Spectrophotometer for tissue examination
US6549795B1 · kind B1 · utility
143Cited by
69References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1998 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jul 14, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0242
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for transcranial examination of brain activity. Electromagnetic radiation of a selected wavelength is introduced into the brain from an input port located on an exterior of the subject's head. Radiation that has migrated through the subject's head is detected at a detection port to generate detected signals. While introducing and detecting the electromagnetic radiation, stimulation of brain activity is induced. The detected radiation signals are processed, and the processed signals are analyzed to determine a characteristic of the brain activity by correlating the processed signals with the stimulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.