3m Innovative Properties Company

John P Tryphonopoulos

Cameron E Derry

A process for producing an eyelet for a biomedical electrode (e.g. an electrocardiogram (ECG) electrode) involves: hot pressing an electrically conductive thermoplastic or elastomeric resin to produce a film having a web of eyelets, each eyelet having a post protruding from a first face of the film and a flange at a second face of the film; applying a coating of a non-polarizable conductive material (e.g. a silver-containing material) on to a contact face of the flange; and, cutting the film to produce the eyelets separated from the web. Preferably, the process involves extrusion replication. A web of eyelets for biomedical electrodes has a film of an electrically conductive thermoplastic or elastomeric resin possessing a plurality of posts protruding from a first face of the film, and preferably a layer of a non-polarizable conductive material on a second face of the film. The process may be a one-step continuous process that is cheaper and simpler than current commercial processes.

Eyelet for biomedical electrode and process for production thereof

A process for producing a sensor for a biomedical electrode (e.g. an ECG electrode) involves injection molding an electrically conductive resin through a film of a backing material to form the sensor directly in the backing material and coating the contact face of the sensor with a non-polarizable conductive material (e.g. silver-containing material). Additional steps of applying an electrolyte over the non-polarizable conductive material coated on the contact face and applying a liner over the electrolyte results in the biomedical electrode. Biomedical electrode produced thereby have the sensor secured in a film of the backing material with a contact face of the sensor disposed on a first side of the film and a post of the sensor protruding from a second side of the film opposite the first side. The process permits production of one-piece sensors for bioelectrodes in a continuous fashion without the need for studs to retain sensors in a film of the backing material.

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London, Canada

John P Tryphonopoulos