Title:
CARDIAC LEAD WITH SHAPE-MEMORY STRUCTURE
Document Type and Number:
WIPO Patent Application WO2000007662
Kind Code:
A3
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 seal 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.
Inventors:
MACHEK JAMES E
SPEHR PAUL R
SCHROEPPEL EDWARD A
SPEHR PAUL R
SCHROEPPEL EDWARD A
Application Number:
PCT/US1999/017449
Publication Date:
June 15, 2000
Filing Date:
August 04, 1999
Export Citation:
Assignee:
INTERMEDICS INC (US)
International Classes:
A61N1/05; A61N1/375; (IPC1-7): A61N1/375; A61N1/05
Foreign References:
| US4913147A | 1990-04-03 | |||
| US4885503A | 1989-12-05 | |||
| US4259962A | 1981-04-07 | |||
| US5257622A | 1993-11-02 | |||
| EP0625359A2 | 1994-11-23 | |||
| US5603730A | 1997-02-18 | |||
| US5189110A | 1993-02-23 | |||
| US5876429A | 1999-03-02 |
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