| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide improved drug delivery devices.SOLUTION: A drug delivery device 5 includes: a housing 10 with a needle holder 24 suitable for attaching a needle unit 20 to the housing 10 at a distal end 22; and a cap 30 being capable of covering the distal end of the drug delivery device 5 and comprising a retaining member 32 capable of securing the cap 30 by engaging with the housing, where the retaining member 32 is prevented from engaging with the housing 10 with the needle unit 20 being attached to the needle holder 24.</p> |
