US 11,833,281 B2
Pump cassette and methods for use in medical treatment system using a plurality of fluid lines
David W. McGill, Woodstock, GA (US); James D. Dale, Milton, FL (US); Simon C. Helmore, San Francisco, CA (US); Richard J. Lanigan, Concord, NH (US); Jason A. Demers, Manchester, NH (US); and Dean Kamen, Bedford, NH (US)
Assigned to DEKA Products Limited Partnership, Manchester, NH (US)
Filed by DEKA Products Limited Partnership, Manchester, NH (US)
Filed on Oct. 27, 2022, as Appl. No. 17/975,495.
Application 16/391,104 is a division of application No. 15/174,969, filed on Jun. 6, 2016, granted, now 10,265,451.
Application 15/174,969 is a division of application No. 12/864,378, granted, now 9,358,332, previously published as PCT/US2009/000436, filed on Jan. 23, 2009.
Application 17/975,495 is a continuation of application No. 16/507,302, filed on Jul. 10, 2019, granted, now 11,511,024.
Application 16/507,302 is a continuation of application No. 16/391,104, filed on Apr. 22, 2019, granted, now 11,478,577.
Claims priority of provisional application 61/058,469, filed on Jun. 3, 2008.
Claims priority of provisional application 61/011,967, filed on Jan. 23, 2008.
Prior Publication US 2023/0119157 A1, Apr. 20, 2023
Int. Cl. A61M 1/14 (2006.01); A61M 1/16 (2006.01); A61M 5/168 (2006.01); A61M 39/10 (2006.01); A61M 39/28 (2006.01); A61M 1/28 (2006.01); F04B 43/02 (2006.01); F04B 43/08 (2006.01); F04B 43/073 (2006.01); A61M 39/20 (2006.01)
CPC A61M 1/15 (2022.05) [A61M 1/14 (2013.01); A61M 1/155 (2022.05); A61M 1/156 (2022.05); A61M 1/1562 (2022.05); A61M 1/1565 (2022.05); A61M 1/16 (2013.01); A61M 5/16809 (2013.01); A61M 1/1601 (2014.02); A61M 1/166 (2014.02); A61M 1/1623 (2014.02); A61M 1/1629 (2014.02); A61M 1/1631 (2014.02); A61M 1/1694 (2013.01); A61M 1/28 (2013.01); A61M 1/281 (2014.02); A61M 1/282 (2014.02); A61M 1/288 (2014.02); A61M 5/16813 (2013.01); A61M 5/16827 (2013.01); A61M 39/105 (2013.01); A61M 39/1011 (2013.01); A61M 39/20 (2013.01); A61M 39/28 (2013.01); A61M 39/281 (2013.01); A61M 2039/1066 (2013.01); A61M 2205/12 (2013.01); A61M 2205/121 (2013.01); A61M 2205/122 (2013.01); A61M 2205/123 (2013.01); A61M 2205/127 (2013.01); A61M 2205/128 (2013.01); A61M 2205/13 (2013.01); A61M 2205/14 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3379 (2013.01); A61M 2205/36 (2013.01); A61M 2205/502 (2013.01); A61M 2209/08 (2013.01); F04B 43/02 (2013.01); F04B 43/073 (2013.01); F04B 43/08 (2013.01); F04B 43/086 (2013.01); Y02A 90/10 (2018.01)] 21 Claims
OG exemplary drawing
 
1. A fluid handling cassette for use with a fluid handling system of a medical infusion device, the cassette comprising:
a generally planar body having at least one pump chamber formed as a depression in a first side of the body and first and second common channels, the at least one pump chamber having a first valved port and a second valved port, the first valved port being directly connected to the first common channel and the second valved port being directly connected to the second common channel;
a membrane attached to the body and overlying the at least one pump chamber;
a patient line port arranged for connection to a patient line, the patient line port having a corresponding patient valve that is directly connected to the first common channel;
a drain line port arranged for connection to a drain line, the drain line port having a corresponding drain valve that is directly connected to the second common channel;
a heater bag port arranged for connection to a heater bag line, the heater bag port having a corresponding heater bag valve that is directly connected to the second common channel; and
a plurality of solution line ports each having a corresponding solution line valve that is directly connected to the first common channel.
 
14. A fluid handling cassette for use in a fluid handling system of a medical infusion device, the cassette comprising:
a generally planar body having at least one pump chamber formed as a depression in a first side of the body, the at least one pump chamber having a first valved port and a second valved port, the generally planar body comprising a first common channel connecting a plurality of valved solution ports and a valved patient port to the first valved port of the at least one pump chamber, and comprising a second common channel connecting a valved heater bag port and a valved drain port to the second valved port of the at least one pump chamber; and
a membrane attached to the body and overlying the at least one pump chamber.