Patents Assigned to Biotop Technology Co., Ltd.
  • Retracting device for a safety syringe
    Patent number: 6921382
    Abstract: A safety syringe has a barrel, a needle hub movably received in the barrel and having a hollow cone with a flange formed on an inner periphery of the hollow cone and a plunger with a hook formed to correspond to the flange of the needle hub such that when the hook engages with the flange of the needle hub, the needle hub is ready to be pulled back into the barrel by a rearward movement of the plunger so that the syringe is ready to be disposed of safely.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: July 26, 2005
    Assignee: Biotop Technology Co., Ltd.
    Inventors: Tun-Chi Lee, Ting Shen