Apparatus for the precipitation of human blood plasma components

An apparatus for the continuous precipitation of human blood plasma components comprising:

• individual supply containers for blood plasma, a precipitation agent and a buffer solution,
• a precipitation vessel,
• means for conveying the blood plasma and the precipitation agent from the respective supply containers to said precipitation vessel and including means for combining the blood plasma and precipitating agent immediately upstream of said precipitation vessel,
• means for conveying the buffer solution from its respective supply container to said precipitation vessel,
• means for cooling said precipitation vessel and the contents thereof,
• means for causing turbulence in said precipitation vessel,
• a flow passageway connecting said precipitation vessel and centrifuge means, said flow passageway being so constructed as to permit substantially laminar flow of fluid therethrough,
• means for selectively changing the residence time of fluid in said flow passageway by varying the length of said flow passageway through which fluid is caused to flow, and
• means for removing the centrifugate from said centrifuge means.