| 主权项 |
1. Drive mechanism (9) for a needle insertion arrangement (1), the drive mechanism (9) comprising an actuator (5) coupled to a parallel linkage (10) adapted to convert a linear movement of the actuator (5) in a longitudinal direction (L) to a linear movement of a cross beam (7) in transverse direction (T) substantially at right angles with respect to the longitudinal direction (L), wherein the linkage (10) comprises a connecting rod (11) coupled to the actuator (5), wherein the linkage (10) comprises at least one cross beam (7), wherein the linkage (10) comprises at least two links (12, 13, 14, 15), at least one of the links (12, 13) pivoted at one end in the connecting rod (11) and at another end in a fixed anchor point, and at least another one of the links (14, 15) pivoted at one end in the cross beam (7) and at another end in the connecting rod (11). |
