Collecting device for body fluids

Patent metadata

Field	Value
Publication number	US-9597428-B2
Application number	US-201414157543-A
Country	US
Kind code	B2
Filing date	Jan 17, 2014
Priority date	Apr 17, 2008
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A body waste collecting device includes a collecting pouch and an adhesive wafer for attachment to the body. The adhesive wafer includes a backing layer, a first adhesive and a second adhesive. The second adhesive includes a polar plasticizing oil or a combination of polar plasticizing oils in the content of above 10% (w/w) of the second adhesive, and at least one polar polyethylene copolymer, where the content of the polyethylene copolymer is 10-50% (w/w) of the second adhesive, and the polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1N).

First claim

What is claimed is:

1. A body waste collecting device comprising
a collecting pouch
an adhesive wafer for attachment to a body, comprising
a backing layer;
a first adhesive having a skin-facing surface configured for direct attachment to the body; and
a second adhesive having a skin-facing surface configured for direct attachment to the body,

wherein said second adhesive comprises a polar plasticising oil or a combination of polar plasticising oils in a content of above 10% (w/w) of the second adhesive, and at least one polar polyethylene copolymer, wherein the polyethylene copolymer is 10-50% (w/w) of the second adhesive, and the polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1N).

2. The body waste collecting device according to claim 1 , wherein the second adhesive in continuous form exhibiting a moisture vapour transmission rate of at least 100 g/m 2 /day for a 150 μm adhesive sheet when measured according to MVTR Test Method.

3. The body waste device according to claim 1 , wherein the polar polyethylene copolymer is selected from the group consisting of ethylene vinyl acetate, ethylene vinyl acetate carbon monoxide, ethylene butyl acetate, ethylene vinyl alcohol, ethylene butyl acrylate, ethylene butyl acrylate carbon monoxide, and combinations thereof.

4. The body waste collecting device according to claim 3 , wherein the polar polyethylene copolymer is ethylene vinyl acetate.

5. The body waste collecting device according to claim 4 , wherein the ethylene vinyl acetate has a content of at least 40% (w/w) vinyl acetate preferably with 40-80% (w/w) vinyl acetate.

6. The body waste collecting device according to claim 1 , wherein the polar polyethylene copolymer is 10-45% (w/w) of the second adhesive, preferably 15-30%.

7. The body waste collecting device according to claim 1 , wherein the polar polyethylene copolymer has a molecular weight of above 250,000 g/mol.

8. The body waste collecting device according to claim 1 , wherein the polar plasticising oil is selected from the group of liquid rosin derivatives, aromatic olefin oligomers, vegetable and animal oils and derivatives, preferable polar oils are esters, ethers and glycols and particularly preferred is poly propylene oxide such as alpha-butoxy-polyoxypropylene.

9. The body waste collecting device according to claim 8 , wherein the polar plasticising oil is 20-70% (w/w) of the second adhesive, preferably 30-65%.

10. The body waste collecting device according to claim 1 , wherein the second adhesive further comprises a polymer with MFI>2 (190° C./21.1N).

11. The body waste collecting device according to claim 1 , wherein the second adhesive further comprises a tackifying resin selected from the group consisting of natural, modified or synthetic resins.

12. The body waste collecting device according to claim 11 , wherein the tackifying resin is 0.1-40% (w/w) of the second adhesive, preferably 10-20%.

13. The body waste collecting device according to claim 1 , wherein the first adhesive comprises absorbent particles.

14. The body waste collecting device according to claim 13 , wherein the absorbent particles are selected from hydrocolloids, microcolloids and super absorbers.

15. The body waste collecting device according to claim 1 , wherein the first adhesive is a hydrocolloid pressure sensitive adhesive.

16. The body waste collecting device according to claim 1 , wherein the first adhesive is located adjacent to a body waste source.

17. The body waste collecting device according to claim 1 , wherein the first adhesive is located on the skin-facing surface of the second adhesive.

18. The body waste collecting device according to claim 1 , wherein the second adhesive is located on a pouch-facing surface of the adhesive wafer.

19. The body waste collecting device according to claim 1 , wherein the second adhesive is located at an outer rim of the adhesive wafer.

20. The body waste collecting device according to claim 1 , wherein the second adhesive is in a form of a ring.

21. The body waste collecting device according to claim 1 , wherein the first adhesive partly covers the second adhesive on the skin-facing surface.

22. The body waste collecting device according to claim 1 , wherein the second adhesive partly covers the adhesive wafer.

23. The body waste collecting device according to claim 1 , wherein the adhesive wafer has a recess for adapting the first adhesive.

24. The body waste collecting device according to claim 1 , further comprising a backing layer for the first adhesive.

25. The body waste collecting device according to claim 1 , wherein the collecting device is an ostomy appliance.

26. The body waste collecting device according to claim 1 , wherein the collecting device is a faecal collecting device.

27. The body waste collecting device according to claim 1 , wherein the collecting device is a fistula collecting device.

28. The body waste collecting device according to claim 1 , wherein the collecting pouch is detachable.

29. The body waste collecting device according to claim 1 , wherein the collecting pouch is integrated with the adhesive wafer.

30. A body waste collecting device comprising
a collecting pouch
an adhesive wafer for attachment to a body, comprising
a backing layer;
a first adhesive having a skin-facing surface configured for direct attachment to the body; and

a second adhesive having a skin-facing surface configured for direct attachment to the body,
wherein said second adhesive comprises a polar plasticising oil or a combination of polar plasticising oils in the content of above 40% (w/w) of a second adhesive, and at least one polar polyethylene copolymer, wherein the polyethylene copolymer is 10-50% (w/w) of the second adhesive, and the polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1N).

Assignees

• Coloplast As

Inventors

• Stroebech Esben
• Bach Anders
• Buus Hasse

Classifications

• A61L28/0034

  Use of materials characterised by their function or physical properties · CPC title

• C08L71/02

  Polyalkylene oxides · CPC title

• A61L24/06

  obtained by reactions only involving carbon-to-carbon unsaturated bonds {(A61L24/043, A61L24/046 take precedence)} · CPC title

• A61F5/445

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

• A61L24/0031

  Hydrogels or hydrocolloids · CPC title