Ostomy pouch with filter protection panel
The ostomy pouch with a protective panel and intermittent tuck seals addresses filter clogging by creating drainage channels, reducing pouch ballooning and maintaining functionality.
Patent Information
- Application Number
- JP2026510836
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-24
- Filing Date
- 2024-08-13
- Publication Date
- 2026-08-26
AI Technical Summary
Ostomy pouches often experience ballooning due to filter clogging from liquid, semi-solid, or solid excrement, leading to anxiety, restricted movement, and inconvenience.
An ostomy pouch with a protective panel between the body side wall and distal wall, featuring intermittent tuck seals and perforated film with ridges, allowing gas passage while preventing waste from entering the filter assembly, and creating drainage channels to minimize pouch expansion.
The solution effectively reduces pouch ballooning by allowing trapped waste to flow back into the collection cavity, minimizing expansion and maintaining pouch functionality.
Smart Images

Figure 2026529000000001_ABST
Abstract
Description
Technical Field
[0001] The following description relates to ostomy appliances, and more particularly to an ostomy pouch including a deodorizing filter and a filter protection part.
Background Art
[0002] An ostomy pouch is used by patients who have undergone surgery such as colostomy (colonic stoma), ileostomy (ileal stoma), or urostomy (urinary stoma) to collect excrement. The ostomy pouch includes an inlet opening for collecting excrement discharged from the stoma (fistula) into the pouch. Usually, the ostomy pouch also includes a gas outlet covered with a filter assembly for filtering odor and discharging the gas collected in the pouch. However, in some cases, liquid, semi-solid or solid excrement collected in the pouch may flow into the filter assembly and block it, thereby restricting the passage of gas through the filter assembly. This may lead to ballooning (swelling) of the pouch or undesirable inflation.
[0003] Pouch ballooning can cause anxiety and confusion in the user's quality of life, such as restricted movement, risk of leakage, and inconvenient user intervention to release gas pressure. Common methods for releasing accumulated gas include opening the pouch coupling system, often called "burping", draining the pouch, and peeling the skin barrier. Many ostomates report spending time dealing with the pouch ballooning problem and feeling frustrated with current ostomy pouch systems.
[0004] To reduce filter clogging that can cause pouch ballooning problems, protective features for ostomy filters have been developed. For example, U.S. Patent Application Publication 2023 / 0099447, assigned to the same applicant and incorporated herein by reference in its entirety, discloses an ostomy pouch including a filter assembly and a multi-stage filter protection section, the multi-stage filter protection section including a pre-filter formed from foam and a micro-perforated protective panel covering the pre-filter. [Overview of the project] [Problems that the invention aims to solve]
[0005] This disclosure provides improvements to filter protection.
[0006] Ostomy filter protection systems according to various embodiments are provided. [Means for solving the problem]
[0007] In one embodiment, the ostomy pouch device may include a body side wall and a distal wall joined along a periphery seal, defining a collection cavity for collecting waste; an inlet opening defined in the body side wall for receiving waste from the stoma; and a gas outlet formed at the top of the distal wall for gas collected in the collection cavity to exit. The ostomy pouch device may also include a filter assembly attached to the distal wall and covering the gas outlet; and a protective panel positioned between the body side wall and the distal wall to protect the filter assembly. The protective panel may be joined to the body side wall and the distal wall along a periphery seal and intermittently attached to the body side wall by at least one body side tuck seal and intermittently attached to the distal wall by at least one distal tuck seal.
[0008] When the ostomy pouch device expands due to gas collected in the collection cavity, the protective panel is pulled by both pouch walls, creating multiple drainage channels between the protective panel and the body side wall, and between the protective panel and the distal wall, allowing the trapped waste to flow into the collection cavity. At least one body-side tuck seal and at least one distal tuck seal can be configured and positioned to achieve this. The at least one body-side tuck seal and at least one distal tuck seal can also limit the separation between the body side wall and the distal wall, thereby minimizing the expansion of the ostomy pouch device.
[0009] In one embodiment, at least one body-side tuck seal may include at least two body-side tuck seals, and at least one distal tuck seal may include at least two distal tuck seals. The at least two body-side tuck seals and the at least two distal tuck seals can be arranged such that the protective panel is alternately attached to the body-side wall and the distal wall.
[0010] In one embodiment, at least one distal tuck seal may include four distal tuck seals, and at least one body-side seal may include two body-side seals. In one embodiment, at least one distal tuck seal may include two high distal tuck seals and one low distal tuck seal, and at least one body-side tuck seal may include four low body-side tuck seals, with the high distal tuck seals located closer to the filter assembly than the low distal tuck seals and low body-side tuck seals. The two high distal tuck seals, the low distal tuck seals, and the four low body-side tuck seals can be arranged so that the protective panels are alternately mounted on the distal wall and the body-side wall.
[0011] A body-side tuck seal can be formed by attaching a protective panel to the body side wall in a predetermined area, and a distal tuck seal can be formed by attaching a protective panel to the distal wall in a predetermined area. In one embodiment, a body-side tuck seal can be formed by heat-sealing the protective panel and the body side wall in a predetermined area, and a distal tuck seal can be formed by heat-sealing the protective panel and the body side wall in a predetermined area. In some embodiments, each of the body-side tuck seal and the distal tuck seal can be configured to have a substantially circular shape with a diameter of about 0.2 inches (about 5.08 mm) to about 0.4 inches (about 10.16 mm).
[0012] In one embodiment, the protective panel can be formed from a perforated film containing a plurality of openings. Each opening may be provided with a ridge around it, which can be formed as a raised edge projecting away from the surface of the protective panel. The ridge can be configured to increase the thickness and volume around each opening, increasing the surface energy around each opening, thereby allowing gas to pass through the opening while preventing waste from passing through.
[0013] In one embodiment, a ridge can be formed on the first surface of the protective panel, and the protective panel can be positioned such that the first surface faces the distal wall and the ridge protrudes toward the distal wall. The ridge can function as a spacer between the protective panel and the distal wall, and can be configured to prevent them from sticking together and obstructing the gas flow path.
[0014] In another embodiment, the ostomy pouch device may include a body side wall and a distal wall joined along a peripheral seal, defining a collection cavity for collecting waste, an inlet opening defined in the body side wall for receiving waste from the stoma, and a gas outlet formed at the top of the distal wall for gas to exit the collection cavity. The ostomy pouch device may also include a filter assembly attached to the distal wall and covering the gas outlet, and a protective panel positioned between the body side wall and the distal wall to protect the filter assembly, the protective panel may be formed from a perforated film having multiple openings, including ridges formed around each opening. The ridges may be formed as raised edges projecting away from the surface of the protective panel, increasing the thickness and volume around each opening and increasing the surface energy around each opening, thereby allowing gas to pass while preventing waste from passing through the opening.
[0015] The protective panel, formed from a perforated film, can be bonded to the lateral and distal walls of the body along a peripheral seal, intermittently attached to the lateral wall by at least one lateral tuck seal, and intermittently attached to the distal wall by at least one distal tuck seal. The lateral and distal tuck seals can be configured such that when the ostomy pouch device expands due to gas collected in the collection cavity, the protective panel is pulled from both sides, creating multiple drainage channels between the protective panel and the lateral wall, and between the protective panel and the distal wall, allowing the trapped waste to flow into the collection cavity.
[0016] In any of the embodiments described above, the protective panel can be formed from a polymer film perforated by a thermal perforation process. In such embodiments, ridges can be formed by melting a portion of the polymer film when the high-temperature needle used in the thermal perforation process perforates the polymer film to form multiple openings. The molten portion of the polymer film can accumulate around each opening and solidify to form a ridge around each of the multiple openings.
[0017] The general descriptions above and the detailed descriptions below are examples only and do not limit this disclosure.
[0018] The advantages and merits of this embodiment will become more readily apparent to those skilled in the art by examining the following detailed description and accompanying drawings. [Brief explanation of the drawing]
[0019] [Figure 1] This is a distal perspective view of an ostomy pouch device according to one embodiment, which includes a filter assembly and a multi-stage filter protection section including a pre-filter and a protective panel. [Figure 2] Figure 1 is a cross-sectional view of the ostomy pouch device along AA. [Figure 3] This is a perspective view of an ostomy pouch device according to another embodiment, which includes a filter assembly and a multi-stage filter protection section including a pre-filter and a protective panel. [Figure 4] This is a magnified image of one of the openings having a ridge formed in a protective panel made of a heat-perforated film, according to one embodiment. [Modes for carrying out the invention]
[0020] While this disclosure can be materialized in various forms, it should be considered illustrative and not intended to limit itself to the specific embodiments shown in the drawings. Preferred embodiments are shown in the drawings and described below. The words “a or an” should be interpreted as including both singular and plural forms. Conversely, any reference to multiple items should include the singular form where appropriate. Words such as “first,” “second,” and “third” may be used in this disclosure to describe various types of information, and such information should not be limited to these words. These words are used only to distinguish one category of information from another. Directional words such as “top,” “bottom,” “up,” “down,” “front,” and “back” are used for illustrative purposes and are not limiting. Depending on the context, the word "if" as used herein may be interpreted as "when," "upon," or "in response to determining."
[0021] Figures 1 and 2 show an ostomy pouch device 10 according to one embodiment. The ostomy pouch device 10 can be formed by a distal wall 12 and a body side wall 14 joined along an outer peripheral seal 15 to define a collection cavity 16 and an outlet 18 for collecting waste. The ostomy pouch device 10 may include a filter assembly 22 and a multi-stage filter protection section including a protective panel 20 and a pre-filter 24. The outlet 18 can be terminated at an outlet opening or outlet 19 for discharging waste collected in the cavity 16 after the period of use.
[0022] The multi-stage filter protection part can include a pre-filter 24 configured to protect the filter assembly 22 and a protection panel 20 disposed between the pouch walls 12, 14 to cover the pre-filter 24. In such an embodiment, to provide multiple protection parts for the filter assembly 122 from ostomy effluents (also referred to herein as excreta, liquid excreta, semi-solid excreta, and solid excreta) collected in the pouch, the protection panel 120 can function as a coarse pre-filter and a first protection line, and the pre-filter 124 can function as a fine pre-filter and a second protection line. In one embodiment, the filter assembly 22 can be attached to the outer surface of the distal pouch wall 12 to cover a gas outlet opening defined in the pouch wall 12, and the pre-filter 24 can be attached to the inner surface of the distal pouch wall 12 to cover the gas outlet opening. In another embodiment, the filter assembly 22 can be attached to the inner surface of the pouch wall to cover the gas outlet opening, and the pre-filter 24 can be attached to the inner surface of the pouch wall to cover the filter assembly 22. The protection panel 20 can be configured and sized to be larger than the pre-filter 24 to cover the pre-filter 24.
[0023] The protective panel 20 can be positioned between the distal wall 12 and the body-side pouch wall 14 and joined to the pouch walls 12 and 14 along the peripheral seal 15. Alternatively, as shown in Figure 2, the protective panel 20 can be intermittently attached to the distal wall 12 by at least one tack seal 32, 34, 46, and intermittently attached to the body-side wall 14 by at least one tack seal 42, 44, 48, 50. The tack seals 32, 34, 42, 44, 46, 48, 50 can be formed by attaching the protective panel 20 to the distal wall 12 at predetermined spots / areas, or to the body-side wall 14 at predetermined spots / areas. For example, the tack seals 32, 34, 42, 44, 46, 48, 50 can be formed by heat-sealing the protective panel 20 to the distal wall 12 at predetermined spots, or by heat-sealing the protective panel 20 to the body-side wall 14 at predetermined spots. The tack seals can also be formed by other known sealing methods. Alternatively, the tack seals 32, 34, 42, 44, 46, 48, and 50 can be formed by attaching the distal wall 12 and the protective panel 20, or the body side wall 14 and the protective panel 20, using adhesive at predetermined spots or areas.
[0024] In one embodiment, the protective panel 20 can be intermittently attached to the distal wall 12 by two high-tack seals 32, 34 and one low-tack seal 46, while the protective panel 20 can also be intermittently attached to the body side wall 14 by four low-tack seals 42, 44, 48, 50, with the high-tack seals 32, 34 located closer to the filter assembly 22 than the low-tack seals 42, 44, 46, 48, 50. In this embodiment, as shown in Figure 2, the tack seals 42, 32, 44, 46, 48, 34, 50 can be arranged so that the protective panel 20 is alternately tacked to the distal wall 12 and the body side wall.
[0025] The tack seals 32, 34, 42, 44, 46, 48, 50 can be configured such that when the ostomy pouch appliance 10 is inflated by gas collected in the collection cavity 16, the protective panel 20 is pulled by both sides of the pouch walls 12, 14. When the increase in gas pressure within the collection cavity 16 causes the protective panel 20 to be pulled by the distal wall 12 and the body side wall 14, a plurality of drainage channels 52 are formed between the protective panel 20 and the distal wall 12 and between the protective panel 20 and the body side wall 14, and the ostomy pouch appliance 10 can be configured such that ostomy effluent captured between the distal wall 12 and the protective panel 20 and between the body side wall 14 and the protective panel 20 can flow into the collection cavity 16. The tack seals 32, 34, 42, 44, 46, 48, 50 can be configured to limit the maximum separation between the distal wall 12 and the body side wall 14 in order to minimize pouch ballooning.
[0026] In one embodiment, the protective panel 20 can be intermittently attached to the distal wall 12 by two high-tack seals 32, 34, while the protective panel 20 can be intermittently attached to the body side wall 14 by five low-tack seals 42, 44, 46, 48, 50. In such an embodiment, the tack seals 42, 32, 44 and 48, 34, 50 can be arranged so that the protective panel 20 is alternately tacked to the distal wall 12 and the body side wall 14 by these tack seals. In another embodiment, the protective panel 20 can be intermittently attached to the distal wall 12 by five tack seals 42, 44, 46, 48, 50, while the protective panel 20 can be intermittently attached to the body side wall 14 by two tack seals 32, 34. In yet another embodiment, the protective panel 20 can be intermittently attached to the distal wall 12 by four tuck seals 42, 44, 48, and 50, while the protective panel 20 can be intermittently attached to the body side wall 14 by three tuck seals 32, 34, and 46. In some embodiments, the protective panel 20 can be intermittently attached to the distal wall 12 by three or more tuck seals, and intermittently attached to the body side wall 14 by three or more tuck seals. Here, the protective panel 20 is alternately attached to the distal wall 12 and the body side wall 14, providing a drainage channel 52 between them as the ostomy pouch device 10 expands due to the gas collected in the collection cavity 16.
[0027] In one embodiment, each of the tack seals 32, 34, 42, 44, 46, 48, and 50 can be configured to have a substantially circular shape with a diameter of approximately 0.15 inches (approximately 3.81 mm) to approximately 0.5 inches (approximately 12.7 mm), preferably approximately 0.20 inches (approximately 5.08 mm) to approximately 0.40 inches (approximately 10.16 mm), and more preferably approximately 0.25 inches (approximately 6.35 mm) to approximately 0.30 inches (approximately 8.89 mm). For example, each of the tack seals 32, 34, 42, 44, 46, 48, and 50 can be configured to have a substantially circular shape with a diameter of approximately 0.25 inches (approximately 6.35 mm). In other embodiments, the tack seal can be configured in various shapes having an area of approximately 0.003 square inches (approximately 1.93 square millimeters) to approximately 0.031 square inches (approximately 19.99 square millimeters), preferably approximately 0.005 square inches (approximately 3.23 square millimeters) to approximately 0.020 square inches (approximately 12.90 square millimeters), and more preferably approximately 0.008 square inches (approximately 5.16 square millimeters) to approximately 0.011 square inches (approximately 7.10 square millimeters).
[0028] Figure 3 shows an ostomy pouch device 100 according to one embodiment. The ostomy pouch device 100 is configured similarly to the ostomy pouch device 10 and may include a filter assembly 122, a pre-filter 124, and a protective panel 120. In this embodiment, the protective panel 120 is alternately attached to the distal pouch wall and the body side wall by a plurality of high-tack seals 132, 134 and a plurality of low-tack seals 142, 144, 146.
[0029] The protective panel can be formed from a perforated film configured to block ostomy discharge while allowing gas to flow. In one embodiment, the protective panel 20 may include a plurality of openings 26 having perforations of micrometer size. In some embodiments, the protective panel may include perforations of various sizes and / or various patterns. For example, the protective panel may include microperforations at the bottom and have no perforations at the top near the filter assemblies 22, 122. In another embodiment, the protective panel 120 may be formed from a solid film (e.g., a polymer film without perforations or openings).
[0030] In one embodiment, the protective panel 20 can be formed from a perforated film containing a plurality of openings 26, each having an associated ridge 28. The ridges 28 can be formed around each of the plurality of openings 26 as raised edges projecting away from the protective panel 20, as shown in Figure 4. The ridges 28 can be formed to increase in thickness and volume around the openings 26. For example, the ridges 28 can be formed as microring-shaped or microdonut-shaped portions around the openings 26. The ridges 28 can be configured to increase the surface energy around the openings 26, allowing gas to pass through the plurality of openings 26 while preventing ostomy waste from passing through.
[0031] In one embodiment, the protective panel 20 can be formed from a thermally perforated polymer film. Here, a high-temperature needle used in the thermal perforation process melts a portion of the polymer film when perforating the polymer film to form a plurality of openings 26. The molten portion of the polymer film can deposit around the openings 26 and solidify to form ridges 28 around the plurality of openings 26. Figure 4 is an image of openings 26 with ridges 28 formed in the protective panel 20 by the thermal perforation process. In one embodiment, the ridges 28 can be configured to have a thickness of about 20 micrometers (μm) to about 60 μm, preferably about 30 μm to about 50 μm, and more preferably about 35 μm to 45 μm, in order to increase the surface energy required for waste to pass through the plurality of openings 26. For example, the ridges 28 can be configured to have a thickness of about 41 μm. In another embodiment, the protective panel 20 including a plurality of openings 26 with ridges 28 can be formed from a perforated film perforated by a known method that includes a step of generating ridges 28 around the openings 26, such as a mechanical, laser, dielectric, or pneumatic process.
[0032] The protective panel 20 can be positioned in the ostomy pouch device 10 such that the surface of the protective panel, including the ridge 28, faces the pouch wall to which the prefilter 24 and / or filter assembly 22 is attached. In the embodiments shown in Figures 1 and 2, the protective panel 20 can be positioned so that the ridge 28 protrudes toward the distal wall 12. In such embodiments, the ridge 28 acts as a spacer between the protective panel 20 and the distal side wall 12, preventing the protective panel 20 and the distal wall 12 from sticking together and obstructing the gas flow path to the filter assembly 22.
[0033] From the foregoing, it will be understood that numerous modifications and variations can be realized without departing from the true spirit and scope of the novel concepts of this disclosure. It should be understood that no limitations are intended or should be inferred regarding the specific embodiments illustrated. This disclosure is intended to encompass all variations within the scope of the claims by the appended claims.
Claims
1. Joined along the peripheral seal, the lateral and distal walls of the body define a collection cavity for collecting excrement, An inlet opening defined in the side wall of the body for receiving waste from the stoma, A gas outlet is formed at the top of the distal wall so that the gas collected in the collection cavity can exit, A filter assembly attached to the distal wall and covering the gas outlet, A protective panel disposed between the body side wall and the distal wall, which is joined to the body side wall and the distal wall along the peripheral seal, intermittently attached to the body side wall by at least one body side tuck seal, and intermittently attached to the distal wall by at least one distal tuck seal, Ostomy pouch devices, including those mentioned above.
2. The ostomy pouch device according to claim 1, wherein the at least one body-side tuck seal comprises at least two body-side tuck seals, the at least one distal tuck seal comprises at least two distal tuck seals, and the at least two body-side tuck seals and the at least two distal tuck seals are arranged such that the protective panel is alternately attached to the body-side wall and the distal wall.
3. The ostomy pouch device according to claim 1, wherein the at least one distal tuck seal comprises two high distal tuck seals and one low distal tuck seal, the at least one body-side tuck seal comprises four low body-side tuck seals, the high distal tuck seal is located closer to the filter assembly than the low distal tuck seal and the low body-side tuck seal, and the two high distal tuck seals, the low distal tuck seal, and the four low body-side tuck seals are arranged such that the protective panel is alternately attached to the distal wall and the body-side wall.
4. The ostomy pouch device according to any one of claims 1 to 3, wherein when the ostomy pouch device expands due to the gas collected in the collection cavity, the protective panel is pulled by the body side wall and the distal wall, forming a plurality of drainage channels between the protective panel and the body side wall and between the protective panel and the distal wall, and the at least one body side tuck seal and the at least one distal tuck seal are configured so that excrement trapped between the body side wall and the protective panel and excrement trapped between the distal wall and the protective panel can flow into the collection cavity.
5. The ostomy pouch device according to any one of claims 1 to 4, wherein the at least one body-side tuck seal and the at least one distal tuck seal are configured to limit separation between the body-side wall and the distal wall, thereby minimizing expansion of the ostomy pouch device.
6. The ostomy pouch device according to any one of claims 1 to 5, wherein the at least one body-side tuck seal is formed by attaching the protective panel to the body-side wall in at least one predetermined area, and the at least one distal tuck seal is formed by attaching the protective panel to the distal wall in at least one predetermined area.
7. The ostomy pouch device according to claim 6, wherein the at least one body-side tuck seal is formed by heat-sealing the protective panel and the body-side wall in the at least one predetermined area, and the at least one distal tuck seal is formed by heat-sealing the protective panel and the body-side wall in the at least one predetermined area.
8. The ostomy pouch device according to any one of claims 1 to 7, wherein each of the at least one body-side tuck seal and the at least one distal tuck seal is configured to have a substantially circular shape with a diameter of about 0.2 inches (about 5.08 mm) to about 0.4 inches (about 10.16 mm).
9. The ostomy pouch device according to any one of claims 1 to 8, wherein the protective panel is formed from a perforated film having a plurality of openings.
10. The ostomy pouch device according to claim 9, wherein each of the plurality of openings is provided with a ridge, the ridge being formed around each of the plurality of openings as a raised edge projecting away from the surface of the protective panel.
11. The ostomy pouch device according to claim 10, wherein the ridge is configured to increase in thickness and volume around each of the plurality of openings.
12. The ostomy pouch device according to any one of claims 10 to 11, wherein the ridge is configured to increase the surface energy around each of the plurality of openings, thereby preventing excrement from passing through the plurality of openings while allowing gas to pass through the plurality of openings.
13. The ostomy pouch device according to any one of claims 10 to 12, wherein the protective panel is formed from a polymer film perforated by a thermal perforation process, the ridges are formed by melting a portion of the polymer film when a high-temperature needle used in the thermal perforation process perforates the polymer film to form the plurality of openings, the molten portion of the polymer film is deposited around each of the plurality of openings and solidifies to form the ridges around each of the plurality of openings.
14. The ostomy pouch device according to any one of claims 10 to 13, wherein each of the plurality of openings has a ridge formed on the first surface of the protective panel, the protective panel is positioned such that the first surface faces the distal wall and the ridges protrude toward the distal wall, and the ridges function as spacers between the protective panel and the distal wall to prevent the protective panel and the distal wall from sticking together and obstructing the gas flow path.
15. Joined along the peripheral seal, the lateral and distal walls of the body define a collection cavity for collecting excrement, An inlet opening defined in the side wall of the body for receiving waste from the stoma, A gas outlet is formed at the top of the distal wall so that the gas collected in the collection cavity can exit, A filter assembly attached to the distal wall and covering the gas outlet, A protective panel disposed between the body side wall and the distal wall, formed from a perforated film having a plurality of openings, each of the plurality of openings having a ridge formed around it, Ostomy pouch devices, including those mentioned above.
16. The ostomy pouch device according to claim 15, wherein the ridge is formed as a raised edge projecting away from the surface of the protective panel, and the ridge is configured to increase in thickness and volume around each of the plurality of openings.
17. The ostomy pouch device according to any one of claims 15 to 16, wherein the ridge is configured to increase the surface energy around each of the plurality of openings, thereby preventing excrement from passing through the plurality of openings while allowing gas to pass through the plurality of openings.
18. The ostomy pouch device according to any one of claims 15 to 17, wherein the protective panel is formed from a polymer film perforated by a thermal perforation process, the ridges are formed by melting a portion of the polymer film when a high-temperature needle used in the thermal perforation process perforates the polymer film to form the plurality of openings, the molten portion of the polymer film is deposited around each of the plurality of openings and solidifies to form the ridges around each of the plurality of openings.
19. The ostomy pouch device according to any one of claims 15 to 18, wherein each of the plurality of openings has a ridge formed on the first surface of the protective panel, the protective panel is positioned such that the first surface faces the distal pouch wall and the ridges protrude toward the distal wall, and the ridges function as spacers between the protective panel and the distal wall, preventing the protective panel and the distal wall from sticking together.
20. The ostomy pouch device according to any one of claims 15 to 19, wherein the protective panel is bonded to the body side wall and the distal wall along the peripheral seal, intermittently attached to the body side wall by at least one body side tuck seal, and intermittently attached to the distal wall by at least one distal tuck seal.
21. The ostomy pouch device according to claim 20, wherein the at least one body-side tuck seal comprises at least two body-side tuck seals, the at least one distal tuck seal comprises at least two distal tuck seals, and the at least two body-side tuck seals and the at least two distal tuck seals are arranged such that the protective panel is alternately attached to the body-side wall and the distal wall.
22. The ostomy pouch device according to any one of claims 20 to 21, wherein when the ostomy pouch device expands due to the gas collected in the collection cavity, the protective panel is pulled from both sides, forming a plurality of drainage channels between the protective panel and the body side wall and between the protective panel and the distal wall, and the at least one body side tuck seal and the at least one distal tuck seal are configured so that the excrement trapped between the body side wall and the protective panel and the excrement trapped between the distal wall and the protective panel can flow into the collection cavity.
23. The ostomy pouch device according to any one of claims 20 to 22, wherein the at least one body-side tuck seal is formed by heat-sealing the protective panel and the body-side wall in the at least one predetermined area, and the at least one distal tuck seal is formed by heat-sealing the protective panel and the body-side wall in the at least one predetermined area.