Bent cardiac lead with shape memory torque coil

Details Bent cardiac lead with shape memory torque coil Bent cardiac lead with shape memory torque coil

1999-01-05

2000-07-04

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604532, 606 78, 607122, 607123, 128642, A61M 3100

Patent

active

060832169

ABSTRACT:
In one aspect of the present invention, a cardiac lead is provided that includes a connector for coupling to a cardiac stimulator that has a first rotatable member, and a tubular insulating sleeve that has a first end coupled to the connector and a second end. A tip assembly is coupled to the second end. The tip assembly has a second rotatable member. A coiled wire is coupled between the first rotatable member and the second rotatable member. The coiled wire is composed of a shape-memory material and is operable to transmit torque between the first rotatable member and the second rotatable member. Where the lead is provided with a bend, the shape-memory coiled wire retains a straight set, enabling smooth rotation of a fixation corkscrew without precession of the lead tip.

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