US 11,717,605 B2
System and method for delivering a fluid with a consistent total volumetric flowrate
Arthur Uber, III, Pittsburgh, PA (US)
Assigned to BAYER HEALTHCARE LLC, Whippany, NJ (US)
Filed by BAYER HEALTHCARE LLC, Whippany, NJ (US)
Filed on Feb. 17, 2021, as Appl. No. 17/177,954.
Application 17/177,954 is a division of application No. 16/346,219, granted, now 10,933,186, previously published as PCT/US2017/062728, filed on Nov. 21, 2017.
Claims priority of provisional application 62/425,312, filed on Nov. 22, 2016.
Prior Publication US 2021/0187186 A1, Jun. 24, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 5/00 (2006.01); A61M 5/168 (2006.01); A61M 5/14 (2006.01); A61M 5/145 (2006.01); A61M 5/142 (2006.01)
CPC A61M 5/007 (2013.01) [A61M 5/16827 (2013.01); A61M 5/1408 (2013.01); A61M 5/1452 (2013.01); A61M 2005/1403 (2013.01); A61M 2005/14208 (2013.01); A61M 2205/505 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for delivering a medical fluid, comprising:
delivering a fluid volume at a preselected total volumetric flowrate during a first duration of a fluid delivery procedure, wherein the fluid volume is comprised of a volumetric amount of a contrast agent and a volumetric amount of a flush fluid;
controllably varying the volumetric amount of the contrast agent in the fluid volume during the first duration of the fluid delivery procedure, wherein the volumetric amount of the contrast agent is controllably decreased at an exponentially decaying rate during at least a portion of the first duration; and
controllably varying the volumetric amount of the flush fluid in the fluid volume while the volumetric amount of the contrast agent is being controllably decreased so as to substantially maintain the preselected total volumetric flowrate throughout the first duration of the fluid delivery procedure,
wherein the delivery of the contrast agent is substantially completed during the first duration.