| 摘要 |
Safety device, especially for a pre-filled syringe (3) with an outer protective sleeve (10), consists of an elastic element (15) attached to or made in one piece with the sleeve. The elastic element has an axial end (20) that slides along the syringe plunger (7), connected to the sleeve end by two or more elastically-deformable arms (16). Safety device, especially for a pre-filled syringe (3) with an outer protective sleeve (10), consists of an elastic element (15) attached to or made in one piece with the sleeve. The elastic element has an axial end (20) that slides along the syringe plunger (7), connected to the sleeve end by two or more elastically-deformable arms (16). The arms fold as the plunger is depressed and retract the syringe barrel and needle (5) inside the sleeve on completion of the injection.
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