Medical electrical lead with conductors coiled around an inner t

Details Medical electrical lead with conductors coiled around an inner t Medical electrical lead with conductors coiled around an inner t

1997-12-04

2000-08-01

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

A61N 105

Patent

active

060960698

ABSTRACT:
A lead which is provided with a lead body and a connector assembly which are flexible and resistant to fatigue caused by flexing of the lead relative to an associated implantable medical device to which the lead is coupled. The lead is provided with an elongated lead body with a connector assembly located at its proximal end and carrying at least two elongated conductors extending along the lead body to the connector assembly, arranges such that distal to a first point along the lead body the lead body is provided with at least two separate longitudinal lumens, each carrying at least one of the two conductors and proximal to the first point, the lead is provided with a tubular member, arranged such that the two conductors extend proximally from the first point wrapped helically around the tubular member. In a preferred embodiment, the lead carries at least three elongated conductors, and at least one of the conductors is wrapped helically around the tubular at a pitch greater than the diameter the conductors. In a more preferred embodiment, at least one conductor is wrapped helically around the tubular member at a pitch greater than the diameter of the lead body.

REFERENCES:
patent: 3416533 (1968-12-01), Fisher et al.
patent: 4540236 (1985-09-01), Peers-Trevarton
patent: 4704103 (1987-11-01), Stober et al.
patent: 4934366 (1990-06-01), Truex et al.
patent: 5125915 (1992-06-01), Berry et al.

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