Surgical machine and method for controlling and/or regulating a surgical machine

Surgical machine comprising:

• a housing,
• a surgical drive disposed in the housing,
• a push-button unit with at least one actuating member mounted on the housing for movement in a direction of actuation for prescribing a rotational speed and/or a direction of rotation of the surgical machine,
• a field generating unit for generating a magnetic field,
• at least one actuating sensor coupled with the field generating unit for generating an actuation signal in response to a movement and/or a position of the actuating member, the generated actuation signal being correlated with a field strength and/or a change in the field generated by the field generating unit, which occurs as a result of a movement of the actuating member,
• a field changing member for generating a change in the field acting at a location of the actuating sensor and generated by the field generating unit, which occurs as a result of a movement and/or a changed position of the actuating member,
• wherein:
• the drive and the housing are directly or indirectly connectable in a detachable manner, and
• the actuating sensor and the field generating unit are fixedly disposed relative to each other.