Telescopingly coupled syringe and vial

Claim 1

A syringe comprising a cylindrical vial having a closed end and an open end sealed by a resilient stopper in slidable sealing engagement with the bore of the vial, a needle having both ends pointed, a plastic body having a solid needle hub molded around and in gripping contact with a major portion of the length of the needle, said needle hub having an integral socket at its upper end, the open end of the socket facing the open end of the vial, the socket being of larger outside diameter than the hub and of smalleR outside diameter than the bore of the vial and the combined length of the needle hub and socket being greater than the length of the vial to permit telescoping of substantially the full length of the vial over the socket and the upper portion of the needle hub, the lower pointed end of the needle projecting from the lower end of said needle hub so as to be accessible to an injection site and the upper pointed end of the needle projecting into said socket so as to be presented to the stopper, a projection on the stopper fitting into the socket, interengaging means on the projection and socket as the projection is inserted into the socket for establishing a push or pull thrust transmitting connection between the stopper and the needle hub and for causing the upper end of the needle to penetrate the stopper and communicate with the interior of the vial as the vial is moved axially relative to the hub so the contents of the vial may be injected by pressure on the closed end of the vial, and holding means connected to the lower end of the needle hub for holding the syringe while exerting pressure on the closed end of the vial.