Patent ID: 11877846
Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A wearable biosensor device comprising
a microneedle array comprising a substrate integral with microneedles disposed on the substrate, the microneedle array comprising a nonconductive polymer and having an electrically conductive layer, wherein at least one of the microneedles is a working electrode functionalized with at least one chemical layer positioned on the electrically conductive layer and configured for producing an electrical signal from a reaction with a target analyte in a biofluid,
a cover unit fitted to the substrate comprising openings configured to correspond with the microneedles, such that a body region and a tip region of each of the microneedles passes through one of the openings, wherein a bottom portion of the body region, the cover unit, and/or the substrate comprise microfluidic channels containing a cured custom resin extending upward to a cut-off fluidic line on a respective microneedle, the cured custom resin insulating and securing the cover unit to the substrate and the microneedles, and
a plurality of holes in the substrate, the holes having contact pads being electrically conductive and mechanically frictionous, wherein the contact pads are extensions of the electrically conductive layer into each of the holes, and wherein each of the contact pads is in electrical contact with a first end of a conductive pin, and a second end of the conductive pin is in electrical contact with an electronics unit.