Patent ID: 11911310
Assignee: COLOPLAST A/S
Field: Basic materials chemistry (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 0:
1. An adhesive wafer for an ostomy device, the adhesive wafer comprising:
a backing layer;
an adhesive layer deposited on a proximal side of the backing layer, the adhesive layer attachable to skin around a stoma of a user;
a hole formed through the adhesive wafer, with an edge of the hole defining an inner rim of the adhesive wafer; and
a release layer deposited on a distal side of the backing layer, where a first portion of the release layer is uncovered for exposure to stomal output from the stoma;
wherein the first portion of the release layer, when exposed to the stomal output, is adapted to release a neutralizer into a peristomal gap between the inner rim of the adhesive wafer and the stoma of the user;
wherein the neutralizer neutralizes and reduces aggressiveness of the stomal output to the adhesive layer, and the neutralizer is selected from the group consisting of cholestyramine, kaolin, calcium acetate, calcium carbonate, zinc sulfate, zinc oxide, strontium chloride, lima bean inhibitor, ovomucoids, pancreatic inhibitor, aprotinin, papaya trypsin inhibitor, soybean trypsin inhibitor, potato trypsin inhibitor, barley trypsin inhibitor, and squash trypsin inhibitor.