Fluid handling – Systems – With flow control means for branched passages
Patent
1992-12-17
1994-05-17
Jenkins, Robert W.
Fluid handling
Systems
With flow control means for branched passages
738659, 251 7, 494 10, 494 37, B04B 1100, F16K 100
Patent
active
053119088
ABSTRACT:
A fluid flow apparatus includes a peristaltic pump rotor mounted to a deck module assembly. A disposable software set is provided which includes a cassette which has a primary flexible tube and a pump platen adjacent to which the primary flexible tube resides. Tubing with blood processing bags are coupled to the manifold along with the input port of the rotor of a disposable blood processing centrifuge bowl. The software set also includes a three-to-one manifold which connects the primary tube to a plurality of secondary flexible tubes. Fluid flow through the secondary flexible tubes is controlled by a plurality of pinch valves which pinch the secondary tubes closed against closing surfaces on the cassette. A deck module assembly allows a user to properly secure the cassette relative to the pump rotor and the pinch valves. A flat surface is provided on the manifold to couple sonic radiation into the manifold and sense the presence of fluids therein.
REFERENCES:
patent: 4416654 (1983-11-01), Schoendorfer
patent: 4425116 (1984-01-01), Bilstad
patent: 4428745 (1984-01-01), Williams
patent: 5082025 (1994-01-01), Vries
Barone David
Herrig Russell
Medberry Joseph M.
Plante Joseph R.
Volpini Paul M.
Haemonetics Corporation
Jenkins Robert W.
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