Apparatus and method for separating fluid into components thereof
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United States of America Patent
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Sep 6, 1983
Grant Date -
N/A
app pub date -
Jul 9, 1981
filing date -
Jul 9, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved method and apparatus are disclosed for sealing the outlet port of a flexible blood-processing bag after a separated first blood component has been expressed therefrom. The improvements relate to the use of a valve contained within the flexible blood-processing bag and responsive to the difference in specific gravities between first blood component and second blood component. For example, the valve may comprise a stopper ball having a specific gravity which allows it to float at the interface between first and second blood component.
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