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US 12,724,041 B2Granted
High-density implantable neural probes
AssigneeCarnegie Mellon University
InventorsMaysamreza Chamanzar, Zabir Ahmed, Jay Reddy
Life of this patent
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Abstract
Disclosed here are two approaches for implementing neural probes that consist of a thin, high-density Parylene C-based probe on a stainless steel shuttle. In a first approach, the high density Parylene C probe is microfabricated separately and is then affixed to a planar or curved stainless steel shuttle. In a second approach, the high-density probe is monolithically fabricated on a stainless steel shuttle by micromachining the stainless steel substrate.
Claims4
A neural probe comprising:
- a probe device comprising:
- a substrate composed of Parylene C;
- one or more multi-layer metal stacks comprising a first layer of platinum, a layer of gold and a second layer of platinum, deposited onto the substrate, the metal stacks each being patterned to define an electrode, interconnect and an electrical trace connecting the electrode and the interconnect;
- and
- an insulating layer composed of Parylene C and deposited on the substrate and the metal stacks, the insulating layer patterned to expose the electrodes and interconnects;
- and
- a shuttle comprising:
- a stainless steel tube bisected along an axial direction to expose a semicircular inner channel;
- and
- a bioresorbable polymer coating the inner channel;
- wherein the probe device is disposed in the inner channel of the shuttle and held therein by the bioresorbable polymer;
- the neural probe further comprising:
- a coating of the bioresorbable polymer disposed on the probe device and encapsulating the probe device in the inner channel of the shuttle.
10 more elements
Dependencies are inferred from the claim text.