Ostomy bag having a textile layer bonded to a barrier film along a portion of an outer periphery of the ostomy bag

Patent metadata

Field	Value
Publication number	US-11617675-B2
Application number	US-202117167114-A
Country	US
Kind code	B2
Filing date	Feb 4, 2021
Priority date	May 25, 2012
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

An ostomy bag includes a textile layer bonded to the barrier film along a portion of an outer periphery of the ostomy bag.

First claim

What is claimed is:

1. An ostomy bag comprising:
a barrier film; and
a textile layer bonded to the barrier film along a portion of an outer periphery of the ostomy bag;
wherein the textile layer comprises a number of threads, with each of the threads comprising a plurality of fiber filaments;
wherein the textile layer is one of a woven textile and a knitted textile that is sealed to the barrier film in an attachment zone formed along the portion of the outer periphery of the ostomy bag such that less than an entirety of the fiber filaments of the textile layer in the attachment zone is embedded in the barrier film;
wherein the fiber filaments of the textile layer have a higher melting point than the barrier film;
wherein the textile layer has an increased wear strength compared to a nonwoven layer as measured by resistance to pilling evaluated according to test standard DS/EN ISO 12945-2:2000;
wherein a peel strength between the textile layer and the barrier film is above 5 N per 12.5 mm width in the attachment zone;
wherein the textile layer provides the ostomy bag with a resistance against failure caused by tear forces in the attachment zone, where the resistance against failure is at least a factor of 2 greater than a resistance against failure caused by tear forces for a nonwoven layer.

2. The ostomy bag of claim 1 , wherein the textile layer bonded to the barrier film provides a comfort layer for the ostomy bag, and fiber filaments in the attachment zone that are not embedded in the barrier film provide a first portion of an external surface of the comfort layer having tactile characteristics identical to tactile characteristics in a second portion of the external surface of the comfort layer, the second portion located outside the attachment zone.

3. The ostomy bag of claim 1 , wherein a basis weight of the textile layer is in a range from 40-100 g/m2.

4. The ostomy bag of claim 1 , wherein a thread density for the threads of the textile layer is in a range from 30-50 threads/cm.

5. The ostomy bag of claim 1 , wherein a number of filaments per thread in the plurality of fiber filaments is in a range from 30-150 filaments/thread.

Assignees

• Coloplast As

Inventors

• Freiding Markus

Classifications

• A61F5/4404

  Details or parts · CPC title

• A61F5/445 Primary

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

• B31B70/00

  Making flexible containers, e.g. envelopes or bags · CPC title

• B31B70/64

  by applying heat or pressure (to unite areas where adhesives are applied B31B70/62) · CPC title