US 12,078,162 B2
Liquid pumping cassettes and associated pressure distribution manifold and related methods
Kevin L. Grant, Litchfield, NH (US); Benjamin E. Colburn, Deerfield, NH (US); Joseph M. Rauseo, Manchester, NH (US); Benjamin J. Doucette, Nashua, NH (US); and Marc J. Gorayeb, Hampton, NH (US)
Assigned to DEKA Products Limited Partnership, Manchester, NH (US)
Filed by DEKA Products Limited Partnership, Manchester, NH (US)
Filed on Feb. 10, 2023, as Appl. No. 18/167,736.
Application 17/751,342 is a division of application No. 16/370,039, filed on Mar. 29, 2019, granted, now 11,371,498.
Application 18/167,736 is a continuation of application No. 17/751,342, filed on May 23, 2022, granted, now 11,598,329.
Claims priority of provisional application 62/745,807, filed on Oct. 15, 2018.
Claims priority of provisional application 62/650,820, filed on Mar. 30, 2018.
Prior Publication US 2023/0272791 A1, Aug. 31, 2023
Int. Cl. F04B 43/02 (2006.01); A61B 5/15 (2006.01); A61M 1/14 (2006.01); A61M 1/16 (2006.01); F04B 39/10 (2006.01); F04B 43/073 (2006.01)
CPC F04B 43/026 (2013.01) [A61B 5/1405 (2013.01); A61B 5/150221 (2013.01); A61M 1/1524 (2022.05); A61M 1/154 (2022.05); A61M 1/155 (2022.05); A61M 1/1561 (2022.05); A61M 1/1565 (2022.05); A61M 1/16 (2013.01); F04B 39/1066 (2013.01); F04B 43/073 (2013.01); A61M 1/15625 (2022.05); A61M 2205/128 (2013.01); A61M 2205/3331 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A liquid handling cassette comprising:
a midplate positioned between a first plate and a second plate, the midplate comprising a first side with a plurality of channel walls projecting from the first side, and a second side with a plurality of channel walls projecting from the second side, wherein the first plate contacts the channel walls on the first side of the midplate and the second plate contacts the channel walls on the second side of the midplate;
a plurality of edges each of which is perpendicular to the first side and coinciding with an outer edge of the midplate;
a pump station with a pump actuation chamber defined by a pump diaphragm and the first plate, said pump diaphragm seated against the first side of the midplate; and
a pump actuation channel defined by at least two channel walls of the plurality of channel walls on the first side of the midplate and fluidically connecting the pump actuation chamber with a cassette pump actuation port positioned at a first edge of the plurality of edges and located between the midplate and the first plate.