MOLDABLE ADHESIVE WAFERS

• US 20160151197A1
• Filed: 05/23/2014
• Published: 06/02/2016
• Est. Priority Date: 07/23/2013
• Status: Active Grant

• Current Assignee: Convatec Technologies, Inc. (ConvaTec Group Plc)
• Original Assignee: Convatec Technologies, Inc. (ConvaTec Group Plc)
• Inventors: Johnsen, Kenneth
• Granted Patent: US 10,449,082 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 13/0246 characterised by the skin-adhering layer
• CPC Class Codes: A61F 5/443 having adhesive seals for securing to the body, e.g. of hydrocolloid type, e.g. gels, starches, karaya gums adhesives or sealing pads therefor A61L24/00
• CPC Class Codes: A61F 5/445 Colostomy, ileostomy or urethrostomy devices A61F5/441, A61F5/442, A61F5/443 take precedence
• CPC Class Codes: A61F 5/448 Means for attaching bag to seal ring
• CPC Class Codes: A61L 24/001 Use of materials characterised by their function or physical properties

Abstract

Disclosed herein are methods and devices for coupling and securing a medical device appliance. In particular, one piece moldable adhesive structures are disclosed which allow customization of an attachment wafer to the size and shape of, for example, a stoma, while allowing flexibility and security for attaching a medical device, such as an ostomy pouch or other device to the subject.

Claims

1. A moldable adhesive comprising:

at least two adhesive layers; and

at least one layer of thin, flexible, elastic film between two adjacent adhesive layers to form a composite adhesive structure,

wherein the moldable adhesive is formed by rolling or folding the composite adhesive structure onto itself such that the inner surface of the composite structure upon rolling provides a counteracting force to allow the edge of the rolled composite adhesive structure to partially return to its original size and shape.

2. The moldable adhesive of claim 1, further comprising a wafer unit, wherein the moldable adhesive is attached to the wafer unit to form a molded surface of the wafer unit, wherein the molded surface of the wafer unit faces away from the body.

3. The moldable adhesive of claim 2, wherein the molded surface of the wafer unit has a layer of film that extending partially across the surface, such that the inner opening of the film is larger than the inner opening of the surface.

4. The moldable adhesive of claim 3, wherein the film layer is thin and flexible.

5. The moldable adhesive of claim 2, wherein the moldable adhesive provides an adhesive base of attachment for a faceplate of an ostomy pouch.

6. The moldable adhesive of claim 5, wherein the faceplate is connected to the pouch as a separate element.

7. The moldable adhesive of claim 5, wherein the faceplate is adhesive.

8. The moldable adhesive of claim 5, wherein the outer edge of the composite structure is larger than the opening in the pouch faceplate.

9. The moldable adhesive of claim 1, wherein the separate adhesive layers comprise the same adhesive formulation.

10. The moldable adhesive of claim 1, wherein the separate adhesive layers comprise different adhesive formulations.

11. The moldable adhesive of claim 1, wherein outer and inner edges of the composite structure are closed, non-intersecting geometric figures.

12. The moldable adhesive of claim 11, the figures comprise a conic figure.

13. The moldable adhesive of claim 11, wherein the figures are a circle.

14. The moldable adhesive of claim 11, wherein the figures are a polygon.

15. A moldable ostomy appliance comprising a moldable ostomy wafer and an ostomy pouch, wherein the moldable ostomy wafer comprises the moldable adhesive of claim 1.