A pump device for use in operating theatres and to arrangements composed of corresponding pump devices and endoscopes. A pump device according to the invention for use in operating theatres includes a pump unit with a pump and a control unit, and a pump hose attached to the pump unit. The pump unit further includes a light source that can be controlled by the control unit to display the operating state of the pump unit. The pump hose has a fibre optic which extends along the pump hose, wherein the first end of the fibre optic is designed to couple in light from the controllable light source. The arrangement according to the invention includes a pump device according to the invention and an endoscope, which is designed to deliver flushing liquid to the operating site.