Ostomy appliance with multiple release liners

Patent metadata

Field	Value
Publication number	US-9233019-B2
Application number	US-45236008-A
Country	US
Kind code	B2
Filing date	Jun 17, 2008
Priority date	Jun 25, 2007
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

An ostomy appliance for attachment to the stoma body comprising a soft adhesive wafer ( 1 ) having a tensile strength at 20% strain of less than 0.75N/4 mm and a collecting pouch attachable to an adhesive wafer, the wafer comprises a backing layer and a skin-facing adhesive layer, wherein the adhesive skin-facing surface of the wafer is provided with at least two release liners ( 3, 4 ) each covering at least a part of the adhesive surface and together covering the entire adhesive surface.

First claim

The invention claimed is:

1. An ostomy appliance for attachment to a stoma body comprising a soft adhesive wafer and a collecting pouch attachable to the adhesive wafer at an attachment zone thereof, wherein the wafer includes a backing layer and a skin-facing adhesive layer with an adhesive surface, the adhesive surface of the wafer having a three split release liner system, with two folded side liners not covering the middle section of the wafer and with a third middle liner having folded edge portions and covering the middle portion of the adhesive surface having the same width as the attachment zone for the pouch or narrower, the release liners each covering at least a part of the adhesive surface and together these liners covering the entire adhesive surface, said wafer having a tensile strength at 20% strain of less than 0.75N/4 mm.

2. The ostomy appliance according to claim 1 , wherein the release liners are organised symmetrically over the wafer.

3. The ostomy appliance according to claim 1 , wherein the release liners are organised asymmetrically over the wafer.

4. The ostomy appliance according to claim 1 , wherein the release liners are siliconised.

5. The ostomy appliance according to claim 1 , wherein the adhesive has a G* at 0.01 hz of less than 15000 Pa.

6. The ostomy appliance according to claim 1 , wherein the adhesive has a G* at 0.01 hz of less than 7500 Pa.

7. The ostomy appliance according to claim 1 , wherein the adhesive comprises ethylene vinyl acetate.

8. The ostomy appliance according to claim 1 , wherein the backing layer is in the form of a polymer film, coating, laminate, textile or non-woven.

9. The ostomy appliance according to claim 1 , wherein the backing layer has a force below 0.75 N/4 mm at 20% extension.

10. The ostomy appliance according to claim 1 , wherein the collecting pouch is detachable.

11. The ostomy appliance according to claim 1 , wherein the collecting pouch is integrated with the wafer.

12. The ostomy appliance according to claim 1 , wherein the backing layer has a force below 0.5 N/4 mm at 20% extension.

13. The ostomy appliance according to claim 1 , wherein the adhesive comprises a polyalkyleneoxide polymer and an organosiloxane based cross-linked adhesive system.

14. The ostomy appliance according to claim 13 , wherein the polyalkylene oxide polymer is polypropyleneoxide.

Assignees

• Lykke Mads
• Stroebech Esben
• Bach Anders
• Toftkaer Astrid
• Buus Hasse
• Kongebo Tom
• Coloplast As

Inventors

• Lykke Mads
• Stroebech Esben
• Bach Anders
• Toftkaer Astrid
• Buus Hasse
• Kongebo Tom

Classifications

• A61L24/046

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds (A61L24/043 takes precedence) · CPC title

• A61L15/225

  Mixtures of macromolecular compounds · CPC title

• A61L24/0036

  Porous materials, e.g. foams or sponges · CPC title

• A61F5/4404 Primary

  Details or parts · CPC title

• A61F5/445

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