guard for syringe needle and injektionsvorrichtung so

摘要

P the injection device comprises: - an injection syringe (1) comprising: a tubular body of a syringe equipped with a proximal end of a neck (16) of the projecting radially towards the outside; and • the injection piston mounted to slide in the body, - a device (2) of the needle protection device comprising: • a protector support (20), and a needle protector (22) coulissant.il comprises a pin (25) of a stop for the stopping of the piston (8), which pin (25) is carried by the protector support (20) and defines, in the extension of the syringe body, a passage for circulation of the piston, the minimum cross section is greater than the cross section of the main part (10) of the piston and is less than the section of a shoulder (15) of the piston. / p