| 摘要 |
<p>A self discarding syringe which can be used only once since just one loading operation can be performed with it with a mean to inject, and only one ejection of the mean contained therein because the mechanism forming the piston and the stem controlling it, together with a run limitating mean provided in the syringe's body, determines that the piston, after its both ways run inside the syringe body will stay inoperable notwithstanding the stem displacement or the intention to bind the stem through external action.-</p> |
