US 12,290,659 B2
Endovascular perfusion augmentation for critical care
Michael Austin Johnson, Sacramento, CA (US); Lucas Paul Neff, Decatur, GA (US); and Timothy Williams, Travis AFB, CA (US)
Assigned to THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US); and GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE, Wright-Patterson AFB, OH (US)
Filed by The Regents of the University of California, Oakland, CA (US); and Government of the United States as represented by the Secretary of the Air Force, Wright-Patterson AFB, OH (US)
Filed on Dec. 9, 2022, as Appl. No. 18/078,857.
Application 18/078,857 is a continuation of application No. 16/507,938, filed on Jul. 10, 2019, granted, now 11,602,592.
Application 16/507,938 is a continuation of application No. PCT/US2018/013413, filed on Jan. 11, 2018.
Claims priority of provisional application 62/445,551, filed on Jan. 12, 2017.
Prior Publication US 2023/0355866 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G08B 21/04 (2006.01); A61M 5/142 (2006.01); A61M 25/10 (2013.01)
CPC A61M 5/142 (2013.01) [A61M 25/10184 (2013.11); A61M 2005/14208 (2013.01); A61M 25/1011 (2013.01); A61M 25/10182 (2013.11); A61M 2205/05 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3584 (2013.01); A61M 2210/127 (2013.01); A61M 2230/06 (2013.01); A61M 2230/205 (2013.01); A61M 2230/208 (2013.01); A61M 2230/30 (2013.01); A61M 2230/42 (2013.01); A61M 2230/50 (2013.01)] 36 Claims
OG exemplary drawing
 
1. A blood flow regulation system comprising:
a catheter having a distal end and a proximal end;
an expandable device at the distal end of the catheter, the expandable device configured for placement within an aorta of a patient;
a first sensor disposed on the catheter proximal to the expandable device, and a second sensor disposed on the catheter distal to the expandable device, wherein the first and second sensors are configured to measure one or more physiological parameters of the patient; and
a processor operatively coupled to the first and second sensors, the processor configured to:
determine an amount of occlusion in the aorta provided by the expandable device based on the one or more measured physiological parameters; and
determine a working range of the expandable device based on the amount of occlusion, the working range comprising an upper set point and a lower set point.