Flexible nonmetallic electrode
AssigneesThe United States Govemment as represented by the Department of Veterans Affairs, Case Western Reserve University
InventorsKath M. Bogie, Dhruv Seshadri, Medha Srigiri, Christian A. Zorman
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Abstract
An electrode can comprise carbon black and one of polydimethylsiloxane (PDMS) or PVA, wherein the carbon black has a weight of between 10% and 50% of a weight of the PDMS or PVA. The electrode can be suitable for bioelectronics. A pattern of hydrogel can be deposited on the electrode for providing adhesion to a subject. The electrode can be used in wound treatment and/or monitoring devices or in various other bioelectronics applications.
Claims18
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.
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.
Dependencies are inferred from the claim text.