Patent ID: 11963799
Assignee: ITAMAR MEDICAL SPRY 2021, LIMITED PARTNERSHIP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 21:
22. A non-transitory computer readable medium storing executable computer program instructions, the computer program instructions comprising instructions that when executed cause a computer processor to:
receive one or more noise-corrupted optical signals from a wearable medical device, the one or more noise-corrupted optical signals being generated based on light reflected by tissue of a patient and associated with arterial blood pressure of the patient;
filter, by a filtering system, the one or more noise-corrupted optical signals to provide non-corrupted optical signals, wherein the filtering system comprises an adaptive filter configured to receive accelerometer signals indicative of motion from an accelerometer of the wearable medical device and apply the signals indicative of motion as a noise reference;
select a subset of waves of the non-corrupted optical signals over a predetermined amount of time;
obtain feature vectors from the subset of waves associated with the arterial blood pressure of the patient; and
input the obtained feature vectors into an empirical blood pressure calculation model to calculate one or more arterial blood pressure values.