Bioelectrical electrode
AssigneeARBO Medizin-Technologie GmbH.
InventorWalter Schmid
Life of this patent
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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 MgCl.sub.2 and the preferred metal contact surface is zinc. The adhesive layer may additionally contain citric acid.
Claims35
A bioelectrical electrode, with an electrode body (1) consisting of metal at least on its skin-side contact surface and with a conductive adhesive layer (13) covering at least part of the skin-side contact surface, (3), wherein the conductive adhesive layer is formed as a layer (13) of an aqueous dispersion adhesive having the property of being pressure-sensitive and containing a substance which dissociates in aqueous solution wherein said adhesive comprises an aqueous dispersion of a thermoplastic acrylic resin and gelatin.
A bioelectrical electrode, with an electrode body consisting of metal at least on its skin-side contact surface and having a conductive adhesive layer covering at least part of the skin-side contact surface, wherein the conductive adhesive layer consists essentially of an aqueous dispersion adhesive that is pressure-sensitive, a substance that dissociates in aqueous solution, and gelatin, said electrode formed by the steps of:
- preparing a heated solution of gelatin and an aqueous dispersion of a thermoplastic acrylic resin, at least one of said solution and said aqueous dispersion comprising the substance that dissociates in aqueous solution;
- mixing the solution of gelatin with the aqueous dispersion of thermoplastic resin to form a conductive adhesive;
- and
- forming an layer of the conductive adhesive on the skin-side contact surface.
An electrode as claimed in 34, wherein the layer of conductive adhesive additionally comprises citric acid.
Dependencies are inferred from the claim text.