SKIN SCREW ELECTRODES
First Claim
1. An electrode system for attaching an electrode to skin of a patient, comprising:
- an electrode having an electrode body comprising an electrode face that is adapted to be pressed against the skin of the patient, wherein said electrode face includes a plurality of teeth, wherein each of said plurality of teeth includes a shaft that initially extends roughly perpendicularly from said electrode face and then turns to run roughly parallel to said electrode face to a depth that is less than a depth of stratum corneum of said patient.
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Accused Products
Abstract
Electrodes providing excellent recording and physical stability. Electrodes are disclosed that may include a plurality of small teeth that possess a novel design shape and orientation. The shallow and relatively long teeth run parallel to the rim of the electrode that presses against the patient'"'"'s skin. When the electrode is twisted onto skin, the tiny teeth penetrate the stratum corneum and move nearly horizontally under the stratum corneum, thus anchoring the electrode securely to the skin. The electrodes cause minimal discomfort to the patient since the small teeth do not extend to the pain fibers which are located in deeper layers of the skin. The electrodes may be fabricated in a variety of geometries including cylindrical, disk, and blunt bullet or top shapes. In some instances, the electrodes may be connected to detachable leads having magnetic properties.
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Citations
24 Claims
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1. An electrode system for attaching an electrode to skin of a patient, comprising:
an electrode having an electrode body comprising an electrode face that is adapted to be pressed against the skin of the patient, wherein said electrode face includes a plurality of teeth, wherein each of said plurality of teeth includes a shaft that initially extends roughly perpendicularly from said electrode face and then turns to run roughly parallel to said electrode face to a depth that is less than a depth of stratum corneum of said patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of fabricating an electrode comprising the steps of:
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applying an etchant-resistant chemical to the surface of a sheet of material in a pattern, said pattern including a plurality of teeth on a side of said pattern, wherein each tooth includes a shaft that initially extends roughly perpendicular from said electrode face and then turns to run roughly parallel to said electrode face to a depth that is less than a depth of stratum corneum of a patient; etching said metal with an etchant solution; forming said electrode from said non-etched material, wherein said electrode has an electrode face that is adapted to be pressed against the skin of the patient, wherein said electrode face includes said plurality of teeth. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification