Blood processing centrifuge
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United States of America Patent
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-
Dec 8, 1981
Grant Date -
N/A
app pub date -
Jun 16, 1980
filing date -
Jun 16, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus is disclosed for centrifugally separating blood into a first blood component, such as a plasma-rich component, and a second blood component, such as a plasma-poor component. This apparatus employs a centrifuge intended to be used immediately adjacent to a blood donor. A flexible displacement pouch having a 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 pouch and a flexible blood processing bag. Separated first blood component is expressed from the flexible blood bag by movement of the diaphragm and collected in a receiver container as the centrifuge rotor spins. A pressure plate is mounted against the support shoes. The plate has a mass sufficient to at least counterbalance the force exerted inwardly by the fluid in the blood processing bag during the separation process.
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