Injection device for a single use pre intended to be filled.

摘要

Injection device for a single use, comprising: - a tubular receptacle (1; 401) provided with means of tight sealing (10; 210; 310; 410; 510; 610) in one of its longitudinal ends, delimiting said means watertight sealing a chamber to be filled with a liquid and comprising a duct (13; 113; 213; 314; 413a; 513; 640) for dispensing the liquid which flows into said chamber, - a support element needle holder (20; 220; 320; 420; 520; 610) provided with a duct for supplying liquid (29; 229; 325; 514; 641) of said needle, can axially move said support member relative to the tubular receptacle (1 , 410), so that is movable between a retracted position, termed closure position in which the dispensing line (13; 113; 213; 314; 413a; 513; 640) is closed off and a position advanced called injection position, in which it allows the liquid outlet from the chamber to the needle (28; 128; 228; 326; 426; 526; 626) through the conduit (29, 229) of said support, comprising: - a cover (30; 230) with a adapted to cover the support member (20 settings; 220; 320; 420; 520; 610), provided with means (35; 36-39; 233; 335; 435; 535; 635) for detachable connection to the tubular receptacle (1; 401), axial retention means-some conjugates (32; 224 , 235), made in the support element and the cover, and arranged in such a way as to maintain said support member in its closed position when the latter is covered by said cover attached to the tubular receptacle (1; 401), - and means for axial retention (23; 226, 236; 321; 344) so ​​arranged to limit the axial displacement path of the supporting element, once the cover tubular container (1, 401) is separated.