Implantable electrode with active fixation means

Details Implantable electrode with active fixation means Implantable electrode with active fixation means

1986-08-08

1989-01-24

Jaworski, Francis J.

Surgery

Truss

Pad

128419P, A61N 100, H05G 0000

Patent

active

047994991

ABSTRACT:
An implantable lead assembly to electrically stimulate the heart from a stimulus generator has an electrode head with a surface portion conducive to electrical stimulation, the head having a contour concentric with the axis except along a portion indented toward the axis to form a recess in the head. A conductive lead fastened to the head electrically connects the stimulation-conducive surface portion to the stimulus generator. A rigid hook is secured in fixed relation to the head with the curved portion of the hook lying at all times substantially within the recess and the tip of the hook normally unrestrained to project at all times at least slightly from the recess to engage heart tissue when the head is rotated about the axis by twisting the lead in the direction in which the tip is pointed.

REFERENCES:
patent: 3835864 (1974-09-01), Rasor et al.
patent: 4233992 (1980-11-01), Bisping

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