US 12,064,541 B2
Method and system to protect kidneys during surgery
Andrew Halpert, Milford, MA (US); and Per Ulrich, Volketswil (CH)
Assigned to CARDIORENAL SYSTEMS, INC., Milford, MA (US)
Filed by CARDIORENAL SYSTEMS, INC., Milford, MA (US)
Filed on Dec. 30, 2020, as Appl. No. 17/138,215.
Application 17/138,215 is a division of application No. 15/712,764, filed on Sep. 22, 2017, granted, now 10,881,774.
Claims priority of provisional application 62/398,740, filed on Sep. 23, 2016.
Prior Publication US 2021/0113754 A1, Apr. 22, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/168 (2006.01); A61B 5/00 (2006.01); A61B 5/20 (2006.01); A61M 1/16 (2006.01); A61M 25/00 (2006.01); A61M 1/34 (2006.01); A61M 25/02 (2006.01)
CPC A61M 1/1603 (2014.02) [A61B 5/208 (2013.01); A61B 5/4836 (2013.01); A61M 5/16804 (2013.01); A61M 25/00 (2013.01); A61B 2560/0266 (2013.01); A61M 1/3441 (2013.01); A61M 2025/0213 (2013.01); A61M 2205/3334 (2013.01); A61M 2230/04 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method to protect kidneys of a patient undergoing open heart cardiac surgery patient including:
anesthetizing the patient with a general anesthetic;
administrating a diuretic to the patient to increase urine output of the patient during the open heart cardiac surgery;
intravenously infusing a liquid into the anesthetized patient during the open heart cardiac surgery;
monitoring a rate or amount of urine output of the anesthetized patient during the open heart cardiac surgery, and
automatically adjusting a rate or amount of the liquid infused into the anesthetized patient to achieve at least a minimum target urine output rate or amount during the open heart cardiac surgery.