Multi-stream data collection system for noninvasive measurement of blood constituents
First Claim
1. A user-worn physiological measurement device that defines a plurality of optical paths, the physiological measurement device comprising:
- a plurality of emitters configured to emit light into tissue of a user;
at least four detectors positioned on a first surface and surrounded by a wall that is operably connected to the first surface; and
a cover operably connected to the wall and comprising a single protruding convex surface configured to be located between tissue of the user and the at least four detectors when the physiological measurement device is worn by the user,wherein the physiological measurement device provides a plurality of optical paths, wherein each of the optical paths;
exits an emitter of the plurality of emitters,passes through tissue of the user,passes through the single protruding convex surface, andarrives at a corresponding detector of the at least four detectors, the corresponding detector configured to detect light emitted by the emitter after traversal by the light of a corresponding optical path of the plurality of optical paths and after attenuation of the light by tissue of the user.
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Accused Products
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
38 Claims
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1. A user-worn physiological measurement device that defines a plurality of optical paths, the 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 positioned on a first surface and surrounded by a wall that is operably connected to the first surface; and a cover operably connected to the wall and comprising a single protruding convex surface configured to be located between tissue of the user and the at least four detectors when the physiological measurement device is worn by the user, wherein the physiological measurement device provides a plurality of optical paths, wherein each of the optical paths; exits an emitter of the plurality of emitters, passes through tissue of the user, passes through the single protruding convex surface, and arrives at a corresponding detector of the at least four detectors, the corresponding detector configured to detect light emitted by the emitter after traversal by the light of a corresponding optical path of the plurality of optical paths and after attenuation of the light by tissue of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A physiological measurement system comprising:
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a physiological sensor device comprising; a plurality of emitters configured to emit light into tissue of a user; at least four detectors positioned on a first surface and surrounded by a wall that is operably connected to the first surface; and a cover operably connected to the wall and comprising a single protruding convex surface configured to be located between tissue of the user and the at least four detectors when the physiological sensor device is worn by the user, wherein the physiological sensor device provides a plurality of optical paths, wherein each of the optical paths; exits an emitter of the plurality of emitters, passes through tissue of the user, passes through the single protruding convex surface, and arrives at a corresponding detector of the at least four detectors, the corresponding detector configured to detect light emitted by the emitter after traversal by the light of a corresponding optical path of the plurality of optical paths and after attenuation of the light by tissue of the user; and a handheld computing device in wireless communication with the physiological sensor device, wherein the handheld computing device comprises; one or more processors configured to wirelessly receive one or more signals from the physiological sensor device, the one or more signals responsive to at least a physiological parameter of the user; a touch-screen display configured to provide a user interface, wherein; the user interface is configured to display indicia responsive to measurements of the physiological parameter, and an orientation of the user interface is configurable responsive to a user input; and a storage device configured to at least temporarily store at least the measurements of the physiological parameter. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification