| 摘要 |
A device (10) for collecting a blood sample from a plastic segment tube (50) into a receptacle (60) uses a cylindrical housing (11) containing a hollow needle (15) to puncture the segment tube (50) as it is inserted into the upper port of the device (10). A series of ribs (14) with tapered medial edges are arranged in a radial pattern around the needle (15) within the upper por t to guide and support the segment tube (50) as it is inserted. The ribs (14) are separated by slots (1 3) that also guide the sealed end (51) of the segment tube (50). An annular recess (16) around the lower port of the device (10) holds the rim of the receptacle (60) and allows blood released by the punctured segment tube (50) to drain into the receptacle (60). The annular recess (16) accommodates a wi de range of test tube diameters, and exerts only a downward force on the rim of the receptacle (60 ) when a segment tube (50) is inserted into the upper port of the device (10).
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