US 12,268,518 B2
Medical radar system for guiding cardiac resuscitation
Joe Paul Tupin, Jr., Los Altos, CA (US)
Assigned to Lifewave Biomedical, Inc., Los Altos, CA (US)
Filed by Lifewave Biomedical, Inc., Los Altos, CA (US)
Filed on Jun. 18, 2021, as Appl. No. 17/351,673.
Application 17/351,673 is a continuation of application No. 15/354,905, filed on Nov. 17, 2016, granted, now 11,039,785.
Application 15/354,905 is a continuation of application No. 14/404,386, abandoned, previously published as PCT/US2013/043337, filed on May 30, 2013.
Claims priority of provisional application 61/653,724, filed on May 31, 2012.
Prior Publication US 2021/0307685 A1, Oct. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/021 (2006.01); A61B 5/024 (2006.01); A61B 5/0507 (2021.01); A61B 5/11 (2006.01); A61H 31/00 (2006.01); A61N 1/39 (2006.01)
CPC A61B 5/4848 (2013.01) [A61B 5/0205 (2013.01); A61B 5/021 (2013.01); A61B 5/024 (2013.01); A61B 5/0507 (2013.01); A61B 5/11 (2013.01); A61B 5/7405 (2013.01); A61B 5/742 (2013.01); A61B 5/7455 (2013.01); A61H 31/005 (2013.01); A61H 31/007 (2013.01); A61N 1/3925 (2013.01); A61B 5/6823 (2013.01); A61B 2505/01 (2013.01); A61H 2201/5015 (2013.01); A61H 2201/5058 (2013.01); A61H 2201/5097 (2013.01); A61H 2203/0456 (2013.01); A61H 2205/084 (2013.01); A61H 2230/30 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A device for determining the return of spontaneous circulation (ROSC) when applying cardiopulmonary resuscitation (CPR), the device comprising:
a surface configured to be placed against a patient's chest;
an energy transmitter and energy receiver configured to emit energy from the surface into the patient;
a processor coupled to the energy receiver and energy transmitter and configured to evaluate blood pressure from energy returning from the patient after being emitted into the patient, wherein evaluating the blood pressure includes: detecting one or more motion artifacts by combining multiple range bins and calculating a standard deviation of motion rates against a preset threshold value, calculating a baseline depth and computing a cardiac pulse strength and recalculating the baseline depth when the one or more motion artifacts are detected; and
an output configured to indicate the ROSC based on the blood pressure evaluation of the processor.