Electrode with disposable interface member

• US 4,633,879 A
• Filed: 11/16/1979
• Issued: 01/06/1987
• Est. Priority Date: 11/16/1979
• Status: Expired due to Term

• Current Assignee: LecTec Corporation
• Original Assignee: LecTec Corporation
• Inventors: Ong, Lincoln
• Primary Examiner(s): Cohen, Lee S.
• Application Number:
  US06/094,821
• Time in Patent Office: 2,608 Days
• Field of Search: 128/639-641, 128/644, 128/303.13, 128/983, 128/798, 128/802, 128/803, 604/20
• US Class Current: 600/391
• CPC Class Codes: A61B 5/259 using conductive adhesive means, e.g. gels

Abstract

An electrode for epidermical use for stimulation, iontophoresis, monitoring and grounding electrical contact applications to the skin may be provided having a self-adhesive, disposable, skin interface portion and a non-disposable backer portion, which is easily strippable from the skin interface portion; whereof the interface portion may be a cohesive and electrically conductive material having adhesive properties and the backer portion may be a durable, flexible and resilient material to which the interface portion may normally be adhered and through which an electrical connection may be made to the interface portion, the backer portion and interface portion being cleanly strippable from one another after use.

Claims

1. A partially reuseable medical electrode comprising:

adhesive electrical interfacing means for making an electrical connection to the skin surface during electrode use;

electrical connector means for making an electrical connection; and

non-conductive durable backer means for releasable adherence to the interlacing, said electrical connector means secured to and extending through said backer means for making an electrical connection between said secured electrical connector means and said electrical interfacing means when said electrical interfacing means is adhered to said backer means, said backer means fabricated of a tough, flexible, but resilient material being capable of repeated clean strippings of said electrical interfacing means from said backer means, and said backer means returning to original shape after each such stripping allowing reuse of said backer means, and allowing reuse of said electrical connector means secured to said backer means.

2. The electrode of claim 1 wherein said backer means is a sheet of non-conductive paper with a sheet plastic reinforcement bonded to one side thereof, said paper being on the outside away from said electrical interfacing means.

3. The electrode of claim 1 wherein said backer means is a sheet of plastic leaving minute depressions in the surface thereof engaging said electrical interfacing means.

4. The electrode of claim 3 wherein said backer means is reinforced with mesh therewithin.

5. The electrode of claim 4 wherein said plastic is nonconductive and covers said mesh to form a continuous sheet.

6. The electrode of claim 5 wherein said mesh thickness is greater than said plastic film thickness.

7. The electrode of claim 6 wherein said mesh thickness creates said minute depressions wherein said depressions are smooth shallow depressions in the surface of said backer means.

8. The electrode of claim 7 wherein said interfacing means flows into said shallow depressions in said backer means when pressed thereagainst facilitating said adhesion of said interfacing means to said backer means.