US 11,944,732 B2
Dialysis system having localized disinfection
Sture Hobro, Lund (SE); Helena Jeppsson, Hörby (SE); and Björn Ericson, Lund (SE)
Assigned to Gambro Lundia AB, Lund (SE)
Appl. No. 16/980,129
Filed by GAMBRO LUNDIA AB, Lund (SE)
PCT Filed Mar. 7, 2019, PCT No. PCT/EP2019/055662
§ 371(c)(1), (2) Date Sep. 11, 2020,
PCT Pub. No. WO2019/175005, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 1850283-1 (SE), filed on Mar. 14, 2018.
Prior Publication US 2020/0405935 A1, Dec. 31, 2020
Int. Cl. A61M 1/16 (2006.01); A61L 2/18 (2006.01); A61L 2/24 (2006.01); A61L 101/36 (2006.01); B08B 9/032 (2006.01)
CPC A61M 1/169 (2013.01) [A61L 2/18 (2013.01); A61L 2/24 (2013.01); A61M 1/1672 (2014.02); B08B 9/0325 (2013.01); A61L 2101/36 (2020.08); A61L 2202/14 (2013.01); B08B 2209/032 (2013.01)] 24 Claims
OG exemplary drawing
 
20. An extracorporeal therapy disinfection method for a dialysis fluid circuit including dialysis fluid preparation structure configured to prepare a dialysis fluid for an extracorporeal therapy treatment, the dialysis fluid circuit including at least one filter for purifying the dialysis fluid, the method comprising:
disinfecting at least substantially all of the dialysis fluid circuit using a first disinfecting fluid;
rinsing the first disinfecting fluid to drain and filling at least substantially all of the dialysis fluid circuit with purified water;
causing a dose of a second disinfecting fluid sufficient to fill the at least one purifying filter to enter the dialysis fluid circuit;
using purified water to push the dose past at least one component of the dialysis fluid circuit for which it is desired to be free of the second disinfecting fluid, so as to deliver the dose to, and locate the dose at, an area of the dialysis fluid circuit having the at least one purifying filter; and
rinsing the second disinfecting fluid to drain.