Wearable monitoring devices having sensors and light guides
First Claim
1. A monitoring device, comprising:
- at least one optical emitter comprising an emitting surface;
at least one optical detector comprising a detecting surface;
at least one housing supporting the at least one optical emitter and the at least one optical detector, wherein the at least one housing comprises at least one window in optical communication with the emitting surface of the at least one optical emitter and the detecting surface of the at least one optical detector, and wherein the at least one housing is configured to be attached to a body of a subject; and
light transmissive material that covers at least a portion of the at least one housing including the at least one window and that forms a light guiding region that is in optical communication with the at least one optical emitter via the at least one window and is configured to deliver light from the at least one optical emitter to the body of the subject via a portion thereof, and wherein the light guiding region and the at least one optical emitter emitting surface face substantially a same direction.
3 Assignments
0 Petitions
Accused Products
Abstract
A monitoring device includes a housing configured to be attached to a body of a subject. An optical emitter, optical detector, and sensor for measuring motion noise are located within the housing. Light transmissive material is in optical communication with the optical emitter and detector and is configured to deliver light from the optical emitter to one or more locations of the body of the subject and to collect light external to the housing and deliver the collected light to the detector. A signal processor is configured to receive and process signals produced by the optical detector and the motion noise sensor, and to remove noise from the signals produced by the optical detector. The signal processor may generate physiological parameters for the subject such as heart rate, blood flow, blood pressure, VO2max, heart rate variability, respiration rate, and blood gas/analyte level.
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Citations
46 Claims
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1. A monitoring device, comprising:
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at least one optical emitter comprising an emitting surface; at least one optical detector comprising a detecting surface; at least one housing supporting the at least one optical emitter and the at least one optical detector, wherein the at least one housing comprises at least one window in optical communication with the emitting surface of the at least one optical emitter and the detecting surface of the at least one optical detector, and wherein the at least one housing is configured to be attached to a body of a subject; and light transmissive material that covers at least a portion of the at least one housing including the at least one window and that forms a light guiding region that is in optical communication with the at least one optical emitter via the at least one window and is configured to deliver light from the at least one optical emitter to the body of the subject via a portion thereof, and wherein the light guiding region and the at least one optical emitter emitting surface face substantially a same direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A monitoring device, comprising:
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at least one optical emitter comprising an emitting surface; at least one optical detector comprising a detecting surface; at least one housing supporting the at least one optical emitter and the at least one optical detector, wherein the at least one housing comprises at least one window in optical communication with the emitting surface of the at least one optical emitter and the detecting surface of the at least one optical detector, and wherein the at least one housing is configured to be attached to a body of a subject; and light transmissive material that covers at least a portion of the at least one housing including the at least one window and that forms a light guiding region that is in optical communication with the at least one optical detector via the at least one window and is configured to collect light external to the at least one housing via a portion thereof and deliver the collected light to the at least one optical detector, wherein the light guiding region and the at least one optical detector detecting surface face substantially a same direction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A wearable device configured to be worn by a subject, the wearable device comprising:
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a housing; a chipset enclosed within the housing, the chipset comprising; a first optical emitter; a second optical emitter; at least one optical detector; a wireless chip configured to communicate with a remote device; at least one motion sensor; and at least one signal processor configured to process signals from the at least one motion sensor and signals from the at least one optical detector, and configured to communicate information with the wireless chip; wherein the at least one signal processor is configured to reduce motion artifacts associated with subject footstep movement; wherein the at least one signal processor is configured to determine a heart rate of the subject; at least one non-air light transmissive material that covers at least a portion of the housing, wherein the housing comprises a first light guide positioned between the first optical emitter and the at least one non-air light transmissive material, and wherein the housing comprises a second light guide positioned between the second optical emitter and the at least one non-air light transmissive material; cladding material associated with the at least one non-air light transmissive material to define a light-guiding region from at least one of the first and second optical emitters to the limb of the subject and/or from the limb of the subject to the at least one optical detector; and at least one blocking member configured to optically isolate at least one of the first and second optical emitters from the at least one optical detector; wherein the wearable device is configured to be worn on a limb of the subject. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of monitoring a subject via a wearable device worn on a limb of the subject, the wearable device comprising a housing and a chipset within the housing, wherein the chipset comprises first and second optical emitters, at least one optical detector, a wireless chip, at least one motion sensor, and at least one signal processor, wherein the housing comprises at least one window, the method comprising:
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directing light at the limb of the subject from the first optical emitter via a first light guide, the at least one window, and at least one non-air light transmissive material that at least partially covers the housing, wherein the least one non-air light transmissive material is configured to be in optical communication with the limb of the subject, and wherein the first light guide is positioned between the first optical emitter and the at least one non-air light transmissive material; directing light at the limb of the subject from the second optical emitter via a second light guide, the at least one window, and the at least one non-air light transmissive material, wherein the second light guide is positioned between the second optical emitter and the at least one non-air light transmissive material; collecting light from one or more locations of the limb via the at least one optical detector; sensing physical activity of the subject via the at least one motion sensor; and processing signals from the at least one motion sensor and signals from the at least one optical detector, via the at least one signal processor, to reduce motion artifacts associated with subject footstep movement and to determine a heart rate of the subject. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A monitoring device, comprising:
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at least one optical emitter comprising an emitting surface; at least one optical detector comprising a detecting surface; at least one housing supporting the at least one optical emitter and the at least one optical detector, wherein the at least one housing comprises at least one window in optical communication with the emitting surface of the at least one optical emitter, and at least one window in optical communication with the detecting surface of the at least one optical detector, and wherein the at least one housing is configured to be attached to a body of a subject; a light blocking member supported by the housing and positioned between the at least one optical emitter and the at least one optical detector, the light blocking member having a surface; and light transmissive material that covers at least a portion of the at least one housing including the at least one window in optical communication with the emitting surface of the at least one optical emitter, wherein the light transmissive material forms a light guiding region that is in optical communication with the at least one optical emitter via the at least one window and is configured to deliver light from the at least one optical emitter to the body of the subject via a portion thereof, and wherein the light guiding region, the light blocking member surface, and the at least one optical emitter emitting surface face substantially a same direction. - View Dependent Claims (46)
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Specification