Convex ostomy barrier

Patent metadata

Field	Value
Publication number	US-11896515-B2
Application number	US-201716341227-A
Country	US
Kind code	B2
Filing date	Nov 15, 2017
Priority date	Nov 15, 2016
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A convex ostomy barrier includes a skin barrier, an inlet opening for receiving a stoma, and a convex insert. The convex insert includes an inner flange, an outer flange, and a middle portion arranged therebetween. The middle portion includes a pouch side surface for attaching a flange, a core-out portion configured to improve the flexibility of the convex insert, and a skin barrier support structure for supporting the skin barrier.

First claim

What is claimed is:

1. A convex ostomy barrier assembly for attaching an ostomy appliance to a peristomal skin surrounding a stoma, the convex ostomy barrier assembly comprising:
a skin barrier comprising an adhesive;
an inlet opening for receiving a stoma;
a convex insert arranged adjacent the skin barrier, the convex insert having a convex ring-shaped body and comprising:
an inner flange;
a middle portion including a pouch-side surface, a core-out portion, and a skin barrier support structure for supporting the skin barrier; and
an outer flange, wherein the inner flange and the outer flange are connected by the middle portion and arranged in different axial planes to define the convex ring-shaped body,
wherein the middle portion comprises a radial wall having the pouch-side surface radially and directly extending from the outer flange toward the inlet opening, and an axial wall extending axially from the radial wall in a body-side direction, wherein the inner flange extends from the axial wall toward the inlet opening, wherein the outer flange, the middle portion, and the inner flange provide a protrusion in the body-side direction, and wherein the pouch-side surface is defined on a pouch-side of the radial wall and located axially between the inner flange and an outer periphery of the outer flange; and

a flange including a body-side coupling ring attached to the pouch-side surface of the convex insert.

2. The convex ostomy barrier assembly of claim 1 , wherein the skin barrier support structure includes a plurality of support structures extending axially from a body-side of the radial wall; wherein the plurality of support structures form a split ring shape, wherein each of the plurality of support structures is surrounded by the core-out portion and includes a sloped body-side surface configured to support the skin barrier having a convex body-side surface.

3. The convex ostomy barrier assembly of claim 1 , wherein the core-out portion is defined by a plurality of core-out windows, and the skin barrier support structure includes a plurality of ribs, wherein the plurality of core-out windows and the plurality of ribs are arranged such that adjacent ribs are spaced apart from each other by a core-out window therebetween, and each of the core-out windows is defined by the radial wall, the axial wall, and the adjacent ribs.

4. The convex ostomy barrier assembly of claim 3 , wherein the convex insert includes about 8 ribs to about 30 ribs.

5. The convex ostomy barrier assembly of claim 1 , wherein the convex ostomy barrier assembly includes a tape, wherein the convex insert is attached to a pouch-side of the tape, and the skin barrier is attached to a body-side of the tape, wherein the outer flange has a concave body-side surface configured to conform to a curved contour of a lower base section of a convex portion of the convex ostomy barrier assembly.

6. The convex ostomy barrier assembly of claim 5 , wherein at least some portion of a body-side surface of the outer flange, the skin barrier support structure, or a body-side surface of the inner flange is attached to the tape.

7. The convex ostomy barrier assembly of claim 6 , wherein at least the body-side surface of the outer flange is heat sealed to the tape.

8. The convex ostomy barrier assembly of claim 1 , wherein the pouch-side surface of the middle portion is a flat surface defined on the pouch-side of the radial wall, wherein the flange is attached to the convex insert via a flange film, and wherein the flange film is attached to the pouch side surface.

9. The convex ostomy barrier assembly of claim 8 , wherein the flange film is heat sealed to the pouch side surface.

10. A convex insert for an ostomy barrier having a convex ring-shaped body and comprising:
an inlet opening;
an inner flange;
a middle portion including a pouch-side surface, a core-out portion, and a skin barrier support structure, wherein the core-out portion is configured to improve flexibility of the convex insert; and
an outer flange, wherein the inner flange and the outer flange are connected by the middle portion and arranged in different axial planes to define the convex ring-shaped body,
wherein the middle portion comprises a radial wall having the pouch-side surface radially and directly extending from the outer flange toward the inlet opening, and an axial wall extending axially from the radial wall in a body-side direction, wherein the inner flange extends from the axial wall toward the inlet opening, wherein the outer flange, the middle portion, and the inner flange provide a protrusion in the body-side direction, and wherein the pouch-side surface is defined on a pouch-side of the radial wall and located axially between the inner flange and an outer periphery of the outer flange.

11. The convex insert of claim 10 , wherein the skin barrier support structure includes a plurality of support structures extending axially from a body-side of the radial wall; wherein the plurality of support structures form a split ring shape, wherein each of the plurality of support structures is surrounded by the core-out portion and includes a sloped body-side surface.

12. The convex insert of claim 10 , wherein the core-out portion is defined by a plurality of core-out windows, and the skin barrier support structure includes a plurality of ribs, wherein the plurality of core-out windows and the plurality of ribs are arranged such that adjacent ribs are spaced apart from each other by a core-out window therebetween, and each of the core-out windows is defined by a radial wall, an axial wall, and the adjacent ribs.

13. The convex insert of claim 10 , wherein the skin barrier support structure includes a ring-shaped structure extending axially from a body-side of the radial wall, wherein the core-out portion is defined by two ring-shaped core-out portions, and wherein the skin barrier support structure is arranged between the two ring-shaped core-out portions and has a sloped body-side surface.

14. The convex insert of claim 10 , wherein the skin barrier support structure includes a plurality of rod-like structures extending axially from a body-side of the radial wall.

15. The convex insert of claim 10 , wherein the skin barrier support structure includes a plurality of tube-like structures extending axially from a body-side surface of the radial wall.

16. The convex insert of claim 10 , wherein the core-out portion is defined by a plurality of openings in the middle section, and the skin barrier support structure is defined by a body-side surface of the middle section between the plurality of openings.

Assignees

• Hollister Inc

Inventors

• Czaplewski Gregory J
• Scalise Anthony
• Tran Tuan
• Visconti Peter L
• Nielsen Kenneth
• Lugenbill Jon Z
• March Daniel A

Classifications

• A61F5/443 Primary

  having {adhesive seals for securing to the body, e.g. of} hydrocolloid type seals, e.g. gels, starches, karaya gums · CPC title

• A61F5/4404

  Details or parts · CPC title

• A61F5/445

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

• A61F5/451 Primary

  Genital {or anal} receptacles (A61F5/441, A61F5/442, A61F5/443 take precedence {; other body securing means A61F5/4408; devices for taking faeces samples A61B10/0038; devices for taking urine samples A61B10/007}) · CPC title