In a syringe for injections, especially intravenous --being realized so as to be used only once and comprising a body making up the cylinder to which the needle is fitted, a piston sliding in said cylinder and a piston handling member (stem) for recalling the piston during the liquid aspiration phase...http://www.google.com/patents/US4863427?utm_source=gb-gplus-sharePatent US4863427 - Syringe for injections, especially intravenous made to be used only once, without any possibilityof re-aspiration
