Bioelectrical electrode

Patent 5024227 Issued on June 18, 1991. Estimated Expiration Date:

June 18, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventor

Schmid, Walter

Application

No. 188753 filed on 04/29/1988

US Classes:

600/391, Adhesive600/395, Electrode composition607/152Flexible sheet or resilient pad

Examiners

Primary: Cohen, Lee S.

Attorney, Agent or Firm

Foley & Lardner

Foreign Patent References

1144606 CA. 04/13/1983
0085327 EP. 08/13/1983
0096330 EP. 12/13/1983
0115778 EP. 08/13/1984
2727396 DE 12/13/1978
3136193 DE. 04/13/1983
2464078 FR. 03/13/1981

International Class

A61B 005/04

Foreign Application Priority Data

1985-03-01 DE

Abstract

A bioelectrical electrode is disclosed consisting of metal on its skin-side contact surface and having a conductive adhesive layer covering at least part of the skin-side contact surface. The conductive adhesive layer is formed as a layer of an aqueous dispersion adhesive that is pressure-sensitive and contains a substance that dissociates in aqueous solution. The preferred adhesive layer comprises an aqueous dispersion of a thermoplastic acrylic resin and gelatin. The preferred dissociating substance is MgCl2 and the preferred metal contact surface is zinc. The adhesive layer may additionally contain citric acid.