| 摘要 |
<p>There is described a retractable needle syringe assembly wherein sealing of the grommet (21) is improved by a thinwalled neck (2) surrounding a plunger head (18). A sealing grommet with no penetrating bore is also described, and means for preventing reuse of the syringe by causing breakage (43,44) of parts (1,10) during disassembly is disclosed.</p> |
