US 12,251,504 B2
Dialysis systems, devices and methods
Clive Buckberry, Warwickshire (GB)
Assigned to QUANTA DIALYSIS TECHNOLOGIES LTD., Warwickshire (GB)
Filed by QUANTA DIALYSIS TECHNOLOGIES, LTD., Warwickshire (GB)
Filed on Jun. 26, 2018, as Appl. No. 16/019,211.
Claims priority of application No. 1710546 (GB), filed on Jun. 30, 2017.
Prior Publication US 2019/0001042 A1, Jan. 3, 2019
Int. Cl. A61M 1/16 (2006.01); A61M 1/14 (2006.01); A61M 1/30 (2006.01); A61M 1/34 (2006.01); A61M 1/36 (2006.01)
CPC A61M 1/1672 (2014.02) [A61M 1/154 (2022.05); A61M 1/155 (2022.05); A61M 1/15625 (2022.05); A61M 1/1565 (2022.05); A61M 1/1601 (2014.02); A61M 1/1635 (2014.02); A61M 1/1656 (2013.01); A61M 1/30 (2013.01); A61M 1/3413 (2013.01); A61M 1/3646 (2014.02); A61M 1/365 (2014.02); A61M 1/168 (2013.01); A61M 2205/123 (2013.01); A61M 2205/126 (2013.01); A61M 2205/50 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method of operating a dialysis system including
a blood side,
a dialysate side containing a dialysate fluid circuit and a blood accumulator chamber, the dialysate fluid circuit comprising a dialysate input pump having a dialysate input pump chamber, and a dialysate output pump having a dialysate output pump chamber,
a dialyser comprising a fluid chamber, a dialysate inlet, a dialysate outlet, a blood inlet, and a blood outlet,
a blood circuit comprising a blood pump, the blood accumulator chamber, and a blood return line valve arranged on a blood return line downstream of the dialyser or at the blood outlet of the dialyser, and
a blood filter arranged within the fluid chamber and dividing the dialysis system into the blood side and the dialysate side, the method comprising:
closing the blood return line valve; and
with the blood return line valve closed, operating the dialysate outlet pump or the blood pump to create a pressure differential across the blood filter, the pressure differential forcing blood plasma across the blood filter from the blood side to the dialysate side and into the blood accumulator chamber.