Patch electrode for heart defibrillator

Details Patch electrode for heart defibrillator Patch electrode for heart defibrillator

1990-05-23

1991-08-27

Kamm, William E.

Surgery

Truss

Pad

128642, A61N 105

Patent

active

050424637

ABSTRACT:
A flexible, planar patch electrode for cardiac defibrillation is fabricated from conductive wire mesh covered on an insulation side by a flexible layer of insulation. The electrode provides a substantial electrical contact area of 2-4 square inches and is shaped to provide an essentially rectangular base region with a plurality of protrusions extending longitudinally therefrom. he protrusions may be readily flexed to follow natural heart contours and slots between protrusions may be positioned to avoid features such as arteries near the surface of the heart. Central attachment of a lead within the base region minimizes current density and corresponding I.sup.2 R energy losses.

REFERENCES:
patent: D273514 (1984-04-01), Heilman et al.
patent: 4030509 (1977-06-01), Heilman et al.
patent: 4291707 (1981-09-01), Heilman et al.
patent: 4628937 (1986-12-01), Hess et al.
patent: 4827932 (1989-05-01), Ideker et al.

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