| 摘要 |
Blood sampling system comprises a housing (22) having an opening (23) for the tip (8) of a lancet (3), a lancet guide (5), and a lancet drive (10) with a multi-lever coupling mechanism (12) consisting of two levers (13, 14) connected to each other via a first pivoting joint (16). One of the levers (13) is coupled via a second pivoting joint (17) to the lancet, and the other lever (14) has a third pivoting joint (18) on its end facing away from the lancet. The freedom of movement of the lancet during the pre-tensioning movement is limited so that the lancet tip does not extend out of the opening. The third pivoting joint is fixed on a moving bearing part (20) performing a movement against the piercing direction in the housing during the pre-tensioning process and whose freedom of movement during the piercing movement is limited against the piercing direction. Preferred Features: The freedom of movement of the lancet during the pre-tensioning movement is limited by the trigger (26) for the piercing movement. |
