Thermoplastic elastomeric block copolymer balloon-type...

Details Thermoplastic elastomeric block copolymer balloon-type... Thermoplastic elastomeric block copolymer balloon-type...

A - Human Necessities

61

M

400/3079, 400/30

A61M 25/00 (2006.01) A61L 29/04 (2006.01) A61L 29/14 (2006.01) C08L 53/00 (2006.01)

Patent

CA 1155578

IMPROVED BALLOON-TYPE CATHETER Inventors: Lawrence F. Becker John J. Donohue Dean G. Laurin Henry M. Gajewski ABSTRACT OF THE DISCLOSURE A balloon-type catheter is disclosed having a catheter shank made of a block copolymer having thermo- plastic rubber characteristics with a central block of ethylene-butylene copolymer and terminal blocks of poly- styrene. The inflatable balloon member, and preferably the distal Y-member, of the catheter are made of an elas- tic composition which includes the same or a similar block copolymer, in the presence of polystyrene or equi- valent material as a tackifying agent, polypropylene, and an oil-type plasticizer.

316346

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