Ostomy bag with hydrophobic and exhaust functions

Abstract

The utility model provides an ostomy bag with dewatering and exhausting functions. The ostomy bag comprises a bag body and a filtering assembly. The bag body is provided with an opening for stoma excrement to flow in and an exhaust port for exhausting gas in the bag body; the filtering assembly is arranged on the inner side face of the bag body and used for filtering gas output by the exhaust port; the filtering assembly at least comprises a waterproof breathable layer and a hydrophobic structure layer, the waterproof breathable layer covers an outlet of the exhaust port, and the hydrophobic structure layer is arranged on the outer surface of the waterproof breathable layer in an attached mode and used for conducting further hydrophobic treatment on gas entering the waterproof breathable layer; therefore, gas entering the waterproof breathable layer can be effectively separated from water vapor, moisture in the gas is blocked, it is ensured that gas only containing excrement smell can enter the waterproof breathable layer smoothly, deodorization treatment is carried out, and the situation that the water vapor is accumulated on the waterproof breathable layer in a concentrated mode, and consequently the exhaust efficiency is reduced is greatly avoided; therefore, the dewatering function of the whole filtering structure is achieved, and the effects of exhausting, dewatering and the like are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an ostomy bag with hydrophobic and venting functions. Background Technology

[0002] Ostomy bags are typically used as temporary containers for storing human excrement such as urine and feces. They mainly consist of a base and a bag body, with the bag body holding the excrement flowing from the stoma. Because the excrement contains gas, vents are usually provided on the bag body to prevent it from bulging after prolonged use. However, direct gas discharge produces an unpleasant odor, which can affect the user's normal social interactions.

[0003] Currently, filters are typically installed at the exhaust vent to facilitate ventilation and deodorization. However, to prevent water vapor from affecting the filter's effectiveness during exhaust, waterproof and breathable materials are usually used. But relying solely on waterproof materials is insufficient to effectively block water vapor, significantly impacting subsequent deodorization and exhaust performance, and even affecting the lifespan of the entire filter assembly. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide an ostomy bag with hydrophobic and venting functions to solve the above problems.

[0005] The present invention adopts the following solution:

[0006] This application provides an ostomy bag with hydrophobic and venting functions, including a bag body and a filter assembly; the bag body has an opening for the inflow of ostomy excrement and an vent for the expulsion of gas from the bag body; the filter assembly is disposed on the inner side of the bag body for filtering the gas output from the vent; the filter assembly includes at least a waterproof and breathable layer and a hydrophobic structural layer, the waterproof and breathable layer covering the outlet of the vent, and the hydrophobic structural layer being attached to the outer surface of the waterproof and breathable layer for further hydrophobic treatment of the gas entering the waterproof and breathable layer.

[0007] As a further improvement, the hydrophobic structural layer is configured as a hydrophobic material, or a hydrophobic coating, or a PE semi-permeable membrane, which can prevent water vapor from accumulating on the waterproof and breathable layer.

[0008] As a further improvement, the filter assembly also includes an activated carbon layer; the activated carbon layer is correspondingly attached to one side of the waterproof and breathable layer near the exhaust port, and the hydrophobic structural layer is correspondingly attached to the opposite side of the waterproof and breathable layer.

[0009] As a further improvement, the activated carbon layer has adhesive on the side that adheres to the inner side of the bag body, or adhesive on the outer periphery of the exhaust port.

[0010] As a further improvement, the waterproof and breathable layer is configured as a waterproof and breathable fabric to allow exhaust gas to be released to the activated carbon layer.

[0011] As a further improvement, the waterproof and breathable layer covers the activated carbon layer, and the area of ​​the waterproof and breathable layer is not less than the area of ​​the activated carbon layer.

[0012] As a further improvement, the hydrophobic structural layer covers the waterproof and breathable layer, and the area of ​​the hydrophobic structural layer is not less than the area of ​​the waterproof and breathable layer; wherein, the thickness of the hydrophobic structural layer, the waterproof and breathable layer, and the activated carbon layer gradually increases in multiples.

[0013] As a further improvement, the overall shape of the filter assembly is configured as a crescent shape.

[0014] As a further improvement, the opening is located on the side of the bag facing the user, and the vent is located on the side of the bag away from the user, with the opening being larger than the vent.

[0015] As a further improvement, the lower end of the bag is provided with a drain outlet and a disassembly assembly for opening and closing the outlet; the exhaust port is correspondingly opened on the upper end of the bag to keep away from the excrement accumulated in the bag.

[0016] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0017] The ostomy bag with hydrophobic and venting functions of this application, with a waterproof and breathable layer covering the vent outlet, can effectively prevent water vapor from entering the filtration system. Water vapor usually reduces the adsorption capacity of the filter material and may even damage the filter structure. The waterproof and breathable layer can effectively isolate water vapor within a certain range, ensuring that the filter component maintains its deodorizing effect for a long time. In particular, a hydrophobic structural layer is added on the outer surface of the waterproof and breathable layer for targeted hydrophobic treatment. It can effectively separate the gas entering the waterproof and breathable layer from the water vapor, blocking the moisture in the gas and ensuring that only the gas containing the odor of excrement can enter smoothly and undergo deodorization treatment. This greatly avoids the accumulation of water vapor in the waterproof and breathable layer, which would reduce the venting efficiency. Thus, it plays a hydrophobic role in the entire filtration structure and greatly improves the venting and hydrophobic effects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the ostomy bag with hydrophobic and venting functions according to an embodiment of the present invention;

[0019] Figure 2 This is a perspective view of the ostomy bag with hydrophobic and venting functions according to an embodiment of the present invention from another perspective;

[0020] Figure 3 This is a schematic diagram of the structure of the filter assembly of the ostomy bag with hydrophobic and venting functions according to an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the filter assembly of the ostomy bag with hydrophobic and venting functions according to an embodiment of the present invention.

[0022] icon:

[0023] 1-Bag body; 11-Opening; 12-Exhaust port; 13-Drainage port; 2-Filter assembly; 21-Waterproof and breathable layer; 22-Hydrophobic structural layer; 23-Activated carbon layer; 3-Disassembly assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model 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 utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. Example

[0025] Combination Figures 1 to 4 This embodiment provides an ostomy bag with hydrophobic and venting functions, including a bag body 1 and a filter assembly 2. The bag body 1 has an opening 11 for the inflow of ostomy excrement and an vent 12 for the expulsion of gas from the bag body 1. The filter assembly 2 is disposed on the inner side of the bag body 1 and is used to filter the gas output from the vent 12. The filter assembly 2 includes at least a waterproof and breathable layer 21 and a hydrophobic structural layer 22. The waterproof and breathable layer 21 covers the outlet of the vent 12, and the hydrophobic structural layer 22 is attached to the outer surface of the waterproof and breathable layer to further hydrophobically treat the gas entering the waterproof and breathable layer 21.

[0026] In the existing technology, the air vent of the ostomy bag is equipped with a filter component 2, which uses activated carbon to achieve deodorization and waterproof and breathable fabric to achieve a certain waterproof effect. However, after frequent use, moisture can easily accumulate on the waterproof and breathable fabric, greatly reducing its breathability. This not only affects the exhaust function but also makes it easy for moisture to leak out and condense on the outside of the bag body 1, thus affecting the user's normal use. In this embodiment, the ostomy bag with hydrophobic and venting functions covers the outlet of the vent 12 with a waterproof and breathable layer 21, which can effectively prevent water vapor from entering the filtration system. Water vapor usually reduces the adsorption capacity of the filter material and may even damage the filter structure. The waterproof and breathable layer 21 can effectively isolate water vapor within a certain range, ensuring that the filter component 2 maintains its deodorizing effect for a long time. In particular, a hydrophobic structure layer 22 is added on the outer surface of the waterproof and breathable layer 21 for targeted hydrophobic treatment. It can effectively separate the gas entering the waterproof and breathable layer 21 from the water vapor, blocking the moisture in the gas and ensuring that only the gas containing the odor of excrement can enter smoothly and undergo deodorization treatment. This greatly avoids the accumulation of water vapor in the waterproof and breathable layer 21, which would reduce the venting efficiency. Thus, it plays a hydrophobic role in the entire filtration structure and greatly improves the venting and hydrophobic effects.

[0027] In this embodiment, the hydrophobic structural layer 22 is configured as a hydrophobic material, a hydrophobic coating, or a PE semi-permeable membrane, which can prevent water vapor from accumulating on the waterproof and breathable layer 21. The water vapor includes at least large water molecules and small water vapor molecules. Whether it is a hydrophobic material, a coating, or a PE semi-permeable membrane, it can prevent small water droplets (large molecules) from entering the filter assembly 2, thus achieving a preliminary waterproofing purpose.

[0028] Furthermore, the hydrophobic structure layer 22 can effectively prevent the accumulation of water vapor (small molecules). Water vapor usually accumulates at the exhaust port 12, especially in humid environments, which can easily lead to a decline in the performance of the filter component 2. The hydrophobic structure can remove water vapor before it enters the waterproof and breathable layer 21, avoiding the impact of water vapor on the filter material and ensuring smooth gas discharge.

[0029] Obviously, the hydrophobic structural layer 22 serves to isolate water vapor on the one hand, and allows odorous gases to freely enter the waterproof and breathable layer 21 on the other. Preferably, the hydrophobic material can be, but is not limited to, fluorinated waterproof fabrics or other synthetic polymer melts with excellent hydrophobic and breathable properties, such as polytetrafluoroethylene, polypropylene, polycarbonate, polyamide, polyacrylonitrile, polyester, fluorine-free acrylic acid, etc.

[0030] like Figure 3 and Figure 4In this embodiment, the filter assembly 2 further includes an activated carbon layer 23. The activated carbon layer 23 is correspondingly attached to one side of the waterproof and breathable layer 21 near the exhaust port 12, and the hydrophobic structural layer 22 is correspondingly attached to the opposite side of the waterproof and breathable layer 21. It should be noted that activated carbon has a very high surface area and adsorption capacity, effectively adsorbing harmful substances and odor molecules in the gas. When the gas from the exhaust port 12 passes through the activated carbon layer 23, the odor components are adsorbed by the activated carbon, thereby significantly reducing or eliminating odors and improving user comfort, especially during prolonged wear.

[0031] In particular, by rationally arranging the activated carbon layer 23, the hydrophobic structural layer 22, and the waterproof and breathable layer 21 in sequence, the gas undergoes a series of filtration steps as it passes through the exhaust port 12. First, the hydrophobic structural layer 22 isolates water vapor entering the waterproof and breathable layer 21, thereby keeping the filter assembly 2 dry and efficient. Next, the gas passes through the waterproof and breathable layer 21, further preventing moisture accumulation. Finally, the activated carbon layer 23 adsorbs odor molecules in the gas before releasing clean gas. Through this layered filtration structure, it is ensured that the gas can be discharged quickly while effectively removing odors.

[0032] It is understood that the activated carbon layer 23 has adhesive on the inner side of the bag body 1 or on the outer periphery of the exhaust port 12. By providing adhesive on the inner side of the activated carbon layer 23 or on the outer periphery of the exhaust port 12, the structural stability and sealing of the filter assembly 2 can be effectively enhanced, ensuring that the activated carbon layer 23 always performs at its best throughout the entire use process.

[0033] Notably, the waterproof and breathable layer 21 is configured as a waterproof and breathable fabric to allow exhaust gas to be released to the activated carbon layer 23. This waterproof and breathable fabric is typically composed of a polymer waterproof and breathable material (such as a PTFE membrane) and a cloth composite, providing waterproof, moisture-permeable, breathable, and insulating properties.

[0034] Preferably, the waterproof and breathable layer 21 covers the activated carbon layer 23, and the area of ​​the waterproof and breathable layer 21 is not less than the area of ​​the activated carbon layer 23. Further, the hydrophobic structural layer 22 covers the waterproof and breathable layer 21, and the area of ​​the hydrophobic structural layer 22 is not less than the area of ​​the waterproof and breathable layer 21. Thus, by covering the activated carbon layer 23 with the waterproof and breathable layer 21, ensuring its area is not less than that of the activated carbon layer 23, and then covering the waterproof and breathable layer 21 with the hydrophobic structural layer 22, ensuring its area is not less than that of the waterproof and breathable layer 21, the progressively increasing number of structural layers effectively improves the performance of the filter assembly 2. Through the multi-layered waterproof, breathable, and hydrophobic structure, it can be ensured that the gas passing through the filter assembly 2 is not interfered with by moisture, while the deodorizing effect of the activated carbon layer 23 is maximized.

[0035] The thicknesses of the hydrophobic structural layer 22, the waterproof and breathable layer 21, and the activated carbon layer 23 increase progressively in multiples. Specifically, the thickness of the waterproof and breathable layer 21 is twice the thickness of the hydrophobic structural layer 22, and the thickness of the activated carbon layer 23 is three times the thickness of the hydrophobic structural layer 22. Therefore, by progressively increasing the thicknesses of the hydrophobic structural layer 22, the waterproof and breathable layer 21, and the activated carbon layer 23, the functions of each layer can be fully utilized, improving the deodorization effect, moisture isolation capacity, and gas emission efficiency of the filter assembly 2. Furthermore, the progressively thicker layers not only enhance the overall structural stability and durability but also effectively extend the service life of the filter assembly 2, ensuring its long-term high-efficiency function.

[0036] Preferably, the filter assembly 2 is configured in a crescent shape. On one hand, the crescent-shaped filter assembly 2 better fits the internal structure of the ostomy bag, especially at the connection between the exhaust port 12 and the bag body 1. The crescent shape avoids the "dead corners" of traditional square or circular designs, ensuring smooth gas flow and reducing airflow problems caused by unsuitable shapes. On the other hand, the crescent shape guides gas along a predetermined path, thus avoiding disordered gas flow during the filtration process. Through this specific shape design, water vapor undergoes a more efficient filtration process upon entering the filter layer, particularly optimizing the contact area of ​​the filter layer and the direction of gas flow.

[0037] In this embodiment, the opening 11 is located on the side of the bag 1 facing the user, and the vent 12 is located on the side of the bag 1 away from the user, with the opening 11 being larger than the vent 12. Therefore, placing the vent 12 on the side away from the user effectively avoids direct contact between the vent 12 and the skin, and facilitates gas discharge. Furthermore, the fact that the opening 11 is on the user's side and larger than the vent 12 helps excrement flow more smoothly into the bag 1, and the larger opening 11 makes it easier for excrement to enter the bag 1. The smaller vent 12 allows for better control of the gas discharge rate, helping the filter assembly 2 to better remove odors from the discharged gas, ensuring that the filtered gas does not have a strong odor.

[0038] like Figure 1 As shown, in this embodiment, the lower end of the bag 1 is provided with a drain outlet 13 and a disassembly assembly 3 for opening and closing the drain outlet 13. The exhaust port 12 is correspondingly opened on the upper end of the bag 1 to keep away from the excrement accumulated inside the bag 1.

[0039] A drain outlet 13 and an opening / closing mechanism are provided at the lower end of the bag body 1, allowing excrement to be discharged smoothly and facilitating regular cleaning and replacement. By disassembling and assembling component 3, users can easily close or open the drain outlet 13 to control the discharge process. Especially when it is necessary to replace the excrement bag, the drain outlet 13 at the lower end ensures that excrement will not leak accidentally, which is convenient and hygienic.

[0040] By placing the exhaust port 12 on the upper side of the bag body 1, it can effectively prevent excrement from accumulating at the bottom of the bag body 1 and mixing with the gas, which helps to keep the exhaust port 12 clean, ensures that the gas is discharged more smoothly and is not affected by excrement, prevents the exhaust port 12 from being blocked by excrement, ensures that the gas can be discharged smoothly through the filter component 2, and enhances the deodorization effect.

[0041] It should be noted that the disassembly component 3 can be a fastener such as Velcro or a connecting buckle used for sealing and opening.

[0042] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. An ostomy bag having a hydrophobic and gas venting function; characterized in that, The application relates to a bag body provided with an opening for allowing stomal excrement to flow in and an exhaust port for exhausting gas in the bag body; a filter assembly arranged on the inner side of the bag body and used for filtering the gas output by the exhaust port; wherein the filter assembly comprises at least a waterproof and breathable layer and a hydrophobic structure layer, the waterproof and breathable layer covers the outlet of the exhaust port, and the hydrophobic structure layer is arranged on the outer surface of the waterproof and breathable layer and used for further hydrophobic treatment of the gas entering the waterproof and breathable layer. The hydrophobic structure layer is configured as a hydrophobic material or a hydrophobic coating or a PE semi-permeable membrane, which can prevent water vapor from being concentrated and accumulated on the waterproof and breathable layer. The filter assembly further comprises an activated carbon layer; the activated carbon layer is correspondingly arranged on one side of the waterproof and breathable layer close to the exhaust port, and the hydrophobic structure layer is correspondingly arranged on the other side of the waterproof and breathable layer. The activated carbon layer is provided with adhesive on one side of the inner side of the bag body or is provided with adhesive on the outer periphery of the exhaust port.

2. The pouch according to claim 1, wherein the pouch has a hydrophobic and gas-venting function. The waterproof and breathable layer is configured as a waterproof and breathable fabric to allow the exhaust gas to be output to the activated carbon layer.

3. The pouch according to claim 1, wherein The waterproof and breathable layer covers the activated carbon layer, and the area of the waterproof and breathable layer is not less than that of the activated carbon layer.

4. The pouch according to claim 3, wherein The hydrophobic structure layer covers the waterproof and breathable layer, and the area of the hydrophobic structure layer is not less than that of the waterproof and breathable layer; wherein the thickness of the hydrophobic structure layer, the waterproof and breathable layer and the activated carbon layer gradually increases in multiples.

5. The pouch according to claim 3, wherein The overall shape of the filter assembly is configured as a crescent shape.

6. The pouch according to claim 3, wherein The opening is correspondingly arranged on the side of the bag body facing the user, the exhaust port is correspondingly arranged on the side of the bag body away from the user, and the opening is larger than the exhaust port.

7. The pouch according to claim 6, wherein the pouch is provided with a hydrophobic and air-venting function. The lower end side of the bag body is provided with a sewage discharge port and a disassembly assembly used for opening and closing the outlet; the exhaust port is correspondingly arranged on the upper end side of the bag body to be away from the excrement accumulated in the bag body.

8. The pouch according to claim 1, wherein ​ 9. The pouch according to claim 1, wherein ​ 10. The pouch according to claim 1, wherein ​

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