Patent ID: 6381500
Filing Date: 2002-04-30
Classification: A61N

Abstract:
A tip electrode for a cardiac lead, comprising:a tubular shank having a longitudinal bore extending therethrough, the longitudinal bore comprising a first longitudinal portion and a second longitudinal portion, the first longitudinal portion comprising at least one internal thread; a corkscrew disposed in the longitudinal bore, the corkscrew adapted to have a first range of axial movement and a second range of axial movement wherein in the first range of axial movement the at least one internal thread is engaged, and in the second axial range of axial movement wherein the at least one internal thread is not engaged and the corkscrew partially projecting from the second longitudinal portion; and a rotation device adapted to rotate and move the corkscrew axially while in the first range of axial movement and to screw the corkscrew into myocardial tissue while in the second range of movement.