Universal syringe
First Claim
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.
0 Assignments
0 Petitions
Accused Products
Abstract
A universal syringe includes a sterile filled glass vial of injectable medicament retained within the vial by identical piston seals disposed proximate each cylinder end. The piston seals are in intimate frictional contact with the internal walls of the vial and are slidable therealong. Removable plastic end caps are removably retained on the vial ends to maintain the vial in a sterile condition until used. A slidable finger rest encompassing the outer wall of the vial is movable therealong and retained by externally protruding lip portions provided on both ends of the vial. A needle assembly is removably retained in a hollow cylindrically shaped piston rod which is capped on both ends to maintain the sterile condition. The needle assembly may be readily removed from the hollow piston rod and one end thereof may be inserted into the vial piston seal at either end and retained thereby, a needle pierced the seal to provide communication of the medicament in the vial through the needle opening to the patient. The piston rod may be inserted into the remaining vial seal and be retained thereby, thus providing a complete syringe.
-
Citations
10 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification