Personalized nutritional and wellness assistant
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Assignees
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Publication Number
US-9820656-B2
Publication Date
2017-11-21
Expiration Date
Abstract
The invention pertains to the establishment, implementation and management of a personalized information system pertinent to a user's general health, wellness and/or sport performance. Disclosed is a system capable of transcutaneous measurement of a subject including at least one light source, at least one light detector, and at least one component for generating or storing at least one value of VC02 or at least one value of V02 from the detected signal. Further, disclosed is a portable device for analyzing the composition of the respired gasses of a subject including at least one air flow conduit through which the subject can inspire or expire air through the body of the device, at least one sampling portal, an oxygen sensor, and at least one flow sensor. A dual-battery system is also provided by which an uninterrupted power supply can be provided for electronic components.
Core Innovation
The invention provides a system capable of transcutaneous measurement of a subject using at least one light source to shine light onto or through tissues of and under skin and at least one light detector to receive light reflected from the tissues and convert it into a detected signal. From the detected signal, the system generates and stores values for VCO2 and VO2, where VO2 corresponds to an instantaneous rate of oxygen consumption and VCO2 corresponds to an instantaneous rate of carbon dioxide production.
The system continuously calculates a real-time respiratory quotient from real-time values of VCO2 and VO2 and uses the real-time respiratory quotient to determine a real-time energy uptake of the subject. In this way, the detected reflected light supports ongoing metabolic characterization through real-time VCO2/VO2 generation, real-time respiratory quotient calculation, and determination of real-time energy uptake.
The invention is also directed to a method for transcutaneous measurement in which light is shone onto or through tissues of and under skin, reflected light is received and converted into a detected signal, and VCO2 and VO2 values are generated from the detected signal. The method continuously calculates a real-time respiratory quotient from real-time values of VCO2 and VO2 and uses the real-time respiratory quotient to determine a real-time energy uptake of the subject.
Claims Coverage
The partial content provides two independent claims: an apparatus/system claim and a method claim. The inventive features center on transcutaneous optical measurement to generate real-time VCO2 and VO2, continuous respiratory quotient calculation, and using the respiratory quotient to determine real-time energy uptake.
Transcutaneous light-based generation of VCO2 and VO2
A system comprising at least one light source for shining light onto or through tissues of and under skin; at least one light detector for receiving light reflected from tissues of the skin or from tissues underlying the skin and converting the reflected light into a detected signal; and at least one component adapted to generate and store at least one value for each of VCO2 and VO2 from the detected signal, wherein VO2 corresponds to an instantaneous rate of oxygen consumption and wherein VCO2 corresponds to an instantaneous rate of carbon dioxide production.
Continuous respiratory quotient to determine real-time energy uptake
The system further adapted to continuously calculate a real-time respiratory quotient of the subject from real-time values of VCO2 and VO2 and to use the real-time respiratory quotient to determine a real-time energy uptake of the subject.
Transcutaneous method with real-time respiratory quotient
A method comprising shining light onto or through tissues of and under skin; receiving light reflected from tissues of the subject's skin or from tissues underlying the subject's skin and converting the reflected light into a detected signal; generating at least one value for each of VCO2 and VO2 from the detected signal, wherein VO2 corresponds to an instantaneous rate of oxygen consumption and wherein VCO2 corresponds to an instantaneous rate of carbon dioxide production.
Using real-time respiratory quotient to determine real-time energy uptake
Continuously calculating a real-time respiratory quotient of the subject from real-time values of VCO2 and VO2 and using the real-time respiratory quotient to determine a real-time energy uptake of the subject.
Across both independent claims, the coverage is focused on generating VCO2 and VO2 from transcutaneously detected reflected light, continuously calculating real-time respiratory quotient from those real-time VCO2/VO2 values, and using the respiratory quotient to determine real-time energy uptake.
Stated Advantages
Documented Applications
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