Biomedical electrode
First Claim
Patent Images
1. A BODY ELECTRODE COMPRISING IN COMBINATION:
- A. A BASE MEMBER MADE OF A SINGLE PIECE OF A FLEXIBLE, SOFT PLASTIC HAVING A THIN FLEXIBLE RIM PORTION OF RIGID CENTER FLAT BOTTOMED CUP-LIKE MEMBER DEFINED BY HEAVY SIDEWALLS AND A HEAVY TOP, B. A SNAP COMPRISING A RELATIVELY THIN FLAT DISC OF CONDUTIVE MATERIAL LYING ON THE FLAT BOTTOM OF THE DUP-LIKE MMEMBER, AND HAVING A TERMINAL EXTENDING THROUGH THE FACE OF THE CUP-LIKE MMEMBER, C. A THIN SHEET POROUS NON-CONDUCTIVE MATERIAL OF SUBSTANTIALLY THE SAME SIZE AS THE FLAT BOTTOM OF THE CUP-LIKE MEMBER, AND HAVING ONE SURFACE IN CONTACT WITH SAID DISC, D. A THICK DISC OF POROUS FOAM-LIKE MATERIAL IN CONTACT WITH SAID POROUS NONCONDUCTIVE MATERIAL AND FILLING THE REMAINDER OF THE CAVITY OF THE CUP-LIKE MEMBER AND EXTENDING A SUBSTANTIAL DISTANCE BEYOND THE OPEN END OF THE CUP-LIKE MEMBER, SAID FOAM-LIKE MATERIAL BEING SATURATED WITH AN ELECTRICALLY CONDUCTIVE MATERIAL, AND E. MEANS FOR ATTACHING SAID CUP TO A HYMAN BODY BY THE OUTER THIN WIDE RIM WHEREBY SAID FOAMM-LIKE MATERIAL IS BROUGH INTO COMPRESSION WITHIN THE CUP-LIKE MEMBER BY PRESSURE FROM THE BODY.
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Abstract
A biomedical electrode or sensor is provided having a cup-like soft plastic base member with a solid conductive snap member therein and with a compressible sponge-like material holding a conductive paste between the solid conductive member and the body of the wearer. The device of the present invention is suitable for use as a sensor wherein it is desired to measure an electrical potential developed by the body as well as useful wherein potentials are applied to the body as in a cardiac pacemaker. The electrode was particularly designed for use with a cardiac monitor device.
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Citations
8 Claims
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1. A BODY ELECTRODE COMPRISING IN COMBINATION:
- A. A BASE MEMBER MADE OF A SINGLE PIECE OF A FLEXIBLE, SOFT PLASTIC HAVING A THIN FLEXIBLE RIM PORTION OF RIGID CENTER FLAT BOTTOMED CUP-LIKE MEMBER DEFINED BY HEAVY SIDEWALLS AND A HEAVY TOP, B. A SNAP COMPRISING A RELATIVELY THIN FLAT DISC OF CONDUTIVE MATERIAL LYING ON THE FLAT BOTTOM OF THE DUP-LIKE MMEMBER, AND HAVING A TERMINAL EXTENDING THROUGH THE FACE OF THE CUP-LIKE MMEMBER, C. A THIN SHEET POROUS NON-CONDUCTIVE MATERIAL OF SUBSTANTIALLY THE SAME SIZE AS THE FLAT BOTTOM OF THE CUP-LIKE MEMBER, AND HAVING ONE SURFACE IN CONTACT WITH SAID DISC, D. A THICK DISC OF POROUS FOAM-LIKE MATERIAL IN CONTACT WITH SAID POROUS NONCONDUCTIVE MATERIAL AND FILLING THE REMAINDER OF THE CAVITY OF THE CUP-LIKE MEMBER AND EXTENDING A SUBSTANTIAL DISTANCE BEYOND THE OPEN END OF THE CUP-LIKE MEMBER, SAID FOAM-LIKE MATERIAL BEING SATURATED WITH AN ELECTRICALLY CONDUCTIVE MATERIAL, AND E. MEANS FOR ATTACHING SAID CUP TO A HYMAN BODY BY THE OUTER THIN WIDE RIM WHEREBY SAID FOAMM-LIKE MATERIAL IS BROUGH INTO COMPRESSION WITHIN THE CUP-LIKE MEMBER BY PRESSURE FROM THE BODY.
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2. The structure of claim 1 wherein the outer surface of said cup-like member is formed at an angle to provide a ramp to resist lateral forces.
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3. The structure of claim 1 wherein said rim is provided with a double sided adhesive on its outer surface surrounding the opening of the cup for attachment of the electrode to the body.
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4. The structure of claim 1 wherein the inner surface of said cup is provided with a plurality of bosses, said snap being retained between the bosses and the flat bottom of the cup-like member.
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5. The structure of claim 1 wherein the snap terminal is a center post extending through the base, said center post terminating in a bifurcated bulbous member.
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6. The structure of claim 1 wherein said snap has a sharp edge at the perimeter of said disc for retaining itself within the base and acting as a seal.
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7. The structure of claim 1 wherein the thin sheet of porous nonconductive material is a sheet of paper.
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8. The structure of claim 7 wherein the porous paper consists of a sheet of blotting paper and the foam-like material consists of a disc of polyurethane foam.
Specification