| 摘要 |
The invention concerns an injection syringe (10) comprising a syringe body (12) bearing an injecting needle (22) and an actuating piston (14) movably mounted in the body (12). The injecting needle (22) extends axially inside the body (12) up to a rear end (22B) on one side of which is initially arranged in the body (12) a transverse wall (90, 96) capable of being perforated. Said transverse wall (90, 96) is movable relative to the needle from an initial position in which the transverse wall (90, 96) is at some distance from the needle (22) to a final position in which the transverse wall (90, 96) is pierced by said needle (22). The syringe comprises rigid means (64) for axially guiding the rear end (22) of the needle when the transverse wall (90, 96) is being pierced.
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