US5366497A — Non-invasive, radiolucent cardiac electrode

Claim 1

Independent Claim 166 words

A non-invasive radiolucent electrode comprising: an adhesive conductive polymer pad having a first surface adapted for contacting a patient's skin, and having a second surface; a stainless steel wire mesh backing to said pad configured to have between about 15 to 50 wires/inch and having wires with a diameter of between about 5 to 10 mils, the mesh having a front surface substantially covering the second surface of the pad, and having a back surface; a plastic foam cover adapted to contact the back surface of the wire mesh backing and having a hole exposing at least a part of the wire mesh backing; an insulated wire having a first exposed end which is adapted for insertion into the hole in the plastic foam cover, and electrically coupling to the exposed part of the wire mesh backing; and a wire retainer adapted to be placed over the hole in the plastic foam cover after the wire has been inserted, and adhered to the plastic foam cover.

Claim 2

Dependent Claim 166 words

A non-invasive radiolucent electrode comprising: an adhesive conductive polymer pad having a first surface adapted for contacting a patient's skin, and having a second surface; a stainless steel wire mesh backing to said pad configured to have between about 15 to 50 wires/inch and having wires with a diameter of between about 5 to 10 mils, the mesh having a front surface substantially covering the second surface of the pad, and having a back surface; a plastic foam cover adapted to contact the back surface of the wire mesh backing and having a hole exposing at least a part of the wire mesh backing; an insulated wire having a first exposed end which is adapted for insertion into the hole in the plastic foam cover, and electrically coupling to the exposed part of the wire mesh backing; and a wire retainer adapted to be placed over the hole in the plastic foam cover after the wire has been inserted, and adhered to the plastic foam cover.

Claim 3

Dependent Claim 68 words

A non-invasive radiolucent electrode comprising: at least one pad having a first surface adapted to be placed in contact with a patient's skin, and having a second surface; a conductive backing for the pad configured to be radiolucent and capable of conducting energy sufficient for defibrillation, and to substantially cover the second surface of the pad; and means for coupling said conductive backing to a source of energy.

Claim 4

Dependent Claim 68 words

A non-invasive radiolucent electrode comprising: at least one pad having a first surface adapted to be placed in contact with a patient's skin, and having a second surface; a conductive backing for the pad configured to be radiolucent and capable of conducting energy sufficient for defibrillation, and to substantially cover the second surface of the pad; and means for coupling said conductive backing to a source of energy.

Claim 5

Dependent Claim 20 words

The electrode of claim 2 wherein said backing is configured to be a wire backing having between about 15-50 wires/inch.

Claim 6

Dependent Claim 20 words

The electrode of claim 2 wherein said backing is configured to be a wire backing having between about 20-40 wires/inch.

Claim 7

Dependent Claim 13 words

The electrode of claim 2 wherein said backing is made of stainless steel.

Claim 8

Dependent Claim 20 words

The electrode of claim 2 wherein said backing is comprised of wires having a diameter of between about 5-10 mils.

Claim 9

Dependent Claim 20 words

The electrode of claim 2 wherein said backing is comprised of wires having a diameter less than about 9 mils.

Claim 10

Dependent Claim 20 words

The electrode of claim 2 wherein said backing has a percentage of open space which is greater than about 50%.

Claim 11

Dependent Claim 15 words

The electrode of claim 2 wherein said backing is embedded in a low-impedance conductive rubber.

Claim 12

Dependent Claim 19 words

The electrode of claim 2 wherein said backing has an outside edge which is covered by a mylar ring.

Claim 13

Dependent Claim 21 words

The electrode of claim 2 wherein the first surface of said pad has an area greater than about 25 sq. cm.

Claim 14

Dependent Claim 21 words

The electrode of claim 2 wherein said electrical coupling means is adapted to electrically couple said mesh backing to a defibrillator.

Claim 15

Dependent Claim 22 words

The electrode of claim 2 wherein said electrical coupling means is adapted to electrically couple said mesh backing to external pacing means.

Claim 16

Dependent Claim 22 words

The electrode of claim 2 wherein said electrical coupling means is adapted to electrically couple said mesh backing to an ECG monitor.

Claim 17

Dependent Claim 14 words

The electrode of claim 2 wherein said pad is made of a conductive polymer.

Claim 18

Dependent Claim 12 words

The electrode of claim 2 wherein said pad is made of hydrogel.

Claim 19

Dependent Claim 91 words

A cardiac system comprising: at least a pair of electrodes wherein at least a first one of said electrodes is non-invasive, and wherein said first electrode comprises at least one pad having a first surface adapted to be placed in contact with a patient's skin, nd having a second surface, said electrode further comprising a conductive backing configured to be radiolucent and capable of conducting energy sufficient for defibrillation, and substantially cover said second surface of said pad; a source of energy; and means for coupling said source to said backing.

Claim 20

Dependent Claim 91 words

A cardiac system comprising: at least a pair of electrodes wherein at least a first one of said electrodes is non-invasive, and wherein said first electrode comprises at least one pad having a first surface adapted to be placed in contact with a patient's skin, nd having a second surface, said electrode further comprising a conductive backing configured to be radiolucent and capable of conducting energy sufficient for defibrillation, and substantially cover said second surface of said pad; a source of energy; and means for coupling said source to said backing.

Claim 21

Dependent Claim 26 words

The cardiac system of claim 17 wherein said source of energy comprises external pacing means for generating first electrical impulses adapted to pace the patient's heart.

Claim 22

Dependent Claim 25 words

The cardiac system of claim 17 wherein said source of energy comprises a defibrillator for generating second electrical impulses adapted to defibrillate the patient's heart.

Claim 23

Dependent Claim 51 words

The cardiac system of claim 19 wherein said defibrillator includes depressible defibrillator paddles adapted to externally deliver said second electrical impulses when the paddles are depressed and said coupling means includes a shock plate configured with paddle wells which are adapted so that said defibrillator paddles fit snugly into said wells.

Claim 24

Dependent Claim 49 words

The cardiac system of claim 19 wherein said coupling means further comprises: a connector adapted to electrically couple said mesh backing to said defibrillator by bypassing any defibrillator paddles included in said defibrillator; and means for causing said defibrillator to externally deliver said second electrical impulses under operator control.

Claim 25

Dependent Claim 35 words

The cardiac system of claim 17 further comprising ECG monitoring means for receiving electrical impulses from the patient's heart, and said coupling means is further adapted to electrically couple said monitoring means to said backing.

Claim 26

Dependent Claim 64 words

The cardiac system of claim 17 wherein said source comprises: external pacing means for producing first electrical impulses adapted to pace the patient's heart; and a defibrillator for producing second electrical impulses adapted to defibrillate the patient's heart; wherein said coupling means further comprises means for delivering a selected one of said first and said second electrical impulses to said backing under operator control.

Claim 27

Dependent Claim 36 words

The cardiac system of claim 23 further comprising ECG monitoring means for receiving electrical impulses from the patient's heart, wherein said electrical coupling means is further adapted to couple said monitoring means to said mesh backing.

Claim 28

Dependent Claim 109 words

A process for stimulating a patient's heart utilizing a non-invasive radiolucent electrode comprising the steps of: configured the electrode to have at least one pad; contacting the patient's skin with a first surface of said at least one electrode pad, said at least one pad also having a second surface; substantially covering the second surface of the at least one pad with a conductive backing configured to be radiolucent and capable of conducting defibrillating energy; delivering energy to the backing of the at least one pad; and imaging any of the patient's internal organs while said first surface of said at least one pad is contacting the patient's skin.

Claim 29

Dependent Claim 109 words

A process for stimulating a patient's heart utilizing a non-invasive radiolucent electrode comprising the steps of: configured the electrode to have at least one pad; contacting the patient's skin with a first surface of said at least one electrode pad, said at least one pad also having a second surface; substantially covering the second surface of the at least one pad with a conductive backing configured to be radiolucent and capable of conducting defibrillating energy; delivering energy to the backing of the at least one pad; and imaging any of the patient's internal organs while said first surface of said at least one pad is contacting the patient's skin.

Claim 30

Dependent Claim 28 words

The process of claim 25 wherein said delivering step comprises delivering electrical impulses adapted to defibrillate the patient's heart to the backing of the at least one pad.

Claim 31

Dependent Claim 28 words

The process of claim 25 wherein said delivering step comprises delivering electrical impulses adapted to pace the patient's heart to the backing of the at least one pad.

Claim 32

Dependent Claim 23 words

The processes of claim 25 further comprising receiving electrical impulses from the patient's heart through said mesh backing for use in ECG monitoring.

Claim 33

Dependent Claim 23 words

The process of claim 25 further comprising the step of configuring said backing to be a wire backing having between about 15-50 wires/inch.

Claim 34

Dependent Claim 23 words

The process of claim 25 further comprising the step of configuring said backing to be a wire backing having between about 20-40 wires/inch.

Claim 35

Dependent Claim 19 words

The process of claim 25 further comprising the step of configuring said backing to be made of stainless steel.

Claim 36

Dependent Claim 27 words

The process of claim 25 further comprising the step of configuring said backing to a wire backing comprising wires having a diameter of between about 5-10 mils.

Claim 37

Dependent Claim 29 words

The process of claim 25 further comprising the step of configuring said backing to comprise a wire backing comprising wires having a diameter of less than about 9 mils.

Claim 38

Dependent Claim 25 words

The process of claim 25 further comprising the step of configuring said backing to have a percentage of open space of greater than about 50%.

Claim 39

Dependent Claim 18 words

The process of claim 25 further comprising the step of embedding the backing in a low-impedance conductive rubber.

Claim 40

Dependent Claim 22 words

The process of claim 25, wherein said backing has an outside edge, further comprising covering the outside edge with a mylar ring.

Claim 41

Dependent Claim 24 words

The process of claim 25 further comprising configuring the first surface of said pad to have an area greater than about 25 sq. cm.

Claim 42

Dependent Claim 64 words

A process comprising the steps of: providing a non-invasive radiolucent electrode capable of conducting defibrillating energy and having at least one pad; contacting a patient's skin with a surface of said pad; delivering electrical impulses, determined appropriate to defibrillate the patient's heart, to said patient through said pad; and imaging any of the patient's internal organs while said pad is contacting the patient's skin.

Claim 43

Dependent Claim 64 words

A process comprising the steps of: providing a non-invasive radiolucent electrode capable of conducting defibrillating energy and having at least one pad; contacting a patient's skin with a surface of said pad; delivering electrical impulses, determined appropriate to defibrillate the patient's heart, to said patient through said pad; and imaging any of the patient's internal organs while said pad is contacting the patient's skin.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-11-21	1998-05-23	1998-11-22	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-11-21	2002-05-23	2002-11-22	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-11-21	2006-05-23	2006-11-22	$7700.00	Window Closed / Lapsed

Non-invasive, radiolucent cardiac electrode

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