Medical electrode with conductive release liner

• US 6,115,638 A
• Filed: 09/14/1998
• Issued: 09/05/2000
• Est. Priority Date: 05/04/1998
• Status: Expired due to Term

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: SurVivaLink Corporation (Cardica Incorporated)
• Inventors: Groenke, Allen W.
• Primary Examiner(s): Layno, Carl H.
• Application Number:
  US09/152,565
• Time in Patent Office: 722 Days
• Field of Search: 607/142, 607/152, 600/391-393
• US Class Current: 607/142
• CPC Class Codes: A61B 5/259 using conductive adhesive means, e.g. gels
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence

Abstract

An electrode system includes a release liner separating a pair of electrodes. The release liner includes a first portion having electrically conductive and non-stick characteristics and a second portion having electrically non-conductive and non-stick characteristics. An electrically conductive portion of the electrode is disposed over the first portion while an adhesive only, electrically non-conductive portion of the electrode is disposed over the second portion. The release liner includes a pair of electrically non-conductive sheets and an electrically conductive sheet interposed between the non-conductive sheets. The non-conductive sheets include an aperture to expose a portion of the conductive sheet for providing electrical conductivity between the pair of electrodes.

Claims

1. An electrode release liner comprising:

a pair of electrically non-conductive sheets;

an electrically conductive sheet interposed between the non-conductive sheets, each nonconductive sheet having an opening exposing a portion of the electrically conductive sheet.

2. The liner of claim 1 wherein the conductive sheet has at least one aperture in the exposed portion.

3. The liner of claim 1 wherein conductive sheet and nonconductive sheets have thermally welded joints.

4. The liner of claim 3, wherein the joints extend along opposite edges of the liner.

5. The liner of claim 3, wherein the conductive sheet includes at least one aperture defined along each side edge of the conductive sheet and a portion of each of the non-conductive sheets extends over the side edge aperture, and the non-conductive sheets are secured together within the side edge aperture of the conductive sheet.

6. The liner of claim 5, wherein the conductive sheets are secured together in a thermally welded joint within the side edge aperture.

7. The release liner of claim 1 wherein each non-conductive sheet has a non-stick side and an adhesive side with the adhesive side bonded adhesively to the conductive sheet.

8. The release liner of claim 1 wherein the non-conductive sheet is made from at least one of a polyester film, a polyethylene film, and a polypropylene film.

9. The release liner of claim 8, wherein the non-conductive sheet includes at least one of a fluropolymer component and a silicone component.

10. The release liner of claim 1 wherein the conductive sheet is made from at least one of a polyethylene film, and a conductive metal foil.

11. The release liner of claim 10, wherein the metal is nickel.

12. The release liner of claim 1 wherein the non-conductive sheets are transparent.

13. The release liner of claim 10, wherein the non-conductive sheets and the conductive sheet have a non-stick surface.

14. The release liner of claim 13, wherein the non-stick surface of the non-conductive sheets have a greater releasability characteristic than the non-stick surface of the conductive sheet.

15. An electrode system comprising:

a pair of electrode pads disposed on opposite sides of a release liner, the release liner comprising;

first means for providing electrical conductivity between the electrode pads and releasable attachment of the electrode pads relative to the liner; and

second means for facilitating electrically nonconductive releasable attachment of the electrode pads relative to the liner.

16. The system of claim 15, wherein the first means includes a lesser degree of releasability than the second means.

17. An electrode system comprising:

a pair of electrode pads disposed on opposite sides of a release liner, the release liner comprising;

a first portion being electrical conductive and permitting releasable attachment of the electrode pads relative to the liner; and

a second portion being electrically nonconductive and permitting releasable attachment of the electrode pads relative to the liner.

18. The system of claim 17, wherein the second portion permits a greater degree of releasability than the first portion.

19. An electrode release liner including:

a pair of non-stick, electrically non-conductive sheets, each having an aperture formed therein; and

an electrically conductive sheet interposed between the pair of non-conductive sheets and being exposed through the aperture of the nonconductive sheets, and having a first plurality of holes in the exposed portion, wherein the non-conductive sheets are secured together only along opposed side edges of the conductive sheet.

20. An electrode release liner including:

a pair of electrically non-conductive sheets, each having a plurality of apertures formed therein, each non-conductive sheet having a non-stick side and an adhesive side; and

an aperture-less electrically conductive sheet interposed between the pair of non-conductive sheets and being exposed through the aperture of the non-conductive sheets;

wherein the adhesive side of each the non-conductive sheets is secured to the conductive sheet.

21. An electrode package system comprising:

a releasable liner including;

a pair of non-stick, electrically non-conductive sheets, each having an aperture formed therein;

an electrically conductive sheet interposed between the pair of non-conductive sheets and being exposed through the aperture of the nonconductive sheets;

a pair of electrically active electrode pads having a releasably adhering surface with a nonconductive portion and a conductive portion, each electrode pad disposed on opposite sides of the release liner with the conductive portion in electrical contact with the exposed conductive sheet portion of the release liner.

22. The electrode package system of claim 21, wherein the conductive sheet further includes at least one aperture in the exposed portion.

23. The electrode package system of claim 21, wherein the aperture of the non-conductive sheet includes more than one aperture portions.

24. The electrode package system of claim 23, wherein the aperture portions have elongate shapes and extend generally parallel to one another relative to a first axis, thereby further defining a plurality of non-stick, non-conductive portions of the non-stick, non-conductive sheets extending between the elongate aperture portions and being generally parallel to each other and the elongate aperture portions.

25. The system of claim 23, wherein the aperture portions together generally define a rectangular shape.

26. The system of claim 23, wherein each aperture portion generally defines a triangular shape.

27. The system of claim 26, wherein an elongate non-stick, non-conductive portion of the non-stick, non-conductive sheet extends between each of the triangular shaped portions.

28. The system of claim 23, wherein the aperture portions together generally define a circular shape.

29. The system of claim 21, wherein the non-stick, non-conductive sheet is transparent.