Device for puncturing

摘要

A puncturing device which includes a sleeve (1), a push-button (2) mounted on one end of the sleeve (10), a piston (5) which has a puncturing tip (7) and is mounted in the sleeve (1), and a power spring (9) placed inside the sleeve (1) between the face (8) of the push-button (2) and the piston (5). The piston (5) has on its outside perimeter wings (11) which rest against the internal projection (12) of the sleeve (1). A return spring (10) is located inside the sleeve (1) between its bottom (3) with the hole (4) for the puncturing tip (7) and the piston (5).