tube 60 the present device 10 could also be used without a test tube 60 or other receptacle for example the device could be used to obtain a blood specimen directly onto a slide for a blood smear optionally the annual recess 16 could be completely eliminated the base of the needle 15 is surrounded by a series of lower ribs 17 arranged in a radial pattern on the underside of the divider 12 the exposed surface area of the lower ribs 17 adjacent to the base of the needle 15 provides capillary attraction for any remaining droplets of blood after the test tube 60 is removed and thereby reduces the risk of contamination to the surrounding area furthermore the lower ribs 17 protrude below the base of the needle 15 as shown in fig3 and prevent the user 39 s hand or fingers from accidentally coming into contact with the base of the needle 15 in the preferred embodiment the needle 15 extends upward from the center of the divider 12 along the vertical axis of the housing 11 the annular recess 16 is also centered about this common vertical axis as the segment tube 50 is inserted into the upper port of the device 10 the slots 13 guide and support the sealed end 51 of the segment tube 50 so that it is punctured by the needle 15 the ribs 14 guide and support the smaller diameter of the.