Abstract: A method for recording the number of sterilizations of a piece for a medical device. The piece can be a motor and/or a handpiece. The piece includes a temperature sensor and/or a pressure sensor and/or a humidity sensor and/or an angular position. The method includes the following steps: inserting the piece into the sterilization camber; detecting the sterilization based on the temperature and/or the pressure and/or the humidity and/or the angular position in which the handpiece is received in the sterilization chamber by the temperature sensor and/or the pressure sensor (102) and/or the humidity sensor and/or the angular position sensor. This solution allows recording of the number of sterilizations of a handpiece and/or a motor for a medical device, in particular for a dental device.

Abstract: Surgical system, in particular a dental system including a surgical instrument, in particular a dental instrument and a device for controlling the electronic instrument. The device for controlling the electronic instrument includes a first electronic module. The instrument includes a rotary motor for driving the tool and a second electronic module. The rotary motor of the instrument is electrically powered by the first electronic module of the control device through the first electrical conductors dedicated to supply the rotary motor. The instrument is powered and/or electrically controlled by the first electronic module of the control device only through the second electrical conductors distinct from the first electrical conductors. The system also includes a management module of the second electrical conductors for sending on the second electrical conductors a number of signals larger to a number of second electrical conductors.

Abstract: A sensorless brushless motor control device includes a first amplification module common to all motor phases and generating an intermediary voltage signal, a voltage divider between each motor phase and a node on which the intermediary voltage signal is generated, and a computation unit. Each voltage divider generates a first corrected electromotive force with a predetermined average value. The computation unit controls the motor on the basis of the first corrected electromotive forces. By using only hardware components, the control device maintains the average of the corrected electromotive forces at the center of the analog acquisition zone of the computation unit.

Abstract: Sensorless brushless motor control device, comprising: a first amplification module common to the motor phases and laid out for generating an intermediary voltage signal, a voltage divider between each motor phase and a node on which the intermediary voltage signal is generated, wherein each voltage divider is laid out for generating a first corrected electromotive force having a predetermined average value, wherein the computation unit is laid out for controlling the motor on the basis of these first corrected electromotive forces. By using hardware means, this control device enables the average of the corrected electromotive forces to be maintained at the center of the analog acquisition zone of the computation unit.

Abstract: A surgical device includes a manual instrument provided with a rotary motor for driving a tool and at least one sensor for determining at least one operating parameter of the motor (1). The device further includes an electronic servo-control module of the motor, and a flexible connection for electrically connecting the instrument to the electronic module. The instrument includes a digital electronic circuit for processing output signals of the sensor and transmitting them to the electronic module through the flexible connection.

Abstract: Surgical device, in particular a dental device, comprising: a manual instrument (100) provided with a rotary motor (1) for driving a tool and at least one sensor (H1, H2) for determining at least one operating parameter of the motor (1), an electronic servo-control module (3) of the motor (1), a flexible connection (2) for electrically connecting the instrument (100) to the electronic module (3). The instrument (100) comprises a digital electronic circuit (4) for processing output signals (cH1, sH2) of the sensor (H1, H2) and transmitting them to the electronic module (3) through the flexible connection (2).