| 摘要 |
<p>The syringe includes a casing (1), a plunger (2) which moves inside of it and a needle-bearer (5) with the respective needle (3) coupled to the end of the casing. The plunger is hollow and the surface (10) which closes its pushing end has an attenuated annular line (11) and a concentric projection (12) with a cutting edge, while the plate (7) which is part of the needle-bearer, which is located in the bottom of the casing, has an attenuating line (9) and an annular cutting projection (8) complementing the projection and the attenuation, respectively, of the closing of the plunger; at the end of the travel of the plunger trajectory, the cut through said weakening lines takes place by means of a spring (4), the divided disks and the needle itself being pushed inside the plunger. Thus, the syringe is disabled and conceals the needle after being used. <IMAGE></p> |
