US 12,350,413 B2
Fluid handling systems and methods
Kai-Uwe Ritter, Bethlehem, PA (US)
Assigned to B. BRAUN MEDICAL INC., Bethlehem, PA (US)
Filed by B. BRAUN MEDICAL INC., Bethlehem, PA (US)
Filed on Jun. 22, 2022, as Appl. No. 17/846,185.
Prior Publication US 2023/0414849 A1, Dec. 28, 2023
Int. Cl. A61M 1/16 (2006.01); A61M 1/36 (2006.01); A61M 39/22 (2006.01); A61M 39/28 (2006.01)
CPC A61M 1/1621 (2014.02) [A61M 1/3649 (2014.02); A61M 39/223 (2013.01); A61M 39/28 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A dialysis system comprising:
a fluid source;
a dialyzer having a venous port and an arterial port;
a pump configured to engage tubing lines;
a venous line fluidly coupled to the venous port of the dialyzer, an arterial line engaging the pump and fluidly coupled to the arterial port of the dialyzer on a first engagement side of the pump;
a bridge line coupled between the venous line and the arterial line on a second engagement side of the pump;
a fluid source line coupled between the fluid source and a fluid port of the arterial line on the second engagement side of the pump between the bridge line and the pump;
a memory configured to store program instructions; and
a processor coupled to the memory, the processor configured to process the program instructions to:
configure the dialysis system for aseptic blood return to a patient, when the patient is coupled to a patient venous access and a patient arterial access of the arterial line, by blocking the arterial line between the bridge line and the fluid port, unblocking the bridge line, and unblocking the fluid source line; and
operate the pump in a forward direction while the dialysis system is configured for aseptic blood return to produce fluid flow from the fluid source, through the dialyzer and through the bridge line, to force venous blood in the venous line toward the patient venous access and arterial blood in the arterial line toward the patient arterial access.