| abstract |
The invention describes a holding fixture (2) for a blood sample collection tube (3) of a blood-taking device (1) which has a collecting container (11), with needle carrier (22), for a front end of the blood sample collection tube (3), which is closed off by a closure device (39). Mounted in the needle carrier (22) is a syringe (23) directed toward the opened end (12) of the collecting container (11) and projecting in its direction. A connecting passage (32) formed between the needle carrier (22) and a front wall (17) of the collecting container (11) links a flow channel (53) with a collecting needle (5) of a needle arrangement (4) that is excentric to a central longitudinal axis (13) of the collecting chamber (15). As required, an openable valve arrangement (52) is situated between the connecting passage (32) and a collecting chamber (15). This valve arrangement (52) is formed by a tube valve (36) or flap valve disposed between the syringe (23) and the collecting container (15) and/or the connecting passage (32). The syringe (23) is preferably set concentric to the collecting container (11). The flow channel (31) feeds into the connecting passage (32) between the syringe (23) and an outer wall of the collecting container (11). |