“…To be sure, obstetricians have been aware for a long time of the potential fetal risks of not being able to measure objectively, when using forceps, the pull applied, and of the medico‐legal risks resulting from the lack of objective data concerning the difficulty of the delivery. Thus, several attempts have been made through the years 10–15 to overcome these drawbacks, by incorporating the means to measure and record traction, either into the forceps itself or into the axis‐traction handle. However, the devices proposed, while suitable for research purposes, have revealed themselves too cumbersome for clinical use and, thus, have failed to gain wide acceptance.…”