Methods and devices for optical stimulation of neural tissues
US6921413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2001 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Jan 25, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0665
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides methods of directly stimulating neural tissue with optical energy. By stimulating neural tissue at wavelengths, laser pulses, and spot sizes disclosed herein, nerve stimulation may be used to uniquely stimulate neural tissue in way not afforded by other means of stimulation. It can allow basic scientists to study the properties of individual neurons or populations of neurons without piercing tissue with fragile microelectrodes. Furthermore, responses of neural tissue can be studied in a pure fashion without contamination by electrical artifact commonly seen with electrical stimulation. With respect to clinical uses, optical stimulation can be used to map function in subsections of peripheral nerves as an aid to operative repair. Finally, stimulation with optical energy does not require physical contact with the nerve which may be an advantage clinically when physical manipulation of neural tissue is not desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.