| 摘要 |
<p>A self-destroying insulin syringe includes a barrel (1), a plunger-rod (2) and a piston (3). The barrel (1) is provided with a diameter-increasing part at the rear end, which is provided with a self-destroying mechanism therein. The self-destroying mechanism is comprised of a stop ring (5) and a support ring (6), and the stop ring (5) is supported and secured by the support ring (6). The stop ring (5) is provided with centripetal gathering elastic pawls (7) at the upper end, and provided with elastic support claws (8) at the lower end. Correspondingly, the wall of the barrel (1) is provided with recesses (9) into which the elastic support claws (8) are embedded. The plunger-rod (2) has a taper table (10) clamped with the elastic pawls (7).</p> |
