Disposable, pre-gelled, self-prepping electrode

• US 5,305,746 A
• Filed: 09/29/1992
• Issued: 04/26/1994
• Est. Priority Date: 09/29/1992
• Status: Expired due to Term

• Current Assignee: Nellcor Puritan Bennett LLC (Medtronic Plc)
• Original Assignee: Aspect Medical Systems, Inc. (Medtronic Plc)
• Inventors: Fendrock, Charles
• Primary Examiner(s): Cohen, Lee S.
• Application Number:
  US07/952,970
• Time in Patent Office: 574 Days
• Field of Search: 128/635-641, 128/644, 128/803, 607/153
• US Class Current: 600/391
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/257 using adhesive means, e.g. adhesive pads or tapes
• CPC Class Codes: A61B 5/266 containing electrolytes, conductive gels or pastes

Abstract

Disclosed is a disposable self-prepping electrode which utilizes an array or mat of flexile tines which serve to part the high impedance outer layers of skin to expose the low impedance, blood enriched layers without scratching or abrading. The tines are preferably imbedded in a conductive gel layer. In an alternate embodiment, a self prepping layer of flexile tines embedded in gel may be a single disposable self-prepping layer that is mounted over a permanent electrode.

Claims

1. An electrode for monitoring electrical signals of a body comprising:

an electrical pad;

means for parting and keeping parted outer layers of skin on the body without removing any skin, said means for parting being non-conductive and being arranged in close proximity to said electrical pad.

2. The electrode of claim 1 wherein said means for parting is embedded in, and extends from a surface of, a layer of conductive gel mounted on one surface of an electrical pad.

3. The electrode of claim 2 wherein said means for parting is an array of flexible non-conductive tines extending from said surface of said layer of conductive gel.

4. The electrode of claim 3 wherein said flexible tines are substantially parallel to each other.

5. The electrode of claim 3 wherein said flexible tines are of substantially uniform height.

6. The electrode of claim 2 wherein said layer of conductive gel is between 0.025 and 0.110 inches thick.

7. The electrode of claim 2 further comprising a flexible base and an adhesive layer arranged on a side of the electrode intended to contact the body between said flexible base and said layer of conductive gel.

8. The electrode of claim 7 further comprising an adhesive layer positioned over a side of said layer of gel designed to contact the body.

9. The electrode of claim 1 wherein said means for parting comprises an array of flexible non-conductive tines.

10. The electrode of claim 9 wherein said flexible tines are of substantially uniform height.

11. The electrode of claim 9 wherein said flexible tines are between 0.025 and 0.110 inches high.

12. The electrode of claim 9 wherein said flexible tines are between 0.002 and 0.015 inches thick.

13. The electrode of claim 9 wherein said flexible tines are substantially parallel to each other.

14. The electrode of claim 1 further comprising a flexible base and an adhesive layer arranged on a side of the electrode intended to contact the body between said flexible base and said means for parting.

15. The electrode of claim 14 wherein said adhesive layer is arranged around said means for parting.

16. A removable self-prepping layer for use with a monitoring electrode comprising:

a layer of conductive gel;

an array of flexible tines arranged in said layer of gel so that said tines extend beyond a surface of said gel.

17. The removable self-prepping layer of claim 16 further comprising at least one layer of adhesive mounted over at least one surface of said layer of conductive gel.

18. The removable self-prepping layer of claim 17 wherein a layer of adhesive is placed over top and bottom surfaces of said layer of conductive gel.

19. The removable self-prepping layer of claim 16 wherein said tines extend beyond only one surface of said gel.