US 11,904,078 B2
Hemodialysis system with variable dialysate flow rate
Brandon Borillo, Irvine, CA (US); Tzu Tung Chen, Irvine, CA (US); and Clayton Poppe, Irvine, CA (US)
Assigned to DIALITY INC., Irvine, CA (US)
Filed by DIALITY INC., Irvine, CA (US)
Filed on May 28, 2021, as Appl. No. 17/334,393.
Prior Publication US 2022/0387684 A1, Dec. 8, 2022
Int. Cl. A61M 1/16 (2006.01); A61M 1/38 (2006.01); B01D 46/00 (2022.01)
CPC A61M 1/1647 (2014.02) [A61M 1/1672 (2014.02); A61M 1/38 (2013.01); B01D 46/0036 (2013.01); A61M 2205/3334 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A hemodialysis system with variable flow rate comprising:
a machine housing;
an arterial blood line for connecting to a patient's artery for collecting blood from a patient;
a venous blood line for connecting to the patient's vein for returning the blood to the patient;
a dialyzer;
a blood flow path connected to said arterial blood line and said venous blood line for transporting the blood from the patient to said dialyzer and back to the patient;
a reservoir for storing dialysate;
a dialysate flow path, isolated from the blood flow path, connected to said reservoir and said dialyzer for transporting the dialysate from said reservoir to said dialyzer;
at least one dialysate pump for pumping the dialysate through said dialysate flow path;
a blood pump for pumping the blood through said blood flow path;
a dialysate flow sensor in said dialysate flow path which measures a flow rate of the dialysate through said dialysate flow path;
a control processor connected to said dialysate flow sensor and said at least one dialysate pump, said control processor possessing memory for storing a patient treatment plan by which the patient is treated, said patient treatment plan includes a plurality of different dialysate flow rates during a patient's treatment wherein the plurality of different dialysate flow rates decrease over a time period “T(total)” for treating the patient.