US 12,453,483 B2
System and method for identifying blood pressure zones during autoregulation monitoring
Paul S. Addison, Edinburgh (GB); and Dean Montgomery, Edinburgh (GB)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Aug. 22, 2022, as Appl. No. 17/821,306.
Application 17/821,306 is a continuation of application No. 15/666,167, filed on Aug. 1, 2017, granted, now 11,419,506.
Claims priority of provisional application 62/378,026, filed on Aug. 22, 2016.
Claims priority of provisional application 62/378,022, filed on Aug. 22, 2016.
Prior Publication US 2022/0395182 A1, Dec. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/021 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01); A61B 5/1455 (2006.01); A61B 5/0205 (2006.01); A61B 5/026 (2006.01)
CPC A61B 5/021 (2013.01) [A61B 5/002 (2013.01); A61B 5/14546 (2013.01); A61B 5/14552 (2013.01); A61B 5/7246 (2013.01); A61B 5/7267 (2013.01); A61B 5/7278 (2013.01); A61B 5/7405 (2013.01); A61B 5/742 (2013.01); A61B 5/746 (2013.01); A61B 5/0205 (2013.01); A61B 5/0261 (2013.01); A61B 5/14553 (2013.01); A61B 5/7445 (2013.01); A61B 2505/03 (2013.01); A61B 2505/07 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A monitor comprising:
one or more processors configured to:
receive one or more physiological signals of a patient, wherein the one or more physiological signals comprise a first physiological signal indicating a blood pressure of the patient at a given time;
determine a set of blood pressure values based on the first physiological signal over a period of time;
determine autoregulation state values based on the one or more physiological signals;
generate an autoregulation profile of the patient comprising the autoregulation state values plotted on a vertical axis and corresponding blood pressure values plotted on a horizontal axis;
identify a blood pressure safe zone of the autoregulation profile by at least:
identifying a largest continuous positive region of the autoregulation profile; and
designating the largest continuous positive region as the blood pressure safe zone; and
instruct a display to display a visual indication of the blood pressure safe zone; and
a memory in communication with the one or more processors and configured to store at least an indication of the blood pressure safe zone.