Dermal sensing package and use

• US 8,798,709 B1
• Filed: 04/19/2010
• Issued: 08/05/2014
• Est. Priority Date: 04/19/2010
• Status: Active Grant

• Current Assignee: Neotech Products LLC
• Original Assignee: Neotech Products Incorporated
• Inventors: McCrary, Craig R., Sheraton, David A. Sr., Prunean, Joana Lavinia
• Primary Examiner(s): Cohen, Lee S
• Application Number:
  US12/799,060
• Time in Patent Office: 1,569 Days
• Field of Search: 600/391, 600/392
• US Class Current: 600/392
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/291 for electroencephalography [EEG]
• CPC Class Codes: A61B 5/68335 including release sheets or liners

Abstract

A sensor apparatus in the form a substantially flat package for receiving and transmitting physiologic electronic signals, to be monitored or recorded, comprising in combination, a first layer consisting of hydrogel and having opposite ends, second layer sections projecting oppositely relative to the opposite ends, and consisting of hydrocolloid, a thin conductive third layer directly overlying and contacting the top of the first layer, an electrical lead in contact with the thin conductive layer, and extending to the exterior of the layers, there being phthalate-free insulation on said lead, adhesive adhering the lead to said thin conductive layer, and a cover layer extending over the first, second and third layers, and over the lead.

Claims

1. A sensor apparatus in the form a substantially flat package for receiving and transmitting electronic signals, to be monitored or recorded, comprising in combination:

a) a first horizontal layer consisting of hydrogel and having opposite ends,

b) a second layer co-planar with the first layer and having spaced apart sections projecting horizontally endwise oppositely relative to first layer opposite ends, and consisting of hydrocolloid, said sections being in endwise contact with said first layer opposite ends, and defining junctions therewith, said first and second layers having the same thickness, at said junctions whereby said opposite ends of the first layer are everywhere adjacently enclosed by ends of said second layer eliminating all open space therebetween, the two layers being in adjacent end-to-end contact throughout the thicknesses of both layers,

c) a thin electrically conductive horizontally extending third layer directly overlying and having extensive surface to surface contact with the top of the first layer, and located above the level of the second layer said third layer being a single layer having everywhere the same total thickness which is substantially less than the thickness of each of the first and second layers, all of the first layer being directly below the third layer, said third layer having opposite ends that extend to said junctions of said first layer opposite ends with said second layer sections,

d) an electrical lead in contact with the top of said thin conductive layer, and extending horizontally to the exterior of said layers, there being phthalate-free insulation on said lead, said third layer being the only layer between said lead and said first layer,

e) adhesive adhering end wires of the lead to the top of said thin conductive layer,

f) a protective cover layer which is insulative extending over said first, second and third layers, and over said lead,

g) release liner extending at the bottom surfaces of the first layer and the second layer sections, and adhered thereto,

h) said first layer and second layer sections having co-planar bottom surfaces defining a continuous tacky lower surface engaging said release liner,

i) and said first layer and second layer sections having co-planar top surfaces defining a continuous upper surface, the top surface of the first layer engaged by said third layer between said first layer opposite ends, said first, second and third layers being radiolucent,

j) said first, second and third layers located at the underside of the lead.

2. The combination of claim 1 wherein said third layer consists of carbon having thickness everywhere less than the thickness of each of the first and second layers.

3. The combination of claim 1 wherein said lead extends over and is anchored to one of said second layer sections.

4. The combination of claim 1 wherein the release liner is enlarged and carries multiple packages, which are elongated and extend in parallel relation, for individual pull-off release in a common direction.

5. The combination of claim 1 wherein the first layer is rectangular.

6. The combination of claim 4 wherein the first layer of each package is rectangular.

7. The combination of claim 1 wherein the overall length dimension of the first and second layers is about 1 inch.

8. The combination of claim 7 wherein the overall width dimension of said first and second layers is about 0.38 inch.

9. The combination of claim 8 wherein the release liner supports at least three packages.

10. The combination of claim 1 wherein said insulation covers lead wiring that is electrically conductive.

11. The combination of claim 10 wherein said insulation comprises PVC.

12. The combination of claim 1 wherein said insulation consists essentially of PVC.

13. The combination of claim 1 wherein all of the insulation in or on said package is phthalate-free.