Double-cavity anti-leakage drainage tube

By designing a double-lumen leak-proof drainage tube, and utilizing a ring-shaped self-adhesive base and a multi-lumen structure, the problem of external leakage of the drainage tube was solved, achieving a safer and more comfortable drainage effect.

CN121102606APending Publication Date: 2025-12-12SHENZHEN HOSPITAL OF SOUTHERN MEDICAL UNIV
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Patent Information

Application Number
CN202511633293.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing drainage tubes are prone to leakage of irrigation fluid during use, which can contaminate bed sheets, blankets, and patient clothing, increasing the difficulty of nursing care and patient suffering.

Method used

A dual-lumen anti-leakage drainage tube was designed, including an annular self-adhesive base plate, an eccentric funnel connecting plate, a proximal dual-lumen drainage tube, a detachable drainage tube, and a distal single-lumen drainage tube. The self-adhesive base plate fits tightly against the skin, and the multiple cavity structures collect and guide exudate to reduce external leakage.

Benefits of technology

It effectively prevents leakage around the drainage tube, reduces the risk of soiling clothing and bedding, promotes wound healing, reduces the frequency of dressing changes, and reduces patient suffering.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a double-cavity anti-leakage drainage tube which comprises an annular self-adhesion base plate and an eccentric funnel connecting plate arranged below a middle through hole of the annular self-adhesion base plate, a near-end double-cavity drainage tube is connected below a ventage of the eccentric funnel connecting plate, a detachable drainage tube is arranged in a first cavity of the near-end double-cavity drainage tube, and a second cavity of the near-end double-cavity drainage tube is connected with a second cavity of the annular self-adhesion base plate. A plurality of side holes are formed in the side wall of the top of the detachable drainage tube, the bottom of the double-cavity drainage tube is connected with a far-end single-cavity drainage tube, a drainage tube clamp is arranged on the far-end single-cavity drainage tube, and the tail end of the far-end single-cavity drainage tube is connected with a negative-pressure or normal-pressure drainage bag. By means of the near-end double-cavity drainage tube, it is avoided that exudate is excessively accumulated in the eccentric funnel connecting disc when a user sideways, the liquid exudating around a wound flowing down from the outer wall of the detachable drainage tube is collected through the second cavity, pollution to clothes and bedding and wound tissue infection caused by exudation around the drainage tube can be effectively reduced, wound healing is promoted, and the wound healing rate is increased. And the times of dressing change and the pain of patients are reduced.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a double-lumen leak-proof drainage tube. Background Technology

[0002] In general surgery, patients often require double drainage tubes for rinsing and drainage of the abdominal cavity. For example, after rectal cancer surgery, rinsing and drainage are used to prevent anastomotic leakage in the pelvic cavity, or to treat anastomotic leakage that has already occurred. During rinsing and drainage, rinsing fluid often leaks along the tube walls, which can easily contaminate bed sheets, blankets, and even the patient's clothing, increasing the patient's fear, making nursing care difficult, increasing the workload of medical staff, and causing unnecessary suffering for the patient. Summary of the Invention

[0003] The purpose of this invention is to provide a double-lumen leak-proof drainage tube to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention discloses a dual-lumen leak-proof drainage tube, comprising an annular self-adhesive base and an eccentric funnel connecting plate located below a central through hole in the annular self-adhesive base. A proximal dual-lumen drainage tube is connected below the outlet of the eccentric funnel connecting plate. A detachable drainage tube is provided within one lumen of the proximal dual-lumen drainage tube. Several side holes are provided on the top sidewall of the detachable drainage tube. A distal single-lumen drainage tube is connected to the bottom of the dual-lumen drainage tube. A drainage tube clamp is provided on the distal single-lumen drainage tube. The end of the distal single-lumen drainage tube is connected to a negative pressure or normal pressure drainage bag.

[0006] Furthermore, the bottom of the dual-lumen drainage tube and the top of the distal single-lumen drainage tube are connected by a funnel-shaped connecting part.

[0007] Furthermore, the eccentric funnel connecting plate, the proximal double-lumen drainage tube, the detachable drainage tube, the funnel-shaped connecting part, and the distal single-lumen drainage tube are all made of soft PE material with a thickness of 1-2mm.

[0008] Furthermore, the surface of the annular self-adhesive base is provided with self-adhesive, and a thin film is attached to the outside of the self-adhesive.

[0009] Furthermore, the concave part of the eccentric funnel connecting plate is offset to one side, and the concave part of the eccentric funnel connecting plate is connected to the top of the proximal double-lumen drainage tube.

[0010] Furthermore, the detachable drainage tube is inserted into the first cavity, and the second cavity of the proximal double-lumen drainage tube collects the liquid leaking from the opening of the detachable drainage tube.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0012] This invention allows the annular self-adhesive base to adhere tightly to the surrounding skin after the thin film is peeled off, preventing it from falling off. The proximal double-lumen drainage tube prevents excessive accumulation of exudate in the eccentric funnel connecting plate when the patient is lying on their side. The second lumen collects the fluid exudate around the wound that flows down from the outer wall of the detachable drainage tube. This split design is suitable not only for initial use but also for cases where leakage occurs after the initial placement of the drainage tube. This design effectively reduces the contamination of clothing and bedding, wound tissue infection caused by exudate around the drainage tube, promotes wound healing, reduces the frequency of dressing changes, and reduces patient suffering. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the double-cavity leak-proof drainage tube structure of the present invention;

[0015] Figure 2 This is a cross-sectional view of the main surface of the double-cavity leak-proof drainage tube of the present invention;

[0016] Figure 3 This is a side sectional view of the double-cavity leak-proof drainage tube of the present invention;

[0017] Figure 4 Top view of the eccentric funnel connecting plate;

[0018] Explanation of reference numerals in the attached drawings: 1. Annular self-adhesive base plate; 2. Eccentric funnel connecting plate; 3. Proximal double-lumen drainage tube; 301. Lumen 1; 302. Lumen 2; 4. Detachable drainage tube; 5. Funnel-shaped connecting part; 6. Distal single-lumen drainage tube; 7. Drainage tube clamp; 8. Side hole. Detailed Implementation

[0019] like Figure 1-4 As shown, a double-cavity leak-proof drainage tube includes an annular self-adhesive base plate 1 and an eccentric funnel connecting plate 2 located below the central through hole of the annular self-adhesive base plate 1. The surface of the annular self-adhesive base plate 1 is provided with self-adhesive, and a thin film is attached to the outside of the self-adhesive. By peeling off the film, it can adhere tightly to the surrounding skin to prevent it from falling off.

[0020] The eccentric funnel connecting plate 2 is connected to a proximal double-lumen drainage tube 3 below the outlet. The outlet is located at the most concave part of the eccentric funnel connecting plate 2. The most concave part of the eccentric funnel connecting plate 2 is biased to one side. The most concave part of the eccentric funnel connecting plate 2 is connected to the top of the proximal double-lumen drainage tube 3.

[0021] The proximal double-lumen drainage tube 3 has a detachable drainage tube 4 inside its cavity 301. The top side wall of the detachable drainage tube 4 has several side holes 8. The bottom of the double-lumen drainage tube 3 is connected to a distal single-lumen drainage tube 6. The bottom of the double-lumen drainage tube 3 and the top of the distal single-lumen drainage tube 6 are connected by a funnel-shaped connecting part 5.

[0022] The detachable drainage tube 4 is inserted into the first cavity 301, and the second cavity 302 of the proximal double-lumen drainage tube 3 collects the liquid leaking from the opening of the detachable drainage tube 4.

[0023] The distal single-lumen drainage tube 6 is equipped with a drainage tube clamp 7, which can be clamped to prevent leakage when the distal drainage bag is replaced.

[0024] The end of the distal single-lumen drainage tube 6 is connected to a negative pressure or normal pressure drainage bag to avoid wasting the original drainage tube.

[0025] The eccentric funnel connecting plate 2, the proximal double-lumen drainage tube 3, the detachable drainage tube 4, the funnel-shaped connecting part 5, and the distal single-lumen drainage tube 6 are all made of soft PE material with a thickness of 1-2mm.

[0026] The operation process of this invention is as follows:

[0027] In use, after peeling off the film on the surface of the annular self-adhesive base, it adheres tightly to the skin around the wound. The fluid from the wound is absorbed through the side hole 8 at the top of the detachable drainage tube 4. After passing through cavity one 301 and the funnel-shaped connecting part 5, it enters the distal single-lumen drainage tube 6. The exudate around the wound falls along the outer wall of the detachable drainage tube 4 to the bottom of the eccentric funnel connecting plate 2, and after passing through cavity two 302 and the funnel-shaped connecting part 5, it enters the distal single-lumen drainage tube 6.

[0028] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A double-lumen leak-proof drainage tube, characterized in that: The device includes an annular self-adhesive base plate (1) and an eccentric funnel connecting plate (2) located below the through hole in the middle of the annular self-adhesive base plate (1). A proximal double-lumen drainage tube (3) is connected below the outlet of the eccentric funnel connecting plate (2). A detachable drainage tube (4) is provided in the first cavity (301) of the proximal double-lumen drainage tube (3). Several side holes (8) are opened on the top side wall of the detachable drainage tube (4). A distal single-lumen drainage tube (6) is connected to the bottom of the double-lumen drainage tube (3). A drainage tube clamp (7) is provided on the distal single-lumen drainage tube (6). The end of the distal single-lumen drainage tube (6) is connected to a negative pressure or normal pressure drainage bag.

2. The double-lumen leak-proof drainage tube according to claim 1, characterized in that: The bottom of the double-lumen drainage tube (3) and the top of the distal single-lumen drainage tube (6) are connected by a funnel-shaped connector (5).

3. The double-lumen leak-proof drainage tube according to claim 2, characterized in that: The eccentric funnel connecting plate (2), the proximal double-lumen drainage tube (3), the detachable drainage tube (4), the funnel-shaped connecting part (5) and the distal single-lumen drainage tube (6) are all made of soft PE material with a thickness of 1-2mm.

4. The double-lumen leak-proof drainage tube according to claim 1, characterized in that: The surface of the annular self-adhesive base (1) is provided with self-adhesive, and a thin film is attached to the outside of the self-adhesive.

5. The double-lumen leak-proof drainage tube according to claim 1, characterized in that: The concave part of the eccentric funnel connecting plate (2) is biased to one side, and the concave part of the eccentric funnel connecting plate (2) is connected to the top of the proximal double-lumen drainage tube (3).

6. The double-lumen leak-proof drainage tube according to claim 1, characterized in that: The detachable drainage tube (4) is inserted into the first cavity (301), and the second cavity (302) of the proximal double-lumen drainage tube (3) collects the liquid leaking from the opening of the detachable drainage tube (4).