Some embodiments are directed to a device for a surgical instrument, including at least one sensor, a circuit for controlling and processing signals coming from the at least one sensor, a memory for storing information coming from the circuit, and a radio interface for transmitting this information to an external device, the sensor(s), the circuit, the memory and the radio interface being powered by a power source, the circuit, the memory, the radio interface and the power source being housed in one or several hermetic and heat and pressure resistant case(s), in order to allow an autonomous operation of the device.