Current stimulator for recording cranial nerve signals and operation method of current stimulator
US11831239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2022 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jul 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C27/026
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A current stimulator includes a first current generation circuit configured to generate a first current, injectable into a cranial nerve cell, through a current mirroring based on a plurality of transistor pairs; and a second current generation circuit, driven by a clock, configured to generate a second current smaller than the first current by controlling a charge rate based on a voltage difference between terminals of a capacitor. A first output impedance of the first current generation circuit and a second output impedance of the second current generation circuit have a magnitude greater than or equal to a predetermined ratio to a load impedance corresponding to the cranial nerve cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.