EXTERNAL URINARY CATHETER HAVING INTEGRAL ADHESIVE MEANS

摘要

The external urinary catheter (10) includes (a) a single tubular sheath (11) having a unitary construction made of silicone rubber, the silicone rubber having an inner surface (12) and an outer surfac e (14); and (b) a layer (IS) of adhesive material bonded to a first portion of the inner surface; wherein the adhesive materia l can releasably contact portions of the outer surface such that the inner surface of the silicone rubber sheath can be rolled up o n the outer surface thereof. A method of making an ex- ternal urinary catheter is also disclosed. Said method includes the steps of (a) coating a first portion of a mandrel with an adhe- sive material; (b) subsequently overcoating the mandrel with a silicone rubb er solution to form an overcoat layer made of unvul- canized silicone rubber; and (c) vulcanizing the unvulcanized silicone rubbe r such that constituents of the silicone rubber cross-link to form an elastomeric sheath having a unitary construction made of vulcanized silicone rubber; the silicone rubber sheath having an inner surface and outer surface; and the adhesive material being bonded to a first portion of the inner surface.