# US 8,788,025 B2 · ECG electrode and electrode support

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- Number: US 8,788,025 B2
- Document ID: US8788025B2
- Status: Granted
- Kind: B2
- Application number: 13/970,539
- Filed: 2013-08-19
- Published: 2013-12-19
- Granted: 2014-07-22
- Earliest claimed: 2006-06-14
- Assignees: Physio-Control, Inc.
- Applicants: Physio-Control, Inc.
- Inventors: Olof Huldt
- Web page: https://patentgrep.com/patent/US8788025B2

## CPC

- A61B 5/282: Holders for multiple electrodes (for introduction into the body A61B5/287)
- A61B 5/251: Means for maintaining electrode contact with the body
- A61B 5/68: {Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient}
- A61H 31/004: {Heart stimulation}
- A61H 31/006: {Power driven}
- A61H 31/008: {Supine patient supports or bases, e.g. improving air-way access to the lungs}
- A61B 5/683: {Means for maintaining contact with the body (A61B5/6802 takes precedence)}
- A61B 2560/0412: Low-profile patch shaped housings
- A61H 2230/06: Heartbeat rate
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)

## Abstract

An electrically non-conductive back plate for supporting the back of a patient in a supine position comprises on its front face facing the back of the patient a pair or more of ECG electrodes capable of maintaining electrically conductive skin contact with the patient's back. The pair of ECG electrodes is disposed at a sharp angle with the mean heart vector, in particular so as to form an angle β of about 45°±25° with the projection S of the patient's spine on the back plate. Also disclosed is an ECG electrode for mounting in a recess of the back plate and an apparatus for treating cardiac arrest by compression of the sternum comprising the back plate.

## Claims

### Claim 1

A back plate for supporting the back of a patient in a supine position, the back plate for use in a system for treating cardiac arrest in a patient, the system including an apparatus for compressing the patient's sternum against the back plate when the patient is in the supine position, the back plate comprising:
at least one ECG electrode that is structured to maintain contact with the patient's back when the patient is in the supine position;
a front face positioned to face the back of the patient when the patient is in the supine position; and
at least one recess in the front face, the at least one recess structured to receive the at least one ECG electrode and structured to permit the at least one ECG electrode to be displaced in a first direction.

### Claim 2 (depends on 1)

The back plate of claim 1, wherein the first direction is toward and away from the patient's back.

### Claim 3 (depends on 1)

The back plate of claim 1, wherein the first direction is lateral movement within the at least one recess.

### Claim 4 (depends on 1)

The back plate of claim 1, wherein the at least one recess is structured to permit the at least one ECG electrode to be displaced in a second direction.

### Claim 5 (depends on 4)

The back plate of claim 4, wherein the first direction is toward and away from the patient's back and the second direction is lateral movement within the at least one recess.

### Claim 6 (depends on 1)

The back plate of claim 1, wherein the back plate has two recesses in the front face, each of the two recesses being structured to receive the at least one ECG electrode.

### Claim 7 (depends on 1)

The back plate of claim 1, wherein the front face has a plurality of recesses, at least a portion of the plurality of recesses being located adjacent to each other.

### Claim 8 (depends on 7)

The back plate of claim 7, wherein the portion of the plurality of recesses located adjacent to each other includes some recesses located adjacent each other along at least one direction.

### Claim 9 (depends on 7)

The back plate of claim 7, wherein the portion of the plurality of recesses located adjacent to each other includes some recesses located adjacent each other along two directions.

### Claim 10 (depends on 1)

The back plate of claim 1, further comprising a spring located within the at least one recess, the spring structured to bias the at least one ECG electrode toward the patient.

### Claim 11 (depends on 10)

The back plate of claim 10, wherein the at least one ECG electrode is structured to be fully compressed within the at least one recess against a resilient force of the spring.

### Claim 12 (depends on 11)

The back plate of claim 11, wherein when the at least one ECG electrode is in a non-load bearing state, the at least one ECG electrode extends beyond the first recess by a distance.

### Claim 13 (depends on 1)

The back plate of claim 1, further comprising a manifold electrically connected with the at least one ECG electrode, wherein the manifold is connected to an ECG monitoring unit.

### Claim 14 (depends on 13)

The back plate of claim 13, wherein the manifold is wirelessly connected to the ECG monitoring unit.

### Claim 15 (depends on 13)

The back plate of claim 13, wherein the manifold is physically connected to the ECG monitoring unit.

### Claim 16 (depends on 13)

The back plate of claim 13, wherein the system for treating cardiac arrest includes the manifold.