External urinary catheter having integral adhesive means

Details External urinary catheter having integral adhesive means External urinary catheter having integral adhesive means

A - Human Necessities

61

F

A61F 5/453 (2006.01) B29C 41/14 (2006.01) B29C 41/22 (2006.01)

Patent

CA 2095030

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 surface (14); and (b) a layer (IS) of adhesive material bonded to a first portion of the inner surface; wherein the adhesive material can releasably contact portions of the outer surface such that the inner surface of the silicone rubber sheath can be rolled up on 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 rubber solution to form an overcoat layer made of unvul- canized silicone rubber; and (c) vulcanizing the unvulcanized silicone rubber 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.

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