Obstetrical instrument of the forceps type for extracting a fetus and an assistance device for extraction equipped with aforementioned forceps

An obstetrical instrument of a forceps type to extract a fetus by pulling during a childbirth, the obstetrical instrument comprising:

• two branches, each branch being equipped with a gripping handle at a first end and with a cephalic blade at a second end;
• one measurement device per cephalic blade and a flexible casing surrounding each measurement device, each flexible casing comprising a connector between each measurement device and respective cephalic blade, said each measurement device comprising:
• a pressure measurement instrument configured to measure a pressure exerted by the respective cephalic blade on the fetus;
• a position measurement instrument to measure a positioning of the obstetrical instrument;
• a power supply means;
• a transmitter to transmit measurements to a processing unit;
• and wherein each connector is configured to clip each flexible casing onto an exterior face of the respective cephalic blade and to remove and reposition said each flexible casing from the respective cephalic blade without the use of any tool, and said each connector comprises a flexible groove to enable insertion and retention of edges of the respective cephalic blade.