Container, apparatus and method for separating platelets
October 20, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2532792 3679128 Centrifuge bag for treatment of biological liquids Centrifuge fluid container Material layer volume determination Blood constituent testing methods Continuous flow fractionation and separation device and method Centrifugal apparatus with biaxial connector Integrated fluid manipulator Patent #: 4284602 InventorsAssigneeApplicationNo. 06/198741 filed on 10/20/1980US Classes:494/10, WITH MEANS FOR INDICATING, INSPECTING, MEASURING, SIGNALING OR TESTING210/787, Cyclonic, or centrifugal (e.g., whirling or helical motion or by vortex, etc.)210/96.1, CONSTITUENT MIXTURE VARIATION RESPONSIVE220/501, Intercommunicable compartments422/44, BLOOD TREATING DEVICE FOR TRANSFUSIBLE BLOOD494/18, Including conduit of flexible umbilical cable type494/42, INCLUDING DRIVEN MEANS AT LEAST PARTIALLY EXTERNAL OF BOWL FOR MOVING MATERIAL THERETO OR THEREFROM494/81Material of bowl wallExaminersPrimary: Schor, Kenneth M.Attorney, Agent or FirmInternational ClassesB04B 5/04 (20060101)B04B 5/00 (20060101) A61M 1/36 (20060101) B01D 21/26 (20060101) Foreign Application Priority Data1979-11-02 JPAbstractA container for the continuous centrifugal separation of platelets component in blood, having a first and a second closed chambers adaptable to be rotated around a rotation axis. Whole blood is continuously introduced into the first chamber. Platelet-rich plasma being obtained as supernatant in the first chamber being discharged through a first outlet port opened at a relatively short distance from the rotation axis and being then introduced into the second chamber. Precipitation in the first chamber being discharged through a second outlet port opened at a relatively long distance from the rotation axis. The consistency of the blood in the first chamber being monitored at a predetermined position which differs from the opened position of the first outlet port and being located between the opened positions of the first and second outlet ports with respect to the distance from the rotation axis. The quantity of the discharge flow through at least one of the first and second outlet ports being controlled so that the consistency of blood maintain a certain constant value. Supernatant in the second chamber is discharged through a third outlet port opened to the second chamber. Platelets component in a high purity content is obtained as precipitation in the second chamber. | |
