Method for recording the number of sterilizations of a piece for a medical device

Piece for a medical device, said piece being a motor and/or a handpiece, comprising:

• a pressure sensor arranged for sensing a pressure when said piece is placed in a sterilization chamber, said sensor being arranged to record the number of sterilizations of said piece;
• and a storage element, for storing information that the sterilization has occurred;
• said pressure sensor being configured to electrically discharge said storage element when a sensed pressure is above a predefined threshold.

Piece for a medical device, said piece being a motor and/or a handpiece, comprising a microprocessor and a pressure sensor and/or a temperature sensor and/or a humidity sensor and/or an angular position sensor arranged for sensing a pressure and/or a temperature and/or a humidity and/or an angular position when said piece is placed in a sterilization chamber;

• the piece further comprising a storage element providing power supply, in particular a battery, that is operably connected to said pressure sensor and/or said temperature sensor and/or said humidity sensor and/or said angular position sensor;
• said storage element being arranged to supply said microprocessor only when the sterilization is detected, the microprocessor being configured to store information that the sterilization has occurred.