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US 10,292,656 B2Granted
Fabrication for ultra-compliant probes for neural and other tissues
AssigneeCarnegie Mellon University
InventorsGary K. Fedder, Burak Ozdoganlar, Peter J. Gilgunn
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Abstract
Methods of fabricating ultra-miniature, ultra-compliant probe arrays through spin coating, wherein a dissolvable material in hydrogel form is dispensed onto an assembled mold with wires. Once the dissolvable material is dispensed onto the mold, centrifuging spin casts the material by evaporating the solvent, forming a dried dissolvable polymer. Finally, a device is used with water to remove excess dissolvable material to obtain a dissolvable needle with wires.
Claims7
A method of spin coating fabrication of needle for a neural probe comprising:
- providing a top mold and a bottom mold to form an assembled mold with wires;
- dispensing a dissolvable material in a hydrogel form onto the assembled mold with the wires;
- centrifuging the dissolvable material to spin-cast the dissolvable material by evaporating solvent to form a dried dissolvable polymer;
- and
- using a wiping device with intermittent applications of water to remove excess dissolvable material to obtain needle shape only in the assembled mold with the wires to form a final dissolvable needle with wires embedded.
2 more elements
Dependencies are inferred from the claim text.