Apparatus for supporting an operator in operating a medical device, comprising a signaling device for signaling a necessary operation of a component to be operated of the medical device, preferably by emitting a signal from the component to be operated and/or by orienting a signal onto the component to be operated. Method for supporting an operator in operating a medical device, comprising the signaling of a necessary operation of a component to be operated of the medical device by emitting a signal from the component to be operated and/or by orienting a signal onto the component to be operated. Single-use item for a medical device, preferably a single-use item for the medical device, with a component to be operated by an operator, wherein the component to be operated comprises a signaling device for emitting an optical, acoustical, and/or haptical signal.
