Pre-filled syringe

作者: Gaetan Sanschagrin , Jean Thibodeau , Jean-Louis Jacob

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摘要: A pre-filled syringe is provided with a retractile needle. The needle end of enclosed in sterile chamber within casing sealed by cap break-off tip. barrel the movable from remote pre-injection position to forward injection and back again. When moved first passes through opening then opposite comes contact injectant. withdrawn position, retracted prevented re-entering cap.

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