US 12,089,958 B2
Personal health data collection
Christopher Elliott, St Sulpice (CH); Mark-Eric Jones, Vaud (CH); Mikhail Nagoga, Pully (CH); Shady Gawad, Lonay (CH); and Mark Bennett, Godalming (GB)
Assigned to LMD IP, LLC, Oklahoma City, OK (US)
Filed by LMD IP, LLC, Oklahoma City, OK (US)
Filed on Jun. 23, 2022, as Appl. No. 17/847,296.
Application 17/847,296 is a continuation of application No. 15/536,390, granted, now 11,412,987, previously published as PCT/EP2015/079888, filed on Dec. 15, 2015.
Claims priority of application No. 1422405 (GB), filed on Dec. 16, 2014; and application No. 1502989 (GB), filed on Feb. 23, 2015.
Prior Publication US 2022/0395231 A1, Dec. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/022 (2006.01); A61B 5/026 (2006.01); A61B 5/0295 (2006.01); A61B 5/1455 (2006.01); A61B 5/024 (2006.01); A61B 5/0245 (2006.01)
CPC A61B 5/6898 (2013.01) [A61B 5/022 (2013.01); A61B 5/02241 (2013.01); A61B 5/0261 (2013.01); A61B 5/0295 (2013.01); A61B 5/14551 (2013.01); A61B 5/6826 (2013.01); A61B 5/02438 (2013.01); A61B 5/0245 (2013.01); A61B 5/14552 (2013.01); A61B 2560/0228 (2013.01); A61B 2560/0406 (2013.01); A61B 2560/0425 (2013.01); A61B 2560/0462 (2013.01); A61B 2560/0468 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system, comprising:
a processor; and
a signal acquisition device (SAD), the SAD comprising:
a blood flow occlusion device having an open surface available to be pressed against a body part of the subject or to have a body part of the subject pressed against it;
a pressure sensor adapted to provide an electrical signal indicative of the pressure applied to or by the open surface;
an optical blood flow detecting device configured to detect the flow of blood in the body part of the subject when pressure is applied to or by the open surface; and
a device configured to: receive electrical signals from the pressure sensor and the optical blood flow detecting device and to transmit electrical signals indicative of the pressure and blood flow to the processor,
wherein the processor is configured to provide at least a measurement of the diastolic blood pressure (DBP) and systolic blood pressure (SBP) of the subject using a non-linear parametric function that predicts optical signals, and wherein the subject's DBP and SBP values are estimated by:
using the parametric functions to generate predicted optical signals from one or more candidate DBP and SBP values;
comparing the predicted optical signals to the measured optical signals; and
adjusting the candidate DBP and SBP values to find the candidate DBP and SBP values that minimize the difference between the predicted optical signals and the measured optical signals, and using those candidate DBP and SBP values as the estimate of the subject's DBP and SBP values.