the end of the connecting column (203).

5. The peritonitis pleural effusion drainage device according to claim 4, characterized in that: Openings (206) are provided on both sides of the bottom end of the straight shell (201) relative to the initial position of the blocking block (202).

6. The peritonitis pleural effusion drainage device according to claim 4, characterized in that: The upper end of the straight shell (201) is fixedly connected to a connecting tube (31), a connecting plate (35) is fixedly connected inside the connecting tube (31), a plug tube (33) is arranged on the connecting plate (35), and a flow regulating structure (34) is arranged inside the connecting tube (31).

7. The peritonitis pleural effusion drainage device according to claim 6, characterized in that: The flow regulating structure (34) comprises a step plate (341) and a threaded rod (343); the step plate (341) is arranged on both sides of the insertion tube (33); and the outer side of the step plate (341) is fixedly connected to a threaded rod (343) that passes through the connecting tube (31).

8. The peritonitis pleural effusion drainage device according to claim 4, characterized in that: The liquid storage box (1) is provided with an observation window (8) at a position relative to the first placement cavity (12) and the second placement cavity (13).

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