Measuring tissue oxygenation
US7532919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3144
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for calculating tissue oxygenation, e.g., oxygen saturation, in a target tissue are disclosed. In some embodiments, the methods include: (a) directing incident radiation to a target tissue and determining reflectance spectra of the target tissue by measuring intensities of reflected radiation from the target tissue at a plurality of radiation wavelengths; (b) correcting the measured intensities of the reflectance spectra to reduce contributions thereto from skin and fat layers through which the incident radiation propagates; (c) determining oxygen saturation in the target tissue based on the corrected reflectance spectra; and (d) outputting the determined value of oxygen saturation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.