DRIVE MECHANISM FOR A NEEDLE INSERTION ARRANGEMENT

摘要

The invention relates to a drive mechanism (9) for a needle insertion arrangement (1), the drive mechanism (9) comprising: - a cross beam (16) linearly movable in a distal direction (D) and a proximal direction (P) for moving an injection needle (2), - an actuator (5), - a slider (12) coupled to the actuator (5) and linearly movable in a transversal direction (T) at right angles relative the distal direction D and the proximal direction D, - a cam (14) on one of the cross beam (16) and the slider (12), - a guide track (13) in the other one of the cross beam (16) and the slider (12) adapted to engage the cam (14), the guide track comprising a sloped section (13.3) such that the cross beam (16) is moved on movement of the slider (12).