US 12,070,297 B2
Photoplethysmography-based pulse wave analysis using a wearable device
Alexandros A. Pantelopoulos, El Cerrito, CA (US); and Andrew Larsen Axley, Bend, OR (US)
Assigned to FITBIT, INC., San Francisco, CA (US)
Filed by Fitbit, Inc., San Francisco, CA (US)
Filed on May 12, 2023, as Appl. No. 18/316,746.
Application 18/316,746 is a continuation of application No. 17/196,983, filed on Mar. 9, 2021, granted, now 11,684,281.
Application 17/196,983 is a continuation of application No. 15/406,501, filed on Jan. 13, 2017, granted, now 10,973,422, issued on Apr. 13, 2021.
Claims priority of provisional application 62/286,224, filed on Jan. 22, 2016.
Prior Publication US 2023/0277075 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 5/021 (2006.01); A61B 5/024 (2006.01); A61B 5/0205 (2006.01)
CPC A61B 5/02438 (2013.01) [A61B 5/0059 (2013.01); A61B 5/02007 (2013.01); A61B 5/02108 (2013.01); A61B 5/02416 (2013.01); A61B 5/6831 (2013.01); A61B 5/7203 (2013.01); A61B 5/7285 (2013.01); A61B 5/002 (2013.01); A61B 5/02055 (2013.01); A61B 5/4812 (2013.01); A61B 5/681 (2013.01); A61B 5/7225 (2013.01); A61B 5/7264 (2013.01); A61B 5/746 (2013.01); A61B 2503/10 (2013.01); A61B 2560/0462 (2013.01); A61B 2562/043 (2013.01); A61B 2562/16 (2013.01); A61B 2562/182 (2013.01); A61B 2562/185 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A biometric monitoring device for measuring blood pressure comprising:
a wearable fixing structure configured to attach to a user and/or a user's apparel;
a motion sensor operable to detect motion of the user of the biometric monitoring device;
a photoplethysmogram (PPG) sensor to generate PPG sensor data; and
one or more processors configured to:
obtain motion data from the motion sensor,
obtain the PPG sensor data from the PPG sensor,
obtain a plurality of pulse waveforms based, at least in part, on the PPG data, and
determine one or more features of a pulse waveform derived from the PPG sensor data, and/or transmit the PPG sensor data to a device configured to determine the one or more features of the pulse waveform from the PPG sensor data, the one or more features being related to blood pressure, via one of a plurality of trained models for determining the one or more features selected for the user based on at least the motion data to obtain the one or more features for the user as an output of the selected model.