A heart department nursing effusion drainage extraction device
By using a dilution mechanism and a servo motor-driven auger to extract accumulated fluid, combined with the partitioned design inside the protective tube, the problems of easy clogging and inconvenient cleaning of drainage equipment in cardiology are solved, achieving stable drainage and thorough disinfection of accumulated fluid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FOURTH MILITARY MEDICAL UNIVERSITY
- Filing Date
- 2026-03-09
- Publication Date
- 2026-06-05
AI Technical Summary
Existing cardiology drainage equipment is prone to clogging and is difficult to disassemble, clean, and disinfect, leading to inconvenience in operation.
The dilution mechanism delivers diluent through the inlet pipe to reduce flow resistance. Combined with a servo motor driving the auger to rotate and extract the accumulated liquid, in-situ disinfection is achieved through the partitioned design of the cleaning and regulating chambers inside the protective tube, without the need for disassembly.
It achieves stable drainage and thorough disinfection of accumulated fluid, reduces the risk of blockage, and improves the convenience and safety of operation.
Smart Images

Figure CN122141031A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to a drainage and extraction device for effusion in cardiology nursing. Background Technology
[0002] Cardiology, or cardiovascular medicine, is a clinical department set up by the general internal medicine department of hospitals at all levels to diagnose and treat cardiovascular diseases. The diseases treated include angina pectoris, hypertension, sudden death, arrhythmia, heart failure, premature beats, irregular heartbeats, myocardial infarction, cardiomyopathy, myocarditis, acute myocardial infarction, and other cardiovascular diseases.
[0003] In the treatment of cardiovascular diseases, drainage devices are essential treatment equipment, playing a vital role in draining fluid accumulated under the skin or in the pleural cavity. However, the drainage devices currently in use generally only employ simple gravity drainage methods, which often result in drainage tube blockage during the drainage process (pleural effusion contains relatively viscous fluid, which can cause blockage of the drainage tube during drainage). Drainage devices are also difficult to disassemble, clean, and disinfect, causing great inconvenience to medical staff and patients. Summary of the Invention
[0004] The purpose of this invention is to provide a drainage and extraction device for effusion in cardiology nursing. A dilution mechanism precisely delivers a diluent to the effusion area via an inlet pipe, infusion line, and outlet to pre-dilute viscous effusion and reduce flow resistance. In conjunction with the extraction mechanism, a second servo motor drives an auger to rotate, generating active extraction power. The auger's spiral structure pushes the effusion and breaks up flocculent impurities. Furthermore, a third servo motor in the auxiliary components drives a sprocket and chain to move a squeezing roller to compress the guide tube, forcibly cleaning residual effusion and impurities. This dual anti-clogging system ensures continuous and stable drainage. Simultaneously, the partitioned design of the regulating and cleaning chambers within the protection tube, combined with the connection structure between the cleaning line and the cleaning port of the cleaning chamber in the cleaning mechanism, allows for in-situ introduction of disinfectant to thoroughly rinse and disinfect the core components without disassembly, reducing operational burden. The baffle of the sealing mechanism is inserted through a port and positioned by a limiting block and limiting groove, quickly sealing the first perforation and isolating the two chambers, improving the safety and thoroughness of cleaning and disinfection.
[0005] To achieve the above objectives, the present invention provides a cardiac nursing effusion drainage and aspiration device, including a protective tube, an adjustment chamber and a cleaning chamber inside the protective tube, a first perforation between the adjustment chamber and the cleaning chamber, a drainage tube inside the adjustment chamber, one end of the drainage tube passing through the first perforation and inserted into the cleaning chamber, and a suction tube connected to the drainage tube, a second perforation on the side wall of the protective tube, the other end of the suction tube passing through the second perforation, an aspiration mechanism and a dilution mechanism on the drainage tube, and a cleaning mechanism and a sealing mechanism on the protective tube.
[0006] Preferably, the inner wall of the regulating cavity is provided with a sliding groove, one sliding groove is provided with a one-way lead screw, the other sliding groove is provided with a guide rod, the side wall of the drainage tube is provided with a slider, one slider is sleeved on the one-way lead screw, the other slider is sleeved on the guide rod, the inside of the protective tube is provided with a first groove, the first groove is provided with a first servo motor, and the output shaft of the first servo motor is connected to the one-way lead screw.
[0007] Preferably, the extraction mechanism includes an auger disposed inside the drainage tube. A second groove is provided at the other end of the drainage tube, and a second servo motor is disposed inside the second groove. The output shaft of the second servo motor is connected to the auger. An extraction port is provided on the inner wall of the drainage tube, and an extraction pipeline is provided inside the drainage tube. The extraction port is connected to the extraction pipeline, and a guide component is connected at the other end of the extraction pipeline. An auxiliary component is provided on the side wall of the drainage tube, and the auxiliary component is in contact with the guide component.
[0008] Preferably, the guide assembly includes a fixed frame connected to the side wall of the drainage tube, a guide tube is provided inside the fixed frame, one end of the guide tube is connected to the extraction tube, a guide groove is provided on the side wall of the protective tube, the other end of the guide tube passes through the guide groove, and the auxiliary component contacts the outer wall of the guide tube.
[0009] Preferably, the auxiliary component includes a support frame connected to the side wall of the drainage tube. A first sprocket is inserted at one end of the support frame, and a second sprocket is inserted at the other end of the support frame. A chain is sleeved between the first sprocket and the second sprocket. A connecting frame is provided on the chain, and a squeezing roller is provided at the bottom of the connecting frame. The squeezing roller is in contact with the outer wall of the guide tube.
[0010] Preferably, a support plate is provided on the bottom surface of the support frame, the bottom surface of the support plate is in contact with the inner wall of the chain, and a third servo motor is provided at one end of the side wall of the support frame, the output shaft of the third servo motor is connected to the first sprocket.
[0011] Preferably, the dilution mechanism includes an inlet pipe, an outlet is provided at one end of the inner wall of the drainage pipe, a delivery pipe is provided inside the drainage pipe, one end of the delivery pipe is connected to the outlet, the other end of the delivery pipe is connected to the inlet pipe, and the other end of the inlet pipe passes through the protective pipe.
[0012] Preferably, the cleaning mechanism includes a cleaning pipeline with a protective tube inside, and a cleaning port is provided on the inner wall of the cleaning chamber, which is connected to the cleaning pipeline.
[0013] Preferably, the sealing mechanism includes a baffle, a socket is provided at one end of the protective tube, the socket is connected to the first through hole, the baffle is inserted into the socket, a limit block is provided on the side wall of the baffle, a limit groove is opened on the inner wall of the socket, and the limit block is inserted into the limit groove.
[0014] Preferably, a first sealing gasket is provided at the first perforation, and the inner wall of the first sealing gasket is in contact with the outer wall of the suction tube. A second sealing gasket is provided at the second perforation, and the inner wall of the second sealing gasket is in contact with the outer wall of the drainage tube. A partition plate is provided inside the adjustment cavity to prevent the tubing inside the adjustment cavity from becoming disordered.
[0015] Therefore, this invention employs the aforementioned cardiac nursing effusion drainage and extraction device. A dilution mechanism precisely delivers diluent to the effusion area via an inlet pipe, infusion line, and outlet, pre-diluting the viscous effusion to reduce flow resistance. This, combined with the second servo motor driving the auger in the extraction mechanism to generate active extraction power, pushes the effusion and breaks up flocculent impurities using the auger's spiral structure. Furthermore, a third servo motor in the auxiliary components drives a sprocket and chain to squeeze the guide tube, forcibly cleaning residual effusion and impurities. This dual anti-clogging system ensures continuous and stable drainage. Simultaneously, the partitioned design of the regulating and cleaning chambers within the protection tube, along with the connection structure between the cleaning line and the cleaning port in the cleaning mechanism, allows for in-situ introduction of disinfectant to thoroughly rinse and disinfect the core components without disassembly, reducing operational burden. The baffle of the sealing mechanism, inserted through a port and positioned by a limiting block and groove, quickly seals the first perforation and isolates the two chambers, improving the safety and thoroughness of cleaning and disinfection.
[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the cardiac nursing fluid drainage and extraction device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the protective tube in this invention; Figure 3 This is a schematic diagram of the internal structure of the protective tube and the drainage tube in this invention; Figure 4 This is a schematic diagram of the specific structure of the cleaning mechanism in this invention; Figure 5 This is a schematic diagram of the specific structure of the dilution mechanism in this invention; Figure 6 This is a schematic diagram of the specific structure of the extraction port and extraction pipeline in this invention; Figure 7 This is a schematic diagram of the specific structure of the auxiliary components in this invention; Figure 8 This is an enlarged view of point A in this invention.
[0018] Figure Labels 1. Protective tube; 2. Adjustment chamber; 3. Cleaning chamber; 4. First perforation; 5. Drainage tube; 6. Suction tube; 7. Second perforation; 8. Slide groove; 9. One-way lead screw; 10. Guide rod; 11. Slider; 12. First groove; 13. First servo motor; 14. Screwdriver; 15. Second groove; 16. Second servo motor; 17. Extraction port; 18. Extraction pipeline; 19. Fixing frame; 20. Guide tube; 21. Guide groove; 22. Support frame; 23. First sprocket; 24. Second sprocket; 25. Chain; 26. Connecting frame; 27. Extrusion roller; 28. Support plate; 29. Third servo motor; 30. Inlet pipe; 31. Outlet; 32. Infusion line; 33. Cleaning line; 34. Cleaning port; 35. Baffle; 36. Insert; 37. Limiting block; 38. Limiting groove; 39. First sealing gasket; 40. Second sealing gasket; 41. Divider plate. Detailed Implementation
[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0021] like Figures 1-8 As shown, a cardiology nursing fluid drainage and aspiration device includes a protective tube 1, an adjustment chamber 2 at the rear end of the protective tube 1, and a cleaning chamber 3 at the front end of the protective tube 1. A first perforation 4 is provided between the adjustment chamber 2 and the cleaning chamber 3, and the first perforation 4 is connected to both the adjustment chamber 2 and the cleaning chamber 3. A drainage tube 5 is inserted into the adjustment chamber 2 and moves along the adjustment chamber 2. One end of the drainage tube 5 passes through the first perforation 4 and is inserted into the cleaning chamber 3. A suction tube 6 is installed at the front end of the drainage tube 5. The entire device is connected to an external power source and is started and stopped by a control switch.
[0022] The front end of the suction tube 6 is integrally formed with a sharp part, and the side wall of the suction tube 6 is provided with a suction hole. The front side wall of the protective tube 1 is provided with a second perforation 7, which is connected to the interior of the cleaning chamber 3. The front end of the suction tube 6 passes through the second perforation 7. The drainage tube 5 is provided with an extraction mechanism and a dilution mechanism, and the protective tube 1 is provided with a cleaning mechanism and a sealing mechanism.
[0023] The inner wall of the regulating cavity 2 has sliding grooves 8 on both sides. A one-way screw 9 is inserted into the left sliding groove 8 and is rotatably connected to the protective tube 1. A guide rod 10 is fixed inside the right sliding groove 8. The side wall of the drainage tube 5 is integrally formed with a slider 11. The left slider 11 has a threaded hole that matches the one-way screw 9, and the right slider 11 has a through hole that matches the guide rod 10. The left slider 11 is sleeved on the one-way screw 9 through the threaded hole, and the right slider 11 is sleeved on the guide rod 10 through the through hole. The left slider 11 slides along the sliding groove 8 through the threaded hole and the one-way screw 9. Thus, the drainage tube 5 slides along the regulating cavity 2 through the cooperation between the slider 11 and the one-way screw 9.
[0024] The protective tube 1 has a first groove 12 inside, and a first servo motor 13 is installed inside the first groove 12. The output shaft of the first servo motor 13 is connected and fixed to the one-way lead screw 9.
[0025] The extraction mechanism includes an auger 14, which is inserted into the drainage tube 5 and is rotatably connected to the drainage tube 5. A second groove 15 is provided at the rear end of the drainage tube 5, and a second servo motor 16 is installed inside the second groove 15. The output shaft of the second servo motor 16 is connected and fixed to the auger 14. Six extraction ports 17 are evenly spaced around the axis of the drainage tube 5 on the inner wall of the rear end of the drainage tube 5. An extraction pipeline 18 is installed inside the rear end of the drainage tube 5. The front section of the extraction pipeline 18 is a ring structure, and the extraction ports 17 are connected to the extraction pipeline 18. The rear section of the extraction pipeline 18 is a straight structure. A guide component is connected to the rear end of the extraction pipeline 18. An auxiliary component is installed on the side wall of the drainage tube 5, and the auxiliary component is in contact with the guide component.
[0026] The guiding assembly includes a fixing frame 19, which is installed on the side wall of the drainage tube 5 near the outlet of the extraction tube 18. A guiding tube 20 is installed inside the fixing frame 19. One end of the guiding tube 20 is connected to the extraction tube 18. A guide groove 21 is provided on the side wall of the protective tube 1. The other end of the guiding tube 20 passes through the guide groove 21 and is connected to an external extraction pump. The other end of the extraction pump is connected to a liquid collection device. The auxiliary component is in contact with the outer wall of the guiding tube 20.
[0027] The auxiliary components include a support frame 22, the front end of which is installed on the side wall of the drainage tube 5. A first sprocket 23 is inserted into the front end of the support frame 22 and is rotatably connected to the support frame 22. A second sprocket 24 is inserted into the rear end of the support frame 22. A chain 25 is sleeved between the first sprocket 23 and the second sprocket 24. Four connecting frames 26 are installed on the chain 25. A squeezing roller 27 is inserted into the bottom end of the connecting frame 26 and is rotatably connected to the connecting frame 26. The squeezing roller 27 is in contact with the outer wall of the guide tube 20.
[0028] A support plate 28 is welded to the bottom surface of the support frame 22. The bottom surface of the support plate 28 is in contact with the inner wall of the chain 25. A third servo motor 29 is installed at the front end of the side wall of the support frame 22. The output shaft of the third servo motor 29 is connected and fixed to the first sprocket 23.
[0029] The dilution mechanism includes an inlet pipe 30. The inner wall of the drainage pipe 5 has three sets of outlets 31 at its front end. Each set of outlets 31 has six outlets evenly spaced around the axis of the drainage pipe 5. An infusion pipeline 32 is installed inside the drainage pipe 5. The front section of the infusion pipeline 32 is a ring structure, and the outlets 31 are connected to the infusion pipeline 32. The rear section of the infusion pipeline 32 is a straight structure. The rear end of the infusion pipeline 32 is connected to the inlet pipe 30. Preferably, the inlet pipe 30 is a spiral flexible tube. The other end of the inlet pipe 30 passes through the protective pipe 1 and is connected to an external infusion pump. The other end of the infusion pump is connected to a diluent storage device.
[0030] The cleaning mechanism includes a cleaning pipe 33, which is installed inside the protective pipe 1 at the front end and corresponds to the cleaning chamber 3. The inner wall of the cleaning chamber 3 is evenly provided with five sets of cleaning ports 34. Each set of cleaning ports 34 is evenly provided with six ports at intervals around the axis of the protective pipe 1. The cleaning pipe 33 has a ring structure and the cleaning ports 34 are connected to the cleaning pipe 33. The other end of the cleaning pipe 33 is connected to an external infusion pump, and the other end of the infusion pump is connected to a cleaning water tank.
[0031] The sealing mechanism includes a baffle 35. The front end of the side wall of the protective tube 1 is provided with an insertion port 36. The extraction port is connected to the first through hole 4. The baffle 35 is inserted into the insertion port 36 and slides along the insertion port 36. A limiting block 37 is welded to the side wall of the baffle 35. A limiting groove 38 is opened on the inner wall of the insertion port 36. The limiting groove 38 is connected to the insertion port 36. The limiting block 37 is inserted into the limiting groove 38 and slides along the limiting groove 38.
[0032] A first sealing gasket 39 is installed at the first perforation 4, and the inner wall of the first sealing gasket 39 is in contact with the outer wall of the suction tube 6. A second sealing gasket 40 is provided at the second perforation 7, and the inner wall of the second sealing gasket 40 is in contact with the outer wall of the drainage tube 5. A partition plate 41 is installed at the rear end of the inner cavity 2 to prevent the pipeline inside the adjustment cavity 2 from becoming disordered.
[0033] Working principle: When the cardiology nursing fluid drainage and extraction device provided in this application is working, the first servo motor 13 drives the one-way screw 9 in the adjustment chamber 2 to rotate, and the right guide rod 10 limits the movement, so that the drainage tube 5 slides along the slide groove 8 through the side wall slider 11, which drives the front suction tube 6 to adjust its position. The sharp part of the suction tube 6 is precisely inserted into the fluid accumulation area and contacts the fluid through the suction hole. After the device is started, the dilution mechanism is connected to the external infusion pump and diluent storage device through the inlet pipe 30. The diluent is accurately delivered from the outlet 31 at the front end of the inner wall of the drainage pipe 5 to the liquid accumulation area through the external infusion pump and infusion pipeline 32, pre-diluting the viscous liquid to reduce flow resistance. At the same time, the extraction mechanism and the external extraction pump are started. The second servo motor 16 drives the auger 14 in the drainage pipe 5 to rotate. The auger 14 pushes the accumulated liquid to the rear end of the drainage pipe 5 through the spiral structure, and at the same time breaks up the flocculent impurities in the accumulated liquid. The accumulated liquid enters the extraction pipeline 18 through the extraction port 17 evenly distributed at the rear end of the drainage pipe 5, and is then transported to the accumulated liquid collection device through the guide pipe 20 of the guide assembly and the external extraction pump. The auxiliary components operate synchronously. The third servo motor 29 drives the first sprocket 23 inside the support frame 22 to rotate. The chain 25 drives the second sprocket 24 to move together, so that the squeezing roller 27 installed on the connecting frame 26 on the chain 25 rolls and squeezes against the outer wall of the guide tube 20. With the support plate 28 supporting the chain 25, the residual liquid and impurities in the guide tube 20 are forcibly cleaned, and a dual anti-blocking system is constructed to ensure continuous and stable drainage. When cleaning and disinfection are required after drainage, the first servo motor 13 drives the one-way screw 9 in the adjustment chamber 2 to rotate, and with the right guide rod 10 limiting the position, the drainage tube 5 slides along the slide groove 8 through the side wall slider 11, which drives the front end suction tube 6 to be stored in the interior of the cleaning chamber 3. The baffle 35 of the sealing mechanism is inserted through the side wall insertion port 36 of the protection tube 1. With the help of the limiting block 37 and the limiting groove 38 on the inner wall of the insertion port 36, the first perforation 4 between the adjustment chamber 2 and the cleaning chamber 3 is quickly sealed, isolating the two chambers to improve operational safety. Subsequently, the cleaning unit connects to an external infusion pump and a cleaning water tank through the cleaning pipeline 33. The disinfection medium is sprayed out from the cleaning ports 34 evenly distributed on the inner wall of the cleaning chamber 3 through the annular cleaning pipeline 33, which thoroughly rinses and disinfects the suction tube 6 without disassembly, reducing the operational burden. During cleaning, the second servo motor 16 drives the auger 14 inside the drainage tube 5 to rotate. The auger 14 pushes the disinfection medium to the rear end of the drainage tube 5 through the spiral structure to clean the residual substances inside the drainage tube 5. At the same time, the external extraction pump is started to extract the disinfection medium after cleaning. The disinfection medium enters the extraction pipeline 18 through the extraction ports 17 evenly distributed at the rear end of the drainage tube 5, and is then transported to the liquid collection device through the guide tube 20 of the guide assembly and the external extraction pump to complete the overall cleaning of the device.
[0034] The device as a whole ensures the sealing of each cavity through the first sealing gasket 39 and the second sealing gasket 40. The partition plate 41 in the regulating cavity 2 prevents the pipeline from being messed up. The whole device controls the start and stop of each servo motor through the control switch, realizing the integrated and efficient operation of liquid drainage, anti-blocking, cleaning and disinfection.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
Claims
1. A device for draining and extracting effusion in cardiology nursing, characterized in that: The device includes a protective tube, which has an adjustment chamber and a cleaning chamber inside. A first perforation is provided between the adjustment chamber and the cleaning chamber. A drainage tube is provided inside the adjustment chamber. One end of the drainage tube passes through the first perforation and is inserted into the cleaning chamber. A suction tube is connected to the drainage tube. A second perforation is provided on the side wall of the protective tube. The other end of the suction tube passes through the second perforation. An extraction mechanism and a dilution mechanism are provided on the drainage tube. A cleaning mechanism and a sealing mechanism are provided on the protective tube.
2. The cardiac effusion drainage and extraction device according to claim 1, characterized in that: The inner wall of the regulating cavity is provided with a sliding groove. One sliding groove is provided with a one-way lead screw, and the other sliding groove is provided with a guide rod. The side wall of the drainage tube is provided with a slider. One slider is sleeved on the one-way lead screw, and the other slider is sleeved on the guide rod. The inside of the protective tube is provided with a first groove. The first groove is provided with a first servo motor. The output shaft of the first servo motor is connected to the one-way lead screw.
3. The cardiac effusion drainage and extraction device according to claim 1, characterized in that: The extraction mechanism includes an auger disposed inside the drainage tube. A second groove is provided at the other end of the drainage tube, and a second servo motor is disposed inside the second groove. The output shaft of the second servo motor is connected to the auger. An extraction port is provided on the inner wall of the drainage tube, and an extraction pipeline is provided inside the drainage tube. The extraction port is connected to the extraction pipeline. A guide assembly is connected to the other end of the extraction pipeline. An auxiliary assembly is provided on the side wall of the drainage tube, and the auxiliary assembly is in contact with the guide assembly.
4. The cardiac effusion drainage and extraction device according to claim 3, characterized in that: The guiding component includes a fixed frame connected to the side wall of the drainage tube. A guiding tube is provided inside the fixed frame. One end of the guiding tube is connected to the extraction tube. A guide groove is provided on the side wall of the protective tube. The other end of the guiding tube passes through the guide groove. The auxiliary component is in contact with the outer wall of the guiding tube.
5. A cardiac effusion drainage and extraction device according to claim 4, characterized in that: The auxiliary component includes a support frame connected to the side wall of the drainage tube. A first sprocket is inserted at one end of the support frame, and a second sprocket is inserted at the other end of the support frame. A chain is sleeved between the first sprocket and the second sprocket. A connecting frame is provided on the chain, and a squeezing roller is provided at the bottom end of the connecting frame. The squeezing roller is in contact with the outer wall of the guide tube.
6. A cardiac effusion drainage and extraction device according to claim 5, characterized in that: The bottom surface of the support frame is provided with a support plate, the bottom surface of the support plate is in contact with the inner wall of the chain, and a third servo motor is provided at one end of the side wall of the support frame. The output shaft of the third servo motor is connected to the first sprocket.
7. The cardiac effusion drainage and extraction device according to claim 1, characterized in that: The dilution mechanism includes an inlet pipe, an outlet is provided at one end of the inner wall of the drainage pipe, a delivery pipeline is provided inside the drainage pipe, one end of the delivery pipeline is connected to the outlet, the other end of the delivery pipeline is connected to the inlet pipe, and the other end of the inlet pipe extends out of the protective pipe.
8. The cardiac effusion drainage and extraction device according to claim 1, characterized in that: The cleaning mechanism includes a cleaning pipeline, which is housed inside the protective tube. The inner wall of the cleaning chamber has a cleaning port, which is connected to the cleaning pipeline.
9. A cardiac effusion drainage and extraction device according to claim 1, characterized in that: The sealing mechanism includes a baffle, one end of the protective tube is provided with a socket, the socket is connected to the first through hole, the baffle is inserted into the socket, the side wall of the baffle is provided with a limiting block, the inner wall of the socket is provided with a limiting groove, and the limiting block is inserted into the limiting groove.
10. A cardiac effusion drainage and extraction device according to claim 1, characterized in that: A first sealing gasket is provided at the first perforation, and the inner wall of the first sealing gasket is in contact with the outer wall of the suction tube. A second sealing gasket is provided at the second perforation, and the inner wall of the second sealing gasket is in contact with the outer wall of the drainage tube. A partition plate is provided inside the adjustment cavity to prevent the tubing inside the adjustment cavity from becoming disordered.