Measurement of finger temperature in near-infrared quantitative measurement instrument
OwnerRobert D. Rosenthal, Lynn N. Paynter +1inventors
InventorsRobert D. Rosenthal, Lynn N. Paynter, Reynaldo J. Quintana
Life of this patent
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Abstract
A near-infrared quantitative analysis instrument for measuring blood analytes in a finger of a subject includes a temperature-sensing thermistor-type ring worn around the base of the finger and connected to the instrument via a cable. A light shield glove may be provided with the thermistor-type ring attached thereto.
Claims11
A near-infrared quantitative analysis instrument for noninvasive measurement of blood present in a body part of a subject, comprising:
- introducing means including a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a subject;
- detecting means for detecting near-infrared energy being emitted from said body part and producing signals in response thereto;
- positioning means for positioning said body part closely adjacent to both said introducing means and said detecting means;
- housing means for housing said introducing means, said detecting means and said positioning means;
- temperature sensing means for measuring the temperature of said body part at a location on said body part external to said housing means;
- and
- processing means responsive to the signals produced by said detecting means and the temperature measured by said temperature sensing means for generating a signal indicative of a quantity of a certain analyte in the blood present in said body part.
A flexible thermistor ring attachable to a finger of a subject for measuring the temperature of said finger and including means for outputting the measured temperature, for use with a near-infrared quantitative analysis instrument for noninvasive measurement of an analyte in blood present in said finger.
A method of near-infrared quantitative analysis for noninvasive measurement of blood present in a body part of a subject, comprising the steps of:
- inserting said body part into a near-infrared quantitative analysis instrument;
- introducing near-infrared energy into blood present in said body part of said subject;
- detecting near-infrared energy being emitted from said body part and producing signals in response thereto;
- measuring the temperature of said body part at a location on said body part external to said instrument;
- and
- generating a signal indicative of a quantity of a certain analyte in the blood present in said body part in response to the signals produced by said detecting step and the temperature measured by said temperature measuring step.
Dependencies are inferred from the claim text.