Patent ID: 6835171
Filing Date: 2004-12-28
Classification: B04B

Abstract:
A centrifuge for the separation and/or treatment of cells in a substantially annular or partially annular separation bag connected by at least one tube to at least one secondary bag, comprising:a rotor including: a rotor shaft having: a rotation axis, and a hollow upper portion defining a central compartment extending around the rotation axis and having an upper opening for receiving the at least one secondary bag; a rotor bowl connected to the rotor shaft so as to be centred with respect to the rotation axis, and connected to the hollow upper portion of the rotor shaft and having: a separation compartment for receiving the separation bag, and an expandable hydraulic chamber located within the separation compartment for selectively squeezing the separation bag within the separation compartment so as to transfer a separated component from the separation bag into a secondary bag in the central compartment; a hydraulic system connected to the hydraulic chamber by a duct extending through the rotor shaft for pumping a hydraulic liquid to and from the hydraulic chamber.