| 摘要 |
<p>The hypodermic syringe with a suction chamber (40) for a liquid (F) introduced by a piston (44) and a needle (3) is arranged so that it is immediately usable, fulfills all hygienic requirements, is simple to manufacture and is sufficiently cheap to be used as a disposable syringe. The needle is loged in the liquid reception chamber (4). It may be expelled therefrom and is then effectively connected with the chamber. The needle comes out of its envelope during the utilization thereof and therefore it may not be contaminated previously. The needle itself is kept in a chamber separate from the liquid but is completely wrapped and will only be filled in its utilization position. </p> |
