Cardiac Pacemakers, Inc.

Chris Zerby

Randy W Westlund

Bruce Alan Tockman

Jay A Warren

Lili Liu

Mohan Krishnan

Stuart R Chastain

Dwight A Skinner

Gwen Crevensten

An apparatus includes a lead body extending from a proximal end to a distal end and having an intermediate portion therebetween. The lead body includes two or more individually insulated conductors, where a first conductor traverses along less than an entire length of the lead body and a second conductor traverses from the proximal end to the distal end of the lead body. Optionally, the first conductor has a different material than the second conductor, for instance having differing electrical properties and/or differing stiffnesses. A method includes varying the stiffness of a coiled conductor assembly including winding a plurality of conductors to form the coiled conductor assembly, and pulling at least one loop of a first conductor away from the coiled conductor assembly.

Lead having varying stiffness and method of manufacturing thereof

A lead has a flexible lead body which extends from a proximal end to a distal end. The lead body has a conductor coupled with an electrode. At least a portion of the flexible lead body includes a polymer of vinylidene fluoride, or a polymer of vinylidene fluoride and silicone rubber. The polymer of vinylidene fluoride includes, but is not limited to, a homopolymer, a copolymer, or a terpolymer.

Endocardial lead with vinylidene fluoride insulation

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New Brighton, MN, United States of America

Chris Zerby