Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical energy applicator
Reexamination Certificate
2006-08-15
2006-08-15
Manuel, George (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical energy applicator
Reexamination Certificate
active
07092764
ABSTRACT:
The present invention includes a “Z shaped” configuration for a pair of internal windings of a fiber core of a medical electrical lead which can be configured as or windings to provide counter-rotation an implanted cardiac lead. When fully assembled and implanted within a patient, a screw-type active fixation electrode, such as a helical electrode, electrically couples to a coil conductor and mechanically couples to a loop formed at an end of the Z-shaped braided fiber. To remove the lead, an axial traction force is applied and as the Z-shaped braids begin to unwind rotational forces operate to unscrew the helical electrode. A lead constructed according to the present invention rotates counterclockwise and thus essentially unscrews the active fixation electrode.
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Chivers Bruce E.
Foerster Laurie D.
Williams Terrell M.
Manuel George
McDowall Paul H.
Medtronic Inc.
Wolde-Michael Girma
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