Patent ID: 11872022
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC A  G  H | IPC A  G  H

Claim 12:
13. A method, comprising:
directing, using a first light source, light of up to 900 nm into a tissue,
the first light source optically coupled to a probe,
the probe interfaced with a surface of the tissue;

directing, using a second light source, light of at least 1000 nm into the tissue,
the second light source optically coupled to the probe,
the probe interfaced with a surface of the tissue;

detecting, using a first detector, light based on scattering of light from the first light source in the tissue,
the first detector optically coupled to the probe, and
the first detector having a light sensitivity in a range of up to 900 nm;

detecting, using a second detector, light based on scattering of light from the second light source in the tissue,
the second detector optically coupled to the probe, and
the second detector having a light sensitivity in a range of at least 1000 nm;

receiving, by a processor, a first signal from the first detector corresponding to the detected light from the first light source;
receiving, by the processor, a second signal from the second detector corresponding to the detected light from the second light source; and
determining, by the processor, a blood flow measurement from the region of interest based on the first signal and the second signal.