Electrode system with disposable gel

• US 5,263,481 A
• Filed: 05/21/1992
• Issued: 11/23/1993
• Est. Priority Date: 05/21/1992
• Status: Expired due to Term

• Current Assignee: Jens Axelgaard
• Original Assignee: Jens Axelgaard
• Inventors: Axelgaard, Jens
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): PEFFLEY, MICHAEL F
• Application Number:
  US07/887,690
• Time in Patent Office: 551 Days
• Field of Search: 128/639-641, 128/643, 128/644, 128/783, 128/798, 128/802, 128/421
• US Class Current: 600/392
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61N 1/0452 Specially adapted for transcutaneous muscle stimulation [TMS]
• CPC Class Codes: A61N 1/0456 Specially adapted for transcutaneous electrical nerve stimulation [TENS]
• CPC Class Codes: A61N 1/0492 Patch electrodes A61N1/0412, A61N1/0428 take precedence

Abstract

An electrode system includes a nonconductive material and straps for positioning and holding the nonconductive material against a body part. Flexible conductive fabric patches are attached to the nonconductive material along with lead wires for electrically connecting the fabric patches to a remote monitor or pulse generator. An electrically conductive adhesive gel pad is provided for releasably coupling the flexible conductive fabric patch to the body part. The pad is selectively removable from the fabric patch, enabling removal of the patch from the gel pad while the latter remains adhered to a body part. This facilitates release of the conductive fabric patch and separate disposal of the adhesive gel pad.

Claims

1. An electrode system comprising:

a nonconductive material;

means for positioning and supporting said nonconductive material against a body part;

a flexible conductive patch attached to said nonconductive material;

a lead wire electrically connected to said flexible conductive patch; and

electrically conductive gel means for releasably coupling said flexible conductive patch to said body part, said electrically conductive gel means being removable form said flexible conductive patch, said electrically conductive gel means comprises means for causing said electrically conductive gel means to adhere more to the body part than to the flexible conductive patch, thereby enabling the flexible conductive patch and attached nonconducting material to be removed from the body part, while leaving the electrically conductive gel means adhered to the body part.

2. The electrode system according to claim 1 comprising a plurality of flexible conductive patches attached to said nonconductive material in a spaced apart array with each patch having a separate lead wire attached thereto.

4. The electrode system according to claim 1 wherein said means for causing said electrically conductive gel means to adhere more to the body part comprises a flexible mesh disposed within said electrically conductive gel means.

5. The electrode system according to claim 4 wherein said flexible mesh is disposed within said electrically conductive gel means closer to one surface than another opposing surface, said one surface being used to adhere to gel means to said flexible conductive patch.

6. The electrode system according to claim 5 wherein said flexible mesh comprises a nonconductive material having interstitial means for supporting electrically conductive gel means thereon.

3. The electrode system according to claim further comprising a moisture barrier disposed between said lead wire and the nonconductive material.

7. The electrode system according to claim 7 wherein said flexible conductive patch is sewn to said nonconductive material.

8. The electrode system according to claim 7 wherein said lead wire comprises means for facilitating sewing thereof to the conductive patch with electrical contact therebetween being sustained by the sewing.

9. The electrode system according to claim 8 wherein said means for facilitating sewing comprises a plurality of electrically conductive strands, said strands being sewn to the flexible conductive patch.

10. An electrode system comprising:

a nonconductive pile material;

means for positioning and supporting said nonconductive material against a body part;

a flexible conductive patch including hook material means for removably attaching said flexible conductive patch to said nonconductive pile material;

a lead wire electrically connected to said flexible conductive patch; and

electrically conductive gel means for releasably coupling said flexible conductive patch to said body part, said electrically conductive gel means being removable from said flexible conductive patch,

said electrically conductive gel means comprises means for causing said electrically conductive gel means to adhere more to the body part than to the flexible conductive patch, thereby enabling the flexible conductive patch and attached nonconducting material to be removed from the body part, while leaving the electrically conductive gel means adhered to the body part.

11. The electrode system according to claim 10 wherein said means for causing said electrically conductive gel means to adhere more to the body part comprises a flexible mesh disposed within said electrically conductive gel means.

12. The electrode system according to claim 11 wherein said flexible mesh is disposed within said electrically conductive gel means closer to one surface than another opposing surface, said one surface being used to adhere the gel means to said flexible conductive patch.

13. The electrode system according to claim 12 wherein the nonconductive material is washable.

14. An electrode system comprising:

a nonconductive fabric;

means attached to said nonconductive fabric for positioning and compressing said nonconductive fabric against a body part;

a plurality of flexible conductive fabric patches attached to said nonconductive fabric;

a lead wire electrically connected to said flexible conductive fabric patches; and

a plurality of disposable, electrically conductive gel means for releasably coupling said flexible conductive fabric patch to said body part;

said electrically conductive gel means being removable from said flexible conductive fabric patch, said electrically conductive gel means comprises means for causing said electrically conductive gel means to adhere more to the body part than to the flexible conductive fabric patch, thereby enabling the flexible conductive fabric patch and attached nonconducting fabric to be removed from the body part, while leaving the electrically conductive gel means adhered to the body part.

15. The electrode system according to claim 14 further comprising a moisture barrier disposed between said lead wire and the nonconductive fabric.

16. The electrode system according to claim 14 comprising a plurality of flexible conductive fabric patches attached to said nonconductive fabric in a spaced apart array with each fabric patch having a separate lead wire attached thereto.

17. The electrode system according to claim 14 wherein said means for causing said electrically conductive gel means to adhere more to the body part comprises a flexible mesh disposed within said electrically conductive gel means.

18. The electrode system according to claim 17 wherein said flexible mesh is disposed within said electrically conductive gel means closer to one surface than another opposing surface, said one surface being used to adhere the gel means to said flexible conductive fabric patch.

19. The electrode system according to claim 18 wherein said flexible mesh comprises a nonconductive material having interstitial means for supporting electrically conductive gel means thereon.

20. The electrode system according to claim 18 wherein said flexible conductive fabric patch is sewn to said nonconductive fabric.

21. The electrode system according to claim 18 wherein said lead wire comprises a plurality of electrically conductive strands and the strands are sewn to the flexible conductive fabric patch.

22. A method for applying and/or detecting electrical pulses in an animal body comprising the steps of:

(a) applying one side of an electrically conductive adhesive gel pad to an electrically conductive fabric patch;

(b) coupling the conductive fabric patch to a body part by adhering another side of the conductive adhesive gel pad against a body part;

(c) electrically connecting the conductive fabric patch with an electrical pulse generator and/or receiver;

(d) preventing migration of the conductive fabric patch and conductive adhesive gel pad along said body part during application and/or detection or electrical pulses;

(e) removing the conductive fabric patch from the conductive adhesive gel pad leaving the conductive adhesive gel pad on said body part and saving the conductive fabric patch for later use according to hereinabove steps (a)-(d);

(f) removing and disposing of the conductive adhesive gel pad.

23. The method according to claim 22 further comprising the step of cleaning the conductive fabric patch before later use according to steps (a)-(d) of claim 22.