US4311152A — Medical electrode and system for minimizing motio…

Claim 1

Independent Claim 174 words

An integral medical electrode and skin preparation device for improving the quality of biopotential event detection by minimizing motion artifact arising from skin potential, comprising: an electrically conductive member to which electrical connection to an external electrically responsive recorder can be made; skin abrading means in contact with the electrically conductive member, the skin abrading means establishing electrical contact between the skin of the patient and the electrically conductive member on application of the electrode to the skin; and holding means for holding the electrically conductive member out of direct contact with the skin of a patient when the electrode is applied, for holding the skin abrading means against the skin of the patient and preventing movement of the electrically conductive member and skin abrading means relative to the skin of the patient except on application of a sufficient amount of force to the electrically conductive member after application of the electrode to the skin to cause the skin abrading means to move relative to the skin sufficiently to penetrate the epidermal layer thereof.

Claim 2

Dependent Claim 174 words

An integral medical electrode and skin preparation device for improving the quality of biopotential event detection by minimizing motion artifact arising from skin potential, comprising: an electrically conductive member to which electrical connection to an external electrically responsive recorder can be made; skin abrading means in contact with the electrically conductive member, the skin abrading means establishing electrical contact between the skin of the patient and the electrically conductive member on application of the electrode to the skin; and holding means for holding the electrically conductive member out of direct contact with the skin of a patient when the electrode is applied, for holding the skin abrading means against the skin of the patient and preventing movement of the electrically conductive member and skin abrading means relative to the skin of the patient except on application of a sufficient amount of force to the electrically conductive member after application of the electrode to the skin to cause the skin abrading means to move relative to the skin sufficiently to penetrate the epidermal layer thereof.

Claim 3

Dependent Claim 26 words

The electrode and skin preparation device of claim 1 wherein the electrically conductive member is provided with a stud for connection to the electrically responsive recorder.

Claim 4

Dependent Claim 42 words

The electrode and skin preparation device of claim 2 wherein applicator means having a coupler is connected to the stud of the electrically conductive member through the coupler for rotating the conductive member and skin abrading means after application of the electrode.

Claim 5

Dependent Claim 167 words

An integral medical electrode and skin preparation device which allows preparation of the skin of a patient to reduce motion artifacts after application of the electrode to the skin of the patient, comprising: an electrically conductive member having a surface facing the skin when the electrode is adhered to the skin, holding means holding the electrically conductive member for rotation relative thereto, a flexible sheet member secured to the holding means having an adhesive coated on a surface thereof to be adhered to the skin of the patient, and an abrasive member loaded with an electrolyte gel in contact with the surface of the electrically conductive member and with the skin of the patient when the electrode is secured to the skin of the patient, the conductive member and the abrasive member rotatable relative to the skin, holding means and the sheet member adhering the electrode to the skin to abrade the portion of the skin in contact with the abrasive member sufficiently to minimize motion artifact.

Claim 6

Dependent Claim 167 words

An integral medical electrode and skin preparation device which allows preparation of the skin of a patient to reduce motion artifacts after application of the electrode to the skin of the patient, comprising: an electrically conductive member having a surface facing the skin when the electrode is adhered to the skin, holding means holding the electrically conductive member for rotation relative thereto, a flexible sheet member secured to the holding means having an adhesive coated on a surface thereof to be adhered to the skin of the patient, and an abrasive member loaded with an electrolyte gel in contact with the surface of the electrically conductive member and with the skin of the patient when the electrode is secured to the skin of the patient, the conductive member and the abrasive member rotatable relative to the skin, holding means and the sheet member adhering the electrode to the skin to abrade the portion of the skin in contact with the abrasive member sufficiently to minimize motion artifact.

Claim 7

Dependent Claim 25 words

The electrode and skin preparation device of claim 4 wherein the abrasive member is a resilient pad loaded with electrolyte gel and incorporating abrasive fibers.

Claim 8

Dependent Claim 77 words

The electrode and skin preparation device of claim 4 wherein the conductive member is circular and provided with a stud opposite the surface thereof contacting the abrasive member for connection to an electrically responsive recorder and wherein the holding means is a collar including an annular opening provided with a flexible wall holding the conductive member therein but allowing the conductive member to be rotated relative to the collar on application of a predetermined amount of torque.

Claim 9

Dependent Claim 34 words

The electrode and skin preparation device of claim 4 wherein the surface of the abrasive member contacting the skin of the patient is convex to concentrate abrasion of the patient's skin near the center.

Claim 10

Dependent Claim 209 words

An integral disposable pre-gelled medical electrode and skin preparation device which allows preparation of the skin of a patient to reduce motion artifacts after application of the electrode to the skin, comprising: an electrically conductive member having a surface facing the skin of the patient when the electrode is placed on the skin and an opposing stud for connection to an external electrically responsive monitor, an electrically non-conductive collar holding the conductive member, the collar including an annular opening provided with a flexible wall, the annular opening receiving the electrically conductive member therein and holding it against rotation relative to the collar except on application of a predetermined amount of torque, a flexible sheet member having an adhesive coating on a surface thereof provided with an annular opening therein receiving and adhesively bonding the collar therein, an abrasive member loaded with an electrolyte gel in contact with the surface of the electrically conductive member and contacting the skin of the patient when the electrode is secured to the patient, a removable protective cover over the adhesive coating on the sheet member during storage of the electrode, and a removable cover over the abrasive member during storage of the electrode, the cover having a raised portion overlying the abrasive member.

Claim 11

Dependent Claim 209 words

An integral disposable pre-gelled medical electrode and skin preparation device which allows preparation of the skin of a patient to reduce motion artifacts after application of the electrode to the skin, comprising: an electrically conductive member having a surface facing the skin of the patient when the electrode is placed on the skin and an opposing stud for connection to an external electrically responsive monitor, an electrically non-conductive collar holding the conductive member, the collar including an annular opening provided with a flexible wall, the annular opening receiving the electrically conductive member therein and holding it against rotation relative to the collar except on application of a predetermined amount of torque, a flexible sheet member having an adhesive coating on a surface thereof provided with an annular opening therein receiving and adhesively bonding the collar therein, an abrasive member loaded with an electrolyte gel in contact with the surface of the electrically conductive member and contacting the skin of the patient when the electrode is secured to the patient, a removable protective cover over the adhesive coating on the sheet member during storage of the electrode, and a removable cover over the abrasive member during storage of the electrode, the cover having a raised portion overlying the abrasive member.

Claim 12

Dependent Claim 58 words

The electrode and skin preparation device of claim 8 wherein the flexible wall of the collar includes vertical slots therein and wherein the portion of the electrically conductive member contacting the flexible wall includes vertical detents which lodge in the slots and prevent rotation of the electrically conductive member except on application of a predetermined amount of torque.

Claim 13

Dependent Claim 37 words

The electrode and skin preparation device of claim 9 wherein the flexible wall of the collar and portion of the electrically conductive member contacting the flexible wall include means securing the electrically conductive member in the collar.

Claim 14

Dependent Claim 20 words

The electrode and skin preparation device of claim 8 wherein the exterior surface of the stud has an octagonal configuration.

Claim 15

Dependent Claim 61 words

The electrode and skin preparation device of claim 8 wherein the flexible wall of the collar is notched at intervals around its circumference and wherein the outer periphery of the electrically conductive member includes detents which lodge in the notches of the collar so that the conductive member is held against movement except on application of a predetermined amount of torque.

Claim 16

Dependent Claim 208 words

A combination medical electrode and applicator gun which allows preparation of the skin of a patient to reduce motion artifact after application of the electrode to the skin of the patient, comprising: an electrically conductive member having a surface facing the skin when the electrode is adhered to the skin and a stud opposite the surface; holding means holding the electrically conductive member for rotation relative thereto; a flexible sheet member secured to the holding means having an adhesive coated on a surface thereof to be adhered to the skin of a patient; an abrasive member loaded with an electrolyte gel in contact with the surface of the electrically conductive member and with the skin of the patient when the electrode is secured to the skin of the patient, the conductive member and abrasive member rotatable relative to the skin, holding means and flexible sheet member adhering the electrode to the skin; and an applicator, including a coupler detachably connected to the stud of the conductive member, generating sufficient torque to rotate the conductive member and abrasive member relative to the skin of the patient, holding means and sheet member to abrade the portion of the skin in contact with the abrasive member sufficiently to minimize motion artifact.

Claim 17

Dependent Claim 208 words

A combination medical electrode and applicator gun which allows preparation of the skin of a patient to reduce motion artifact after application of the electrode to the skin of the patient, comprising: an electrically conductive member having a surface facing the skin when the electrode is adhered to the skin and a stud opposite the surface; holding means holding the electrically conductive member for rotation relative thereto; a flexible sheet member secured to the holding means having an adhesive coated on a surface thereof to be adhered to the skin of a patient; an abrasive member loaded with an electrolyte gel in contact with the surface of the electrically conductive member and with the skin of the patient when the electrode is secured to the skin of the patient, the conductive member and abrasive member rotatable relative to the skin, holding means and flexible sheet member adhering the electrode to the skin; and an applicator, including a coupler detachably connected to the stud of the conductive member, generating sufficient torque to rotate the conductive member and abrasive member relative to the skin of the patient, holding means and sheet member to abrade the portion of the skin in contact with the abrasive member sufficiently to minimize motion artifact.

Claim 18

Dependent Claim 41 words

The electrode and applicator gun of claim 13 wherein the applicator includes a rotatable shaft driven by a motor, the coupler mounted on one end of the shaft, and a rechargeable battery operatively connected to the motor for driving the motor.

Claim 19

Dependent Claim 27 words

The electrode and applicator gun of claim 4 including timing means operatively connected to the motor to control the time of rotation of the shaft and coupler.

Claim 20

Dependent Claim 35 words

The electrode and applicator gun of claim 13 wherein the flexible sheet member is a perforated elastic foam material which allows escape of perspiration of the patient after the electrode is adhered to the skin.

Claim 21

Dependent Claim 36 words

The electrode and applicator gun of claim 13 including a removable protection sheet covering the adhesive layer of the flexible sheet member during storage of the electrode and a removable protective cover over the abrasive member.

Claim 22

Dependent Claim 52 words

The electrode and applicator gun of claim 17 wherein a portion of the outer edge of the flexible sheet member is provided with a release tab which overlies the outer edge of the flexible sheet member so that the electrode may be removed from the protective sheet without touching the adhesive layer.

Claim 23

Dependent Claim 20 words

The electrode and applicator gun of claim 13 wherein the coupler of the applicator is biased in a forward direction.

Claim 24

Dependent Claim 32 words

The electrode and applicator gun of claim 13 wherein the exterior surface of the stud has an octagonal configuration and wherein the coupler drivingly engages the stud at angles varying from normal.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1985-01-18	1985-07-20	1986-01-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1989-01-18	1989-07-20	1990-01-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1993-01-18	1993-07-20	1994-01-19	$7700.00	Window Closed / Lapsed

Medical electrode and system for minimizing motion artifacts

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