Circuit detectable packaged medical electrodes

• US 5,817,151 A
• Filed: 06/04/1996
• Issued: 10/06/1998
• Est. Priority Date: 06/04/1996
• Status: Expired due to Term

• Current Assignee: Zoll Medical Corporation (Asahi Kasei Corporation)
• Original Assignee: SurVivaLink Corporation (Cardica Incorporated)
• Inventors: Stolte, John F., Olson, Kenneth F., Stendahl, Gary B., Utke, Nora J.
• Primary Examiner(s): Lateef, Marvin M.
• Assistant Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US08/658,200
• Time in Patent Office: 854 Days
• Field of Search: 607/5, 607/115, 607/142, 607/148, 607/152, 128/639, 206/363, 206/438
• US Class Current: 607/142
• CPC Class Codes: A61N 1/046 Specially adapted for shock therapy, e.g. defibrillation
• CPC Class Codes: A61N 1/3931 Protecting, e.g. back-up systems

Abstract

A circuit detectable arrangement of electrodes and a package thereof are provided so that the presence of a fresh package of electrodes can be detected by a device and can be distinguished from electrodes that have been used or tampered with. A first electrode is disposed on an electrically non-conductive liner, a second electrode is disposed on an electrically non-conductive liner, and an electrical connector is provided between the first and second electrodes for electrically completing a circuit connecting the lead wire of the first electrode to the lead wire of the second electrode. An electrode package is also provided including the first and second electrodes therein. Within the package, the first and second electrodes are provided adjacent to one another with their backing layers generally parallel to one another and with a loop formed in the electrical connector. The loop extends across the tear line and into the interior portion of the package so that by opening the package along the tear line, the electrical connector can be broken. The electrical connector may also include a strip of tear resistant material which is positioned within the interior portion of the package. Opening of the package can be facilitated by extending the strip of tear resistant material or a portion of the electrical connector through an opening of the package to provide a gripping means. Alternatively, at least one of the lead wires can be threaded within the package through the loop and within the interior portion so as to pass through the material of the package from said interior portion and provide an easy opening feature.

Claims

1. A plurality of medical electrodes, each electrode comprising an electrically nonconductive backing layer, a patient engaging electrically conductive adhesive layer disposed on said backing layer, said backing layer having a lead wire extending therefrom, the lead wire being in electrical contact with said patient engaging electrically conductive adhesive layer, wherein a first electrode is disposed on a first electrically nonconductive liner, a second electrode is disposed on a second electrically nonconductive liner, and wherein a conductor portion connected between said first and second electrodes adjacent the backing layers for electrically completing a circuit connecting the lead wire of said first electrode to the lead wire of said second electrode.

2. The electrodes of claim 1, wherein said first electrode is provided on a separate liner than the liner of said second electrode.

3. The electrodes of claim 1, wherein the lead wire of each electrode extends partially within the electrode between the backing layer and the conductive adhesive, and a terminal is provided to electrically connect the lead wire within the electrode to the conductive adhesive layer disposed on the backing layer.

4. The electrodes of claim 3, wherein said conductor portion comprises a strip of flexible and electrically conductive material.

5. The electrodes of claim 4, further comprising a nonconductive tear resistant strip connected to said conductor portion.

6. The electrodes of claim 1 wherein the first and second liners have a plurality of holes formed therein.

7. A packaged plurality of medical electrodes, comprising:

a pouch defined by a flexible material and having an interior cavity; and

a first medical electrode and a second medical electrode disposed within an electrode receiving space of said interior cavity, each electrode comprising an electrically nonconductive flexible backing layer, a patient engaging electrically conductive adhesive layer disposed on said flexible backing layer, said backing layer having a lead wire extending therefrom, the lead wire being in electrical contact with said patient engaging electrically conductive adhesive layer, wherein said first and second electrodes are each disposed on an electrically nonconductive liner, and wherein a conductor portion is connected between said first and second electrodes adjacent the backing layers for electrically completing a circuit connecting the lead wire of said first electrode to the lead wire of said second electrode.

8. The package of claim 7, wherein the lead wires from said first and second electrodes extend through an opening provided through said package to the outside of said package.

9. The package of claim 8, further including a tear line along which the package is to be opened and which divides the interior cavity of the package into said electrode receiving space and an interior portion.

10. The package of claim 9, wherein said conductor portion comprises a flexible conductive strip, and said first and second electrodes are provided adjacent to one another in said package with their backing layers generally parallel to one another and with a loop formed in the conductor portion, said loop extending across said tear line and into said interior portion of said package from said electrodes within said electrode receiving space so that by opening the package along said tear line, the conductor portion can be broken.

11. The package of claim 10, further including a strip of tear resistant material connected to said conductor portion and positioned within said interior portion.

12. The package of claim 11, wherein said strip of tear resistant material extends through an opening of said package to provide a gripping means to facilitate easy opening of said package.

13. The package of claim 10, wherein said flexible conductive strip includes a portion extending transverse from said loop and which extends through an opening of said package to provide a gripping means to facilitate easy opening of said package.

14. The package of claim 10, wherein at least one of said lead wires is threaded within said package through said loop and within said interior portion so as to pass through the material of said package from said interior portion.

15. The package of claim 10, wherein said first electrode is provided on a separate liner than the liner of said second electrode.

16. The package of claim 10, wherein the lead wire of each electrode extends partially within the electrode between the backing layer and the conductive adhesive, and a terminal is provided to electrically connect the lead wire within the electrode to the conductive adhesive layer disposed on the backing layer.

17. The package of claim 7 wherein the liners of the first and second electrodes have a plurality of holes formed therein.

18. An automated external defibrillator (AED) including a packaged pair of electrodes, wherein the AED has a case, electrode terminals, a battery compartment and battery terminals in the case, a high voltage circuit coupled to the battery terminals and a control system, the packaged pair of electrodes comprising:

a package comprised of flexible material defining a pouch having an interior cavity;

first and second electrodes within an electrode receiving space of said interior cavity wherein each electrode includes an electrically nonconductive flexible backing layer and a patient engaging electrically conductive adhesive layer disposed on said flexible backing layer, said flexible backing layer having a lead wire extending therefrom, the lead wire being in electrical contact with said patient engaging electrically conductive adhesive layer, wherein said first and second electrodes are each disposed on an electrically nonconductive liner; and

a conductor portion connected between the first and second electrodes and adjacent the backing layers for connecting the first and second electrodes, thereby electrically completing a circuit connecting the lead wire of said first electrode to the lead wire of said second electrode.

19. The AED of claim 18, wherein the lead wires from said first and second electrodes extend through an opening provided through said package to the outside of said package.

20. The AED of claim 18, further including a tear line along which the package is to be opened and which divides the interior cavity of the package into said electrode receiving space and an interior portion.

21. The AED of claim 20, wherein said conductor portion comprises a flexible conductive strip, and said first and second electrodes are provided with their backing layers generally parallel to one another and with a loop formed in the conductor portion, said loop extending across said tear line and into said interior portion of said package from said electrodes within said electrode receiving space so that by opening the package along said tear line, the conductor portion can be broken.

22. The AED of claim 21, further including a strip of tear resistant material connected to said conductor portion and positioned within said interior portion.

23. The AED of claim 22, wherein said strip of tear resistant material extends through an opening of said package to provide a gripping means to facilitate easy opening of said package.

24. The AED of claim 21, wherein said flexible conductive strip includes a portion extending transverse from said loop and which extends through an opening of said package to provide a gripping means to facilitate easy opening of said package.

25. The AED of claim 21, wherein at least one of said lead wires is threaded within said package through said loop and within said interior portion so as to pass through the material of said package from said interior portion.

26. The AED of claim 21, wherein said first electrode is provided on a separate liner than the liner of said second electrode.

27. The AED of claim 21, wherein the lead wire of each electrode extends partially within the electrode between the backing layer and the conductive adhesive, and a terminal is provided to electrically connect the lead wire within the electrode to the conductive adhesive layer disposed on the backing layer.

28. The AED of claim 18 wherein the liners of the first and second electrodes have a plurality of holes formed therein.