| 摘要 |
<p>Syringe with automatic retraction of the needle (1) by means of an elastic system (7) following the end-of-travel pushing exerted by the piston (7) on the cylindrical base (22) of the 'flower' (2), that in opening releases the needle (1), which falls into the front chamber (4), leaving no possibility of being re-utilized.</p> |
