| 摘要 |
PURPOSE: To provide a blood drawing device which is extremely safe and of high reliability in operation, and in which gas tightness is held in centrifugal separation. CONSTITUTION: A inner tube 11 which can be expanded in a radial direction is contained in an outer tube 10 of a relatively high rigidity through a circular groove 12, and a separation member 33 is contained in the inner tube 11. Lock means which operate in cooperation with each other are formed at forward ends of the inner tube 11 and the outer tube 10, so both tubes 10, 11 are engaged with each other by the lock means to lock and seal them, and an end wall 13 having a cannula hub 17 is formed at the forward end of the outer tube 10. |
