Personal health device

摘要

An active pulse blood constituent monitor is disclosed. A sensor configured to provide an artificial excitation to a portion of the patient at a known frequency provides additional information in determining the physiological condition of the patient.

主权项

1. A system configured to determine one or more physiological parameters noninvasively using optical based techniques, the system comprising:
one or more light emitting devices configured to emit light at one or more wavelengths into a measurement site of a patient; one or more detectors configured to detect light emitted from the one or more light emitting devices after absorption by body tissue, and generate a detector signal, the one or more detectors comprising a submount configured to actuate relative to a support structure of the one or more detectors, the submount comprising a protrusion having a cylindrical shape; at least one motor configured to rotate at a known rate providing an agitation through the submount and the protrusion at a known frequency at the measurement site to generate a pulse wave which is transferred to the body tissue, the pulse wave generated at a frequency higher than at least two harmonics of a natural heart rate of the patient and lower than about 50 Hz, the motor comprising an actuator of an oval cylindrical shape including a shaft, wherein the motor is configured to actuate the submount with a force that drives that protrusion between about 0.1 mm and about 0.5 mm into the measurement site and wherein the protrusion maintains in contact with the measurement site during measurement; a processor configured to receive the detector signal, wherein the detector signal is indicative of the natural heart rate pulse of the patient and the generated pulse wave, the processor configured to determine at least one physiological parameter of the body tissue under measurement by compensating the detected information indicative of the natural heart rate pulse with information indicative of the generated pulse wave; and a user interface configured to receive and display the at least one physiological parameter of the body tissue under measurement determined by the processor.