US 12,109,393 B2
Injection fluid quantification
Blaise D. Porter, Minneapolis, MN (US)
Assigned to ACIST Medical Systems, Inc., Eden Prairie, MN (US)
Filed by ACIST Medical Systems, Inc., Eden Prairie, MN (US)
Filed on Jun. 28, 2022, as Appl. No. 17/851,125.
Application 17/851,125 is a division of application No. 16/706,245, filed on Dec. 6, 2019, granted, now 11,400,214.
Prior Publication US 2022/0339356 A1, Oct. 27, 2022
Int. Cl. A61M 5/172 (2006.01); A61M 5/00 (2006.01); A61M 5/168 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 5/1723 (2013.01) [A61M 5/007 (2013.01); A61M 5/1684 (2013.01); A61M 25/0084 (2013.01); A61M 25/01 (2013.01); A61M 2025/0002 (2013.01); A61M 2205/3331 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for quantifying how much contrast fluid is injected into a patient by a powered fluid injector, comprising:
receiving, at a controller of the powered fluid injector, a command from a user to begin dispensing the contrast fluid;
determining, with the controller, whether a hemodynamic pressure signal is present from a pressure sensor positioned in fluidic connection with the patient's vasculature;
dispensing, with the powered fluid injector, a quantity of the contrast fluid in response to the command; and
determining, with the controller, an injection quantity representing an amount of the contrast fluid that is injected into the patient by adding, with the controller, the quantity of the contrast fluid to the injection quantity if the hemodynamic pressure signal is present in temporal proximity to when the quantity of the contrast fluid is dispensed and by
refraining from adding, with the controller, the quantity of the contrast fluid to the injection quantity if the hemodynamic pressure signal is not present in temporal proximity to when the quantity of the contrast fluid is dispensed.