Bending-resistant drainage tube
By installing an anti-bending device on the surface of the drainage tube, the problem of easy bending of the drainage tube is solved, achieving stable insertion and drainage of accumulated fluid, and promoting wound healing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU NEW DISTRICT HUASHENG MEDICAL EQUIP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
Existing drainage tubes are prone to bending, which prevents the fluid from draining effectively and affects wound healing.
An anti-bending device is installed on the surface of the drainage tube, which is an anti-compression structure composed of an anti-compression ring, a retaining ring, a rectangular plate, a protrusion, a spring, etc. The anti-bending effect is achieved through locking and elastic connection.
It achieves stable insertion of the drainage tube into the human body and drainage of accumulated fluid, prevents slippage and bending, and promotes wound healing.
Smart Images

Figure CN224156088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-bending drainage tube technology, and in particular to anti-bending drainage tube. Background Technology
[0002] A drainage tube is a medical device used in clinical surgery to drain pus, blood, and fluid accumulated between body tissues or in body cavities, preventing postoperative infection and promoting wound healing. Many types of surgical drainage tubes are used clinically; some are used for urinary catheterization, others for wounds, and they are used in the thoracic cavity, brain cavity, gastrointestinal tract, and biliary tract, among others. The purpose of surgical drainage is to drain pus, blood, and fluid accumulated between body tissues or in body cavities to prevent postoperative infection and to avoid hindering wound healing.
[0003] The inventors discovered during routine use of drainage tubes that ordinary drainage tubes are made of silicone, which makes them prone to bending during use. This prevents the drainage of fluid from draining properly, thus causing adverse effects. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an anti-bending drainage tube.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an anti-bending drainage tube, comprising a drainage tube, wherein an anti-bending device is provided on the surface of the drainage tube, and the drainage tube is made of silicone material.
[0006] The aforementioned components achieve the following effects: When a drainage tube is needed, it is placed in the surgical area or body cavity and exits through the skin incision, guiding pus, exudate, blood, tissue fluid, and other fluids accumulated between body tissues or in the body cavity to the outside, preventing fluid accumulation that could lead to postoperative infection. This promotes wound healing and disease recovery.
[0007] Preferably, one end of the drainage tube is fixedly connected to a conduit, the conduit being thinner at one end and thicker at the other, the thicker end of the conduit being connected to the drainage tube.
[0008] The effect achieved by the above components is that, with the help of the catheter, it is easier to insert the drainage tube into the human body to drain the accumulated fluid.
[0009] Preferably, a plug is provided at the other end of the drainage tube, and the plug is sleeved on one end of the drainage tube.
[0010] The effect achieved by the above-mentioned components is that, under the action of the plug, one end of the drainage tube is blocked, thus preventing the drainage tube from flowing erratically.
[0011] Preferably, the anti-bending device includes an anti-pressure ring sleeved on the surface of the drainage tube. The anti-pressure ring is composed of two semi-circular rings and is made of rigid PVC. A rectangular plate is fixedly connected to the surface of the anti-pressure ring. A protrusion is fixedly connected to one end of the rectangular plate. A groove is formed on the side of the protrusion. A spring is fixedly connected inside the groove. An insert is fixedly connected to the other end of the spring. A through groove is formed on the surface of the other rectangular plate.
[0012] The effect achieved by the above components is that, under the action of the insert, the pressure-resistant rings can be locked together to form a ring, thereby protecting and supporting the drainage tube, and thus achieving the effect of pressure resistance.
[0013] Preferably, a baffle is fixedly connected to the side of the drainage tube, and the baffle is disposed at both ends of the pressure-resistant ring.
[0014] The effect achieved by the above components is that, under the action of the baffle, the pressure-resistant ring will not slip off the surface of the drainage tube, thereby avoiding the slippage phenomenon.
[0015] Preferably, a retaining ring is fixedly connected to the surface of the pressure-resistant ring, and the retaining ring is located on the side of the pressure-resistant ring near the drainage tube.
[0016] The effect achieved by the above components is that, under the action of the retaining ring, the pressure-resistant ring will not slide on the surface of the drainage tube, thereby achieving the anti-slip function.
[0017] Preferably, a washer, which is a rubber ring, is fixedly connected to the surface of the rectangular plate.
[0018] The effect achieved by the above components is that, under the action of the washers, the rectangular plates will not collide directly with each other, thereby avoiding rigid contact.
[0019] Preferably, a bellows is fixedly connected to the side of the pressure-resistant ring, and the bellows and the pressure-resistant ring are arranged alternately.
[0020] The effect achieved by the above components is that, under the action of the bellows, the pressure-resistant ring is bent and extended under pressure, thereby allowing the pressure-resistant ring to be adapted to drainage tubes of different lengths.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting an anti-bending device, when the drainage tube needs to be bent, the anti-pressure ring is clamped on the surface of the drainage tube, the insert is pressed into the inside of the groove, and the protrusion is inserted into the inside of the through groove, thereby fixing the protrusion inside the through groove. Under the action of the washer, the rectangular plates will not collide directly with each other, thus avoiding rigid contact. The anti-pressure ring is clamped on the surface of the drainage tube, and under the action of the retaining ring, the anti-pressure ring will not slide on the surface of the drainage tube, thus achieving an anti-slip effect. Under the action of the baffle, the anti-pressure ring will not slip off the surface of the drainage tube, thus avoiding slippage. Under the action of the corrugated pipe, the anti-pressure ring is bent and extended under pressure, thus allowing the anti-pressure ring to adapt to drainage tubes of different lengths, thereby achieving an anti-bending deformation effect. This solves the problem that the drainage tube is easily flattened by the human body, making it inconvenient to drain accumulated fluid. Attached Figure Description
[0023] Figure 1 A three-dimensional structural diagram of the anti-bending drainage tube proposed in this utility model is provided;
[0024] Figure 2 A schematic diagram of the anti-bending device for the anti-bending drainage tube proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the anti-bending device of the anti-bending drainage tube proposed in this utility model.
[0026] Legend: 1. Drainage tube; 2. Anti-bending device; 21. Anti-compression ring; 22. Snap ring; 23. Rectangular plate; 24. Protrusion; 25. Spring; 26. Insert block; 27. Washer; 28. Corrugated pipe; 29. Baffle; 3. Conduit; 4. Plug cap. Detailed Implementation
[0027] Example 1, referring to Figure 1 The anti-bending drainage tube 1 includes a drainage tube 1, an anti-bending device 2 is provided on the surface of the drainage tube 1, the drainage tube 1 is made of silicone material, a conduit 3 is fixedly connected to one end of the drainage tube 1, the conduit 3 is thin at one end and thick at the other end, the thick end of the conduit 3 is connected to the drainage tube 1, and a plug 4 is provided at the other end of the drainage tube 1, the plug 4 is sleeved on one end of the drainage tube 1.
[0028] Working principle: When drainage tube 1 is needed, it is placed in the surgical area or body cavity and exits through the skin incision. It guides pus, exudate, blood, tissue fluid, and other fluids accumulated between tissues or in the body cavity to the outside, preventing fluid accumulation and subsequent postoperative infection. This promotes wound healing and disease recovery.
[0029] Reference Figure 2-3The anti-bending device 2 includes an anti-pressure ring 21 fitted onto the surface of the drainage tube 1. The anti-pressure ring 21 consists of two semi-circular rings and is made of rigid PVC. A rectangular plate 23 is fixedly connected to the surface of the anti-pressure ring 21. A protrusion 24 is fixedly connected to one end of the rectangular plate 23. A groove is provided on the side of the protrusion 24. A spring 25 is fixedly connected inside the groove. An insert 26 is fixedly connected to the other end of the spring 25. A through groove is provided on the surface of the other rectangular plate 23. A baffle 29 is fixedly connected to the side of the drainage tube 1 and is located at both ends of the anti-pressure ring 21. A retaining ring 22 is fixedly connected to the surface of the anti-pressure ring 21 and is located on the side of the anti-pressure ring 21 closest to the drainage tube 1. A washer 27, which is a rubber ring, is fixedly connected to the surface of the rectangular plate 23. A corrugated pipe 28 is fixedly connected to the side of the anti-pressure ring 21 and is arranged alternately with the anti-pressure ring 21.
[0030] Working principle: When it is necessary to resist bending of the drainage tube 1, the pressure-resistant ring 21 is clamped on the surface of the drainage tube 1, the insert 26 is pressed into the inside of the groove, and the protrusion 24 is inserted into the inside of the through groove, thereby fixing the protrusion 24 inside the through groove. Under the action of the washer 27, the rectangular plate 23 will not collide directly with each other, thus avoiding rigid contact. The pressure-resistant ring 21 is clamped on the surface of the drainage tube 1. Under the action of the retaining ring 22, the pressure-resistant ring 21 will not slide on the surface of the drainage tube 1, thus achieving an anti-slip effect. Under the action of the baffle 29, the pressure-resistant ring 21 will not slip off the surface of the drainage tube 1, thus avoiding slippage. Under the action of the corrugated pipe 28, the pressure-resistant ring 21 is bent and extended under pressure, thus allowing the pressure-resistant ring 21 to adapt to drainage tubes 1 of different lengths, thereby achieving the function of resisting bending deformation.
Claims
1. A bend-resistant drainage tube, characterized in that: Includes a drainage tube (1), the surface of which is provided with an anti-bending device (2), and the drainage tube (1) is made of silicone material.
2. The anti-bending drainage tube according to claim 1, characterized in that: One end of the drainage tube (1) is fixedly connected to a conduit (3), which is thin at one end and thick at the other. The thick end of the conduit (3) is connected to the drainage tube (1).
3. The anti-bending drainage tube according to claim 2, characterized in that: The other end of the drainage tube (1) is provided with a plug (4), which is sleeved on one end of the drainage tube (1).
4. The anti-bending drainage tube according to claim 3, characterized in that: The anti-bending device (2) includes an anti-pressure ring (21) sleeved on the surface of the drainage tube (1). The anti-pressure ring (21) is composed of two semi-circular rings and is made of rigid PVC. A rectangular plate (23) is fixedly connected to the surface of the anti-pressure ring (21). A protrusion (24) is fixedly connected to one end of the rectangular plate (23). A groove is provided on the side of the protrusion (24). A spring (25) is fixedly connected inside the groove. A plug (26) is fixedly connected to the other end of the spring (25). A through groove is provided on the surface of the other rectangular plate (23).
5. The anti-bending drainage tube according to claim 4, characterized in that: A baffle (29) is fixedly connected to the side of the drainage tube (1), and the baffle (29) is set at both ends of the pressure-resistant ring (21).
6. The anti-bending drainage tube according to claim 5, characterized in that: A retaining ring (22) is fixedly connected to the surface of the pressure-resistant ring (21), and the retaining ring (22) is located on the side of the pressure-resistant ring (21) close to the drainage tube (1).
7. The anti-bending drainage tube according to claim 6, characterized in that: A washer (27) is fixedly connected to the surface of the rectangular plate (23), and the washer (27) is a rubber ring.
8. The anti-bending drainage tube according to claim 7, characterized in that: A bellows (28) is fixedly connected to the side of the pressure-resistant ring (21), and the bellows (28) and the pressure-resistant ring (21) are arranged alternately.