Excrement drainage bag

By introducing a protective airbag into the fecal drainage bag and using a locking valve to control the gas flow, the problem of backflow caused by external pressure on the bag is solved, thus achieving stable use of the drainage bag and patient comfort.

CN224220490UActive Publication Date: 2026-05-12NANCHANG ZHONGSHEN MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANCHANG ZHONGSHEN MEDICAL INSTR CO LTD
Filing Date
2025-04-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing disposable fecal drainage bags are prone to backflow of feces due to external pressure during use, which affects their effectiveness.

Method used

A fecal drainage bag was designed, comprising a bag body and a protective air bladder, which are connected by a connecting tube. Gas is introduced from the bag body into the protective air bladder using a locking valve, which inflates the protective air bladder to surround the bag body, preventing external forces from acting directly on the bag body and preventing backflow.

Benefits of technology

It effectively prevents fecal backflow, ensuring the normal use of the drainage bag and the patient's comfort, and avoiding fecal backflow inside the bag caused by external pressure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an excrement drainage bag which comprises a bag body assembly, the bag body assembly comprises a bag body and a protective air bag arranged on the bag body, the protective air bag is connected with the bag body through a connecting pipe, the connecting pipe is respectively communicated with the protective air bag and the bag body, and a locking valve is arranged on the connecting pipe; the tube body assembly is detachably arranged at one end of the bag body, and the tube body assembly comprises an extension tube detachably arranged at one end of the bag body and a sampling opening formed in the extension tube; the two sides of the bag body are arranged in a sunken mode, the protection air bag is arranged at the bottom of the bag body, the two ends of the protection air bag extend upwards along the edges of the two sides of the bag body till the protection air bag extends into the sunken position of the bag body, external force acts on the protection air bag firstly through the bulging height difference of the bag body and the protection air bag, and then the backflow situation is avoided.
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Description

Technical Field

[0001] This utility model belongs to the technical field of medical devices, specifically relating to a fecal drainage bag. Background Technology

[0002] A fecal drainage bag is a medical device used to collect and drain a patient's excrement. It typically consists of a drainage bag, a drainage tube, and other components. The drainage bag is the container for collecting excrement and usually has a certain capacity, which can be replaced as needed. The drainage tube is the tube connecting the patient's anus to the drainage bag; it usually has a certain length and flexibility to ensure patient comfort. Depending on the specific needs, fecal drainage bags can be divided into several types, such as disposable and reusable.

[0003] In practice, the existing disposable fecal drainage bags are usually suspended next to the bedside and the drainage tube is connected to the patient's anus. However, during actual use, the feces inside the bag are often prone to backflow due to external pressure. For example, when medical staff are changing dressings or performing other medical work, their bodies or legs may squeeze the bag, thus affecting the normal use of the fecal drainage bag. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a fecal drainage bag to solve the problems described in the background section.

[0005] This utility model provides the following technical solution: a fecal drainage bag, comprising:

[0006] A bag assembly, comprising a bag body and a protective airbag disposed on the bag body, wherein the protective airbag and the bag body are connected by a connecting pipe, the connecting pipe being connected to the protective airbag and the bag body respectively, and a locking valve is provided on the connecting pipe;

[0007] The tube assembly is detachably attached to one end of the bag body. The tube assembly includes an extension tube detachably attached to one end of the bag body and a sampling port provided on the extension tube.

[0008] The two sides of the bag are recessed, and the protective airbag is located at the bottom of the bag, with both ends of the protective airbag extending upward along the two side edges of the bag until they reach into the recess of the bag.

[0009] Compared with the prior art, the beneficial effects of this application are as follows: In actual use, a certain amount of gas can be injected into the bag body through one end, and the air in the bag body can be introduced into the protective airbag through the connecting tube by compression. Then, the locking valve prevents the air from leaking, which allows the protective airbag to inflate. Through the enclosing relationship between the protective airbag and the bag body, the inflated protective airbag can protect the bag body. Furthermore, the height difference between the bag body and the protective airbag ensures that the external force acts on the protective airbag first, thereby preventing backflow.

[0010] Preferably, the bag body is provided with a first interface, the protective airbag is provided with a second interface, and the two ends of the connecting tube are detachably connected to the first interface and the second interface, respectively.

[0011] Preferably, the first interface is located on the side of the bag body near the bottom, and the second interface is located on the side of the protective airbag near the bottom.

[0012] Preferably, a male connector is fixed to the top of the bag body, and a female connector corresponding to the male connector is provided at one end of the extension tube.

[0013] Preferably, an airbag is fixed to the end of the extension tube away from the bag body.

[0014] Preferably, one side of the extension tube is connected to several functional interfaces.

[0015] Preferably, the functional interfaces are three: an airbag interface, a flushing interface, and a drug delivery interface. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 A perspective view of the fecal drainage bag provided in an embodiment of this utility model;

[0018] Figure 2 A perspective view of the bag assembly provided in an embodiment of this utility model;

[0019] Figure 3 A perspective view of the tube assembly provided in an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] bag assembly 1 bag body 11 Protective airbags 12 Male connector 13 Connecting pipe 14 First Interface 15 Second interface 16 Lock-up valve 17 Pipe assembly 2 extension tube 21 female connector 22 Functional Interface 23 Sampling port 24 Prevent airbag 25

[0022] The present invention will be further described below with reference to the accompanying drawings and description. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] In one embodiment of this utility model, such as Figure 1-3 As shown, a fecal drainage bag includes:

[0028] Bag assembly 1, the bag assembly 1 includes a bag body 11 and a protective airbag 12 disposed on the bag body 11. The protective airbag 12 and the bag body 11 are connected by a connecting pipe 14. The connecting pipe 14 is respectively connected to the protective airbag 12 and the bag body 11. A locking valve 17 is provided on the connecting pipe 14.

[0029] Specifically, the bag 11 is mainly used to contain feces or excrement, and both the bag 11 and the protective airbag 12 are hollow. In fact, the bag 11 and the protective airbag 12 are integrally formed. Two relatively independent spaces can be obtained by pressing a large complete bag along the connecting line between the bag 11 and the protective airbag 12. Both the bag 11 and the protective airbag 12 can be made of medical PVC material. The connecting tube 14 is specifically used to connect the space of the bag 11 and the space of the protective airbag 12 so that the air in the bag 11 can be squeezed into the protective airbag 12.

[0030] The tube assembly 2 is detachably attached to one end of the bag body 11. The tube assembly 2 includes an extension tube 21 detachably attached to one end of the bag body 11 and a sampling port 24 provided on the extension tube 21.

[0031] Specifically, the extension tube 21 serves as a drainage tube in this application, through which excrement or secretions are drained out of the body. Due to gravity and the slope of the extension tube 21, the excrement or secretions can flow naturally into the bag 11, which has good sealing performance and effectively prevents backflow of excrement or secretions and leakage of odor.

[0032] The two sides of the bag body 11 are recessed, and the protective airbag 12 is disposed at the bottom of the bag body 11, with both ends of the protective airbag 12 extending upward along the two side edges of the bag body until they penetrate into the recess of the bag body 11.

[0033] Specifically, the bag body 11 is shaped like a gourd, with corresponding recesses on both sides. The protective airbags 12 are first distributed along the bottom edge of the bag body 11, and then extend upwards from both ends along the two sides of the bag body 11 until they reach the recesses of the bag body 11. In other words, the protective airbags 12 can surround the bag body 11 over a large area, effectively improving the protective strength of the protective airbags 12 and ensuring that external forces act on the protective airbags 12 first as much as possible.

[0034] Meanwhile, after the drainage bag leaves the factory, the bag body assembly 1 and the tube body assembly 2 are set separately. Before actual use, gas can be filled into the bag body 11 through the opening at the top of the bag body 11. Then, the locking valve 17 is opened, and the gas in the bag body 11 is filled into the protective airbag 12 through the connecting tube 14. When the protective airbag 12 inflates to a certain extent, the locking valve 17 can be closed. The locking valve 17 can prevent the gas in the protective airbag 12 from flowing back into the bag body 11 and can also prevent the fecal excrement in the bag body 11 from entering the protective airbag 12. Then, the normal fecal drainage and collection process can be carried out.

[0035] In this embodiment, the bag body 11 is provided with a first interface 15, the protective airbag 12 is provided with a second interface 16, and the two ends of the connecting tube 14 are detachably connected to the first interface 15 and the second interface 16, respectively.

[0036] Specifically, the connecting tube 14, the first interface 15, and the second interface 16 are all detachable. After the bag body 11 is used up, the first interface 15 can be used as a temporary sampling port, while the gas in the protective airbag 12 can be discharged through the second interface 16, reducing the volume of the entire drainage bag.

[0037] In this embodiment, the first interface 15 is disposed on the side of the bag body 11 near the bottom, and the second interface 16 is disposed on the side of the protective airbag 12 near the bottom.

[0038] Specifically, by defining the positions of the first interface 15 and the second interface 16, it is easier to purge gas while also shortening the length of the connecting tube 14.

[0039] In this embodiment, a male connector 13 is fixed to the top of the bag body 11, and a female connector 22 corresponding to the male connector 13 is provided at one end of the extension tube 21.

[0040] Specifically, the male connector 13 and the female connector 22 are detachable, and the male connector 13 has a larger aperture, which makes it easier to fill the bag 11 with gas.

[0041] In this embodiment, an airbag 25 is fixed to the end of the extension tube 21 away from the bag body 11;

[0042] Specifically, the end of the extension tube 21 away from the bag body 11 needs to be inserted into the patient's anus. Therefore, in order to prevent the airbag 25 from inflating, its expansion exceeds the range that the anal sphincter can accommodate. The strong friction and expansion force make the airbag 25 tightly stuck in the anus, preventing it from falling off on its own.

[0043] In this embodiment, a number of functional interfaces 23 are connected to one side of the extension tube 21.

[0044] In this embodiment, there are three functional interfaces 23, namely, an airbag interface, a flushing interface, and a drug delivery interface;

[0045] Specifically, the three functional interfaces 23 are connected to three small tubes, all of which are set inside the extension tube 21 and have their ends set at the ends of the extension tube 21. The airbag interface is used to prevent the airbag 25 from inflating, the flushing interface is used for flushing, and the drug delivery interface is used for drug delivery.

[0046] In summary, the fecal drainage bag in the above embodiments of this utility model, when actually used in this application, allows a certain amount of gas to be injected into the bag body 11 through one end, and the air in the bag body 11 is then introduced into the protective airbag 12 through the connecting pipe 14 by compression. After that, the locking valve 17 prevents air leakage, thereby causing the protective airbag 12 to inflate. Through the enclosing relationship between the protective airbag 12 and the bag body 11, the inflated protective airbag 12 can protect the bag body 11. Furthermore, the height difference between the inflated bag body 11 and the protective airbag 12 ensures that external force is first applied to the protective airbag 12, thereby preventing backflow.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fecal drainage bag, characterized in that, include: A bag assembly, comprising a bag body and a protective airbag disposed on the bag body, wherein the protective airbag and the bag body are connected by a connecting pipe, the connecting pipe being connected to the protective airbag and the bag body respectively, and a locking valve is provided on the connecting pipe; The tube assembly is detachably attached to one end of the bag body. The tube assembly includes an extension tube detachably attached to one end of the bag body and a sampling port provided on the extension tube. The two sides of the bag are recessed, and the protective airbag is located at the bottom of the bag, with both ends of the protective airbag extending upward along the two side edges of the bag until they reach into the recess of the bag.

2. The fecal drainage bag according to claim 1, characterized in that, The bag body is provided with a first interface, the protective airbag is provided with a second interface, and the two ends of the connecting tube are detachably connected to the first interface and the second interface, respectively.

3. The fecal drainage bag according to claim 2, characterized in that, The first interface is located on the side of the bag body near the bottom, and the second interface is located on the side of the protective airbag near the bottom.

4. The fecal drainage bag according to claim 1, characterized in that, A male connector is fixed to the top of the bag body, and a female connector corresponding to the male connector is provided at one end of the extension tube.

5. The fecal drainage bag according to claim 1, characterized in that, An airbag is fixed to the end of the extension tube away from the bag body.

6. The fecal drainage bag according to claim 1, characterized in that, Several functional interfaces are connected to one side of the extension tube.

7. The fecal drainage bag according to claim 6, characterized in that, There are three functional interfaces: airbag interface, flushing interface, and drug delivery interface.