Cardiac lead with shape-memory structure

Details Cardiac lead with shape-memory structure Cardiac lead with shape-memory structure

1998-08-05

1999-12-14

Getzow, Scott M.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

A61N 105

Patent

active

060029692

ABSTRACT:
A cardiac stimulator lead is provided that includes a lead body that has a connector for coupling to a cardiac stimulator and a flexible insulating sleeve that has a first outer diameter. An electrode is coupled to the insulating sleeve. A conductor wire is coupled between the connector and the electrode. An annular seat is coupled to the lead body and is composed of a thermally-sensitive shape-memory polymeric material whereby the seal is deformable in situ from a temporary shape with a second outer diameter to a permanent shape with a third outer diameter that is greater than the second outer diameter. A shape-memory polymeric suture sleeve may be included that can tightly clamp the lead sleeve in situ.

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