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Safety syringe for taking blood

  • US 20070123822A1
  • Filed: 11/25/2005
  • Published: 05/31/2007
  • Est. Priority Date: 11/25/2005
  • Status: Abandoned Application
First Claim
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1. A safety syringe for taking blood comprising a hollow barrel having a bottom open end for receiving therein a tube, a top end and a stop formed on an inner face of the barrel;

  • a needle hub rotatably connected to the stop of the barrel and having a first needle extending in a first direction toward the barrel and a second needle extending in a second direction opposite to that of the first direction;

    a cap rotatably mounted to the top open end of the barrel and detachably connected to the needle hub; and

    a spring sandwiched between the needle hub and the cap when the spring is at a first position and sandwiched between the cap and the stop when the spring is at a second position such that after the needle hub is rotated due to the rotation of the cap for predetermined degrees the needle hub together with the first needle and the second needle is pushed by the spring into the barrel for disposal.

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