CENTRIFUGAL SEPARATION DEVICE, PRETREATMENT SYSTEM PROVIDED WITH CENTRIFUGAL SEPARATION DEVICE, AND CONTROL METHOD FOR THE SYSTEM

摘要

A normal centrifugal processing cannot be performed in some cases if there is difference in a weight between holders installed at symmetric positions to each other across a rotation central axis of an automatic centrifuge or if gravity center of a total weight of the holders is shifted due to weight unbalance of specimen containers installed at the holders. A determination mechanism which obtains information about the weight of the specimen housed in the specimen container is arranged on a conveyor line for connecting between a loading module and an automatic centrifugal unit, the specimens are held without being installed at an adaptor until the number of the specimens which can be subjected to a centrifugal processing at once by the automatic centrifugal unit arrives, and the specimens are installed after the arrival in an order from a heavier specimen at the adaptors to be paired, which are installed at the symmetric positions to each other across the rotation central axis. Also, the specimen is installed at the gravity-center position of the adaptor first, and the subsequent specimens are installed from the inner side at the point-symmetric positions to each other across the gravity-center position.