US 12,245,842 B2
Detainee health alert device
Malik R. Little, Glen Burnie, MD (US)
Assigned to The Johns Hopkins University, Baltimore, MD (US)
Filed by The Johns Hopkins University, Baltimore, MD (US)
Filed on Sep. 17, 2021, as Appl. No. 17/477,785.
Claims priority of provisional application 63/158,586, filed on Mar. 9, 2021.
Prior Publication US 2022/0287576 A1, Sep. 15, 2022
Int. Cl. A61B 5/0205 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); A61B 5/145 (2006.01); G16H 50/30 (2018.01)
CPC A61B 5/02055 (2013.01) [A61B 5/0004 (2013.01); A61B 5/024 (2013.01); A61B 5/14532 (2013.01); A61B 5/14542 (2013.01); A61B 5/681 (2013.01); A61B 5/7405 (2013.01); A61B 5/746 (2013.01); G16H 50/30 (2018.01); A61B 2560/02 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system comprising:
an alert device comprising an alert device display; and
a detainee health alert device comprising:
an application detection sensor configured to indicate that detainee health alert device has been applied to a detainee;
a physiological sensor configured to capture physiological data of the detainee; and
processing circuitry, wherein the processing circuitry is configured to:
receive, from the application detection sensor, an indication that the detainee health alert has been applied to the detainee;
repeatedly receive the physiological data from the physiological sensor, the physiological data comprising physiological data parameters, the physiological data parameters comprising heart rate data and blood oxygen data;
calculate a health metric parameter based on a combination of the heart rate data and blood oxygen data;
determine that the health metric parameter has reached steady-state in response to
a passage of a threshold amount of time since the detainee health alert device has been applied, or
a slope of a series of health metric parameters is constant relative to one physiological data parameter:
after the health metric parameter has reached steady-state, determine a health metric baseline based on a series of health metric parameters determined over a baseline determination duration that occurs after the health metric parameter has reach steady-state;
determine a first risk alert threshold and a second risk alert threshold based on the health metric baseline;
determine a health metric delta based on newly received physiological data and the health metric baseline;
in response to the health metric delta exceeding the first risk alert threshold, transmit a first risk alert communication to the alert device to cause the alert device to display a first risk alert on the alert device display; and
in response to the health metric delta exceeding the second risk alert threshold, transmit a second risk alert communication to the alert device to cause the alert device to display a second risk alert on the alert device display.