US 11,813,390 B1
Extracorporeal blood filtering machine and methods
Vitaliy Gennad'yevich Epshteyn, Maple Grove, MN (US); Steven Daniel Sandoval, Eden Prairie, MN (US); Kalley Francis Berg, Lino Lakes, MN (US); and Franz Willems Ulrich, Minneapolis, MN (US)
Assigned to NUWELLIS, INC., Eden Prairie, MN (US)
Filed by Nuwellis, Inc., Eden Prairie, MN (US)
Filed on Feb. 20, 2023, as Appl. No. 18/171,637.
Application 18/171,637 is a continuation of application No. 18/171,612, filed on Feb. 20, 2023.
Int. Cl. A61M 1/34 (2006.01); A61M 1/14 (2006.01); A61M 1/16 (2006.01); A61M 1/36 (2006.01)
CPC A61M 1/341 (2014.02) [A61M 1/14 (2013.01); A61M 1/1601 (2014.02); A61M 1/1643 (2014.02); A61M 1/1694 (2013.01); A61M 1/342 (2013.01); A61M 1/3403 (2014.02); A61M 1/3627 (2013.01); A61M 1/3644 (2014.02); A61M 2202/0042 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3379 (2013.01); A61M 2205/3393 (2013.01); A61M 2205/50 (2013.01); A61M 2205/502 (2013.01); A61M 2205/505 (2013.01); A61M 2205/82 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/8262 (2013.01); A61M 2230/005 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An extracorporeal blood filtering system comprising:
an extracorporeal blood filtering machine comprising:
a blood circuit that includes:
a blood line comprising a blood inlet configured to receive blood from a patient and a blood outlet configured to return the blood to the patient,
a filter fluidly connected to the blood line between the blood inlet and the blood outlet, and
a blood pump configured to pump the blood from the blood inlet to the blood outlet through the filter, the filter configured to remove waste from the blood; and
an effluent circuit that includes:
an effluent line fluidly connected to the filter, the effluent line configured to receive the waste from the filter in the form of effluent, and
an effluent pump configured to pump the effluent from the filter through the effluent line into an effluent receptacle; and
a controller in communication with the extracorporeal blood filtering machine, the controller configured to operate the extracorporeal blood filtering machine in a stationary mode of operation and in a transport mode of operation,
wherein the blood pump is active in both the stationary mode of operation and the transport mode of operation, and
wherein the effluent pump is in an effluent pump stationary state in the stationary mode of operation and in an effluent pump transport state in the transport mode of operation.
 
20. A method comprising:
providing an extracorporeal blood filtering machine comprising:
a blood circuit that includes:
a blood line comprising a blood inlet configured to receive blood from a patient and a blood outlet configured to return the blood to the patient,
a filter fluidly connected to the blood line between the blood inlet and the blood outlet, and
a blood pump configured to pump the blood from the blood inlet to the blood outlet through the filter, the filter configured to remove waste from the blood;
an effluent circuit that includes:
an effluent line fluidly connected to the filter, the effluent line configured to receive the waste from the filter in the form of effluent, and
an effluent pump configured to pump the effluent from the filter through the effluent line into an effluent receptacle; and
a source fluid circuit that includes:
a source fluid line fluidly connected to a source fluid reservoir and to the blood circuit, and
a source fluid pump configured to pump source fluid from the source fluid reservoir through the source fluid line into the blood circuit; and
switching the extracorporeal blood filtering machine from a stationary mode of operation to a transport mode of operation, wherein:
the blood pump is active in both the stationary mode of operation and the transport mode of operation,
the effluent pump and the source fluid pump are each in a stationary state in the stationary mode of operation and in a transport state in the transport mode of operation.