Patent ID: 7935087

Claim:
A syringe comprising a barrel and a needle sheath slidably located within the barrel, a sheath seal, a plunger, a plunger disabling means, a needle mount and a needle, an end of said needle extends into said sheath seal in fluid communication with a fluid space in said barrel, said needle sheath releasably mounted to said needle mount, the needle mount directly coupled to the sheath seal, arranged so that said plunger urges said sheath seal to bear against said needle sheath and thereby release said needle sheath from said needle mount and move said needle sheath to cover or at least partly enclose the needle after delivery of fluid contents of the syringe, wherein said plunger disabling means is operable to impede, prevent or otherwise hinder withdrawal of the plunger during depression of the plunger or after depression of the plunger is complete.