作者: Michael L. Haining
DOI:
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摘要: A simplified retractable needle hypodermic syringe is provided which includes a barrel having carrier mounted therein with cannula attached thereto. slidable plunger within the shaft and hub for locking to carrier. The seal conveniently about between hub. removable safety cap cover upper end of prevent accidental depression engagement before use. placed over open after use provide closed container. broken off at above leaving in barrel.