PATHLENGTH ENHANCEMENT OF OPTICAL MEASUREMENT OF PHYSIOLOGICAL BLOOD PARAMETERS
First Claim
1. A method of operating a system for measuring a physiological parameter of blood in a patient, the method comprising:
- emitting at least one optical signal for propagation into tissue of the patient via a tissue interface assembly;
receiving the at least one optical signal after propagation;
identifying a propagation pathlength of the at least one optical signal; and
processing at least the propagation pathlength to determine a state of the tissue interface assembly on the tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for measuring a physiological parameter of tissue in a patient are provided herein. In a first example, a method of measuring a physiological parameter of blood in a patient is provided. The method includes emitting at least two optical signals for propagation through tissue of the patient, detecting the optical signals after propagation, identifying propagation pathlengths of the optical signals, and identifying detected intensities of the optical signals. The method also includes processing at least the propagation pathlengths to scale the detected intensities for determination of a value of the physiological parameter.
-
Citations
14 Claims
-
1. A method of operating a system for measuring a physiological parameter of blood in a patient, the method comprising:
-
emitting at least one optical signal for propagation into tissue of the patient via a tissue interface assembly; receiving the at least one optical signal after propagation; identifying a propagation pathlength of the at least one optical signal; and processing at least the propagation pathlength to determine a state of the tissue interface assembly on the tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system for measuring a physiological parameter of blood in a patient, comprising:
-
a tissue interface assembly configured to emit at least one optical signal for propagation into tissue of the patient and receive the at least one optical signal after propagation; and a measurement system configured to identify a propagation pathlength of the at least one optical signal, and process at least the propagation pathlength to determine a state of the tissue interface assembly on the tissue. - View Dependent Claims (10, 11, 12, 13, 14)
-
Specification