Stylet feature for resisting perforation of an implantable lead

Details Stylet feature for resisting perforation of an implantable lead Stylet feature for resisting perforation of an implantable lead

2005-09-13

2005-09-13

Schaetzle, Kennedy (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

C600S585000

Reexamination Certificate

active

06944506

ABSTRACT:
A stylet unit for implanting a removable lead system for a cardiac stimulation device includes an elongated main body having an enlarged feature at the distal end of the main body with a rounded blunt tip end, a width greater than the width of the distal end of the main body, and a length greater than the width. A finger grip is provided at a proximal extremity of the elongated main body for manipulating the stylet unit. Lead system includes an elongated tubular lead body containing an elongated coil conductor with a plurality of coil windings defining a passageway extending the length of the coil conductor and having inner surfaces facing toward the passageway. The enlarged feature of the stylet is sufficiently long to assure that it advances along the passageway in slidable engagement with the inner surfaces of the coil conductor but without thrusting between adjoining coils.

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