Cardiac Pacemakers, Inc.

Michael C Smith

Mohan Krishnan

Daniel J Cooke

Shrojalkumar Desai

G Shantanu Reddy

Mark W Boden

Marlene C Schwarz

Frederick H Strickler

Desai Shrojalkumar

In accordance with various aspects of the invention, copolymers comprising styrene and isobutylene monomers are used in the construction of implantable and insertable medical devices for electrical stimulation, including, for example, electronic signal generating components and electrical leads for such devices.

Styrene-isobutylene copolymers and medical devices containing the same

The present invention pertains to polyisobutylene urethane, urea and urethane/urea copolymers, to methods of making such copolymers and to medical devices that contain such polymers. According to certain aspects of the invention, polyisobutylene urethane, urea and urethane/urea copolymers are provided, which comprise a polyisobutylene segment, an additional polymeric segment that is not a polyisobutylene segment, and a segment comprising a residue of a diisocyanate. According to other aspects of the invention, polyisobutylene urethane, urea and urethane/urea copolymers are provided, which comprise a polyisobutylene segment and end groups that comprise alkyl-, alkenyl- or alkynyl-chain-containing end groups.

Polyisobutylene urethane, urea and urethane/urea copolymers and medical devices containing the same

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Lino Lakes, MN, United States of America

Michael C Smith