Ostomy bag easy to replace and operate

The ostomy bag, with its flexible base and threaded connection design, solves the problems of cumbersome installation, poor breathability, and inconvenient operation of existing ostomy bags. It simplifies operation, improves breathability and cleanliness, and enhances the quality of life for patients.

CN224251606UActive Publication Date: 2026-05-19SHENZHEN PUMP MEDICAL SYST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN PUMP MEDICAL SYST
Filing Date
2025-04-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing ostomy bag installation process is cumbersome, has poor breathability, requires frequent replacement which damages the skin, and is inconvenient for excretion and flushing operations, affecting the patient's quality of life and mental health.

Method used

An ostomy bag comprising a flexible base and a bag body has been designed. The base is detachably connected to the skin, and the bag body is sealed by a threaded connection. It is equipped with a flushing port and an excretion port, simplifying the operation process and reducing the risk of skin irritation and contamination.

Benefits of technology

It simplifies the installation process of ostomy bags, improves breathability and cleanliness, reduces the possibility of skin damage and hand contact with excrement, and enhances ease of use and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ostomy bag easy to replace and operate, and belongs to the technical field of medical instruments. The ostomy bag comprises a flexible base plate and a bag body. The base plate is fixed on the skin around the stoma, the bag body is detachably connected with the base plate, and when the stoma bag is replaced, only the bag body needs to be detached from the base plate, and the base plate can be replaced according to actual conditions. One end of the bag body is provided with a discharge port, and the other end is provided with a flushing port. The excretion opening is sealed in a threaded screwing mode, and when excreta reaches a certain amount and needs to be discharged, excretion operation can be carried out only by unscrewing the threaded cover. After excretion is completed, the sealing device of the flushing opening is opened, clear water enters the bag body through the flushing opening and is discharged out of the excretion opening, the inner wall of the bag body is flushed, and then the threaded cover is screwed. According to the scheme, the installation and replacement process of the ostomy bag is simplified, in the excretion operation process of a patient, the possibility that the hand makes contact with excrement is effectively reduced, and use convenience and cleanliness are improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an ostomy bag that is easy to replace and operate. Background Technology

[0002] Colorectal cancer or other intestinal diseases can lead to loss of anal function, usually requiring surgery to create a stoma in the abdominal wall. Post-surgery, the patient's feces will drain through this stoma, resulting in loss of normal bowel control. Traditionally, an ostomy bag is attached to the stoma to manage waste. However, current techniques have many inconveniences and drawbacks:

[0003] 1. Complex installation process: When using an ostomy bag, patients first need to cut the adhesive patch on the ostomy bag according to the shape of their stoma, then fill the area around the stoma with leak-proof ointment, and finally attach the adhesive patch to the skin. This series of operations is quite cumbersome, increasing the difficulty and time cost for users.

[0004] 2. Poor material breathability: Commercially available adhesive patches are usually made of thicker materials, resulting in poor breathability. For patients with uneven skin, these patches are difficult to apply tightly, easily leading to leakage and further affecting the user experience.

[0005] 3. Frequent skin replacement: Each time the ostomy bag is changed, the adhesive side adhering to the skin around the stoma must be removed, and the skin must be cleaned and disinfected before a new ostomy bag is reattached. Repeatedly performing this procedure can easily damage the skin around the stoma, increasing the risk of infection and causing discomfort.

[0006] 4. Inconvenient excretion and flushing procedures: Due to the irregularity of bowel movements through the stoma, excrement may be discharged and stored in the ostomy bag at any time. When a certain amount of excrement is discharged, the sealing clip at the bottom opening of the ostomy bag must be manually removed for drainage. After drainage, the ostomy bag must be thoroughly flushed and the sealing clip re-tightened. During this process, the operator's hands are easily contaminated with excrement, causing inconvenience to the patient's life and negatively impacting their psychological state.

[0007] In view of the above problems, there is an urgent need for a new ostomy bag design that can simplify the installation process, improve the convenience and comfort of use, reduce damage to the skin around the stoma, and reduce the risk of contamination during the operation, so as to improve the patient's quality of life and mental health. Utility Model Content

[0008] This invention addresses the aforementioned problems by providing an ostomy bag solution that is easy to replace and simple to operate.

[0009] The present invention provides an easy-to-replace and easy-to-operate ostomy bag, which includes a base plate and a bag body;

[0010] The bag includes a discharge port sealing device, a flushing port sealing device, a waterproof membrane, and a bag body; the bag body is used to contain excrement.

[0011] The chassis is made of a flexible material. One side of the chassis is connected to the skin around the stoma, and the other side is detachably connected to the bag body through the waterproof membrane.

[0012] The base, the waterproof membrane, and the side of the bag body closest to the base are all provided with through holes through which the ostomy can pass;

[0013] The upper end of the bag body away from the chassis is provided with a rinsing port and a vent, and the lower end of the bag body is provided with a drain port; the rinsing port is used to rinse the inside of the bag body; the vent is used to expel gas from the bag body; the drain port is used to discharge excrement from the bag body, and the drain port sealing device is connected to the drain port and seals the drain port by means of threaded connection.

[0014] In the easily replaceable and easy-to-operate ostomy bag of this utility model, the base plate includes a waterproof and breathable membrane coated with medical adhesive and a plastic film. The inner surface of the waterproof and breathable membrane is pasted on the skin around the stoma, and the outer surface is connected to the inner surface of the plastic film. The outer surface of the plastic film is connected to the bag body.

[0015] The waterproof and breathable membrane and the plastic membrane are respectively provided with a first through hole and a second through hole for the stoma to pass through.

[0016] In the easily replaceable and easy-to-operate ostomy bag of this utility model, the bag body includes a plastic tubing, a first plastic film, and a second plastic film;

[0017] The plastic hose, the first plastic film, and the second plastic film are pressed together, and the second plastic film and the flushing port sealing device are pressed together;

[0018] The first plastic film and the second plastic film enclose a chamber to contain excrement. The plastic hose is located at the opening at one end of the chamber and has a hollow structure. The first plastic film is connected to one side of the waterproof membrane, and the other side of the waterproof membrane is connected to the chassis. The second plastic film is provided with a flushing port, and the flushing port sealing device is located outside the flushing port.

[0019] In the easily replaceable and easy-to-operate ostomy bag of this utility model, the first plastic film is provided with a fourth through hole for the ostomy opening to pass through; the waterproof film is provided with a third through hole at a position opposite to the fourth through hole.

[0020] In the easily replaceable and easy-to-operate ostomy bag of this utility model, the second plastic film is provided with an exhaust hole; a carbon felt and a liquid-repellent and breathable membrane are sequentially attached to the outside of the exhaust hole; the carbon felt is used to absorb the odor of the excrement, and the size of the liquid-repellent and breathable membrane is larger than the size of the carbon felt.

[0021] In the easily replaceable and easy-to-operate ostomy bag of this utility model, the discharge port sealing device includes a threaded cap and a plastic threaded straight-through.

[0022] One end of the plastic threaded tube is connected to the plastic hose via an interference fit, and the other end is threadedly connected to the threaded cap.

[0023] In the easily replaceable and easy-to-operate ostomy bag of this utility model, the rinsing port sealing device is an integrally molded rubber plug.

[0024] This invention offers the following advantages: The ostomy bag comprises a flexible base and a bag body. The flexible base is fixed to the skin around the stoma and conforms well to the skin, eliminating the need for the patient to cut the base to fit their stoma shape. The bag body and flexible base are detachably connected, allowing the bag body to be removed from the base when changing the ostomy bag, while the base can be replaced as needed. Furthermore, one end of the bag body has a drain port, and the other end has a flushing port. The drain port is sealed with a threaded connection, which is more convenient and reliable than traditional sealing clips. When a certain amount of excrement needs to be discharged, simply unscrew the threaded cap to perform the discharge. After discharge, the flushing port can be opened to allow clean water to enter the bag body through the flushing port and exit through the drain port, effectively flushing and cleaning the inner wall of the bag. The threaded cap can then be tightened back to its original position. This solution simplifies the ostomy bag installation process, avoids the cumbersome operation of removing the entire device from the skin adhesive surface every time the ostomy bag is changed, reduces the risk of irritation and infection to the skin around the stoma, and effectively reduces the possibility of hand contact with excrement during patient excretion operations, improving ease of use and cleanliness. Attached Figure Description

[0025] Figure 1 A schematic diagram of the reverse side structure of the ostomy bag provided in an embodiment of this utility model.

[0026] Figure 2 This is a front structural diagram of the ostomy bag provided in an embodiment of the present invention.

[0027] Figure 3 This is an exploded view of the ostomy bag provided in an embodiment of the present invention.

[0028] In the attached diagram:

[0029] 100. Chassis; 101. Waterproof and breathable membrane; 102. Plastic membrane.

[0030] 200. Bag body; 201. Rinse port; 202. Vent hole; 203. Drain port; 210. Drain port sealing device; 211. Threaded cap; 212. Plastic threaded straight pipe;

[0031] 220. Bag body; 221. Plastic tubing; 2222. First plastic film; 2222. Second plastic film; 223. Rinse port sealing device; 230. Waterproof membrane; 240. Liquid-repellent and breathable membrane; 250. Carbon felt;

[0032] 301, First through hole; 302, Second through hole; 303, Third through hole; 304, Fourth through hole. Detailed Implementation

[0033] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figures 1-3 As shown, this utility model embodiment provides an easy-to-replace and easy-to-operate ostomy bag, which includes a base plate 100 and a bag body 200; the bag body 200 includes an excretion port sealing device 210, an irrigation port sealing device 223, a waterproof membrane 230, and a bag body 220; the bag body 220 is used to contain excrement; the base plate 100 is made of a flexible material, one side of the base plate 100 is connected to the skin around the stoma, and the other side is detachably connected to the bag body 220 through the waterproof membrane 230; the base plate 100, the waterproof membrane 230, and the bag body 220... Each side of the bag body 220 near the base 100 is provided with a through hole for the stoma to pass through; the upper end of the side of the bag body 220 away from the base 100 is provided with a flushing port 201 and a venting port 202, and the lower end of the bag body 220 is provided with a discharge port 203; the flushing port 201 is used to flush the inside of the bag body 220; the venting port 202 is used to expel gas from the body; the discharge port 203 is used to discharge excrement from the bag body 220, and the discharge port sealing device 210 is connected to the discharge port 203 and seals the discharge port 203 by means of threaded connection.

[0035] This utility model embodiment of the ostomy bag includes a flexible base plate and a bag body. The flexible base plate is fixed to the skin around the stoma and conforms well to the skin, eliminating the need for the patient to cut the base plate according to their stoma shape. The bag body and the flexible base plate are detachably connected, so when changing the ostomy bag, only the bag body needs to be removed from the base plate, while the base plate can be replaced as needed. This design avoids the cumbersome operation of removing the entire ostomy bag from the skin-adhesive surface every time the ostomy bag is changed, reducing the risk of irritation and infection to the skin around the stoma. In addition, one end of the bag body is provided with a drain port, and the other end is provided with a flushing port. The drain port is sealed with a threaded connection, which is more convenient and reliable than traditional sealing clips. When the excrement reaches a certain amount and needs to be discharged, simply unscrew the threaded cap to perform the discharge operation. After discharge, the sealing device of the flushing port can be opened to allow clean water to enter the bag body through the flushing port and discharge from the drain port, achieving effective flushing and cleaning of the inner wall of the bag. Afterwards, the threaded cap is tightened back to its original position. This structural design effectively reduces the possibility of hand contact with excrement during patient defecation, improving ease of use and cleanliness.

[0036] In this embodiment of the present invention, the chassis 100 includes a waterproof and breathable membrane 101 coated with medical adhesive and a plastic membrane 102. The inner surface of the waterproof and breathable membrane 101 is adhered to the skin around the stoma, and the outer surface is connected to the inner surface of the plastic membrane 102. The outer surface of the plastic membrane 102 is connected to the bag body 200. The waterproof and breathable membrane 101 and the plastic membrane 102 are respectively provided with a first through hole 301 and a second through hole 302 for the stoma to pass through.

[0037] In this embodiment of the utility model, the fixing methods between the waterproof and breathable membrane 101 and the plastic film 102 include adhesive bonding and physical heat pressing.

[0038] In this embodiment of the invention, the chassis has a two-layer structure. The waterproof and breathable membrane 101 is an ultra-thin, soft, waterproof and breathable membrane that can conform well to the skin even if the skin around the stoma is not smooth. The plastic membrane 102 has a certain degree of rigidity and support, and is used to provide shaping support. The waterproof and breathable membrane 101 and the plastic membrane 102 are fixedly connected to form a whole by means of adhesive or physical heat pressing.

[0039] like Figure 3As shown in the embodiment of this utility model, the bag body 220 includes a plastic hose 221, a first plastic film 2221, and a second plastic film 2222; the plastic hose 221, the first plastic film 2221, and the second plastic film 2222 are pressed together, and the second plastic film 2222 and the flushing port sealing device 223 are pressed together; the first plastic film 2221 and the second plastic film 2222 enclose a chamber for containing excrement, the plastic hose 221 is located at the opening at one end of the chamber, and the plastic hose 221 has a hollow structure; the first plastic film 2221 is connected to one side of the waterproof membrane 230, and the other side of the waterproof membrane 230 is connected to the base 100; a flushing port 201 is provided on the second plastic film 2222, and the flushing port sealing device 223 is located outside the flushing port 201.

[0040] like Figure 3 As shown in this embodiment of the invention, the flushing port sealing device 223 is an integrally molded rubber stopper. One end of the rubber stopper is pressed against the periphery of the flushing port 201 and has a cavity for accommodating the stopper portion. The other end contains the stopper portion, and the stopper portion and the cavity are tightly connected by an interference fit. This structural design, where the rubber stopper is directly pressed against the periphery of the flushing port 201 and the stopper portion and the cavity are tightly connected by an interference fit, ensures that the rubber stopper can be securely fixed around the flushing port, preventing leakage. Furthermore, the integrally molded design of the rubber stopper not only improves the sealing performance but also prevents the rubber stopper from being lost during replacement and flushing.

[0041] It is understood that the flushing port sealing device 223 may also adopt other structures, such as a threaded cap and thread mating structure, and this embodiment of the present invention is not limited in this respect.

[0042] In this embodiment of the invention, the first plastic film 2221 is provided with a fourth through hole 304 for the stoma to pass through; the waterproof membrane 230 is provided with a third through hole 303 opposite to the fourth through hole 304. The inner surface of the waterproof membrane 230 is adhered to the outer surface of the plastic film 102, and the outer surface is connected to the first plastic film 2221. After both sides are connected, the centers of the first through hole 301, the second through hole 302, the third through hole 303, and the fourth through hole 304 are aligned, and the stoma passes through the first through hole 301, the second through hole 302, the third through hole 303, and the fourth through hole 304 in sequence. When changing the ostomy bag, the bag body 200 and the base plate 100 can be separated from each other between the plastic film 102 and the waterproof membrane 230.

[0043] In this embodiment of the invention, the second plastic film 2222 is further provided with an exhaust hole 202; a carbon felt 250 and a hydrophobic and breathable membrane 240 are sequentially attached to the outside of the exhaust hole 202; the carbon felt 250 is used to absorb the odor of excrement, and the size of the hydrophobic and breathable membrane 240 is larger than the size of the carbon felt 250. The hydrophobic and breathable membrane 240 is used to fix the carbon felt 250 outside the exhaust hole 202, and to discharge gas from the bag 200 and prevent liquid leakage from the bag 200. With intestinal peristalsis, gas will be discharged from the stoma from time to time. Through the structural design of the exhaust hole 202, carbon felt 250 and hydrophobic and breathable membrane 240, this embodiment of the invention can effectively absorb gas and odor in excrement, and discharge the gas to the outside of the stoma bag, thereby significantly improving the user experience.

[0044] In this embodiment of the present invention, the drain sealing device 210 includes a threaded cap 211 and a plastic threaded straight connector 212; one end of the plastic threaded straight connector 212 is connected to the plastic hose 221 by an interference fit, and the other end is threadedly connected to the threaded cap 211. Specifically, one end of the plastic threaded straight connector 212 is connected to the plastic hose 221 by an interference fit, and the other end is provided with a threaded structure and is threadedly connected to the threaded cap 211.

[0045] In some other embodiments of this utility model, the portion of the plastic hose 221 located outside the bag body 200 is provided with threads, and the discharge port sealing device 210 is a threaded cap.

[0046] In this embodiment of the invention, the discharge port sealing device 210 uses a threaded connection for sealing. When the amount of excrement reaches a certain level and needs to be discharged, the threaded cap can be manually unscrewed for discharge. After cleaning the bag, the threaded cap can be put back on. This method is more convenient and hygienic than using a sealing clip.

[0047] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many modifications under the guidance of the present invention without departing from the spirit and scope of the claims. All of these modifications are within the protection scope of the present invention.

Claims

1. An easily replaceable and easy-to-use ostomy bag, characterized in that, The ostomy bag includes a base plate (100) and a bag body (200); The bag body (200) includes an excretion outlet sealing device (210), a flushing outlet sealing device (223), a waterproof membrane (230), and a bag body (220); the bag body (220) is used to contain excrement; The chassis (100) is made of a flexible material. One side of the chassis (100) is connected to the skin around the stoma, and the other side is detachably connected to the bag body (220) through the waterproof membrane (230). The base (100), the waterproof membrane (230), and the bag body (220) are all provided with through holes on the side of the base (100) that allow the stoma to pass through; The upper end of the side of the bag body (220) away from the chassis (100) is provided with a rinsing port (201) and a vent (202), and the lower end of the bag body (220) is provided with a drain port (203). The rinsing port (201) is used to rinse the inside of the bag body (220). The vent (202) is used to expel gas from the body. The drain port (203) is used to discharge excrement from the bag body (220). The drain port sealing device (210) is connected to the drain port (203) and the drain port (203) is sealed by a threaded connection.

2. The easily replaceable and easy-to-operate ostomy bag according to claim 1, characterized in that, The chassis (100) includes a waterproof and breathable membrane (101) coated with medical adhesive and a plastic membrane (102). The inner surface of the waterproof and breathable membrane (101) is adhered to the skin around the stoma, and the outer surface is connected to the inner surface of the plastic membrane (102). The outer surface of the plastic membrane (102) is connected to the bag body (200). The waterproof and breathable membrane (101) and the plastic membrane (102) are respectively provided with a first through hole (301) and a second through hole (302) for the stoma to pass through.

3. The easily replaceable and easy-to-operate ostomy bag according to claim 1, characterized in that, The bag body (220) includes a plastic tube (221), a first plastic film (2221), and a second plastic film (2222); The plastic hose (221), the first plastic film (2221) and the second plastic film (2222) are pressed together, and the second plastic film (2222) and the flushing port sealing device (223) are pressed together; The first plastic film (2221) and the second plastic film (2222) enclose a chamber for containing excrement. The plastic hose (221) is located at the opening at one end of the chamber and has a hollow structure. The first plastic film (2221) is connected to one side of the waterproof membrane (230), and the other side of the waterproof membrane (230) is connected to the chassis (100). The second plastic film (2222) is provided with a flushing port (201), and the flushing port sealing device (223) is located outside the flushing port (201).

4. The easily replaceable and easy-to-operate ostomy bag according to claim 3, characterized in that, The first plastic film (2221) is provided with a fourth through hole (304) for the stoma to pass through; the waterproof membrane (230) is provided with a third through hole (303) at a position opposite to the fourth through hole (304).

5. The easily replaceable and easy-to-operate ostomy bag according to claim 3, characterized in that, The second plastic film (2222) is provided with an exhaust hole (202); a carbon felt (250) and a liquid-repellent breathable membrane (240) are sequentially attached to the outside of the exhaust hole (202); the carbon felt (250) is used to absorb the odor of excrement, and the size of the liquid-repellent breathable membrane (240) is larger than the size of the carbon felt (250).

6. The easily replaceable and easy-to-operate ostomy bag according to claim 3, characterized in that, The discharge port sealing device (210) includes a threaded cap (211) and a plastic threaded straight-through (212); One end of the plastic threaded straight tube (212) is connected to the plastic hose (221) by an interference fit, and the other end is threaded to the threaded cap (211).

7. The easily replaceable and easy-to-operate ostomy bag according to claim 3, characterized in that, The flushing port sealing device (223) is an integrally formed rubber stopper.