US 12,465,751 B2
Flexible nonmetallic electrode
Kath M. Bogie, Cleveland, OH (US); Dhruv Seshadri, Cleveland, OH (US); Medha Srigiri, Cleveland, OH (US); and Christian A. Zorman, Euclid, OH (US)
Assigned to United States Govemment as represented by the Department of Veterans Affairs, Washington, DC (US); and Case Western Reserve University, Cleveland, OH (US)
Appl. No. 17/917,452
Filed by United States Govemment as Represented by the Department of Veterans Affairs, Washington, DC (US); and CASE WESTERN RESERVE UNIVERSITY, Cleveland, OH (US)
PCT Filed Apr. 9, 2021, PCT No. PCT/US2021/026571
§ 371(c)(1), (2) Date Oct. 6, 2022,
PCT Pub. No. WO2021/207594, PCT Pub. Date Oct. 14, 2021.
Claims priority of provisional application 63/007,596, filed on Apr. 9, 2020.
Prior Publication US 2023/0158293 A1, May 25, 2023
Int. Cl. A61N 1/04 (2006.01); A61B 5/0531 (2021.01); A61F 13/05 (2024.01); H01B 1/24 (2006.01)
CPC A61N 1/0468 (2013.01) [A61B 5/0531 (2013.01); A61F 13/05 (2024.01); H01B 1/24 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A device comprising:
an absorbent layer having an inner side and an opposed outer side;
a plurality of electrodes disposed over the inner side of the absorbent layer, wherein each electrode of the plurality of electrodes comprises carbon black and a polymer, wherein the polymer is one of polydimethylsiloxane (PDMS) or polyvinyl alcohol (PVA), wherein the carbon black is provided at a weight of between 10% and 50% of a weight of the polymer;
an occlusive layer positioned against the outer side of the absorbent layer, wherein the occlusive layer comprises flexible circuitry that defines a plurality of electrical contacts,
a plurality of temperature sensors coupled to the flexible circuitry;
wherein each electrode of the plurality of electrodes is in electrical communication with a respective contact of the plurality of contacts of the flexible circuitry.
 
11. An electrode assembly comprising:
an electrode, wherein the electrode has a contact side and an opposing side, wherein the electrode comprises carbon black and a polymer, wherein the polymer is one of polydimethylsiloxane (PDMS) or polyvinyl alcohol (PVA), wherein the carbon black is provided at a weight of between 10% and 50% of a weight of the polymer; and
a layer of hydrogel disposed on the contact side of the electrode,
wherein the layer of hydrogel is disposed on the contact side of the electrode in a pattern so that at least a portion of the contact side of the electrode does not have hydrogel thereon.