Stable pleuroperitoneal cavity puncture drainage device
By introducing an automatic cleaning component into the thoracoabdominal puncture drainage device, the problem of easy blockage of the drainage tube was solved, and the drainage tube was automatically and regularly cleaned, ensuring smooth drainage and reducing manual intervention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-03-13
AI Technical Summary
The drainage tubes of existing abdominal paracentesis drainage devices are prone to blockage and cannot be cleared in a timely manner, relying on manual monitoring and cleaning, which leads to inconvenience in operation and potential drainage problems.
A thoracentesis and peritoneal drainage device including a cleaning component was designed. By setting up a reservoir, piston plate and rotating parts, it can achieve automatic timed cleaning to remove fibrin deposits and blood clots in the drainage tube and avoid blockage.
It enables automatic, timed cleaning of the drainage tube, promptly removing blockages, avoiding the inconvenience of manual monitoring, ensuring smooth drainage, and reducing the risk of blockage.
Smart Images

Figure CN121648368A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to a stable thoracentesis and peritoneal puncture and drainage device. Background Technology
[0002] An abdominal paracentesis drainage device is a medical device used to drain intra-abdominal fluid after abdominal paracentesis. It mainly consists of a puncture needle and a drainage tube. The puncture needle is used to puncture the abdomen to establish a drainage channel. The drainage tube is a long, thin tube, usually made of silicone or polyurethane, which has good biocompatibility and flexibility. It is used to drain ascites from the abdominal cavity to the outside. Fibrin, tissue debris, or blood clots in the ascites can easily block the side holes of the drainage tube, requiring doctors to manually flush it with a syringe at regular intervals. However, it is impossible to monitor the patency of the drainage tube manually in real time. Flushing is often only performed after the drainage rate has slowed down significantly, by which time a blockage has already formed, increasing the difficulty of flushing. Furthermore, if the drainage tube cannot be cleared in time, it will affect the normal drainage of fluid. Summary of the Invention
[0003] Purpose of the invention: The problem that this invention aims to solve is that the unblocking of drainage tubes relies too much on manual labor, making it impossible to unblock the drainage tubes in a timely manner.
[0004] Technical solution: The present invention provides a stable thoracoabdominal puncture and drainage device, which includes a drainage tube, a connector on one side of the drainage tube, and a drainage tube inserted into the connector.
[0005] A cleaning assembly, disposed on one side of the connector, includes a cleaning component. The cleaning component includes an inlet pipe fixed to one side of the connector. A liquid storage cylinder is fixed to the top of the inlet pipe. A piston plate is disposed inside the liquid storage cylinder. A fixing column is fixed to the top of the piston plate.
[0006] Furthermore, the cleaning assembly of the device also includes a rotating component, which includes a rotating sleeve rotatably connected to the top of the liquid storage cylinder. A fixed shaft is fixed inside the rotating sleeve, and a spiral groove is provided on the fixed column. The fixed shaft slides in the spiral groove, and a rotating rod is sleeved on the outside of the rotating sleeve.
[0007] Furthermore, the cleaning assembly of the device also includes a connector, which includes a fixing frame fixed to the top of the rotating rod, a locking block provided inside the fixing frame, a locking groove provided on the rotating sleeve, a first spring fixed to one side of the locking block, and the other end of the first spring fixed to the inner wall of the fixing frame.
[0008] Furthermore, the cleaning assembly of the device also includes a pushing component, which includes a support frame fixed to the top of the liquid storage tank. A movable rod is provided inside the support frame, and a positioning shaft is fixed to the end of the movable rod. A sliding groove is provided on the rotating rod, and the positioning shaft slides in the sliding groove.
[0009] Furthermore, the cleaning assembly of the device also includes a trigger, which includes a spring-loaded timer fixed to the top of the liquid storage cylinder. The top of the spring-loaded timer is provided with a rotating part, a push block is fixed to the outside of the rotating part, and a force-bearing block is provided on one side of the movable rod.
[0010] Furthermore, a fixed plate is fixed to one side of the movable rod of the device, and a stabilizing shaft is rotatably connected inside the fixed plate. A first torsion spring is sleeved on the outside of the stabilizing shaft, and the two ends of the first torsion spring are fixed to the stabilizing shaft and the fixed plate, respectively. A stop block is fixed to one side of the movable rod, and one side of the stop block is in contact with the force-bearing block.
[0011] Furthermore, the cleaning assembly of the device also includes a sealing component, which includes a positioning ring fixed inside the liquid inlet pipe, a baffle on one side of the positioning ring, and a hinge plate fixed on one side of the positioning ring.
[0012] Furthermore, a first fixing block is fixed to the top of the support frame of the device, a second fixing block is fixed to the top of the movable rod, and a second spring is fixed to one side of the second fixing block.
[0013] Furthermore, a stabilizing column is fixed inside the liquid storage cylinder of the device, and the stabilizing column is movably connected to the piston plate.
[0014] Furthermore, a liquid filling pipe is fixed to one side of the liquid storage cylinder of the device, and a sealing cap is fitted onto the end of the liquid filling pipe.
[0015] Beneficial effects: Compared with the prior art, the significant advantages of the present invention are: by setting the cleaning component, the inside of the drainage tube can be automatically cleaned at regular intervals, which can promptly remove fibrin deposits, blood clot fragments and tissue debris in the drainage tube, preventing them from accumulating in the side holes or inner walls of the lumen and causing blockage of the drainage tube. Moreover, no manual real-time monitoring is required, and blockage will not occur due to excessively long operation intervals. Attached Figure Description
[0016] Figure 1 This is a structural diagram of a stable thoracoabdominal puncture and drainage device. Figure 2 Top view of the reservoir structure of a stable thoracoabdominal puncture and drainage device; Figure 3 For stable thoracentesis and peritoneal drainage devices Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 Cross-sectional structural diagram of the reservoir of a stable thoracoabdominal puncture and drainage device; Figure 5 Side view of the inlet tube of a stable thoracoabdominal puncture and drainage device; Figure 6 A partial structural diagram of the fixation column of a stable thoracoabdominal puncture and drainage device; Figure 7 Cross-sectional view of the rotating sleeve of a stable thoracoabdominal puncture and drainage device; Figure 8 Another perspective cross-sectional view of the rotating sleeve of a stable thoracoabdominal puncture and drainage device.
[0017] In the diagram: 101, flow tube; 102, connector; 103, drainage tube; 200, cleaning assembly; 201, cleaning component; 2011, inlet pipe; 2012, storage tank; 2013, piston plate; 2014, fixed column; 202, rotating component; 2021, rotating sleeve; 2022, fixed shaft; 2014-1, spiral groove; 2023, rotating rod; 203, connector; 2031, fixed frame; 2032, locking block; 2021-1, locking slot; 2033, first spring; 204, pushing component; 2041, support frame; 204 2. Movable rod; 2043. Positioning shaft; 2023-1. Slide groove; 205. Trigger; 2051. Clockwork timer; 2051-1. Rotating part; 2052. Push block; 2053. Force-bearing block; 2054. Fixing plate; 2055. Stabilizing shaft; 2056. First torsion spring; 2057. Stop block; 206. Sealing part; 2061. Positioning ring; 2062. Baffle; 2063. Hinge plate; 2044. First fixing block; 2045. Second fixing block; 2046. Second spring; 2015. Stabilizing column; 2016. Liquid filling pipe. Detailed Implementation
[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings.
[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.
[0020] Example 1
[0021] Reference Figure 1 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a stable thoracoabdominal puncture and drainage device. The stable thoracoabdominal puncture and drainage device includes a drainage tube 101. After the puncture needle is inserted into the patient's abdomen and a drainage channel is established, the drainage tube 101 can be inserted into the patient's body and fixed to the patient's abdomen. The patient's ascites can be drained outward through the drainage tube 101.
[0022] A connector 102 is provided on one side of the drainage tube 101, and a drainage tube 103 is inserted into the connector 102. A drainage bag (not shown in the figure) is connected to the end of the drainage tube 103. The connector 102 is used to connect the drainage tube 103 to the drainage tube 101, so that the accumulated fluid discharged from the drainage tube 101 can be transported to the drainage bag through the drainage tube 103. This is the prior art, and this solution will not be described in detail. Moreover, those skilled in the art can clearly understand the working principle.
[0023] The cleaning assembly 200 is disposed on one side of the connector 102 and includes a cleaning component 201. The cleaning component 201 includes an inlet pipe 2011 fixed to one side of the connector 102. The inlet pipe 2011 is connected to the connector 102 and is L-shaped. A storage cylinder 2012 is fixed to the top of the inlet pipe 2011. The storage cylinder 2012 is used to store cleaning fluid. A piston plate 2013 is disposed inside the storage cylinder 2012. A fixing post 2014 is fixed to the top of the piston plate 2013. The top of the fixing post 2014 extends to the outside of the storage cylinder 2012 and is movably connected to the storage cylinder 2012.
[0024] When the fixed column 2014 moves downward, it will drive the piston plate 2013 to move downward. At this time, the piston plate 2013 will inject the cleaning fluid inside the reservoir 2012 into the connector 102 through the inlet pipe 2011, and enter the drainage tube 101 and the drainage tube 103. This can clean and unclog the inside of the two tubes, and prevent fibrin deposits, blood clot fragments and tissue debris from accumulating on the inner wall of the lumen, which could cause blockage of the drainage tube 101 and the drainage tube 103.
[0025] When the piston plate 2013 stops moving, it forms a seal on the lower part of the reservoir 2012. At this time, the cleaning fluid inside the reservoir 2012 will not flow into the connector 102, similar to the principle of an injection syringe.
[0026] The inlet tube 2011 is equipped with a fixing strap on the outside. The bottom of the fixing strap is adhesive, which can be used to fix the inlet tube 2011 to the patient.
[0027] Example 2
[0028] Reference Figure 2 , Figure 3 and Figures 6-8 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0029] Specifically, the cleaning assembly 200 also includes a rotating component 202, which includes a rotating sleeve 2021 rotatably connected to the top of the liquid storage cylinder 2012 via a bearing. A fixed shaft 2022 is fixed inside the rotating sleeve 2021. A spiral groove 2014-1 is provided on the fixed column 2014. The fixed shaft 2022 slides in the spiral groove 2014-1. A rotating rod 2023 is sleeved on the outside of the rotating sleeve 2021. Two support bars are fixed on the outside of the rotating sleeve 2021. The rotating rod 2023 is located between the two support bars and is supported by the support bars.
[0030] When the rotating rod 2023 rotates, it will drive the rotating sleeve 2021 to rotate. At this time, the fixed shaft 2022 will slide in the spiral groove 2014-1. Through the cooperation of the two, the fixed column 2014 can be driven to move downward, thereby enabling the fixed column 2014 to drive the piston plate 2013 to move downward.
[0031] The spiral groove 2014-1 has a large pitch, so the rotating sleeve 2021 only needs to rotate a small angle to allow the fixed column 2014 and piston plate 2013 to move downwards for a sufficient stroke. Furthermore, the diameter of the liquid storage cylinder 2012 is larger than that of the liquid inlet pipe 2011. Even if the piston plate 2013 moves downwards for a small stroke, it can still deliver a sufficient amount of cleaning fluid to the inside of the diversion pipe 101 and the drainage pipe 103, and complete the cleaning and unblocking of both.
[0032] Specifically, the cleaning assembly 200 also includes a connector 203. The connector 203 includes a fixing frame 2031 fixed to the top of the rotating rod 2023. A locking block 2032 is provided inside the fixing frame 2031. One side of the locking block 2032 is inclined. A slot 2021-1 is provided on the rotating sleeve 2021. The locking block 2032 engages with the slot 2021-1. The two work together to connect the rotating rod 2023 and the rotating sleeve 2021, so that when the rotating rod 2023 rotates, it can drive the rotating sleeve 2021 to rotate. When the rotating rod 2023 rotates in the opposite direction to reset, it will not drive the rotating sleeve 2021 to rotate.
[0033] There are multiple slots 2021-1, which are evenly distributed in a ring on the outside of the rotating sleeve 2021.
[0034] A first spring 2033 is fixed to one side of the locking block 2032, and the other end of the first spring 2033 is fixed to the inner wall of the fixing frame 2031. The first spring 2033 is used to apply a pushing force to the locking block 2032, so that the locking block 2032 and the slot 2021-1 are engaged more securely.
[0035] A movable block is fixed to the top of the locking block 2032. A through groove is provided on the fixed frame 2031. The movable block is slidably connected in the through groove. Pulling the movable block can cause the locking block 2032 to separate from the locking groove 2021-1, thereby enabling the fixed column 2014 and the piston plate 2013 to move upward and reset.
[0036] Specifically, the cleaning assembly 200 also includes a pusher 204, which includes a support frame 2041 fixed to the top of the liquid storage cylinder 2012. A movable rod 2042 is provided inside the support frame 2041. A positioning shaft 2043 is fixed to the end of the movable rod 2042. A groove 2023-1 is provided on the rotating rod 2023, and the positioning shaft 2043 slides in the groove 2023-1.
[0037] When the movable rod 2042 moves, it can drive the rotating rod 2023 to rotate through the cooperation of the positioning shaft 2043 and the slide groove 2023-1.
[0038] Specifically, the cleaning component 200 also includes a trigger 205, which includes a spring-loaded timer 2051 fixed to the top of the reservoir 2012. The timer 2051 has a timing duration of 4 hours. When draining ascites, this plan mainly focuses on continuous drainage. The drainage rate needs to be strictly controlled at ≤500~1000ml per hour, and the total daily drainage volume should be ≤3000ml depending on the situation. In actual clinical practice, the rate is often controlled in the middle range, such as 750ml / h. Therefore, the time is: 3000ml ÷ 750ml / h = 4 hours. Thus, after the spring-loaded timer 2051 rotates once, it can meet the drainage time of the ascites for the day.
[0039] The top of the clockwork timer 2051 is provided with a rotating part 2051-1. By rotating the rotating part 2051-1, the clockwork timer 2051 can be wound and charged. At the same time, when the clockwork timer 2051 is released, the rotating part 2051-1 will rotate in the opposite direction. There are eight push blocks 2052 fixed on the outside of the rotating part 2051-1, which are evenly distributed in a ring on the outside of the rotating part 2051-1. The interval between each push block 2052 is half an hour. Therefore, as the rotating part 2051-1 continues to rotate, the drainage tube 103 and the inlet tube 101 can be cleaned once every half hour.
[0040] A force-receiving block 2053 is provided on one side of the movable rod 2042. When the rotating part 2051-1 rotates, the push block 2052 will contact the force-receiving block 2053 over time and push the force-receiving block 2053 to move. This allows the force-receiving block 2053 to drive the movable rod 2042 to move, and then the movable rod 2042 will drive the rotating rod 2023 and the rotating sleeve 2021 to rotate.
[0041] Furthermore, when the pusher 2052 pushes the force-bearing block 2053 and the movable rod 2042 to move, it will slowly push them to move, which will cause the rotating rod 2023 and the rotating sleeve 2021 to rotate slowly. At this time, the piston plate 2013 can slowly push the cleaning fluid into the drainage tube 103 and the insertion tube 101, thereby avoiding the possibility of damage to the abdominal tissue or rupture of the side hole of the drainage tube due to excessive pressure. Moreover, the uniform advancement of the cleaning fluid can make the pressure of the cleaning fluid on the drainage tube 103 and the insertion tube 101 more uniform, thereby effectively clearing the blockage.
[0042] Example 3
[0043] Reference Figure 3 and Figure 5 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0044] Specifically, a fixed plate 2054 is fixed to one side of the movable rod 2042. A stabilizing shaft 2055 is rotatably connected inside the fixed plate 2054. The stabilizing shaft 2055 is fixed inside the force-bearing block 2053. Through the cooperation of the fixed plate 2054 and the stabilizing shaft 2055, the force-bearing block 2053 and the movable rod 2042 are hinged. When the rotating part 2051-1 tightens the spring timer 2051 and drives the push block 2052 to contact the force-bearing block 2053, the push block 2052 will push the force-bearing block 2053 to rotate, but will not cause the force-bearing block 2053 to drive the movable rod 2042 to move.
[0045] A first torsion spring 2056 is sleeved on the outside of the stabilizing shaft 2055. The two ends of the first torsion spring 2056 are fixed to the stabilizing shaft 2055 and the fixing plate 2054 respectively. When the push block 2052 separates from the force block 2053, the first torsion spring 2056 can drive the force block 2053 to rotate and reset.
[0046] A stop block 2057 is fixed on one side of the movable rod 2042. One side of the stop block 2057 is in contact with the force block 2053. When the spring timer 2051 releases its spring force, causing the rotating part 2051-1 to drive the push block 2052, and the push block 2052 is in contact with the force block 2053, the force block 2053 is blocked by the stop block 2057 and cannot rotate. Then, under the pushing force of the push block 2052, the movable rod 2042 will move.
[0047] Specifically, the cleaning assembly 200 also includes a sealing component 206, which includes a positioning ring 2061 fixed inside the liquid inlet pipe 2011. A baffle 2062 is provided on one side of the positioning ring 2061. The baffle 2062 is used to seal the positioning ring 2061, preventing liquid inside the connector 102 from flowing into the liquid inlet pipe 2011, while the cleaning fluid discharged from the liquid inlet pipe 2011 can flow into the connector 102.
[0048] A hinge plate 2063 is fixed on one side of the positioning ring 2061. The baffle 2062 is hinged to the positioning ring 2061 through the hinge plate 2063. A second torsion spring is fixed on the hinge plate 2063, which can close the baffle 2062 after it is opened.
[0049] Specifically, a first fixing block 2044 is fixed to the top of the support frame 2041, a second fixing block 2045 is fixed to the top of the movable rod 2042, a second spring 2046 is fixed to one side of the second fixing block 2045, and the other end of the second spring 2046 is fixed to the first fixing block 2044.
[0050] When the movable rod 2042 moves, it will cause the second fixed block 2045 to squeeze the second spring 2046. As the rotating part 2051-1 rotates, the push block 2052 separates from the force block 2053. Then, the second fixed block 2045 and the movable rod 2042 can be pushed to move in opposite directions by the second spring 2046, and the movable rod 2042 will drive the rotating rod 2023 to rotate in opposite directions.
[0051] Specifically, a stabilizing column 2015 is fixed inside the liquid storage cylinder 2012. The stabilizing column 2015 is movably connected inside the piston plate 2013. The connection between the stabilizing column 2015 and the piston plate 2013 is a sealed connection, which is used to limit the piston plate 2013 and prevent the piston plate 2013 from rotating when it moves.
[0052] Specifically, a liquid filling pipe 2016 is fixed on one side of the liquid storage cylinder 2012. The liquid filling pipe 2016 can add cleaning fluid to the inside of the liquid storage cylinder 2012, and a sealing cap is fitted at the end of the liquid filling pipe 2016.
[0053] In use, when the drain tube 101 and the drainage tube 103 begin to discharge the accumulated liquid, the rotating part 2051-1 is rotated to tighten and charge the spring timer 2051. When the spring timer 2051 is released, the rotating part 2051-1 will rotate in the opposite direction. As the rotating part 2051-1 rotates, over time, the push block 2052 will come into contact with the force block 2053 and push the force block 2053 to move, thereby causing the force block 2053 to drive the movable rod 2042 to move.
[0054] When the movable rod 2042 moves, it can drive the rotating rod 2023 to rotate through the cooperation of the positioning shaft 2043 and the slide groove 2023-1. The rotating rod 2023 drives the rotating sleeve 2021 to rotate. At this time, the fixed shaft 2022 will slide in the spiral groove 2014-1. Through the cooperation of the two, the fixed column 2014 can be driven to move downward, thereby causing the fixed column 2014 to drive the piston plate 2013 to move downward.
[0055] At this time, the piston plate 2013 injects the cleaning fluid inside the reservoir 2012 into the connector 102 through the inlet pipe 2011, and into the drainage tube 101 and the drainage tube 103. This can clean and unclog the inside of the two tubes, and prevent fibrin deposits, blood clot fragments and tissue debris from accumulating on the inner wall of the lumen, which could cause blockage of the drainage tube 101 and the drainage tube 103.
[0056] As the rotating part 2051-1 continues to rotate, the drainage tube 103 and the insertion tube 101 will be cleaned every half hour, thus eliminating the need for medical staff to continuously monitor the patency of the drainage tube 103 and the insertion tube 101, and enabling timely cleaning of the drainage tube 103 and the insertion tube 101.
Claims
1. A stable thoracoabdominal puncture and drainage device, comprising a drainage tube (101), wherein a connector (102) is provided on one side of the drainage tube (101), and a drainage tube (103) is inserted into the connector (102), characterized in that: include, A cleaning assembly (200) is disposed on one side of the connector (102) and includes a cleaning component (201). The cleaning component (201) includes an inlet pipe (2011) fixed to one side of the connector (102). A liquid storage cylinder (2012) is fixed to the top of the inlet pipe (2011). A piston plate (2013) is disposed inside the liquid storage cylinder (2012). A fixing post (2014) is fixed to the top of the piston plate (2013).
2. The stable thoracoabdominal puncture and drainage device as described in claim 1, characterized in that: The cleaning assembly (200) further includes a rotating component (202), which includes a rotating sleeve (2021) rotatably connected to the top of the liquid storage cylinder (2012). A fixed shaft (2022) is fixed inside the rotating sleeve (2021). A spiral groove (2014-1) is provided on the fixed column (2014). The fixed shaft (2022) slides in the spiral groove (2014-1). A rotating rod (2023) is sleeved on the outside of the rotating sleeve (2021).
3. The stable thoracoabdominal puncture and drainage device as described in claim 2, characterized in that: The cleaning assembly (200) further includes a connector (203), which includes a fixing frame (2031) fixed to the top of the rotating rod (2023). A locking block (2032) is provided inside the fixing frame (2031). A locking groove (2021-1) is provided on the rotating sleeve (2021). A first spring (2033) is fixed on one side of the locking block (2032), and the other end of the first spring (2033) is fixed to the inner wall of the fixing frame (2031).
4. The stable thoracoabdominal puncture and drainage device as described in claim 2 or 3, characterized in that: The cleaning assembly (200) further includes a pusher (204), which includes a support frame (2041) fixed to the top of the liquid storage cylinder (2012). A movable rod (2042) is provided inside the support frame (2041). A positioning shaft (2043) is fixed to the end of the movable rod (2042). A sliding groove (2023-1) is provided on the rotating rod (2023), and the positioning shaft (2043) slides in the sliding groove (2023-1).
5. The stable thoracoabdominal puncture and drainage device as described in claim 4, characterized in that: The cleaning assembly (200) also includes a trigger (205), which includes a spring timer (2051) fixed to the top of the liquid storage cylinder (2012). The top of the spring timer (2051) is provided with a rotating part (2051-1), and a push block (2052) is fixed to the outside of the rotating part (2051-1). A force-bearing block (2053) is provided on one side of the movable rod (2042).
6. The stable thoracoabdominal puncture and drainage device as described in claim 5, characterized in that: A fixing plate (2054) is fixed to one side of the movable rod (2042). A stabilizing shaft (2055) is rotatably connected inside the fixing plate (2054). A first torsion spring (2056) is sleeved on the outside of the stabilizing shaft (2055). The two ends of the first torsion spring (2056) are fixed to the stabilizing shaft (2055) and the fixing plate (2054) respectively. A stop block (2057) is fixed to one side of the movable rod (2042). One side of the stop block (2057) is in contact with the force-bearing block (2053).
7. The stable thoracoabdominal puncture and drainage device as described in claim 5 or 6, characterized in that: The cleaning assembly (200) further includes a sealing element (206), which includes a positioning ring (2061) fixed inside the liquid inlet pipe (2011), a baffle (2062) is provided on one side of the positioning ring (2061), and a hinge plate (2063) is fixed on one side of the positioning ring (2061).
8. The stable thoracoabdominal puncture and drainage device as described in claim 7, characterized in that: The support frame (2041) is fixed with a first fixing block (2044) at the top, the movable rod (2042) is fixed with a second fixing block (2045) at the top, and a second spring (2046) is fixed on one side of the second fixing block (2045).
9. The stable thoracoabdominal puncture and drainage device as described in claim 8, characterized in that: A stabilizing column (2015) is fixed inside the liquid storage cylinder (2012), and the stabilizing column (2015) is movably connected inside the piston plate (2013).
10. The stable thoracoabdominal puncture and drainage device as described in claim 8 or 9, characterized in that: A liquid filling pipe (2016) is fixed on one side of the liquid storage cylinder (2012), and a sealing cap is fitted at the end of the liquid filling pipe (2016).