Patent ID: 8273048
Filing Date: 2012-09-25
Classification: A61B,A61M

Abstract:
1. A system for facilitating the determination of hemodynamic parameters in a patient comprising: a. an extracorporeal circuit with a first end that connects to an arterial catheter of a patient and a second end connecting to a venous catheter of the patient; b. a fluid propelling apparatus to draw blood into the extracorporeal circuit from the first end; c. at least one injection port on the extracorporeal circuit for fluid access to the extracorporeal circuit; d. a dilution indicator bolus injector fluidly connected to the at least one injection port; e. a volume of dilution indicator in the dilution indicator bolus injector; and f. a flow volume accommodating case for diverting blood in the extracorporeal circuit while (i) the volume of the dilution indicator is being injected into the extracorporeal circuit at the at least one injection port (ii) blood is drawn into the extracorporeal circuit and (iii) an open flow path is maintained from the at least one injection port to the venous catheter, whereby the flow accommodating case includes a resilient member that will automatically expand and contract in response to pressure from the open flow path enabling pressure to be relieved from the open flow path.