| 摘要 |
An auto-injector system comprises a disposable syringe assembly10for use in an auto-injector device and comprises a syringe housing which receives said syringe barrel and which is restrained against longitudinal movement with respect thereto, a shield portion20mounted for generally telescopic movement relative to said syringe housing between a retracted position and an extended position in which in use it shields said syringe needle18, and a lock out arrangement26activated as said shield20moves towards its extended position to prevent retraction therefrom. When fitted in an auto-injector the auto-injector may include drive mechanism for moving said shield portion20to its locked out extended position, whereby, on completion of an injection operation, said disposable syringe assembly10may be removed from said auto-injector in a shielded condition for subsequent disposal. |
