B - Operations – Transporting – 04 – B
Patent
B - Operations, Transporting
04
B
233/1
B04B 9/12 (2006.01)
Patent
CA 1169830
ROTOR HEAD ASSEMBLY FOR DECANTING CENTRIFUGE ABSTRACT A rotor head assembly for a decanting centrifuge parti- cularly useful for clinical laboratory procedures requiring the washing and packing of red cells or other particles. An electro- magnet having upper and lower planar pole faces rotates to drive the removable rotor head assembly and, during the decant cycle, holds a plurality of magnetically-attractable tube carriers in substantially vertical positions against its planar pole faces so that supernatant liquid is centrifugally discharged from the open upper ends of the tubes. Each tube carrier comprises a tube-holding member and a contact member, both of which have their upper end portions pivotally suspended from a support ring which is provided by the rotor assembly and which is coaxial with the rotatable magnet. The planar surfaces of the contact members engage the planar pole faces when the centrifuge is at rest and also when the electromagnet is energized and the rotor assembly is rotated to decant the liquid contents of the centrifuge tubes. Each tube-holding member has two outer side walls which meet along converging planes so that such walls will engage a centrifuge tube along a pair of spaced parallel lines during centrifuge operation, thereby permitting centrifuge tubes of different selected outside dimensions to be supported within the open-topped cavity of such tube-holding member.
431120
American Hospital Supply Corporation
Borden Ladner Gervais Llp
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