US 12,133,946 B2
Durable, multi-use peritoneal dialysis cycler using disinfection
Ramkumar Jeyachandran, Bangalore (IN)
Assigned to Baxter International Inc., Deerfield, IL (US); and Baxter Healthcare SA, Glattpark (CH)
Appl. No. 18/269,850
Filed by BAXTER INTERNATIONAL INC., Deerfield, IL (US); and BAXTER HEALTHCARE SA, Glattpark (CH)
PCT Filed Dec. 8, 2021, PCT No. PCT/US2021/062363
§ 371(c)(1), (2) Date Jun. 27, 2023,
PCT Pub. No. WO2022/146638, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 202041056858 (IN), filed on Dec. 29, 2020.
Prior Publication US 2024/0269362 A1, Aug. 15, 2024
Int. Cl. A61M 1/28 (2006.01); A61M 1/16 (2006.01)
CPC A61M 1/282 (2014.02) [A61M 1/168 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A peritoneal dialysis (“PD”) system comprising:
a dialysis fluid pump including a pump actuator and a dialysis fluid contacting portion actuated by the pump actuator;
a fresh dialysis fluid valve located upstream of the dialysis fluid pump, the fresh dialysis fluid valve including a fresh valve actuator and a dialysis fluid contacting portion actuated by the fresh valve actuator;
a patient line valve located downstream from the dialysis fluid pump, the patient line valve including a patient line valve actuator and a dialysis fluid contacting portion actuated by the patient line valve actuator;
a drain valve positioned and arranged to receive used dialysis fluid from a patient, the drain valve including a drain valve actuator and a dialysis fluid contacting portion;
first and second dialysis fluid sources;
a disinfection source;
a purified water source; and
a control unit configured to
(i) cause the pump actuator to actuate, and the fresh valve actuator, the patient line valve actuator and the drain valve actuator to actuate or not actuate their respective dialysis fluid contacting portions according to a programmed fill sequence to perform a PD fill phase using the first or second dialysis fluid sources,
(ii) cause the pump actuator to actuate, and the fresh valve actuator, the patient line valve actuator and the drain valve actuator to actuate or not actuate their respective dialysis fluid contacting portions according to a programmed drain sequence to perform a PD drain phase, and
(iii) after actions (i) and (ii), or after actions (i) and (ii) are repeated at least one time, and with the first and second dialysis fluid sources replaced by the disinfection source and the purified water source, cause the pump actuator to actuate, and the fresh valve actuator, the patient line valve actuator and the drain valve actuator to actuate or not actuate their respective dialysis fluid contacting portions according to a programmed disinfection sequence to disinfect the respective dialysis fluid contacting portions of each of the pump actuator, the fresh valve actuator, the patient line valve actuator and the drain valve actuator using disinfectant from the disinfection source, after which the purified water source is used to rinse the disinfectant.