| 摘要 |
2135079 9420162 PCTABS00033 The new disposable hypodermic syringe (1) has the composite plunger rod formed by two separate parts (2a, 2b) linked to each other by means of a connecting link (5a, 5b), with a cross-sectional articulation point, said link being made of appropriate material, and presenting a cross-sectional perpendicular slot (7) of selected depth and amplitude, said perpendicular slot forming a flexible connecting membrane and acting as a hinge which brakes due to fatigue. On the facing surfaces of the butt ends (3a, 3b) which are spaced apart in a rest position, there are provided projecting crimping means (8, 9) aligned with respect to each other, and any rotation inparted to one of said means is followed by the other means, seaming which disappears when, upon a subsequent traction, the two discs are spaced apart, yet maintained linked by means of the intermediate part.
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