| 摘要 |
A disposable safety syringe structure includes a barrel, a needle seat, a plunger, and a protective cover. A circumferentially surrounded thin broken portion is disposed on a periphery of an end portion of the barrel, and a circular groove is disposed on the end portion of the barrel thereby fastening the protective cover. In addition, a vertical cutter is disposed on a bottom end of the protective cover, and a fastener is disposed on a top end of the plunger, such that the syringe can be hooked onto an opening of the outlet of the barrel by means of the fastener of the plunger after injection. When the protective cover is turned, the cutter cuts off the broken portion such that the needle head is retracted to the barrel and the barrel can be completely destroyed in order to prevent it from being recycled and reused.
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