Method and apparatus for the centrifugal washing of particles in a closed system

摘要

A rotary seal for a centrifuge particularly usable in the process of cell washing for transferring fluid between a rotary member and a stationary member of an apparatus adapted to contain fluids. The rotary seal member comprises a hollow first housing, and a second housing disposed in the first housing in spaced relation therewith to define an annular chamber. One of the housings is rotatable in concentric relation relative to the other housing. A plurality of sealing means are transversely mounted between the first and second housings to divide the annular chamber into several separate sealed portions, and conduits lead from the exterior of both the first and second housings to separate sealed portions of the annular chamber.