US 12,433,980 B2
Optimising dialyser performance
Clive Buckberry, Warwick (GB); and Mark Wallace, Stourbridge (GB)
Assigned to QUANTA DIALYSIS TECHNOLOGIES LIMITED, Warwick (GB)
Appl. No. 17/916,517
Filed by Quanta Dialysis Technologies Ltd., Alcester (GB)
PCT Filed Mar. 30, 2021, PCT No. PCT/GB2021/050791
§ 371(c)(1), (2) Date Sep. 30, 2022,
PCT Pub. No. WO2021/198678, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2004738 (GB), filed on Mar. 31, 2020.
Prior Publication US 2023/0211061 A1, Jul. 6, 2023
Int. Cl. A61M 1/16 (2006.01); A61M 1/14 (2006.01); A61M 1/26 (2006.01); B01D 61/24 (2006.01); B01D 61/30 (2006.01); B01D 65/02 (2006.01)
CPC A61M 1/1688 (2014.02) [A61M 1/155 (2022.05); A61M 1/156 (2022.05); A61M 1/1565 (2022.05); A61M 1/1603 (2014.02); A61M 1/1694 (2013.01); A61M 1/26 (2013.01); B01D 61/243 (2013.01); B01D 61/30 (2013.01); B01D 65/02 (2013.01); B01D 2313/18 (2013.01); B01D 2313/243 (2013.01); B01D 2321/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A dialysis system comprising:
a dialyser including a semi-permeable membrane;
an inlet pump assembly operable to deliver a first volume of dialysis fluid from a dialysis fluid source to the dialyser in an inlet pump cycle having a dialysis fluid delivery stroke;
an outlet pump assembly operable to remove a second volume of dialysis fluid from the dialyser and deliver the second volume of dialysis fluid away from the dialyser in an outlet pump cycle having a dialysis fluid removal stroke; and
a control system configured to operate the inlet pump assembly in a plurality of instances of the inlet pump cycle, and operate the outlet pump assembly in a plurality of instances of the outlet pump cycle, wherein each instance of the inlet pump cycle includes a corresponding instance of the outlet pump cycle, wherein:
the control system is further configured to operate the inlet pump assembly to shuttle the respective first volume of dialysis fluid of one of the plurality of instances of the inlet pump cycle between the inlet pump assembly and the dialyser one or more times to agitate a surface of the semi-permeable membrane of the dialyser or
to operate the outlet pump assembly to shuttle the respective second volume of dialysis fluid of one of the plurality of instances of the outlet pump cycle between the outlet pump assembly and the dialyser one or more times to agitate a surface of the semi-permeable membrane of the dialyser, and
the control system is further configured to synchronise the inlet pump assembly and outlet pump assembly to shuttle the first volume of dialysis fluid between the inlet pump assembly and the outlet pump assembly via the dialyser one or more times.