An ostomy bag matched with an enteroclysis catheter placed in an abdominal wall stoma

By incorporating a replaceable medical plastic bag and a screw-type connection on the side wall of the stoma bag, the problems of cumbersome replacement and spillage of existing stoma bags are solved, achieving rapid replacement and environmental protection.

CN224370072UActive Publication Date: 2026-06-19ZHEJIANG CANCER HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG CANCER HOSPITAL
Filing Date
2025-03-03
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing stoma bags are cumbersome to install and replace, and replacement can easily cause fecal leakage, polluting the environment.

Method used

A replaceable medical plastic bag is installed on the side wall of the stoma bag, which is connected by a screw structure and combined with a split plastic screw and nut to enable quick installation and replacement of the decompression tube.

Benefits of technology

It enables rapid replacement of the stoma bag, prevents contents from spilling out, and maintains a clean environment.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224370072U_ABST
    Figure CN224370072U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of medical technology, specifically to a stoma bag that matches an abdominal wall stoma insertion catheter for intestinal obstruction. It includes a base and a stoma bag. A through-hole is provided in the middle of the stoma bag, and an anti-backflow valve is installed at the through-hole to allow the passage of a pressure-reducing tube and a fixator. A split-type plastic screw and a split-type plastic screw cap are provided on the pressure-reducing tube. A perforation adapted to the abdominal wall stoma and abdominal wall is provided in the middle of the base. The stoma bag is shaped like an inverted bowl, with adhesive tape at its lower end to tightly adhere it to the base. A replaceable medical plastic bag is provided on the side wall of the stoma bag, and the medical plastic bag is connected to the stoma bag using a screw-in structure. This design solves the problems of cumbersome installation and replacement of existing stoma bags, and the potential for fecal leakage and environmental pollution during replacement.
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Description

Technical Field

[0001] This utility model relates to the field of medical technology, specifically to a stoma bag that matches an abdominal wall stoma for inserting an intestinal obstruction catheter. Background Technology

[0002] Artificial stoma surgery is becoming increasingly common among surgical patients. Post-operatively, patients use stoma bags to collect excrement produced during digestion. A Chinese utility model patent application with publication number CN212996961U discloses a novel stoma bag, comprising: a transparent bag, a base, and a stoma opening. By incorporating a control component and a delivery component, gas inside the transparent bag can be discharged through an exhaust pipe, preventing the stoma opening from loosening or peeling off from the skin due to increased gas, and avoiding stoma collapse due to increased pressure, thus reducing patient suffering. Furthermore, a filter membrane removes fecal matter and odor mixed in with the gas, preventing contamination during the procedure and protecting the surrounding environment. Simultaneously, water can be injected into the transparent bag through an injection pipe to clean the inside, maintaining cleanliness and hygiene.

[0003] However, the inventors discovered that in actual use, the existing stoma bags are cumbersome to install and replace, and are prone to causing sewage overflow during replacement, which pollutes the surrounding environment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a quick-replacement medical plastic bag on the side wall of the stoma bag. The medical plastic bag and the stoma bag are connected by a screw-in structure, which allows for convenient and quick replacement and prevents the contents from overflowing. This solves the problems of existing stoma bags being cumbersome to install and replace, and easily causing fecal leakage and pollution to the surrounding environment during replacement.

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution:

[0006] An abdominal wall stoma bag for inserting an intestinal obstruction catheter includes a base and a stoma bag. The stoma bag has a through-hole in the middle, and an anti-backflow valve is installed at the through-hole to allow the passage of a decompression tube and a fixator. A split-type plastic screw and a split-type plastic screw cap are installed on the decompression tube. The base has a perforation in the middle that matches the abdominal wall stoma opening and the abdominal wall. The stoma bag is shaped like an inverted bowl, with adhesive tape at its lower end to tightly adhere it to the base. A replaceable medical plastic bag is provided on the side wall of the stoma bag, and the medical plastic bag is connected to the stoma bag using a screw-in structure.

[0007] As a preferred embodiment, the cup-shaped height of the stoma bag is 3-4 cm.

[0008] As a preferred embodiment, the stoma bag is made of a medium-soft biocompatible material and has an antibacterial coating on the inside.

[0009] As a preferred embodiment, the stoma bag has threaded holes on its sidewalls for connecting a medical plastic bag.

[0010] Preferably, the diameter of the lower end of the stoma bag is the same as the diameter of the base.

[0011] As a preferred embodiment, the lower end of the base is provided with adhesive that fits tightly against the patient's abdominal wall.

[0012] As a preferred embodiment, the fixator is used to secure the catheter.

[0013] As another preferred embodiment, the separate plastic screw cap, catheter, and stoma bag are wrapped with medical tape.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this utility model, a replaceable medical plastic bag is provided on the side wall of the stoma bag. The medical plastic bag and the stoma bag are connected by a screw structure, which can facilitate quick replacement and prevent the contents from spilling out.

[0016] 2. In this utility model, a split-type plastic screw and a split-type plastic screw cap are provided on the pressure-reducing tube. The pressure-reducing tube is first inserted into the pressure-reducing tube by the split-type plastic screw, the anti-backflow valve is inserted into the ostomy bag, exposing the cylinder at the top, and the split-type plastic screw cap and the split-type plastic screw are tightened. The pressure-reducing tube can be installed and fixed by the split-type plastic screw cap and the split-type plastic screw, which is conducive to quick replacement of the pressure-reducing tube.

[0017] In summary, this device has advantages such as convenient and quick replacement of medical plastic bags, prevention of contents leakage, and quick replacement of decompression tubes, making it particularly suitable for the field of fistula bag technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a stoma bag that matches the intestinal obstruction catheter inserted into the abdominal wall stoma.

[0020] Figure 2 Rear view of the stoma bag that matches the intestinal obstruction catheter inserted into the abdominal wall stoma;

[0021] Figure 3 A cross-sectional diagram of a stoma bag designed to match the intestinal obstruction catheter inserted into the abdominal wall stoma.

[0022] Figure 4 This is a structural diagram of the base.

[0023] 1. Base; 2. Stoma bag; 3. Pressure relief tube; 4. Anti-backflow valve; 5. Adhesive tape; 6. Medical plastic bag; 7. Split plastic screw; 8. Split plastic screw cap; 9. Adhesive; 11. Perforation; 21. Through hole; 22. Threaded hole. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] Example 1

[0026] As shown in the figures, a stoma bag for inserting an intestinal obstruction catheter via an abdominal wall stoma includes a base 1 and a stoma bag 2. The stoma bag 2 has a through hole 21 in the middle, and an anti-backflow valve 4 is installed at the through hole 21 to allow the passage of a decompression tube 3 and a fixator. A split plastic screw 7 is provided on the decompression tube 3, and a split plastic screw cap 8 is provided on the split plastic screw 7. The base 1 has a perforation 11 in the middle that is adapted to the abdominal wall stoma and the abdominal wall. The stoma bag 2 is shaped like an inverted bowl, and an adhesive tape 5 is provided at its lower end to tightly adhere the stoma bag 2 to the base 1. A medical plastic bag 6 that can be quickly replaced is provided on the side wall of the stoma bag 2, and the medical plastic bag 6 is connected to the stoma bag 2 by a screw structure.

[0027] It is worth mentioning that by setting a quick-replaceable medical plastic bag 6 on the side wall of the stoma bag 2, and connecting the medical plastic bag 6 and the stoma bag 2 with a screw structure, it is easy to replace quickly and avoid the contents from spilling out.

[0028] As shown in the figure, the cup-shaped height of stoma bag 2 is 3-4cm.

[0029] In this example, the stoma bag 2 is set at this height, which is convenient for the patient's daily use and will not hinder the patient's daily life.

[0030] As shown in the figure, the stoma bag 2 is made of a medium-soft biocompatible material and is coated with an antibacterial coating inside.

[0031] In this example, the stoma bag 2 is made of a medium-soft biocompatible material to make it more comfortable for patients to use, prevent harder materials from injuring the patient's abdominal wall, and coat the inside with an antibacterial coating to prevent bacterial growth during use.

[0032] As shown in the figure, the side wall of the stoma bag 2 has a threaded hole 22 for connecting the medical plastic bag 6.

[0033] In this invention, the threaded hole 22 allows the medical plastic bag 6 to be quickly and easily connected to the side wall of the stoma bag 2.

[0034] As shown in the figure, the diameter of the lower end of the stoma bag 2 is the same as the diameter of the base.

[0035] As shown in the figure, the lower end of the base 1 is provided with adhesive 9 that fits tightly against the patient's abdominal wall.

[0036] As shown in the figure, the fixator is used to secure the catheter.

[0037] As shown in the figure, the split plastic screw cap 8, catheter and fistula bag 2 are wrapped with medical tape.

[0038] It is worth mentioning that by setting a split plastic screw 7 on the pressure reducing tube 3, and a split plastic screw cap 8 on the split plastic screw 7, the pressure reducing tube 3 is first inserted into the split plastic screw 7, the anti-backflow valve 4 is inserted into the stoma bag 2, exposing the cylinder above, and the split plastic screw cap 8 and the split plastic screw 7 are tightened. The pressure reducing tube 3 can be installed and fixed by the split plastic screw cap 8 and the split plastic screw 7, which is conducive to quick replacement of the pressure reducing tube 3.

[0039] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. An ostomy bag matched with an enteroclyse catheter placed through an abdominal stoma, comprising a base (1) and an ostomy bag (2), characterized in that: The stoma bag (2) has a through hole (21) in the middle. A backflow prevention valve (4) is installed in the through hole (21) to allow the pressure relief tube (3) and the fixator to pass through. A split plastic screw (7) is provided on the pressure relief tube (3). A split plastic screw cap (8) is provided on the split plastic screw (7). A perforation (11) adapted to the abdominal wall stoma and the abdominal wall is provided in the middle of the base (1). The stoma bag (2) is set in an inverted bowl shape. Adhesive tape (5) is provided at its lower end. The stoma bag (2) is tightly attached to the base (1) by the adhesive tape (5). A medical plastic bag (6) that can be quickly replaced is provided on the side wall of the stoma bag (2). The medical plastic bag (6) and the stoma bag (2) are connected by a screw structure.

2. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The cup-shaped height of the stoma bag (2) is 3-4 cm.

3. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The stoma bag (2) is made of a medium-soft biocompatible material and has an antibacterial coating inside.

4. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The stoma bag (2) has a threaded hole (22) on its side wall for connecting a medical plastic bag (6).

5. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The diameter of the lower end of the stoma bag (2) is the same as the diameter of the base.

6. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The lower end of the base (1) is provided with adhesive (9) that fits tightly against the patient's abdominal wall.

7. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The fixator is used to secure the catheter.

8. The stoma bag according to claim 1, which is compatible with the intestinal obstruction catheter inserted into the abdominal wall stoma, is characterized in that, The split plastic screw cap (8) is wrapped with medical tape, and the catheter and fistula bag (2) are fixed with medical tape.