Patent ID: 9381293
Filing Date: 2016-07-05
CPC Classification: A61M,B01L,B04B

Claim Text:
1. A method for extracting enriched thrombocyte concentrate out of whole blood with a centrifuge, using: a closed-loop control unit and/or an open-loop control unit; a drive unit coupled to said closed-loop control unit and/or said open-loop control unit for driving said centrifuge; a first tubule and a second tubule; a rotor; said rotor includes a first tubule receptacle and a second tubule receptacle; said first tubule removably resides in said first tubule receptacle and said second tubule removably resides in said second tubule receptacle; said first and second tubules being in fluid communication with each other; a first transfer means operationally connected with said first tubule and a second transfer means operationally connected with said second tubule; said first and second transfer means coupled to said closed-loop control unit and/or said open-loop control unit; said first and second transfer means include first and second motor/gear units, respectively; said first and second transfer means and said first and said second tubules transfer and back transfer blood components between said first and second tubules; a first sensor resides between said first and said second container receptacles and detects a separation layer of said blood components, said first sensor is coupled to said closed-loop control unit and/or said open-loop control unit; comprising the steps of: inserting said first and second tubules in fluid connection with each other through a hose, into said first and second tubule receptacles, respectively, where said first tubule contains said whole blood and said second tubule contains a biocompatible material; operating said centrifuge at a first centrifuge speed; first centrifugation until erythrocyte concentrate having a high density as well as thrombocyte enriched blood plasma separated therefrom by a separation layer have been formed in said first tubule; reducing said speed of said centrifuge to a first squeezing-off speed; starting said motor/gear unit associated with said first tubule being in operational connection with a first piston, and squeezing-off said thrombocyte enriched blood plasma through said hose into said second tubule until said first sensor associated with said hose has detected said separation layer; increasing said speed of said centrifuge to a second centrifuge speed; second centrifugation until a thrombocyte concentrate having a high density as well as a thrombocyte depleted blood plasma separated therefrom have formed in said second tubule; reducing said centrifuge speed to a second squeezing-off speed; starting said motor/gear unit associated with said second tubule being in operational connection with a second piston, and back squeezing said thrombocyte depleted blood plasma through said hose into said first tubule; breaking-down said centrifuge; moving back said motor/gear units; and, removing said tubules.