US 11,883,154 B2
Systems and methods for monitoring a person's position
Daniel Shen, Stanford, CA (US); Barrett Larson, Palo Alto, CA (US); and Mark Weckwerth, Pleasanton, CA (US)
Assigned to LEAF HEALTHCARE, INC., Pleasanton, CA (US)
Filed by Leaf Healthcare, Inc., Pleasanton, CA (US)
Filed on Apr. 29, 2022, as Appl. No. 17/732,763.
Application 17/732,763 is a continuation of application No. 17/168,816, filed on Feb. 5, 2021, granted, now 11,317,830.
Application 17/168,816 is a continuation of application No. 16/548,553, filed on Aug. 22, 2019, granted, now 10,912,491.
Application 16/548,553 is a continuation of application No. 15/423,665, filed on Feb. 3, 2017, granted, now 10,758,162.
Application 15/423,665 is a continuation in part of application No. 14/543,887, filed on Nov. 17, 2014, granted, now 9,728,061.
Application 15/423,665 is a continuation in part of application No. 13/070,189, filed on Mar. 23, 2011, granted, now 10,729,357.
Claims priority of provisional application 61/905,106, filed on Nov. 15, 2013.
Claims priority of provisional application 62/047,642, filed on Sep. 8, 2014.
Claims priority of provisional application 61/438,732, filed on Feb. 2, 2011.
Claims priority of provisional application 61/326,664, filed on Apr. 22, 2010.
Claims priority of provisional application 61/373,260, filed on Aug. 12, 2010.
Claims priority of provisional application 61/393,364, filed on Oct. 15, 2010.
Claims priority of provisional application 61/411,647, filed on Nov. 9, 2010.
Prior Publication US 2022/0248979 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/11 (2006.01); G08B 21/04 (2006.01)
CPC A61B 5/11 (2013.01) [A61B 5/1115 (2013.01); G08B 21/0446 (2013.01); G08B 21/0453 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for automated monitoring of a person's position, comprising:
a wearable sensor device including at least one sensor configured to generate sensor data regarding an orientation of the person;
memory storing a defined minimum orientation change threshold; and
at least one processor configured to:
monitor the orientation of the person over time based on the sensor data generated by the at least one sensor of the wearable sensor device;
determine a first orientation of the person based on the monitored orientation of the person;
increase a first orientation time counter associated with the first orientation while the person is positioned in the first orientation;
determine a magnitude of an orientation change of the person based on the monitored orientation of the person;
compare the magnitude of the orientation change to the defined minimum orientation change threshold;
if the magnitude of the orientation change does not meet the defined minimum orientation change threshold, continue to increase the first orientation time counter;
if the magnitude of orientation change meets or exceeds the defined minimum orientation change threshold, determine the person has turned from the first orientation and adjusting a control of the first orientation time counter; and
generate a notification based on the first orientation time counter.