发明名称 Blood extracting and centrifuging device
摘要 A blood extracting and centrifuging device has a cylindrical body 1 with front and rear ends 2, 3. The front end is adapted to receive a removable cannula 4 and a piston 8 is sealingly movable within the cylindrical body 1. A piston rod 9 attached to the piston 8 extends through a bore 10 at the rear end of the cylindrical body and is used to retract the piston, from an advanced position adjacent the front end to a retracted position adjacent the rear end, whereby to generate a vacuum in the cylindrical body 1 for extracting blood via the cannula 4. Securing means in the form of an annular retaining projection 22 on one of the piston 8 and the piston rod and an annular lip 24 at the rear end of the cylindrical body 1 are provided to secure the piston to the cylindrical body in its retracted position. After a blood sample has been taken the piston rod 9 can be removed and the cylindrical body 1 inserted directly in a centrifuge without the need to transfer the blood to a centrifuging vessel.
申请公布号 US4459997(A) 申请公布日期 1984.07.17
申请号 US19810321827 申请日期 1981.11.16
申请人 WALTER SARSTEDT KUNSTSTOFF-SPRITZGUSSWERK 发明人 SARSTEDT, WALTER
分类号 A61B5/15;B01L3/02;B01L3/14;(IPC1-7):A61B5/00 主分类号 A61B5/15
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