SYSTEMS AND METHODS FOR PPG SENSORS INCORPORATING EKG SENSORS
First Claim
1. A sensor unit for detecting signals related to physiological characteristics of a subject, the sensor unit comprising:
- a support structure;
a first sensor capable of detecting a photoplethysmograph (PPG) signal, wherein the first sensor is physically coupled to the support structure;
a second sensor capable of detecting an electrocardiographic (EKG) signal, wherein the second sensor is physically coupled to the support structure; and
an interface coupled to the first sensor and the second sensor, wherein the interface is capable of providing the detected PPG signal and the detected EKG signal to at least one electronic monitor.
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Accused Products
Abstract
Techniques and structures are disclosed for using photoplethysmograph (PPG) and electrocardiographic (EKG)-based readings of a subject to determine one or more physiological characteristics of the subject. In an arrangement, a combined PPG-EKG sensor unit may be used to detect both PPG and EKG signals of the subject. The sensor unit may include a PPG sensor, an EKG sensor, and a support structure for connecting or fastening the sensor unit to the subject. The detected readings may be provided to an electronic monitor. In an arrangement, a PPG-EKG monitoring system, including the electronic monitor, may be used to determine the physiological parameters of the subject. The monitoring system may first determine an auxiliary parameter based at least in part on the EKG signal, and then compute the one or more physiological characteristics of the subject based at least in part on both the PPG signal and the auxiliary parameter.
39 Citations
20 Claims
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1. A sensor unit for detecting signals related to physiological characteristics of a subject, the sensor unit comprising:
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a support structure; a first sensor capable of detecting a photoplethysmograph (PPG) signal, wherein the first sensor is physically coupled to the support structure; a second sensor capable of detecting an electrocardiographic (EKG) signal, wherein the second sensor is physically coupled to the support structure; and an interface coupled to the first sensor and the second sensor, wherein the interface is capable of providing the detected PPG signal and the detected EKG signal to at least one electronic monitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A monitoring system for determining one or more physiological parameters of a subject, the system comprising:
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a sensor unit, the sensor unit comprising; a support structure; a first sensor capable of detecting a photoplethysmograph (PPG) signal, wherein the first sensor is physically coupled to the support structure; a second sensor capable of detecting an electrocardiographic (EKG) signal, wherein the second sensor is physically coupled to the support structure; and an interface coupled to the first sensor and the second sensor, wherein the interface is capable of providing the detected PPG signal and the detected EKG signal to at least one electronic monitor; and a processor coupled to the at least one electronic monitor, wherein the processor is capable of; determining the one or more physiological parameters of the subject based, at least in part, on the detected PPG signal; determining an auxiliary parameter based, at least in part, on the detected EKG signal; and outputting the one or more physiological parameters. - View Dependent Claims (12, 13, 14, 15)
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16. A method for determining one or more physiological parameters of a subject, the method comprising:
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detecting a photoplethysmograph (PPG) signal; detecting an electrocardiographic (EKG) signal; providing the detected PPG signal and the detected EKG signal to at least one electronic monitor; determining the one or more physiological parameters of the subject based, at least in part, on the detected PPG signal; determining an auxiliary parameter based, at least in part, on the detected EKG signal; and outputting the one or more physiological parameters. - View Dependent Claims (17, 18, 19, 20)
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Specification