Closure structure for an ostomy bag

By integrating venting and flushing structures into the ostomy bag and employing a multi-functional cap and adapter ring design, the problems of structural complexity and production cost have been solved, resulting in simplified manufacturing and improved patient comfort.

CN224269559UActive Publication Date: 2026-05-26ZHEJIANG LONGTERM MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LONGTERM MEDICAL TECH CO LTD
Filing Date
2024-12-13
Publication Date
2026-05-26

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Abstract

This application discloses a sealing structure for an ostomy bag, which includes a bag body with a cavity. The sealing structure includes an adapter ring, a multi-functional cap, and a filter. The adapter ring is fixedly mounted on the bag body and has a flushing hole communicating with the bag body. The multi-functional cap is detachably mounted on the adapter ring and includes a cap cavity communicating with the bag body, and an exhaust hole communicating with the cap cavity for discharging gas from the bag cavity. The filter is disposed within the cap cavity and filters the gas when it is vented from the bag cavity through the exhaust hole. This sealing structure integrates the existing exhaust and flushing structures of ostomy bags, reducing the structural complexity and production cost of the ostomy bag.
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Description

Technical Field

[0001] The embodiments of this utility model relate to the field of ostomy bag technology, and more specifically, this utility model relates to a sealing structure for an ostomy bag. Background Technology

[0002] An ostomy bag is a commonly used medical device primarily for collecting and managing a patient's waste, especially for those undergoing an enterostomy. An ostomy bag consists of a bag body with a cavity for collecting waste, a connecting component on the bag body for connecting the bag body to the patient's stoma, and a fixing component on the bag body for securing the bag to the patient's body.

[0003] Because excrement contains gas, existing ostomy bags typically have a venting structure connected to the bag cavity to prevent bloating after prolonged use. This allows for proper venting when necessary. Furthermore, after a period of use, the bag needs to be cleaned, so existing ostomy bags usually also have a flushing structure to ensure hygiene. However, the separate venting and flushing structures require more precise design to ensure that the position, size, and shape of the two holes in each structure meet usage requirements while avoiding interference. This increases the structural complexity and production cost of the ostomy bag. Utility Model Content

[0004] To address one or more of the technical problems mentioned above, this invention provides a sealing structure for an ostomy bag that integrates the existing venting and flushing structures of the ostomy bag, thereby reducing the structural complexity and production cost of the ostomy bag.

[0005] This utility model embodiment provides a sealing structure for an ostomy bag. The ostomy bag includes a bag body with a bag cavity. The sealing structure includes: a connecting ring, which is fixedly disposed on the bag body and has a rinsing hole communicating with the bag body; a multi-functional cap, which is detachably disposed on the connecting ring and includes a cap cavity communicating with the bag body and an exhaust hole communicating with the cap cavity for discharging gas from the bag cavity; and a filter sheet, which is disposed in the cap cavity and can filter the gas in the bag cavity when the exhaust hole discharges gas from the bag cavity.

[0006] Furthermore, the multifunctional cover includes a first cover body detachably covered on the adapter ring, and a second cover body detachably covered on the first cover body. The cover cavity is formed between the first cover body and the second cover body and can communicate with the bag cavity through a channel provided on the first cover body. The vent hole is provided on the second cover body.

[0007] Furthermore, the connection between the first cover and the adapter ring is a snap-fit ​​or threaded connection, and the connection between the second cover and the first cover is a snap-fit ​​or threaded connection.

[0008] Furthermore, the volume of the cover cavity is greater than the volume of the filter element, and the cover cavity includes a first portion formed within the first cover body and connected to the channel, and a second portion formed within the second cover body and connected to the vent hole, wherein the first portion and / or the second portion is used to accommodate the filter element.

[0009] Furthermore, an annular boss with an annular groove is provided on the edge of the second cover near the first cover, and an annular latch is provided on the edge of the first cover near the second cover. When the annular latch is engaged with the annular groove, the annular boss presses the edge of the filter sheet into the first part of the first cover within the cover cavity.

[0010] Furthermore, the sealing structure also includes a handle structure connected to the first cover and used to disconnect the first cover from the adapter ring.

[0011] Furthermore, there are multiple exhaust holes arranged in a circular array on the second cover, and there are also multiple channels arranged in a circular array on the first cover.

[0012] Furthermore, the sealing structure also includes a connecting strip, one end of which is connected to the first cover and the other end of which is connected to the second cover.

[0013] Furthermore, the filter sheet is made of activated carbon or bamboo charcoal.

[0014] Furthermore, both the first cover and the second cover are made of plastic or rubber.

[0015] When flushing the ostomy bag is required, the user can easily remove the multi-functional cap from the adapter ring with the flushing hole. In this state, the user can use the exposed flushing hole on the adapter ring to inject clean water into the bag cavity for a thorough cleaning. Once flushing is complete, or in routine use of the ostomy bag, the user can reinstall the multi-functional cap equipped with the filter onto the adapter ring. At this point, the gas inside the bag cavity will pass through the multi-functional cap and the filter in sequence, and finally be smoothly discharged from the pre-designed vent on the multi-functional cap. The filter plays a crucial role in this process, effectively filtering the gas to be discharged from the bag cavity to ensure its purity. The vent design allows accumulated gas inside the bag cavity to be released in a timely manner under appropriate environmental conditions, effectively preventing bag bloating and ensuring the patient's comfort.

[0016] The unique sealing structure introduced in this embodiment cleverly integrates both rinsing and venting functions by leveraging the flexible assembly and disassembly of the multi-functional cap and the adapter ring with a rinsing hole. This innovative design abandons the traditional approach of deploying separate venting and rinsing structures on the bag body, instead combining the venting and rinsing functions of the ostomy bag into a single opening, maximizing space utilization. This not only eliminates the need for complex designs regarding the location, size, and shape of two separate openings but also significantly simplifies the overall structure of the ostomy bag and reduces manufacturing complexity. Therefore, while ensuring a superior user experience for patients, this sealing structure also effectively reduces the production difficulty of the ostomy bag. Attached Figure Description

[0017] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1 This diagram shows a structural schematic of the sealing structure of an ostomy bag provided in an embodiment of the present invention;

[0019] Figure 2 A cross-sectional view of the sealing structure of an ostomy bag provided in an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram of the structure of the adapter ring provided in an embodiment of this utility model is shown;

[0021] Figure 4 A schematic diagram of the structure of the first cover provided in an embodiment of the present invention is shown;

[0022] Figure 5 A schematic diagram of the structure of the second cover provided in an embodiment of the present invention is shown.

[0023] In the picture:

[0024] 1. Adapter ring; 11. Flushing hole;

[0025] 2. Multifunctional cover; 21. Cover cavity; 22. First cover body; 221. Channel; 222. Annular latch; 23. Second cover body; 231. Vent hole; 232. Annular boss; 233. Annular groove;

[0026] 3. Filter sheet;

[0027] 4. Handle structure;

[0028] 5. Connecting strips. Detailed Implementation

[0029] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0030] An ostomy bag includes a bag body with a cavity for collecting excrement, a connecting component (an adhesive surface with an opening) on ​​the bag body for connecting the bag body to the patient's stoma, and a fixing component (such as a belt or adhesive) on the bag body for securing the bag to the patient's body. Because excrement contains gas, to prevent bag bloating after prolonged use, ostomy bags typically have a venting structure on the bag body that communicates with the bag cavity, allowing for air release when appropriate. Furthermore, existing ostomy bags usually also have a flushing structure on the bag body to ensure hygiene, as the bag body needs to be cleaned after a certain period of use.

[0031] Figure 1 This diagram illustrates the sealing structure of an ostomy bag provided in this embodiment. Figure 2 A cross-sectional view of the sealing structure of an ostomy bag provided in this embodiment is shown. Figure 3 A schematic diagram of the adapter ring 1 provided in this embodiment is shown. Figures 1-3 As shown, this embodiment provides a sealing structure for an ostomy bag, which includes an adapter ring 1, a multi-functional cap 2, and a filter sheet 3. The adapter ring 1 is fixedly mounted on the bag body and has a rinsing hole 11 communicating with the bag body. The multi-functional cap 2 is detachably mounted on the adapter ring 1 and includes a cap cavity 21 communicating with the bag body, and an exhaust hole 231 communicating with the cap cavity 21 for venting gas from the bag cavity. The filter sheet 3 is disposed in the cap cavity 21 and filters the gas in the bag cavity when it is vented through the exhaust hole 231.

[0032] When flushing the ostomy bag cavity is required, the user can easily remove the multi-functional cover 2 from the adapter ring 1 with the flushing hole 11. In this state, the user can inject clean water into the bag cavity through the exposed flushing hole 11 on the adapter ring 1 to complete a thorough cleaning of the bag. Once the flushing operation is complete, or in the daily use of the ostomy bag, the user can reinstall the multi-functional cover 2 equipped with the filter 3 onto the adapter ring 1. At this time, the gas inside the bag cavity will pass through the multi-functional cover 2 and the filter 3 in sequence, and finally be smoothly discharged from the pre-set vent hole 231 on the multi-functional cover 2. The filter 3 plays a crucial role in this process, effectively filtering the gas to be discharged from the bag cavity to ensure the purity of the gas. The design of the vent hole 231 allows the gas accumulated in the bag cavity to be released in a timely manner under appropriate environmental conditions, effectively avoiding the occurrence of bag bloating, thereby ensuring the patient's comfort.

[0033] The sealing structure introduced in this embodiment features a unique design. Leveraging the flexible assembly and disassembly of the multi-functional cap 2 and the adapter ring 1 with the flushing hole 11, it cleverly integrates flushing and venting functions into one. This innovative design abandons the traditional approach of deploying separate venting and flushing structures on the bag body, instead combining the venting and flushing functions of the ostomy bag into a single opening, maximizing space utilization. This not only eliminates the need for complex designs regarding the position, size, and shape of two separate openings but also significantly simplifies the overall structure of the ostomy bag and reduces manufacturing complexity. Therefore, while ensuring a superior user experience for patients, this sealing structure also effectively reduces the production difficulty of the ostomy bag.

[0034] In this embodiment, the multifunctional cover 2 includes a first cover body 22 detachably mounted on the adapter ring 1, and a second cover body 23 detachably mounted on the first cover body 22. A cover cavity 21 is formed between the first cover body 22 and the second cover body 23 and can communicate with the bag cavity through a channel 221 provided on the first cover body 22. An exhaust port 231 is provided on the second cover body 23. During use, the filtration effect of the filter element 3 will decline after a period of use. Therefore, the filter element 3 in the cover cavity 21 can be removed and replaced by removing the second cover body 23 mounted on the first cover body 22. Then, the second cover body 23 can be remounted on the first cover body 22, thus enabling the multifunctional cover 2 to perform effective filtration for a long time while simultaneously venting air. In other embodiments, the first cover body 22 and the second cover body 23 can also be an integral structure, with the filter element 3 either glued to or snapped into the cover cavity 21. The detachable split structure makes it easier for users to directly replace the filter 3 rather than the multi-functional cover 2, reducing unnecessary waste of resources compared to the integrated structure.

[0035] Specifically, the connection between the first cover 22 and the adapter ring 1 is either a snap-fit ​​or a threaded connection, and the connection between the second cover 23 and the first cover 22 is also either a snap-fit ​​or a threaded connection. The snap-fit ​​detachable connection allows for easy disassembly by the user, while the threaded connection ensures a tight connection between the first cover 22 and the adapter ring 1, or between the first cover 22 and the second cover 23. In actual manufacturing, a combination of a threaded connection between the second cover 23 and the first cover 22, and a snap-fit ​​connection between the first cover 22 and the adapter ring 1, can be chosen, balancing convenience and leak-proof performance.

[0036] Preferably, the volume of the cover cavity 21 is larger than the volume of the filter element 3. The cover cavity 21 includes a first portion formed within the first cover body 22 and connected to the channel 221, and a second portion formed within the second cover body 23 and connected to the vent hole 231. In this embodiment, the first portion is used to accommodate the filter element 3, while the second portion, which does not accommodate the filter element 3, can form a redundancy. The redundant second portion can cooperate with the second cover body 23 to store liquid excrement flowing into the second portion through the filter element 3, thereby reducing the possibility of liquid excrement in the bag cavity being discharged through the vent hole 231. In other embodiments, the second portion may be used to accommodate the filter element 3, and the first portion may form a redundancy. Alternatively, the first portion and the second portion may jointly accommodate the filter element 3.

[0037] Figure 4 This diagram shows the structure of the first cover 22 provided in this embodiment. Figure 5 A schematic diagram of the structure of the second cover 23 provided in this embodiment is shown. Figure 4 and Figure 5 and combined Figure 1 and Figure 2 As shown, an annular boss 232 with an annular groove 233 is provided on the edge of the second cover 23 near the first cover 22, and an annular latch 222 is provided on the edge of the first cover 22 near the second cover 23. When the annular latch 222 engages with the annular groove 233, the annular boss 232 presses the edge of the filter sheet 3 into the first part of the first cover 22 within the cover cavity 21. The engagement of the annular latch 222 with the annular boss 232 with the annular groove 233 not only enables the first cover 22 and the second cover 23 to engage, but also, compared to the annular boss 232 without the annular groove 233, allows the second cover 23 in this embodiment to provide a certain degree of sealing to the edge of the filter sheet 3, thereby reducing the possibility of liquid excrement in the bag cavity bypassing the filter sheet 3 and being discharged from the vent 231 when it flows through the cover cavity 21.

[0038] Furthermore, the sealing structure also includes a handle structure 4 connected to the first cover 22 and used to detach the first cover 22 from the adapter ring 1. The user can easily pull the first cover 22 using the handle structure 4, causing the first cover 22 and the second cover 23 to detach together from the adapter ring 1, so that the user can remove the multi-functional cover 2 from the adapter ring 1. For example, the handle structure 4 is a sheet-like structure connected to the first cover 22 to facilitate lifting by the user.

[0039] Preferably, there are multiple vent holes 231 arranged in a circular array on the second cover 23, and there are also multiple channels 221 arranged in a circular array on the first cover 22. The multiple channels 221 cooperate with the multiple vent holes 231 so that the multifunctional cover 2 can discharge more gas from the bag cavity in the same amount of time.

[0040] Preferably, the sealing structure further includes a connecting strip 5, one end of which is connected to the first cover 22 and the other end of which is connected to the second cover 23. The second cover 23 is connected to the first cover 22 by the connecting strip 5 to prevent the second cover 23 from being lost after being removed from the first cover 22 when the filter 3 is replaced.

[0041] Preferably, the filter element 3 is made of activated carbon or bamboo charcoal. Utilizing the strong adsorption capacity of activated carbon or bamboo charcoal, it adsorbs various odorous substances in the gas inside the bag cavity, thereby purifying the gas.

[0042] Preferably, both the first cover 22 and the second cover 23 are made of plastic or rubber, so as to utilize the deformable properties of plastic and rubber, so that the first cover 22 and the second cover 23 can deform and thus achieve snap-fit.

[0043] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Based on the above description of this application, those skilled in the art will also understand that the terms used, such as "upper" and "inner," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings of this application. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as a limitation on the present invention.

[0045] Furthermore, the terms "first" or "second," etc., used in this application to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0046] While various embodiments of the present invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A closure structure for an ostomy bag, the ostomy bag comprising a bag body having a bag cavity, characterised in that, The sealing structure includes: An adapter ring is fixedly mounted on the bag body and has a rinsing hole communicating with the bag body; A multi-functional cap, which is detachably mounted on the adapter ring, includes a cap cavity communicating with the bag body, and an exhaust port communicating with the cap cavity for discharging gas from the bag cavity; A filter element is disposed within the cover cavity and is capable of filtering the gas in the bag cavity when the gas is exhausted through the vent hole. The multifunctional cover includes a first cover body detachably mounted on the adapter ring and a second cover body detachably mounted on the first cover body. The cover cavity is formed between the first cover body and the second cover body and can communicate with the bag cavity through a channel provided on the first cover body. The exhaust hole is provided on the second cover body. The connection between the first cover body and the adapter ring is a snap-fit ​​or threaded connection, and the connection between the second cover body and the first cover body is a snap-fit ​​or threaded connection. The volume of the cover cavity is larger than the volume of the filter sheet. The cover cavity includes a first portion formed in the first cover body and connected to the channel, and a second portion formed in the second cover body and connected to the exhaust hole, wherein the first portion and / or the second portion is used to accommodate the filter sheet.

2. The closure structure of claim 1, wherein An annular protrusion with an annular groove is provided on the edge of the second cover near the first cover, and an annular latch is provided on the edge of the first cover near the second cover. When the annular latch is engaged with the annular groove, the annular protrusion presses the edge of the filter sheet into the first part of the first cover within the cover cavity.

3. The sealing structure according to claim 1, characterized in that, The sealing structure also includes a handle structure connected to the first cover and used to disconnect the first cover from the adapter ring.

4. The sealing structure according to claim 1, characterized in that, The number of exhaust holes is multiple and arranged in a circular array on the second cover. The number of channels is also multiple and arranged in a circular array on the first cover.

5. The sealing structure according to claim 1, characterized in that, The sealing structure also includes a connecting strip, one end of which is connected to the first cover and the other end of which is connected to the second cover.

6. The sealing structure according to claim 1, characterized in that, The filter sheet is made of activated carbon or bamboo charcoal.

7. The sealing structure according to claim 1, characterized in that, Both the first cover and the second cover are made of plastic or rubber.