Portable broadband diffuse optical spectroscopic imaging (DOSI) device for noninvasive tissue characterization
US9772280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Jun 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4797
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A diffuse optical spectroscopic imaging (DOSI) apparatus for tissue spectroscopy measures absorption and scattering properties of tissue using multi-frequency frequency domain photon migration in a modular or networkable platform to provide full broadband information content. The apparatus includes: a broadband signal generator; a driver having an input coupled to the signal generator; a light source coupled to the driver, the light source for exposing the tissue to broadband modulated light at a plurality of wavelengths; an optical detector for receiving returned light from the tissue; an amplitude detection circuit communicated to the optical detector; a phase detection circuit communicated to the optical detector; and a plurality of filters and amplifiers, wherein the optical detector, amplitude detection circuit and phase detection circuit are interconnected with each other by corresponding ones of the plurality of filters and amplifiers to isolate signals and increase signal-to-noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.