| 摘要 |
<p>A non-reusable syringe is disclosed having a syringe barrel (1) and a plunger assembly (4, 7, 8) reciprocable in the barrel. The plunger assembly comprises a plunger rod (8) and a piston member (4), arranged so as to allow limited relative movement with respect to each other. The plunger rod has a resilient blocking member (12) capable of becoming engaged with recesses (18, 19) in the inside wall of the syringe barrel. A safety member (20) is removably arranged between the barrel and the plunger assembly to prevent blocking of the plunger rod before use of the syringe and define a precise dose of the liquid to be injected. The present syringe offers practically absolute guarantee against re-use and allows better and quicker clearance of the air before the injection.</p> |
