| 摘要 |
An injection device including a needle cover, a casing, an injection mechanism, and a needle holder including an injection needle, wherein the needle cover is carried by the casing such that it can be moved, against a restoring force, from a protecting position, past an injection position, and into an assembling position. In the protecting position, the needle cover extends beyond the skin penetrating tip of the injection needle and, in the injection position, the needle cover is short of the tip. In the assembling position, the needle cover allows access to the needle holder, whereby the needle holder can be gripped and connected to or detached from the casing.
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