Defibrillator electrode system

• US 5,466,244 A
• Filed: 05/18/1993
• Issued: 11/14/1995
• Est. Priority Date: 05/18/1993
• Status: Expired due to Term

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Heartstream, Inc. (HP Inc.)
• Inventors: Morgan, Carlton B.
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): Jastrzab, Jeffrey R.
• Application Number:
  US08/063,759
• Time in Patent Office: 910 Days
• Field of Search: 128/639-641, 607/5, 607/115, 607/142, 607/145, 607/148-150, 607/152, 607/36, 607/37
• US Class Current: 607/5
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/048 Electrodes characterised by a specific connection between lead and electrode
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence
• CPC Class Codes: A61N 1/3904 External heart defibrillators [EHD]

Abstract

A defibrillator electrode system. In the preferred embodiments, each electrode and the conductor leading to the instrument (such as the defibrillator or ECG monitor) is mounted on the same flexible substrate. In one two-electrode system embodiment, each electrode-conductor pair is mounted on a separate flexible substrate, and the two substrates are mounted in a retainer. In another preferred two-electrode system embodiment, the two electrode-conductor pairs are mounted on the same flexible substrate. In both embodiments, the retainer attaches to the instrument and provides the electrical connection between the conductors and the instrument. Conductive gel covers the electrodes in the preferred embodiments, and an adhesive surrounds the electrodes. The flexible substrate is provided with a release coating in appropriate spots. In their undeployed storage positions, the electrodes'"'"' conductive gel portions and adhesive portions lie against the release coating. During deployment, the conductive gel and adhesive peel away from the release coating. This arrangement minimizes the number of steps required in deploying defibrillator electrodes and preserves the integrity of the electrodes during storage.

Claims

1. A medical electrode system comprising:

a flexible substrate;

a conductor disposed on the substrate;

an electrode disposed on the substrate and electrically connected to the conductor;

the substrate comprising an adhesive area and a release area permanently attached to the substrate and adhered to the adhesive area,

the electrode being disposed against the release area.

2. The medical electrode system of claim 1 wherein the substrate is formed from a polymer.

3. The medical electrode system of claim 2 wherein the wherein the substrate is shaped substantially as a rectangle.

4. The medical electrode system of claim 2 wherein the conductor is formed from metal foil attached to the substrate.

5. The medical electrode system of claim 1 wherein the substrate has a first surface and a second surface, the adhesive area being disposed on the first surface of the substrate and the release area being disposed on the first surface of the substrate.

6. The medical electrode system of claim 1 wherein the substrate has a first surface and a second surface, the adhesive area being disposed on the first surface of the substrate and the release area being disposed on the second surface of the substrate.

7. The medical electrode system of claim 1 further comprising a second conductor disposed on the substrate and a second electrode disposed on the substrate and electrically connected to the second conductor.

8. The medical electrode system of claim 7 further comprising a retainer, the substrate being housed in the retainer when the electrodes are in an undeployed position, the adhesive area being disposed against the release area when the electrodes are in said undeployed position.

9. The medical electrode system of claim 8 further comprising a connector electrically connected to each conductor.

10. The medical electrode system of claim 9 wherein the retainer comprises a connector area in which the connectors are disposed.

11. The medical electrode system of claim 8 further comprising a protective cover enclosing the substrate when the electrodes are in an undeployed position.

12. The medical electrode system of claim 1 further comprising a retainer, the substrate being housed in the retainer when the electrode is in an undeployed position, the adhesive area being adhered to the release area when the electrode is in said undeployed position.

13. The medical electrode system of claim 12 further comprising a second flexible substrate;

a conductor disposed on the second substrate;

an electrode electrically connected to the conductor on the second substrate;

an adhesive area on the second substrate and a release area on the second substrate;

the second substrate being housed in the retainer when the electrode on the second substrate is in an undeployed position, the adhesive area on the second substrate being adhered to the release area on the second substrate when the electrode on the second substrate is in said undeployed position.

14. The medical electrode system of claim 13 further comprising a protective cover enclosing the substrates within the retainer when the electrodes are in an undeployed position.

17. The medical electrode system of claim 1 wherein the adhesive area is adjacent the electrode.

18. The medical electrode system of claim 1 wherein the adhesive area surrounds the electrode.

19. The medical electrode system of claim 1 wherein the electrode comprises conductive gel.

20. The medical electrode system of claim 1 further comprising a connector electrically connected to the conductor.

21. The medical electrode system of claim 1 further comprising a release coating on the release area.

15. The medical electrode system of claim 41 further comprising a connector electrically connected to the conductor of each substrate.

16. The medical electrode system of claim 15 wherein the retainer comprises a connector area in which the connectors from the first and second substrate are disposed.

22. A method of deploying a medical electrode comprising the following steps:

providing a substrate supporting an electrode;

the substrate having an adhesive area;

a conductor electrically connected to the electrode;

the electrode and the substrate adhesive area being disposed against a second area of the substrate; and

moving the electrode and the adhesive area away from the second area of the substrate.

23. The method of claim 22 wherein the moving step further comprises the step of extending the substrate from a first length to a second, longer length.

24. The method of claim 22 wherein the moving step comprises the step of moving the substrate from a wound position to an unwound position.

25. The method of claim 22 wherein the providing step further comprises the step of providing a retainer holding the electrode and the substrate in an undeployed position, the moving step comprising the step of moving the electrode and at least part of the substrate away from the retainer.

26. The method of claim 25 further comprising the step of electrically connecting the conductor to an instrument for sending electrical signals to, or receiving electrical signals from, the electrode.

27. The method of claim 26 wherein the retainer has a connector area electrically connected to the electrode through the conductor, the electrically connecting step comprising mating the connector area to a corresponding area on the instrument.

28. The method of claim 25 wherein the retainer has a protective cover, the method further comprising the step of removing the protective cover before the moving step.