| 摘要 |
It comprises three functions, performed by the mainspring G; the first absorbs the liquid, releasing the mechanism when the locking pin F is pulled out; the second function hides the injection needle H when all the liquid is expelled, connecting the pull hook D with the hook connection cavity K; the last mechanism locking function releases the mobile locking plate B, occupying the space vacated by the needle holder I, said locking function being completed by the exit stop of the mechanism E, preventing the needle holder I from coming out through this point. <IMAGE>
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