Ostomy pouch

Patent metadata

Field	Value
Publication number	US-12558253-B2
Application number	US-202117335476-A
Country	US
Kind code	B2
Filing date	Jun 1, 2021
Priority date	Jun 2, 2020
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

The invention relates to an ostomy pouch 10, 110. The pouch 10, 110 comprises an inner wall 18b, 118b and an outer wall 20b, 120b sealed about at least part of the periphery thereof to define a cavity for containing a stomal output. An inlet 22, 122 is provided into the cavity for receiving stomal output from an ostomate, in use. The cavity comprises multiple sections 12, 14, 16; 112, 114, 116 separated by waisted sections 13, 15; 113, 115. The maximum width of the sections 12, 14, 16; 112, 114, 116 has a greater width than a minimum width of the waisted section(s) 13, 15; 113, 115.

First claim

The invention claimed is:

1 . An ostomy pouch, comprising:
an inner wall and an outer wall sealed about at least part of a periphery of the inner wall and the outer wall to define a cavity for containing a stomal output, the cavity including, at least a first section, a second section and a third section each comprising a generally rounded shape and at least one continuously curved edge, a first waisted section located between the first section and second section, and a second waisted section located between the second section and the third section, wherein the first and second sections have a maximum width greater than a minimum width of the first waisted section wherein the second and third sections have a maximum width greater than a minimum width of the second waisted section, and wherein one or more radii of curvatures for the at least one continuously curved edge of the second section are greater than one or more radii of curvature of the at least one continuously curved edge of each of the first and/or third sections.

2 . An ostomy pouch as claimed in claim 1 , wherein the pouch is configured to be used in a substantially vertical orientation, with the first section forming an upper section of the pouch, the third section forming a lower section of the pouch, and the second section forming an intermediate section between the upper and lower sections.

3 . An ostomy pouch as claimed in claim 1 , wherein the pouch is configured to be used in a substantially horizontal orientation, with the first section forming a first end section, the third section forming a second end section and the second section forming an intermediate section between the first and second end sections.

4 . An ostomy pouch as claimed in claim 3 , wherein the first section forms a right-side section of the pouch and the third section forms a left-side section of the pouch.

5 . An ostomy pouch as claimed in claim 1 , wherein the inner wall of the pouch comprises an inlet for receiving the stomal output into the cavity.

6 . An ostomy pouch as claimed in claim 5 , wherein the inlet is provided within a portion of the inner wall defining at least part of the first section of the cavity.

7 . An ostomy pouch as claimed in claim 5 , wherein the inlet is provided within a portion of the inner wall defining at least part of the second section of the pouch.

8 . An ostomy pouch as claimed in claim 1 , comprising an open pouch which includes a drain for releasing stomal output from the cavity, the drain comprising a drain aperture comprising an opening within the pouch for releasing stomal output from the cavity.

9 . An ostomy pouch as claimed in claim 8 , wherein the drain comprises a deployable drain, which is moveable between a stowed position and a deployed position.

10 . An ostomy pouch as claimed in claim 9 , wherein the drain is provided in the third section of the pouch.

11 . An ostomy pouch as claimed in claim 1 , comprising a filter arrangement which includes a vent for venting of gaseous stomal output from the cavity, and an odour filter.

12 . An ostomy pouch as claimed in claim 11 , wherein the filter arrangement comprises a pre-filter configured to control the content of stomal output in contact with the vent and/or odour filter.

13 . An ostomy pouch as claimed in claim 11 , wherein the filter arrangement is provided within, or is associated with the first section of the pouch.

14 . An ostomy pouch as claimed in claim 1 , wherein the maximum widths of the first, second and/or third sections are substantially equal.

15 . An ostomy pouch as claimed in claim 1 , wherein the maximum widths of the first, second and/or third sections are different.

16 . An ostomy pouch as claimed in claim 15 , wherein the maximum width of the first section is greater than the maximum width of the second section, and the maximum width of the second section is greater than the maximum width of the third section.

17 . An ostomy pouch of claim 1 , wherein opposing edges of the first and/or second waisted sections are each be concavely-curved.

18 . An ostomy pouch of claim 1 , wherein the at least one continuously curved edge of the first, second and/or third sections is convexly curved.

19 . An ostomy pouch of claim 1 , wherein the cavity is sub-divided into two or more chambers; the ostomy pouch comprising a separation wall between the inner and outer walls dividing the cavity into first and second chambers, and wherein the separation wall comprises a fluid-permeable filtering element operable to filter fluid stomal output from solid stomal output.

20 . An ostomy pouch of claim 1 , further comprising a wafer aperture and ostomy wafer 24 disposed therein in the first section of the pouch, wherein the ostomy wafer comprises a moldable adhesive configured to be manipulated to adjust the shape and size of a central aperture under application of rolling force by a user.

21 . An ostomy pouch of claim 11 , further comprising a removable filter cover label configured to be positioned over the filter vent in use to conceal openings therein and prevent ingress of water therethrough during use.

Assignees

• Convatec Ltd

Inventors

• Holden Clare
• Gopal Mani

Classifications

• A61F5/445

  Colostomy, {ileostomy or urethrostomy} devices (A61F5/441, A61F5/442, A61F5/443 take precedence) · CPC title

• A61F5/4404

  Details or parts · CPC title

• A61F2005/4415

  venting by manual operation · CPC title

• A61F5/441 Primary

  having {venting or} deodorant means, e.g. filters {; having antiseptic means, e.g. bacterial barriers} · CPC title