Ostomy bag with integral breathable gasket
AssigneeC. R. Bard, Inc.
InventorsDouglas Allen, Jr., Eric Flam
Life of this patent
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Abstract
A new ostomy bag having an integral breathable ostomy gasket derived from the non-aqueous reaction of a polyisocyanate and a polyoxyalkylene polyol moiety having a hydrophilic filler incorporated within the polyol moiety prior to the reaction of the polyisocyanate and the polyol. The bag includes hydrophobic material welded to the bag serving as a backing for the gasket.
Claims5
An ostomy bag having a front face provided with a stoma opening therein, a backing of hydrophobic material welded to said front face surrounding said opening, and a skin barrier gasket on the exposed face of the backing, said skin barrier gasket being a polymeric composition comprising a product derived from the generally non-aqueous reaction of an organic polyisocyanate, and a polyoxyalkylene polyol moiety comprising a mixture of a major portion of polyol having a diol functionality and a minor portion of polyol of at least triol functionality, and having incorporated into the polyol moiety prior to the generally non-aqueous reaction of the polyisocyanate and the polyol moiety a hydrophilic filler wherein there is provided a polymeric matrix characterized by the physical encapsulation of the hydrophilic filler within the polymeric matrix.
Dependencies are inferred from the claim text.