Perforated size adjustable biomedical electrode

Abstract

A perforated biomedical electrode having a detachable portion which allows a clinician to remove a portion of the electrode to thereby reduce the effective contact size of the electrode, e.g., the effective surface area for adhering the electrode to the patient's skin and/or the effective surface area for establishing electrical contact or ground with the patient's skin depending on the particular application, e.g., for use on an adult or a child. The biomedical electrode includes a pad comprising a first portion and a predefined line of separation along which a second portion of the pad is detachable from the pad so that the pad initially comprises a first surface area for contacting a patient's skin and upon detaching the second portion from the pad, the pad comprises a second surface area for contacting the patient's skin. An electrode attaches to the first portion of the pad. Desirably, a series of slits peripherally extends around the first portion and through the pad to define the predefined line of separation. A layer of adhesive may be applied on the first surface area and a protective cover sheet may be provided for protecting the layer of adhesive. The perforated biomedical electrode may also include a top non-electrically conductive foam layer, an electrically conductive metal foil layer, and a layer of electrically conductive adhesive.