Multi-stream data collection system for noninvasive measurement of blood constituents
DC CAFCFirst Claim
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1. A noninvasive optical physiological sensor comprising:
- a plurality of emitters configured to emit light into tissue of a user;
at least four detectors, wherein at least one of the at least four detectors is configured to detect light that has been attenuated by tissue of the user, and wherein the at least four detectors are arranged on a substrate;
a wall configured to circumscribe at least the at least four detectors; and
a cover configured to be located between tissue of the user and the at least four detectors when the noninvasive optical physiological sensor is worn by the user, wherein the cover comprises a single protruding convex surface operable to conform tissue of the user to at least a portion of the single protruding convex surface when the noninvasive optical physiological sensor is worn by the user, and wherein the wall operably connects to the substrate and the cover.
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Abstract
The present disclosure relates to noninvasive methods, devices, and systems for measuring various blood constituents or analytes, such as glucose. In an embodiment, a light source comprises LEDs and super-luminescent LEDs. The light source emits light at at least wavelengths of about 1610 nm, about 1640 nm, and about 1665 nm. In an embodiment, the detector comprises a plurality of photodetectors arranged in a special geometry comprising one of a substantially linear substantially equal spaced geometry, a substantially linear substantially non-equal spaced geometry, and a substantially grid geometry.
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Citations
29 Claims
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1. A noninvasive optical physiological sensor comprising:
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a plurality of emitters configured to emit light into tissue of a user; at least four detectors, wherein at least one of the at least four detectors is configured to detect light that has been attenuated by tissue of the user, and wherein the at least four detectors are arranged on a substrate; a wall configured to circumscribe at least the at least four detectors; and a cover configured to be located between tissue of the user and the at least four detectors when the noninvasive optical physiological sensor is worn by the user, wherein the cover comprises a single protruding convex surface operable to conform tissue of the user to at least a portion of the single protruding convex surface when the noninvasive optical physiological sensor is worn by the user, and wherein the wall operably connects to the substrate and the cover. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical physiological measurement sensor comprising:
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a plurality of emitters configured to emit light into tissue of a user; a substrate including a planar surface; at least four detectors operably arranged on the planar surface of the substrate in a pattern; a cover comprising a single protruding convex surface; and a wall that surrounds the at least four detectors, wherein the wall operably connects to the substrate and the cover. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A noninvasive optical physiological measurement device comprising:
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a plurality of emitters configured to emit light into tissue of a user; at least four detectors, wherein at least one of the at least four detectors is configured to detect light that has been attenuated by tissue of the user; a cover configured to be located between tissue of the user and the at least four detectors when the noninvasive optical physiological measurement device is worn by the user, wherein the cover comprises a protruding surface operable to conform tissue of the user to at least a portion of the protruding surface when the noninvasive optical physiological measurement device is worn by the user, and wherein at least one of the at least four detectors is configured to receive light passed through the protruding surface after attenuation by tissue of the user; a wall surrounding the at least four detectors; and a substrate on which at least the at least four detectors are positioned, wherein the wall operably connects to the substrate and the cover, thereby positioning the at least four detectors within one or more spaces formed by at least the substrate, the wall, and the cover. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification