Lateralization spectrophotometer
US5873821A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 15, 1993 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Nov 15, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention utilizes differential measurement of radiation that migrated into two migration paths between two source-detector pairs placed on the head in a manner that each path is localized in a portion of one hemisphere of the brain. The present invention also provides various embodiments of spectrophotometer systems for in vivo examination of tissue of a human by measuring changes in electromagnetic radiation scattered and absorbed in a migration path in the tissue. Generally, the spectrophotometer systems comprise a light source for introducing the radiation into the tissue, a detector for detecting radiation that has migrated in the tissue, a processor for processing signals of the detected radiation to create processed data, and a system for determining physiological or pathophysiological changes in the tissue of interest. The present invention also provides for determining the metabolic condition of an aerobically stressed portion of tissue such as the muscle tissue of an exercising person.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.