Patent ID: 9724227
Date: 2017-08-08
CPC Classifications: A61F,A61L

Claim:
1. A base plate for an ostomy appliance, the base plate comprising: an adhesive layer having a skin-facing side, configured to be attached to a skin surface of the user around a stoma, and an opposite backing side, the adhesive layer comprising a first adhesive and a second adhesive surrounding the first adhesive, the first adhesive includes swelling properties and the second adhesive is different from the first adhesive; a stoma-receiving hole extending through the first adhesive from the skin facing side to the backing side; and a backing layer secured to the backing side of the adhesive layer, with an aperture formed in the backing layer to have an aperture diameter that is smaller than a diameter of the stoma-receiving hole before the base plate is applied to a user, the aperture is located over the stoma-receiving hole of the adhesive layer to provide the base plate with a sealing flange that overlaps some but not all of the stoma-receiving hole, the sealing flange forming a circular, planar member substantially parallel to the skin facing side of the adhesive surface, wherein an inner periphery of the sealing flange is configured, when the skin-facing side of the adhesive layer is attached to the skin surface of the user around the stoma, to be distally deflected by peristomal skin projecting above the skin surface around the stoma of the user, such that a seal is created around the stoma by the attached adhesive layer and the deflected inner periphery of the sealing flange.