Electrode and assembly

• US 5,496,363 A
• Filed: 07/13/1994
• Issued: 03/05/1996
• Est. Priority Date: 06/02/1993
• Status: Expired due to Fees

• Current Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Original Assignee: Minnesota Mining and Manufacturing Co (3M Company)
• Inventors: Burgio, Paul A., Simonsen, Richard J., Fogle, Donald P.
• Primary Examiner(s): Sykes, Angela D.
• Assistant Examiner(s): HUANG, STEPHEN D
• Application Number:
  US08/274,630
• Time in Patent Office: 601 Days
• Field of Search: 128/639, 128/640, 128/642, 607/46, 607/47, 607/148, 607/149, 607/152
• US Class Current: 607/152
• CPC Class Codes: A61B 18/16 Indifferent or passive electrodes for grounding
• CPC Class Codes: A61N 1/0456 Specially adapted for transcutaneous electrical nerve stimulation [TENS]
• CPC Class Codes: A61N 1/0472 Structure-related aspects
• CPC Class Codes: A61N 1/0476 Array electrodes (including any electrode arrangement with more than one electrode for at least one of the polarities)
• 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 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: H01R 2201/12 for medicine and surgery
• CPC Class Codes: H01R 4/04 using electrically conductive adhesives

Abstract

TENS electrodes and connectors useful with such electrodes are disclosed. The electrodes include active electrodes and return electrodes having a common carrier with a field of pressure sensitive adhesive for adhering the electrode to a hand (finger or thumb) of the practitioner or to an applicator. Extraoral electrodes adhere to facial skin of mammals and provide TENS treatment for intraoral-procedures. The electrodes can be single channel or dual channel to combine active electrodes and return electrodes on one electrode. The connector can be single channel or dual channel and has a ridge for projecting through the tab portion of the electrode for more secure mechanical and electrical connection. Optionally, a dual channel electrode is used in combination with an elongated applicator having a bifurcated end in order to facilitate guiding a syringe needle toward a desired injection site. Assemblies of electrodes on alternative embodiments of release liners are also disclosed.

Claims

1. An electrode for transcutaneous electrical nerve stimulation, comprising:

a TENS electrically conductive surface having a pad portion and a tab portion, wherein the electrically conductive surface has electrically conductive particles comprising metal or graphite, a field of conductive adhesive contacting the pad portion, wherein perimeter dimensions of the field of conductive adhesive are within perimeter dimensions of a corresponding pad portion of the electrically conductive surface contacted by the conductive adhesive, and at least two separate fields of biocompatible pressure sensitive adhesive contacting the pad portion at opposing locations proximal and distal to the tab portion.

2. The electrode according to claim 1, wherein surface area of the field of conductive adhesive is within surface area of the corresponding pad portion.

3. The electrode according to claim 1, wherein the field of conductive adhesive is continuous and integral.

4. The electrode according to claim 2, further comprising a common carrier including both the TENS electrically conductive surface and at least one additional TENS electrically conductive surface to provide at least two channels of TENS on the electrode.

5. A TENS electrode comprising:

a backing material having on one surface a TENS electrically conductive surface and the backing material having on a side opposing the electrically conductive surface a field of pressure sensitive adhesive for holding the TENS electrode to a hand of a practitioner or an applicator,

wherein the electrode further comprises a common carrier, wherein two TENS electrically conductive surfaces are joined on the common carrier, and wherein one conductive surface comprises an active electrode pad and wherein the second conductive surface comprises a return electrode pad.

6. The electrode according to claim 5, wherein each electrically conductive surface has a tab portion and a pad portion and wherein the tab portion has sufficient length to extend extraorally when the electrode is used intraorally.

7. The electrode according to claim 5, wherein the electrode further comprises a field of conductive adhesive contacting the active electrode pad and a field of conductive adhesive contacting the return electrode pad.

8. The electrode according to claim 6, wherein the electrode further comprises a separate field of conductive adhesive contacting each pad portion of each electrically conductive surface.

9. The electrode according to claim 5, wherein the electrode further comprises a notch in the common carrier between the active electrode pad and the return electrode pad.

10. The electrode according to claim 6, wherein the electrode further comprises a notch in the common carrier between pad portions of electrically conductive surfaces.

11. A biomedical electrode assembly for storage of at least one biomedical electrode comprising:

a backing strip having on one surface an electrically conductive surface and the backing material having on the side opposing the electrically conductive surface a field of pressure sensitive adhesive for holding a biomedical electrode to a hand of a practitioner or an applicator;

a field of conductive adhesive contacting a portion of the electrically conductive surface;

a first release liner releasably covering the field of pressure sensitive adhesive; and

a second release liner releasably coveting the field of conductive adhesive.

12. The assembly according to claim 11, wherein more than one biomedical electrode is included in the assembly and wherein the first release liner contacts each additional biomedical electrode.

13. The assembly according to claim 11, wherein more than one biomedical electrode is included in the assembly and wherein the second release liner contacts each additional biomedical electrode.

14. The assembly according to claim 11, wherein two electrically conductive surfaces are contained on the backing strip, and wherein one surface comprises an active electrode pad and wherein the second surface comprises a return electrode pad.

15. The assembly according to claim 14, wherein each electrically conductive surface has a tab portion and a pad portion and wherein the tab portion has sufficient length to extend extraorally when the electrode is used intraorally.

16. The assembly according to claim 14, wherein each electrically conductive surface is a TENS electrically conductive surface.

17. The assembly according to claim 14, wherein each electrically conductive surface is a metallic surface.

18. The assembly according to claim 14, wherein each electrically conductive surface is a graphite surface.

19. The assembly according to claim 11 wherein the second release liner further comprises a region of adhesiveness and a region of release surface, wherein the region of release surface contacts the field of conductive adhesive.

20. An electrode for transcutaneous electrical nerve stimulation, comprising:

a TENS electrically conductive surface having a pad portion and a tab portion, wherein the electrically conductive surface has electrically conductive particles comprising metal or graphite, and a continuous and integral field of conductive adhesive contacting the pad portion, wherein surface area of the pad portion is greater than the surface area of the continuous and integral field of conductive adhesive, and wherein perimeter dimensions of the field of conductive adhesive are within perimeter dimensions of a corresponding pad portion of the electrically conductive surface contacted by the conductive adhesive for transmission of electrical signals of a substantially uniform current density from the pad portion to mammalian skin; and

wherein the electrode further comprises a common carrier including both the TENS electrically conductive surface and at least one additional TENS electrically conductive surface to provide at least two channels of TENS on the electrode.

21. The electrode according to claim 20, further comprising at least one field of biocompatible pressure sensitive adhesive contacting the pad portion.

22. The electrode according to claim 20, wherein at least two separate fields of biocompatible pressure sensitive adhesive contact the pad portion at opposing locations proximal and distal to the tab portion.

23. A method of using TENS electrodes, comprising the steps of:

(a) applying one electrode according to claim 20 extraorally to facial skin of a mammal, and

(b) applying a second electrode according to claim 20 to facial skin of a mammal.

24. An electrode, comprising:

a non-conductive flexible backing having an electrically conductive surface contacting both a field of conductive adhesive and two opposing fields of biocompatible pressure sensitive adhesive,

wherein the flexible backing comprises a tab portion and a pad portion, and

wherein the two opposing fields of biocompatible pressure sensitive adhesive contact opposing locations on the pad portion proximal and distal to the tab portion.

25. The electrode according to claim 24, wherein the field of conductive adhesive contacts only the pad portion.