A leak-proof tubing device for gynecological thoracic and abdominal chemotherapy
By designing a leak-proof tubing device for gynecological thoracic and abdominal chemotherapy, and utilizing a spring-driven piston and a sliding port limiting structure, the leakage problem when the thoracic drainage tube is not connected to the equipment was solved, achieving automatic sealing and channel sealing, thus improving the reliability and convenience of drainage.
Patent Information
- Application Number
- CN202522041834.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-23
AI Technical Summary
Existing chest drainage tubes are prone to leakage when not connected to equipment and cannot automatically seal the interface.
A leak-proof tubing device for gynecological thoracic and abdominal chemotherapy was designed, including an upper chamber tube and a lower chamber tube. The device utilizes a spring-driven piston to achieve automatic sealing. During connection, the sliding tube pushes the piston downward to achieve communication with the instrument. The sealing is ensured by a sliding port and a convex plate limiting structure.
It automatically seals when not connected to the instrument and creates a sealed channel when connected to prevent leakage, ensure drainage effect, and facilitates assembly and disassembly.
Smart Images

Figure CN224937420U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to a leak-proof tubing device for gynecological thoracic and abdominal chemotherapy. Background Technology
[0002] Thoracic and abdominal drainage tubes are medical devices inserted into the thoracic or abdominal cavity through puncture or surgery to drain abnormally accumulated gases or fluids (such as blood, pus, exudate, ascites, etc.). Their core functions are to relieve intracavitary pressure, remove pathological products, and promote tissue repair. Through precise drainage, thoracic and abdominal drainage tubes can effectively improve the intracavitary environment, providing crucial support for disease treatment and postoperative recovery.
[0003] The chest drainage tube described in patent CN208974750U is introduced into the chest cavity during chest drainage surgery by a guide wire. The guide wire is then withdrawn, and the outlet end is a detachable structure. The outlet end is removed when the guide wire is withdrawn to avoid damage to the first one-way valve. The outlet end is then reinstalled after the guide wire is withdrawn. However, when the chest drainage tube is not connected to any equipment, its connection port is open, which is prone to leakage and cannot automatically seal the interface. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a leak-proof pipeline device for gynecological thoracic and abdominal chemotherapy, which has the advantage of easy sealing.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof tubing device for gynecological thoracic and abdominal chemotherapy, comprising an upper cavity tube, a sliding tube inserted into the inner wall of the top of the upper cavity tube, a piston for sealing the upper cavity tube fixedly connected to the outer wall of the bottom of the sliding tube, a spring pressed at the bottom of the piston, and a lower cavity tube threadedly connected to the outer wall of the upper cavity tube, the bottom of the inner wall of the lower cavity tube supporting the bottom of the spring.
[0006] The above technical solution can achieve automatic back-blocking. When the chest drainage tube is not connected to the instrument, the spring in the upper cavity tube will block the top of the piston, so that drainage will not occur. When the instrument is connected, the connecting tube of the instrument will squeeze the sliding tube, which will push the piston downward, thus opening the top of the upper cavity tube and allowing the chest drainage tube to connect with the instrument.
[0007] Preferably, the slide tube includes a tube body for sliding, a protruding plate is fixedly connected to the top outer wall of the tube body, and an opening is provided on the outer wall of the tube body.
[0008] The above technical solution can play a role in guiding the flow. After the opening on the outer wall of the tube slides down, it will connect with the upper cavity tube, thus allowing the flow to be guided. When the opening slides up, it will be hidden inside the upper cavity tube, thereby blocking the flow. The convex plate at the top can play a role in locking and limiting the flow when the tube slides down.
[0009] Preferably, a connecting post is fixedly connected to the bottom outer wall of the tube, and a clamp is fixedly connected to the outer wall of the connecting post.
[0010] The above technical solution can achieve a fixing function, and the clamp on the connecting column can fix the piston.
[0011] Preferably, the piston includes a rubber plug inserted into the clip head, the top outer wall of the rubber plug having a fixing groove for wrapping the clip head, and the bottom outer wall of the rubber plug having a pressing groove.
[0012] The above technical solution can achieve a sealing effect. The rubber plug can seal the upper cavity tube, the fixing groove can wrap the clamp head for fixation, and the pressure groove can clamp the spring for fixation.
[0013] Preferably, the upper cavity tube includes an upper conical tube with a narrowed top diameter, and the bottom outer wall of the upper conical tube is connected to a threaded tube.
[0014] The above technical solution can serve as a connection, and the threaded tube can be used to connect with the instrument.
[0015] Preferably, the lower cavity tube includes a lower conical tube with a narrowed bottom diameter, a connector is fixedly connected to the top outer wall of the lower conical tube, and a side ear is fixedly connected to the outer wall of the lower conical tube.
[0016] The above technical solution facilitates assembly. The connector on the lower chamber tube can be combined with or separated from the upper chamber tube, thus making it convenient to connect the piston and the chuck.
[0017] Preferably, the guide tube includes a flexible tube communicating with the lower cavity tube, the outer wall of the flexible tube is fixedly connected to a fixing part, and the outer wall of the flexible tube is connected to a pig tail tube.
[0018] The above technical solution can achieve the function of drainage. The pig tail tube can be inserted into the thoracic cavity, so that the fluid in the thoracic cavity can be drained.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. When the chest drainage tube is not connected to the instrument, the spring inside the upper vena cava will block the top of the piston, thus preventing drainage. When the instrument is connected, the connecting tube of the instrument will squeeze the sliding tube, which will push the piston downward, thus opening the top of the upper vena cava and allowing the chest drainage tube to connect with the instrument.
[0021] 2. After the opening on the outer wall of the tube slides downward, it will connect with the upper cavity tube, thus allowing flow to be guided. When the opening slides upward, it will be hidden inside the upper cavity tube, thereby blocking the flow. The convex plate at the top can act as a locking limit when the tube slides downward. The clamp on the connecting column can fix the piston. The rubber plug can seal the upper cavity tube. The clamp can be wrapped and fixed through the fixing groove. The spring can be clamped through the pressure groove, thus fixing it. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0023] Figure 2 This is a schematic cross-sectional view of the main body of this utility model;
[0024] Figure 3 This is a schematic diagram of the upper cavity tube structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the sliding tube structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the piston structure of this utility model;
[0027] Figure 6 This is a schematic diagram of the lower cavity tube structure of this utility model.
[0028] In the diagram: 1. Upper chamber tube; 2. Sliding tube; 3. Piston; 4. Spring; 5. Lower chamber tube; 6. Guide tube; 100. Upper conical tube; 101. Threaded tube; 200. Tube body; 201. Convex plate; 202. Through port; 203. Connecting post; 204. Clamp; 300. Rubber plug; 301. Fixing groove; 302. Pressing groove; 500. Lower conical tube; 501. Connector; 502. Side ear; 600. Flexible hose; 601. Fixing part; 602. Pig tail tube. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 1:
[0031] Please see Figures 1-6 This utility model provides a technical solution: a leak-proof tubing device for gynecological thoracic and abdominal chemotherapy, including an upper cavity tube 1, a sliding tube 2 inserted into the inner wall of the top of the upper cavity tube 1, a piston 3 for sealing the upper cavity tube 1 fixedly connected to the outer wall of the bottom of the sliding tube 2, a spring 4 pressed at the bottom of the piston 3, and a lower cavity tube 5 threadedly connected to the outer wall of the upper cavity tube 1, the bottom of the inner wall of the lower cavity tube 5 supporting the bottom of the spring 4.
[0032] In this implementation scheme, when the chest drainage tube is not connected to the instrument, the spring 4 in the upper cavity tube 1 will block the top of the piston 3, so that drainage will not occur. When the instrument is connected, the connecting tube of the instrument will squeeze the sliding tube 2, so the sliding tube 2 will push the piston 3 downward, thus opening the top of the upper cavity tube 1, allowing the chest drainage tube to connect with the instrument.
[0033] Example 2:
[0034] Please see Figures 4-5 Based on Embodiment 1, this utility model provides a technical solution: the slide tube 2 includes a tube body 200 for sliding, a protruding plate 201 is fixedly connected to the top outer wall of the tube body 200, an opening 202 is opened on the outer wall of the tube body 200, a connecting post 203 is fixedly connected to the bottom outer wall of the tube body 200, a clamping head 204 is fixedly connected to the outer wall of the connecting post 203, and the piston 3 includes a rubber plug 300 inserted into the clamping head 204, a fixing groove 301 for wrapping the clamping head 204 is opened on the top outer wall of the rubber plug 300, and a pressing groove 302 is opened on the bottom outer wall of the rubber plug 300.
[0035] In this embodiment, after the opening 202 on the outer wall of the tube 200 slides downward, it will connect with the upper cavity tube 1, thus allowing flow to be guided. When the opening 202 slides upward, it will be hidden inside the upper cavity tube 1, thereby blocking the flow. The top protrusion 201 can act as a locking and limiting device when the slide tube 2 slides downward. The clamp 204 on the connecting column 203 can fix the piston 3. The rubber plug 300 can seal the upper cavity tube 1. The clamp 204 can be wrapped around the fixing groove 301 for fixation. The spring 4 can be clamped by the pressure groove 302 for fixation.
[0036] Example 3:
[0037] Please see Figures 3-6 Based on Embodiments 1 and 2, this utility model provides a technical solution: the upper cavity tube 1 includes an upper conical tube 100 with a top constricted diameter, and a threaded tube 101 is connected to the bottom outer wall of the upper conical tube 100; the lower cavity tube 5 includes a lower conical tube 500 with a bottom constricted diameter, a connector 501 is fixedly connected to the top outer wall of the lower conical tube 500, and a side ear 502 is fixedly connected to the outer wall of the lower conical tube 500; the guide tube 6 includes a flexible tube 600 connected to the lower cavity tube 5, a fixing part 601 is fixedly connected to the outer wall of the flexible tube 600, and a pig tail tube 602 is connected to the outer wall of the flexible tube 600.
[0038] In this embodiment, the threaded tube 101 can be used to connect to the instrument, and the connector 501 on the lower cavity tube 5 can be combined or disassembled with the upper cavity tube 1, so that the piston 3 can be connected to the clamp 204. The pig tail tube 602 can be inserted into the thoracic cavity, so that the fluid in the thoracic cavity can be drained.
[0039] The working principle and usage of this utility model are as follows: When the chest drainage tube is not connected to any instrument, the spring 4 inside the upper cavity tube 1 will seal the top of the piston 3, thus preventing drainage. When connected to the instrument, the connecting tube of the instrument will squeeze the sliding tube 2, which will push the piston 3 downward, opening the top of the upper cavity tube 1 and allowing the chest drainage tube to connect with the instrument. After the opening 202 on the outer wall of the tube body 200 slides downward, it will connect with the upper cavity tube 1, allowing for drainage. When the opening 202 slides upward, it will be hidden inside the upper cavity tube 1, thus obstructing flow. The convex plate 201 at the top can... When the slide tube 2 slides downward, it can act as a locking limit. The clamp 204 on the connecting column 203 can fix the piston 3. The rubber plug 300 can seal the upper cavity tube 1. The clamp 204 can be wrapped and fixed by the fixing groove 301. The spring 4 can be clamped by the pressure groove 302 for fixation. The threaded tube 101 can be used to connect to the instrument. The connector 501 on the lower cavity tube 5 can be combined or unsealed with the upper cavity tube 1, which makes it easy to connect the piston 3 and the clamp 204. The pig tail tube 602 can be inserted into the pleural cavity to drain the fluid in the pleural cavity.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A leakage-proof pipeline device for gynecological chest and abdominal cavity chemotherapy, comprising a superior vena cava (1), characterized in that: A sliding tube (2) is inserted into the top inner wall of the upper cavity tube (1). A piston (3) for sealing the upper cavity tube (1) is fixedly connected to the bottom outer wall of the sliding tube (2). A spring (4) is pressed at the bottom of the piston (3). A lower cavity tube (5) is threadedly connected to the outer wall of the upper cavity tube (1). The bottom of the inner wall of the lower cavity tube (5) supports the bottom of the spring (4).
2. The anti-leakage tubing device for gynecological thoracic and abdominal chemotherapy according to claim 1, characterized in that: The sliding tube (2) includes a tube body (200) for sliding, a protruding plate (201) is fixedly connected to the top outer wall of the tube body (200), and an opening (202) is provided on the outer wall of the tube body (200).
3. The anti-leakage tubing device for gynecological thoracic and abdominal chemotherapy according to claim 2, characterized in that: A connecting post (203) is fixedly connected to the bottom outer wall of the tube body (200), and a clamp (204) is fixedly connected to the outer wall of the connecting post (203).
4. The anti-leakage tubing device for gynecological thoracic and abdominal chemotherapy according to claim 1, characterized in that: The piston (3) includes a rubber plug (300) inserted into the clip (204). The top outer wall of the rubber plug (300) is provided with a fixing groove (301) for wrapping the clip (204), and the bottom outer wall of the rubber plug (300) is provided with a pressing groove (302).
5. The anti-leakage tubing device for gynecological thoracic and abdominal chemotherapy according to claim 1, characterized in that: The upper cavity tube (1) includes an upper conical tube (100) with a top constriction diameter, and the bottom outer wall of the upper conical tube (100) is connected to a threaded tube (101).
6. The anti-leakage tubing device for gynecological thoracic and abdominal chemotherapy according to claim 1, characterized in that: The lower cavity tube (5) includes a lower conical tube (500) with a narrowed bottom diameter. A connector (501) is fixedly connected to the top outer wall of the lower conical tube (500), and a side ear (502) is fixedly connected to the outer wall of the lower conical tube (500).
7. The anti-leakage tubing device for gynecological thoracic and abdominal chemotherapy according to claim 1, characterized in that: The guide tube (6) includes a flexible tube (600) that communicates with the lower cavity tube (5). A fixing part (601) is fixedly connected to the outer wall of the flexible tube (600), and a pig tail tube (602) is connected to the outer wall of the flexible tube (600).
Citation Information
Patent Citations
Chest drainage tube
CN208974750U
