Dry physiological recording electrode
First Claim
1. A dry physiological recording electrode comprising a substrate having an upper a lower surface, and at least one penetrator(s) formed from a conductive coating and protruding from the upper surface of the substratewherein the penetrator(s) has an aspect ratio less than about 1.5, is capable of piercing the stratum corneum or outer lay of the skin, and transmitting an electric potential from the lower layers of epidermis through the penetrator(s) which can be measured.
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Accused Products
Abstract
The present invention relates to a dry physiological recording electrode that can be used without skin preparation or the use of electrolytic gels. The dry physiological recording electrode comprising a substrate having an upper and a lower surface, and at least one penetrator(s) protruding from the upper surface of the substrate. The penetrator(s) is capable of piercing through the stratum corneum or outer layer of the skin, and transmitting an electric potential from the lower layers of the epidermis through the penetrator(s) which can be measured, or detecting agents from the lower layers of the epidmermis primarily the stratum germinativum layer. At least one epidermis stop may be provided resulting in the formation of detritus troughs interposed between adjacent penetrator(s) and epidermis stops. The present invention also includes a method of sensing biopotentials in the skin.
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Citations
21 Claims
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1. A dry physiological recording electrode comprising a substrate having an upper a lower surface, and at least one penetrator(s) formed from a conductive coating and protruding from the upper surface of the substrate
wherein the penetrator(s) has an aspect ratio less than about 1.5, is capable of piercing the stratum corneum or outer lay of the skin, and transmitting an electric potential from the lower layers of epidermis through the penetrator(s) which can be measured.
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8. A dry physiological recording electrode comprising a thin metal sheet having an upper and a lower edge, and at least one penetrator(s) protruding from the upper edge of the thin metallic sheet
wherein the penetrator(s) from the thin metal sheet is capable of piercing through the stratum corneum or outer layer or of the skin and transmitting an electric potential from the lower layers of the epidermis through the penetrator(s) which can be measured.
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16. A dry physiological recording electrode comprising a silicon substrate having an upper and a lower surface, and at least one penetrator(s) protruding from the upper surface of the silicon substrate
wherein the penetrator(s) has an aspect ratio less than about 1.5, is capable of piercing through the stratum corneum or outer layer of the epidermis and transmitting an electric potential from the lower layers of the epidermis through the penetrator(s) which can be measured.
Specification