The invention discloses a blood extraction
centrifuge and a centrifugal extraction method. Before performing the operation such as the cross-matching tests, the blood in a blood reservoir is transferred to a
test tube and is subjected to
centrifugation, and the operation is complicated. The blood extracting
centrifuge of the invention comprises an upper shell, a lower shell, a needle
injector, a
blood collection device, a thimble, a base, a centrifugal mechanism, test tubes, an upper needle gripper, a tube gripper, a tube unloading gripper, and a
test tube storage box and a waste
storage tube-collection box. The needle
injector includes an upper spit shell, a lower spit shell, a needle, a push rod, a pusher holder and a needle driving member. The
blood collection device includes a pin moving block, an upper clamping tube block, a lower clamping tube block, an upper clamping tube screw rod, a lower clamping tube screw rod, a blood collecting tube, a blood collecting electric push rod, apin moving screw rod, a first blood collecting motor, a second
blood collection motor and a third blood collection motor. The
centrifuge can transfer the blood in the blood
storage tube into the testtube and complete the centrifugal layering work of the blood, which simplifies the process of taking blood by the
medical staff.