OPTICAL MEASUREMENT OF PHYSIOLOGICAL BLOOD PARAMETERS
First Claim
Patent Images
1. A system to optically analyze tissue of a patient comprising:
- a tissue interface assembly configured to emit an input optical signal into the tissue, receive a reference optical signal and a measurement optical signal from the tissue, and transfer the reference optical signal and the measurement optical signal to an optical link;
the optical link configured to transfer the reference optical signal and the measurement optical signal; and
a transceiver configured to receive the reference optical signal and the measurement optical signal and process the reference optical signal and the measurement optical signal to identify a value of a physiological parameter of the patient.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for measuring a physiological parameter of tissue in a patient are provided herein, such as a system to optically analyze tissue of a patient. An example system includes a tissue interface assembly configured to emit an input optical signal into the tissue, receive a reference optical signal and a measurement optical signal from the tissue, and transfer the reference optical signal and the measurement optical signal to the optical link. The optical link is configured to transfer the reference optical signal and the measurement optical signal. The transceiver is configured to receive and convert the optical signals into digital signals.
-
Citations
20 Claims
-
1. A system to optically analyze tissue of a patient comprising:
-
a tissue interface assembly configured to emit an input optical signal into the tissue, receive a reference optical signal and a measurement optical signal from the tissue, and transfer the reference optical signal and the measurement optical signal to an optical link; the optical link configured to transfer the reference optical signal and the measurement optical signal; and a transceiver configured to receive the reference optical signal and the measurement optical signal and process the reference optical signal and the measurement optical signal to identify a value of a physiological parameter of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A system to optically analyze tissue of a patient comprising:
-
a tissue interface assembly configured to emit an input optical signal at a first wavelength and modulated at a first frequency into the tissue, receive a reference optical signal and a measurement optical signal from the tissue, and transfer the reference optical signal and the measurement optical signal to a fiber optic cable; the fiber optic cable comprising a second optical fiber configured to transfer the reference optical signal and the measurement optical signal from the tissue interface assembly to the transceiver; the transceiver configured to receive and convert the reference optical signal into a digital reference signal and to receive and convert the measurement optical signal into a digital measurement signal; and a digital processor configured to process the digital measurement signal and the digital reference signal to determine a phase delay between the digital measurement signal and the digital reference signal and process the phase delay to determine physiological parameter for the tissue. - View Dependent Claims (17, 18)
-
-
19. A method of operating a system to analyze tissue of a patient, the method comprising:
-
generating an input optical signal and transferring the input optical signal over a fiber optic cable; receiving the input optical signal from the fiber optic cable and emitting the input optical signal into the tissue; receiving a reference optical signal and a measurement optical signal from the tissue and transferring the reference optical signal and the measurement optical signal over the fiber optic cable; receiving the reference optical signal and the measurement optical signal from the fiber optic cable and converting the reference optical signal into a digital reference signal and converting the measurement optical signal into a digital measurement signal; and processing the digital measurement signal and the digital reference signal to determine a phase delay between the digital measurement signal and the digital reference signal and processing the phase delay to determine physiological parameter for the tissue. - View Dependent Claims (20)
-
Specification