US 12,220,507 B2
Blood treatment systems and methods
Dirk A. van der Merwe, Canterbury, NH (US); Kevin L. Grant, Litchfield, NH (US); Michael J. Wilt, Windham, NH (US); Todd A. Ballantyne, Amherst, NH (US); Jonathan P. Rosse, Amherst, NH (US); Catharine N. Flynn, Manchester, NH (US); and Brian K. Yee, Manchester, NH (US)
Assigned to DEKA Products Limited Partnership, Manchester, NH (US)
Filed by DEKA Products Limited Partnership, Manchester, NH (US)
Filed on Feb. 21, 2024, as Appl. No. 18/583,836.
Application 18/583,836 is a continuation of application No. 18/446,323, filed on Aug. 8, 2023, abandoned.
Application 18/446,323 is a continuation of application No. 17/393,268, filed on Aug. 3, 2021, granted, now 11,779,689.
Application 17/393,268 is a continuation of application No. 15/423,717, filed on Feb. 3, 2017, granted, now 11,103,625.
Application 15/423,717 is a continuation of application No. 13/480,444, filed on May 24, 2012, granted, now 9,717,834.
Claims priority of provisional application 61/498,394, filed on Jun. 17, 2011.
Claims priority of provisional application 61/489,544, filed on May 24, 2011.
Prior Publication US 2024/0269358 A1, Aug. 15, 2024
Int. Cl. A61M 1/16 (2006.01); A61K 33/00 (2006.01); A61M 1/14 (2006.01); A61M 1/26 (2006.01); A61M 1/30 (2006.01); A61M 1/34 (2006.01); A61M 1/36 (2006.01); A61M 5/172 (2006.01); A61M 60/113 (2021.01); A61M 60/268 (2021.01); A61M 60/37 (2021.01); A61M 60/427 (2021.01); A61M 60/43 (2021.01); A61M 60/837 (2021.01); A61M 60/847 (2021.01); A61M 60/851 (2021.01); G16H 20/40 (2018.01); A61M 60/892 (2021.01); A61M 60/894 (2021.01)
CPC A61M 1/1601 (2014.02) [A61K 33/00 (2013.01); A61M 1/14 (2013.01); A61M 1/1524 (2022.05); A61M 1/154 (2022.05); A61M 1/155 (2022.05); A61M 1/156 (2022.05); A61M 1/15625 (2022.05); A61M 1/15632 (2022.05); A61M 1/1565 (2022.05); A61M 1/16 (2013.01); A61M 1/1605 (2014.02); A61M 1/1613 (2014.02); A61M 1/1619 (2014.02); A61M 1/1654 (2013.01); A61M 1/1656 (2013.01); A61M 1/1658 (2013.01); A61M 1/166 (2014.02); A61M 1/1664 (2014.02); A61M 1/1666 (2014.02); A61M 1/1668 (2014.02); A61M 1/1692 (2013.01); A61M 1/267 (2014.02); A61M 1/301 (2014.02); A61M 1/34 (2013.01); A61M 1/341 (2014.02); A61M 1/3413 (2013.01); A61M 1/3609 (2014.02); A61M 1/3621 (2013.01); A61M 1/362227 (2022.05); A61M 1/36224 (2022.05); A61M 1/36225 (2022.05); A61M 1/36226 (2022.05); A61M 1/362264 (2022.05); A61M 1/362265 (2022.05); A61M 1/362266 (2022.05); A61M 1/3627 (2013.01); A61M 1/3672 (2013.01); A61M 5/172 (2013.01); A61M 60/113 (2021.01); A61M 60/268 (2021.01); A61M 60/37 (2021.01); A61M 60/427 (2021.01); A61M 60/43 (2021.01); A61M 60/837 (2021.01); A61M 60/847 (2021.01); A61M 60/851 (2021.01); G16H 20/40 (2018.01); A61M 1/1561 (2022.05); A61M 1/362261 (2022.05); A61M 1/3638 (2014.02); A61M 60/892 (2021.01); A61M 60/894 (2021.01); A61M 2205/12 (2013.01); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3313 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3324 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3379 (2013.01); A61M 2205/3569 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/50 (2013.01); A61M 2205/502 (2013.01); A61M 2205/52 (2013.01); A61M 2230/65 (2013.01); Y02A 50/30 (2018.01); Y02A 90/10 (2018.01)] 15 Claims
OG exemplary drawing
 
1. A system for cleaning a fluid flowpath connected to a pair of diaphragm pumps comprising:
a first and a second diaphragm pump, each pump comprising a pumping chamber separated from an actuation chamber by a flexible diaphragm;
each pump actuation chamber selectively connectable by action of a controller to a source of positive or negative pressure;
a first fluid flowpath connecting an inlet of the first pump through a first inlet valve with an inlet of the second pump through a second inlet valve, and a second fluid flowpath connecting an outlet of the first pump through a first outlet valve with an outlet of the second pump through a second outlet valve;
the inlet and outlet valves each comprising a valve selectively connectable by action of the controller to the source of positive or negative pressure;
wherein the controller is configured to direct an application of negative pressure to the diaphragm of the first pump when emptied of fluid and an application of positive pressure to the diaphragm of the second pump when filled with fluid while the first and second inlet valves are open and the first and second outlet valves are closed to clean the first fluid flowpath OR while the first and second inlet valves are closed and the first and second outlet valves are open to clean the second fluid flowpath.