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Safety retracting needle for use with syringe

  • US 4,900,307 A
  • Filed: 05/31/1988
  • Issued: 02/13/1990
  • Est. Priority Date: 04/29/1987
  • Status: Expired due to Term
First Claim
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1. A safety device for use with a syringe in injecting a substance into a patient or withdrawing a substance from a patient and for thereafter protecting people from contact with portions of the device that have been within the patient;

  • said device comprising;

    a needle for piercing such a patient and for carrying such a substance into or out from such a patient, said needle having a hollow shaft with at least one sharp end;

    a hollow handle adapted to enclose at least the sharp end of the needle beyond reach of such people'"'"'s fingers;

    means for establishing communication between such a syringe and the hollow needle, for passage of such a substance between the syringe and the needle;

    means for securing the shaft to the handle, with the sharp end projecting from the handle; and

    means for releasing the securing means and for substantially permanently retracting the sharp end of the needle into the handle and beyond reach of such people'"'"'s fingers;

    said releasing and retracting means being manually actuable by a simple unitary motion, of amplitude that is substantially shorter than the shaft of the needle.

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