| 摘要 |
<p>An intradermal needle (100) comprising a needle cannula assembly (10) having a limiter portion (12), a hub portion (14) and a needle cannula (36), a protective cap having a forward (16) and rearward (17) cap to protect and shield a needle cannula prior to and after use, and means for engaging (52+50) the needle cannula assembly,and the rearward cap after use. The mated forward and rearward cap provide a sterile enclosure for the needle cannula assembly prior to use. Removing the rearward cap permits the needle cannula assembly to be coupled to a drug delivery device, while the forward cap removably shields the needle cannula. Removing the forward cap then exposes the needle cannula for use. After use, the distal end of the needle cannula assembly is placed into the rearward cap and lockingly engaged therewith.</p> |
