APPARATUS AND METHODS FOR MONITORING PHYSIOLOGICAL DATA DURING ENVIRONMENTAL INTERFERENCE
First Claim
Patent Images
1. A monitoring apparatus, comprising:
- a housing configured to be attached to a body of a subject; and
a sensor module disposed within the housing, the sensor module comprising;
an energy emitter that directs modulated energy at a target region of the subject;
a detector that detects an energy response signal from the subject, wherein the energy response signal is associated with a physiological condition of the subject;
a filter that attenuates time-varying environmental interference from the energy response signal, wherein the time-varying environmental interference is caused by one or more of the following;
sunlight, ambient light, airflow, and temperature; and
at least one processor that controls operations of the energy emitter, detector, and/or filter.
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Abstract
Apparatus and methods for attenuating environmental interference are described. A wearable monitoring apparatus includes a housing configured to be attached to the body of a subject and a sensor module that includes an energy emitter that directs energy at a target region of the subject, a detector that detects an energy response signal—or physiological condition—from the subject, a filter that removes time-varying environmental interference from the energy response signal, and at least one processor that controls operations of the energy emitter, detector, and filter.
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Citations
52 Claims
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1. A monitoring apparatus, comprising:
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a housing configured to be attached to a body of a subject; and a sensor module disposed within the housing, the sensor module comprising; an energy emitter that directs modulated energy at a target region of the subject; a detector that detects an energy response signal from the subject, wherein the energy response signal is associated with a physiological condition of the subject; a filter that attenuates time-varying environmental interference from the energy response signal, wherein the time-varying environmental interference is caused by one or more of the following;
sunlight, ambient light, airflow, and temperature; andat least one processor that controls operations of the energy emitter, detector, and/or filter. - 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)
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26. A method of monitoring at least one physiological property of a subject, comprising:
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directing modulated energy at a target region of the subject via an energy emitter; obtaining a first energy response signal from the subject when the emitter is on; obtaining a second energy response signal from the subject when the emitter is off; and processing the first and second energy response signals via a filter to produce a processed energy response signal that is associated with a physiological condition of the subject, wherein the filter attenuates time-varying environmental interference caused by one or more of the following;
sunlight, ambient light, airflow, and temperature. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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34. A sensor module, comprising:
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a printed circuit board (PCB) having opposite first and second sides; an optical emitter attached to at least one side of the PCB; an optical detector attached to the PCB adjacent to the optical emitter; an optical filter overlying at least a portion of the optical detector, wherein the optical filter is configured to attenuate light at one or more selected wavelengths; and light-opaque material adjacent to the optical detector that prevents ambient light from interfering with the optical detector. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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42. A wearable monitoring apparatus, comprising:
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a substrate configured to be attached to a body of a subject; and a sensor module attached to the substrate, the sensor module comprising; an energy emitter that directs modulated energy at a target region of the subject; a detector that detects an energy response signal from the subject, wherein the energy response signal is associated with a physiological condition of the subject; a filter that attenuates time-varying environmental interference from the energy response signal, wherein the time-varying environmental interference is caused by one or more of the following;
sunlight, ambient light, airflow, and temperature; andat least one processor that controls operations of the energy emitter, detector, and/or filter. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification