Abstract: Disclosed is a hypodermic syringe with several embodiments teaching the safe disposal of the cannula and hub of the syringe into a container such as a SHARPS CONTAINER without the need of replacing the needle cover thus eliminating the very real danger of an accidental stick of a finger or hand of the technician with a contaminated needle. The preferred embodiment allows the plunger to stop at a first resistance and when the needle is removed from the subject and placed over the disposal container, continued forward motion forces the hub and needle to separate from the barrel thus involving the use of only one hand and eliminating the need to bring the others hand anywhere near the contaminated needle.

Abstract: A remote cannula removal cartridge syringe comprising a first barrel, a second barrel, an expandable needle hub, and a modified needle hub receiver. The second barrel is concentric with the first barrel and has a retaining pin which slides within a series of grooves of the first barrel. After use of the syringe the second barrel may be protracted causing the engagement and safe separation of the needle hub from the syringe without requiring the operator to recap the syringe or place fingers near the contaminated needle.