Endocardial extendable screw-in lead

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

1983-09-23

1986-02-18

Cohen, Lee S.

Surgery

Truss

Pad

128419P, A61N 104

Patent

active

045706425

ABSTRACT:
An intravascular endocardial lead includes an electrically insulated flexible conductor having a lumen throughout the length thereof. A hollow connector element is connected to the proximal end of the conductor, and a hollow elongate electrode is connected to the distal end thereof. A helix assembly is positioned in the electrode and is longitudinally 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.

REFERENCES:
patent: 4106512 (1978-08-01), Bisping
patent: 4146036 (1979-03-01), Dutcher et al.
patent: 4217913 (1980-09-01), Dutcher
patent: 4463765 (1984-08-01), Gold

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