Imperforate bowl: centrifugal separators – With condition responsive means
Patent
1980-11-10
1983-09-20
Coe, Philip R.
Imperforate bowl: centrifugal separators
With condition responsive means
494 10, 494 27, 494 44, B04B 912, B04B 1102
Patent
active
044050798
ABSTRACT:
Apparatus is disclosed for centrifugally separating blood into one or more components, such as a plasma-rich component, and a plasma-poor component. This apparatus employs a centrifuge intended to be used immediately adjacent to a blood donor. A flexible displacement container having a displacer fluid operated diaphragm is positioned within a blood processing chamber of the centrifuge rotor. The blood processing chamber comprises a pair of contoured support shoes which structurally supports the displacement container and a flexible blood processing container. Separated first blood component is expressed from the flexible processing blood container by movement of the diaphragm and is collected in a receiver container as the centrifuge rotor spins.
A reservoir for displacer fluid is mounted closer to the axis of rotation of the centrifuge than the flexible displacement container and in fluid communication therewith. The centrifugal force created by the spinning rotor creates a pressure differential between the reservoir and displacement container sufficient to pump the displacer fluid into said pouch, thus moving the diaphragm and expressing blood components from the blood processing bag.
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Coe Philip R.
Haemonetics Corporation
Simone Timothy F.
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