Patent ID: 11944414
Assignee: VERILY LIFE SCIENCES LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A blood pressure monitoring device, the device comprising:
one or more sensors to measure a pressure due over a first time period, at least in part, to blood flow when the blood pressure monitoring device is worn; and
control circuitry coupled to the one or more sensors, the control circuitry including logic that when executed by the control circuitry causes the blood pressure monitoring device to perform operations including:
monitoring, over the first time period, the pressure applied to the one or more sensors;
generating a plurality of tactile waveforms in response to monitoring the pressure, wherein each of the plurality of tactile waveforms is representative of the pressure applied to a respective one of the one or more sensors over the first time period;
decomposing each of the plurality of tactile waveforms into a lowpass component and a bandpass component via one or more filters, wherein the bandpass component corresponds to pressure fluctuations over the first time period due, at least in part, to the blood flow, and wherein the lowpass component is representative of a baseline pressure corresponding to the pressure applied with at least some of the pressure fluctuations filtered out;
extracting features from at least one of the lowpass component or the bandpass component of each of the plurality of tactile waveforms; and
estimating blood pressure using a machine learning model to generate a fit of the features extracted from the at least one of the lowpass component or the bandpass component of each of the plurality of tactile waveforms.