METHODS AND SYSTEMS FOR PASSIVE PHOTOPLETHYSMOGRAPH SENSING
First Claim
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1. A method for passive physiological sensing, the method comprising:
- receiving at least one passive photonic signal from a subject using at least one photodetector; and
determining, using at least one processing device, physiological information of the subject based at least in part on the at least one passive photonic signal.
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Abstract
Systems and methods are provided for passive photoplethysmograph sensing. A patient monitoring system may provide active sensing, passive sensing, or both. In some cases, a patient monitor may determine whether to provide passive or active sensing. Passive photoplethysmograph sensing may be used to determine physiological information such as pulse rate, respiration rate, or other information. Passive photoplethysmograph sensing may allow for reduced power consumption relative to active sensing.
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Citations
21 Claims
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1. A method for passive physiological sensing, the method comprising:
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receiving at least one passive photonic signal from a subject using at least one photodetector; and determining, using at least one processing device, physiological information of the subject based at least in part on the at least one passive photonic signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A patient monitoring system comprising:
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at least one photodetector configured to receive at least one passive photonic signal; a signal input configured to receive at least one photodetector signal from the at least one photodetector; and at least one processing device coupled to the signal input, wherein the at least one processing device is configured to; determine physiological information based at least in part on the at least one photodetector signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A sensor for detecting a photonic signal from a patient, the sensor comprising:
at least one photodetector configured to receive at least one passive photonic signal, wherein the at least one passive photonic signal comprises electromagnetic radiation attenuated by the patient. - View Dependent Claims (18, 19, 20, 21)
Specification