作者: Bjorn Nielsen
DOI:
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摘要: When collecting blood samples in sealed systems evacuated specimen vials (6) are used, which with a foremost penetratable cap inserted into holder (4) to sampling needle (2, 10) is secured; the rear end of extends and perforates (46) vial, thus enabling collection through thin by suction effect from vial. There an element risk attached using needles two-sided protruding needle, invention extraction (10) only one-sidedly its holding piece (8), whilst return made built-in, completely screened portion (22) for connection vial (6). Special sealing problems at changing same procedure countered that displaceably secured (4, 26) constitutes part valve arrangement (26, 28, 34), opened insertion closed removal Furthermore advantageous design disclosed.