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Universal syringe

  • US 4,365,626 A
  • Filed: 07/09/1981
  • Issued: 12/28/1982
  • Est. Priority Date: 10/25/1979
  • Status: Expired due to Term
First Claim
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1. A universal syringe for the application of liquid medicaments comprising, in combination;

  • (a) an elongated cylindrically-shaped vial having outwardly extending lip portions proximate each end thereof and identical piston seals disposed proximate each cylinder end, said piston seals being in intimate frictional contact with the internal walls of said vial and slidable therealong, said vial being adapted to retain said liquid medicament therein;

    (b) a slidable finger rest encompassing the outer wall of said vial and movable therealong until restrained by said lip portions;

    (c) cap means adapted to be received on each end of said vial to maintain its sterility; and

    (d) a needle assembly means, said needle assembly means including;

    (i) a needle having one end adapted to be inserted into a patient and the other end thereof adapted to be removably retained by either of said vial lips while piercing said piston seal and communicating with said medicament disposed within said vial, and(ii) elongated cylindrically-shaped piston rod means, said piston rod means being hollow and adapted to removably receive said needle therein and when said needle is removed therefrom after being inserted into a piston seal, is adapted to be received by the remaining piston seal to function as a piston rod.

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