真空采血管 | 合法醫療器材資訊網

真空采血管（Vacutainer）是一种真空无菌玻璃或塑料管封闭的血液收集管，管内的真空促进预定...您现在使用的中文变体可能会影响一些词语繁简转换的效果。​建议您根据您的偏好...BDVacutainerVenousBloodCollection–TubeGuide(​PDF).

Vacutainer needle are double ended, with one side being encased in a thin rubber coating for safety. When the needle is screwed into the translucent plastic needle holder, the rubber needle is inside the holder, and the exposed needle will be inserted into the vein. When a Vacutainer tube is inserted into the holder, its rubber cap is punctured by the inner needle and the vacuum in the tube pulls blood through the needle and into the tube. The filled tube is then removed and another can be inserted and filled the same way. The amount of air evacuated from the tube predetermines how much blood will fill the tube before blood stops flowing.

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