Endocardial extendable screw-in lead

Details Endocardial extendable screw-in lead Endocardial extendable screw-in lead

A - Human Necessities

61

N

326/17.6

A61N 1/04 (2006.01)

Patent

CA 1263448

ENDOCARDIAL EXTENDABLE SCREW-IN LEAD ABSTRACT OF DISCLOSURE An intravascular endocardial lead includes an electrically insulated flexible conductor having a lumen throughout the length thereof. A hollow con- nector element is connected to the proximal end of the conductor, and a hollow elongate electrode is connected to the distal end thereof. A helix assem- bly is positioned in the electrode and is longitudi- nally but non-rotatably movable from a retracted position to an extended position. A stylet is inserted through the lumen of the conductor to move the helix assembly to the extended position. Thereafter, when the conductor, electrode and helix assembly are rotated as a unit about the stylet, the helix assembly will penetrate and positively attach the lead to the body tissue and urge the electrode into engagement with the latter.

491450

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