Tissue oxygen saturation detection and related apparatus and methods
First Claim
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1. A narrow-band optical device for determining muscle oxygenation level, comprising:
- a wearable housing;
an optical source array in the wearable housing including a plurality of narrow-band optical sources;
a plurality of optical detectors in the wearable housing including at least three optical detectors arranged substantially in a linear arrangement on a same side of the optical source array, wherein the at least three optical detectors include a first optical detector of a first size disposed a first distance from the optical source array, a second optical detector of a second size larger than the first size disposed a second distance greater than the first distance from the optical source array, and a third optical detector disposed a third distance greater than the second distance from the optical source array,wherein the first optical detector, the second optical detector, and the third optical detector are configured to detect an optical signal emitted from the optical source array; and
a processor coupled to outputs of the plurality of optical detectors and configured to process output signals from the plurality of optical detectors and determine the muscle oxygenation level.
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Abstract
A wearable optical device is described for optically detecting parameters of interest within muscle, such as during physical activity or when at rest. The parameters of interest include oxygenation level and/or hemoglobin concentrations in some situations. The detected parameters, such as oxygenation level, may be used to assess physical performance, such as the extent to which the muscle is utilizing aerobic or anaerobic processes. Methods for determining the parameters of interest, such as oxygenation level, from the detected optical signals are also described, and feedback may be provided to a user.
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Citations
16 Claims
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1. A narrow-band optical device for determining muscle oxygenation level, comprising:
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a wearable housing; an optical source array in the wearable housing including a plurality of narrow-band optical sources; a plurality of optical detectors in the wearable housing including at least three optical detectors arranged substantially in a linear arrangement on a same side of the optical source array, wherein the at least three optical detectors include a first optical detector of a first size disposed a first distance from the optical source array, a second optical detector of a second size larger than the first size disposed a second distance greater than the first distance from the optical source array, and a third optical detector disposed a third distance greater than the second distance from the optical source array, wherein the first optical detector, the second optical detector, and the third optical detector are configured to detect an optical signal emitted from the optical source array; and a processor coupled to outputs of the plurality of optical detectors and configured to process output signals from the plurality of optical detectors and determine the muscle oxygenation level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification