作者: Patrice Flaherty
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摘要: Blood collecting devices for blood from a patient using single needle insertion are disclosed. Each device typically includes housing which is removably attached to test tube or reservoir. A flow disposed in fluid communication with the distributing into The distributed through membrane cavity having liquid-impervious and air-permeable membrane. At least one air opening provided at cavity. Accordingly, reservoir displaced by incoming out openings. Vacuum pressure dispelled of openings, reservoir, respectively.