CN-122005178-A - Colostomy bag with reflux prevention function

Abstract

The application relates to the technical field of medical equipment, in particular to a colostomy bag with a reflux prevention function, which comprises a colostomy bag, a buffering and shunting cavity, an ostomy chassis, a one-way sealing channel arranged at the bottom of the buffering and shunting cavity, a water suction cavity arranged below the one-way sealing channel, split water suction bags detachably arranged on two side walls of the water suction cavity, and a lower discharge port communicated with the bottom of the water suction cavity. The split type water absorbing bag in the water absorbing cavity solidifies liquid excrement through the water absorbing filling layer, eliminates fluidity from the source, realizes a second chemical barrier, and has a synergistic effect and reliable anti-reflux effect. The split type water absorption bag is arranged in the outer wall storage pocket and is communicated with the water absorption cavity through the water permeable layer, and the split type water absorption bag can be independently replaced after water absorption is saturated, so that the whole ostomy bag is not required to be discarded, the use cost is reduced, and medical waste is reduced.

Inventors

• WANG ZHIQIANG
• HONG FENG
• QUAN YINGJUN
• Luo dai
• XIE YAYUN
• WU XINYUAN

Assignees

• 上海市同仁医院

Dates

Publication Date

20260512

Application Date

20260402

Claims (8)

1. 1. The colostomy bag with the anti-reflux function is characterized by comprising a colostomy bag (1), a buffering shunt cavity (3) arranged in the colostomy bag (1), an ostomy chassis (2) communicated with the buffering shunt cavity (3), a one-way sealing channel (4) arranged at the bottom of the buffering shunt cavity (3), a water suction cavity (6) arranged below the one-way sealing channel (4), split water suction bags (5) detachably arranged on two side walls of the water suction cavity (6) and a lower discharge opening (7) communicated with the bottom of the water suction cavity (6); The colostomy bag (1) is characterized in that a storage pocket (12) is symmetrically arranged on the outer wall of the colostomy bag (1), the split type water absorbing bag (5) is arranged in the storage pocket (12), and a water permeable layer (11) is arranged on the side wall of the water absorbing cavity (6) corresponding to the split type water absorbing bag (5).
2. 2. The colostomy bag with anti-reflux function according to claim 1, wherein the water permeable layer (11) is uniformly provided with water permeable holes (111) for absorbing water.
3. 3. Colostomy bag with anti-reflux function according to claim 2, characterized in that the split water absorbing bag (5) is filled with a water absorbing filling layer.
4. 4. A colostomy bag with anti-reflux function according to claim 3, characterized in that the receiving pocket (12) is provided with a border seal (13) which facilitates opening and closing.
5. 5. Colostomy bag with anti-reflux function according to claim 1, characterized in that the suction chamber (6) is of a structure with a wide upper part and a narrow lower part.
6. 6. The colostomy bag with anti-reflux function according to claim 1, characterized in that an air exhaust mechanism (31) is arranged at the top of the buffering shunt cavity (3), and the air exhaust mechanism (31) is a carbon sheet air vent for air combing through the carbon sheet.
7. 7. The colostomy bag with the anti-reflux function according to claim 1, wherein the unidirectional sealing channel (4) comprises an expansion communication port (41) communicated with the bottom of the buffering shunt cavity (3) in a sealing way, an elastic flat sleeve (43) arranged below the expansion communication port (41) and an elastic guide inclined surface (42) communicated with the elastic flat sleeve (43) and the expansion communication port (41), the elastic flat sleeve (43) and the elastic guide inclined surface (42) are made of silica gel, and the elastic flat sleeve (43) is in a flat normally closed state when the colostomy bag is not used for defecation.
8. 8. Colostomy bag with anti-reflux function according to claim 7, characterized in that the water permeable layer (11) is level different from the bottommost part of the elastic cuff (43).

Description

Colostomy bag with reflux prevention function Technical Field The invention relates to the technical field of medical appliances, in particular to a colostomy bag with a reflux prevention function. Background Colostomy is a common surgical mode for treating colorectal cancer, inflammatory bowel disease and other diseases, and a patient needs to wear an ostomy bag for a long time after operation to collect excrement. The existing ostomy bag is mainly divided into a one-piece type and a two-piece type, and can meet the basic collection requirement, but has obvious defects in terms of reflux prevention, namely, when a patient changes a position (such as lying down and turning over) or the abdominal pressure is increased, liquid excretions in the bag easily flow back to the stoma to stimulate the skin around the stoma, and the problems of dermatitis, infection and the like are caused. In addition, the conventional ostomy bag is prone to overflow of excrement during replacement, and brings great inconvenience and psychological burden to patients and caregivers. In order to solve the problems, the prior art has an ostomy bag with a one-way valve or a water absorbing layer, but the one-way valve has poor passing property to formed excrement and is easy to block. Thus, there is a need for a colostomy bag that is rational in construction, reliable in anti-reflux effect and easy to replace. Disclosure of Invention The invention aims to provide a colostomy bag with a backflow prevention function, which solves the problems that liquid excrement of a conventional prior colostomy bag is easy to flow backwards and a one-way valve is easy to block. In order to solve the technical problems, the invention adopts the following technical scheme: The invention provides a colostomy bag with a reflux prevention function, which comprises a colostomy bag, a buffer diversion cavity arranged in the colostomy bag, an ostomy chassis communicated with the buffer diversion cavity, a one-way sealing channel arranged at the bottom of the buffer diversion cavity, a water suction cavity arranged below the one-way sealing channel, split water suction bags detachably arranged on two side walls of the water suction cavity, and a lower discharge port communicated with the bottom of the water suction cavity, wherein the water suction bag is arranged on the bottom of the water suction cavity; the outer wall of the colostomy bag is symmetrically provided with a storage pocket, the split type water absorbing bag is arranged in the storage pocket, and a water permeable layer is arranged on the side wall of the water absorbing cavity corresponding to the split type water absorbing bag. In this embodiment, further, water permeable holes for absorbing water are uniformly formed on the water permeable layer. In this embodiment, a water-absorbing filling layer is filled in the split water-absorbing bag. In still further embodiments, the storage pocket is provided with a locking edge seal that facilitates opening and closing. In this embodiment, the water suction cavity has a structure with a wide top and a narrow bottom. In still further embodiments, an exhaust mechanism is disposed at the top of the buffering and diverting cavity, where the exhaust mechanism is a carbon sheet air-dispersing hole and is used for carding air through the carbon sheet. In this embodiment, the unidirectional sealing channel further includes an expansion communication port hermetically communicated with the bottom of the buffering shunt cavity, an elastic flat sleeve disposed below the expansion communication port, and an elastic guiding inclined plane communicating the elastic flat sleeve and the expansion communication port, wherein the elastic flat sleeve and the elastic guiding inclined plane are made of silica gel, and the elastic flat sleeve is in a flat normally closed state when the user is not defecation. In this embodiment, a height difference exists between the permeable layer and the bottommost portion of the elastic flat sleeve. Compared with the prior art, the invention has the beneficial technical effects that: 1) The dual anti-reflux mechanism comprises a one-way sealing channel (elastic flat sleeve) for providing a first physical barrier for preventing the content of the water absorption cavity from flowing backwards, and a split water absorption bag in the water absorption cavity for solidifying liquid excrement through a water absorption filling layer, so that fluidity is eliminated from the source, a second chemical barrier is realized, the two chemical barriers cooperate with each other, and the anti-reflux effect is reliable. 2) The design of the replaceable water absorption bag is that the split water absorption bag is arranged in the outer wall storage pocket and is communicated with the water absorption cavity through the water permeable layer, and the split water absorption bag can be replaced independently after water absorption is saturated, so that