| 摘要 |
In a device for the extraction of capillary blood including a capillary open at both ends and being of a predetermined volume, having a capillary effect at least at the front end thereof, a holder is integrally connected to said capillary which is provided with one or more windows. For avoiding dosage errors, a closure pin for the rear end of the capillary or in a modification a rear transverse wall having one or more air exit apertures is provided.
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