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;
a printed circuit board (PCB);
a detector attached to the PCB that detects an energy response signal from the subject in response to modulated energy directed upon a target region of 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 from a non-physiological source external to the body of the subject and includes one or more of the following;
sunlight, ambient light, airflow, and temperature; and
at least one processor that controls operations of the detector and/or filter, and that is configured to process the detected energy response signal and produce an extracted energy response signal.
0 Assignments
0 Petitions
Accused Products
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.
57 Citations
22 Claims
-
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; a printed circuit board (PCB); a detector attached to the PCB that detects an energy response signal from the subject in response to modulated energy directed upon a target region of 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 from a non-physiological source external to the body of the subject and includes one or more of the following;
sunlight, ambient light, airflow, and temperature; andat least one processor that controls operations of the detector and/or filter, and that is configured to process the detected energy response signal and produce an extracted energy response signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of monitoring at least one physiological property of a subject, comprising:
-
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 from a non-physiological source external to the body of the subject and includes one or more of the following;
sunlight, ambient light, airflow, and temperature. - View Dependent Claims (9, 10, 11, 12, 13)
-
-
14. A sensor module, comprising:
-
a printed circuit board (PCB); an optical emitter attached to 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 (15, 16, 17, 18, 19)
-
-
20. A wearable monitoring apparatus, comprising:
-
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 adjacent to the energy emitter 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 from a non-physiological source external to the body of the subject and includes 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, and wherein the at least one processor is configured to process the detected energy response signal and produce an extracted energy response signal.
-
-
21. A method of monitoring at least one physiological property of a subject, comprising:
-
directing modulated energy at a target region of the subject via an energy emitter; obtaining, via an energy detector, a first energy response signal from the subject when the emitter is on; obtaining, via the energy detector, a second energy response signal from the subject when the emitter is off; detecting motion information from the subject; 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 from a non-physiological source external to the body of the subject and includes one or more of the following;
sunlight, ambient light, airflow, and temperature; andprocessing the motion information from the subject to attenuate motion artifacts from the processed energy response signal. - View Dependent Claims (22)
-
Specification