Assembly and method of communicating electrical signals between

Details Assembly and method of communicating electrical signals between Assembly and method of communicating electrical signals between

1990-05-01

1992-09-01

Cohen, Lee S.

Surgery

Truss

Pad

128642, A61N 105

Patent

active

051430894

ABSTRACT:
This invention provides improved electrode structures for electrically communicating between electrical therapeutic equipment and internal body tissue. Bundles of highly flexible, highly electrically conductive, preferably non-metallic carbon based, isotropically conductive fibers of diameters of the individual fibers in the micron range provide very large surface areas to apply electrical energy to the body tissue. Substantially non-electrically polarizing properties, particularly of carbon, and a substantially non-thrombogenic surface (present in carbon) represent critical features of the tissue to electrode interface in biomedical applications. Thus, more reliable-longer life implants of heart defibrillators, neurostimulators and the like result. This electrode structure with accompanying integrated electrical lead is implantable by puncture through body tissue thereby avoiding major surgery and general anesthesia required in the prior art. Accordingly the invention relates to the electrode and accompanying more effective therapeutic equipment as well as methods of therapeutic treatment with electrical current technology.

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Stgrrenburg et al., "Carbon Fiber as an Electrode Material", IEEE Trans Biomed Eng. vol. BMB29, No. 5, May 1982, 352-355.
James et al., "Carbon Fibre Microelectrodes", J. Neuro. Methods, 1, No. 3, Oct. 1979, 279-287.
Newsweek, Jun. 18, 1979, p. 77-78.
Mund et al., "Development . . . Pacemakers", Siemens Forsch, pp. 227-234, 1979.
Watkins, Jr. et al., "Automatic defibrillation in men", Thoracic & Cord. Surg., 82:492-500, 1981.

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