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Cannula insertion set with safety retracting needle

  • US 4,747,831 A
  • Filed: 04/29/1987
  • Issued: 05/31/1988
  • Est. Priority Date: 04/29/1987
  • Status: Expired due to Term
First Claim
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1. A safety device for use in inserting a cannula into 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 patient and for guiding and carrying such a cannula into place within such patient, said needle having a 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 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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