Device for supplying an electro-pen with electrical energy

Device for supplying electrical energy to an electrical pen (2) with an electric drive unit for driving a tool, the device including a panel supply unit power (1), which provides power to the unit electric drive electric pen (2), a) the panel with power supply unit (1) being equipped with an accumulator (4); B) taking place power to the panel with the supply unit power (1) in the electric pen (2), either through a sterilizable cable is inductively without electrical connection, characterized in that C) the panel supply unit power (1) it is configured such that it can be steam sterilized.