Fig. 5

Overview over different actuation profiles. Note the different velocity ranges on the y-axis in a & b and c–f. a Mean velocity–distance profiles ± standard deviation from the best rated syringe (BBO5), i.e., the CHD without guide tube, for every tested velocity; b mean velocity–distance profiles ± standard deviation of the CHD system including the additional guide tube for every tested velocity; c–f actuation profiles of manual insertions performed by four different test persons using a surgical forceps