A device for coupling at least two medically applicable instruments, which are coupled to at least two control apparatuses, includes a central control unit coupled to input and/or output connections of said at least two control apparatuses. The central control unit includes at least one processor that receives output signals from the at least two control apparatuses and converts the output signals into a unified format. At least one processor receives inputted control signals, converts the control signals into formats corresponding to the respective at least two control apparatuses, and transfers the converted control signals to the at least two control apparatuses to control the at least two medically applicable instruments.
