| 摘要 |
A pharmaceutical delivery apparatus including a housing ( 22 ), a syringe assembly, and a needle ( 44 ) cap. The syringe assembly is plungeable relative to the housing from a first position, at which its needle tip is disposed within the housing, to a second position, at which its needle tip projects from the housing beyond the proximal end for insertion into an injection site. A base ( 46 ) of the needle cap is exposed at the housing proximal end to be manually grippable for cap removal. A needle cap stem is upstanding from the base and sized and configured to insert through an opening is the housing proximal end to cover the needle tip when the syringe assembly is disposed in the first position. The needle cap base further includes a plurality of distally projecting cams ( 54, 258 ) located radially outward of the stem. The cams are fittable within slots ( 40, 240 ) in the housing proximal end when the cap is fully mounted to the apparatus.
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