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Safety syringe with I.V. port access

  • US 5,735,823 A
  • Filed: 11/07/1994
  • Issued: 04/07/1998
  • Est. Priority Date: 07/08/1992
  • Status: Expired due to Term
First Claim
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1. A safety needle device for use with a "y" type connector, the connector having a hollow bore within, a sidearm and an injection port having a pierceable septum to provide access to the bore, comprising:

  • an elongate barrel having a longitudinal axis and an inside surface defining a chamber, an open proximal end, a distal end having a needle cannula attached thereto, said needle cannula having a lumen therethrough in fluid communication with said chamber, said needle cannula projected distally outwardly from said distal end of said barrel and terminating in a distal tip;

    a needle guard having a proximally located first end and a distally located second end, said needle guard being mounted for movement relative to said barrel from a retracted position in which said guard does not materially obstruct access to said distal tip of said needle cannula and an extended position in which said guard substantially prevents inadvertent access to said distal tip of said needle cannula;

    means for releasably retaining said guard in said retracted position;

    means for locking said guard in said extended position; and

    said guard including an open slot extending proximally from said second end, said slot sized to accept the sidearm when said guard is in said extended position, said slot further including a dogleg portion sized to releasably engage the sidearm of the "y" connector with a rotational movement of said guard relative to said axis of said barrel when said needle cannula is penetrating the septum and the bore of the connector is in fluid communication with said chamber of said barrel.

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