Drain hose unit for the aspiration of body fluids by means of a suction pump, in which the hose unit has a drain hose (10) for the aspiration of body fluids and at least one service hose (11 ), respectively, with one end on the side of the patient and one end on the side of the pump, wherein the ends on the side of the patient of the drain hose (10) and the service hose (11) are arranged in a common connection piece (3) on the patient's side and the ends on the pump side of the drain hose (10) and the service hose (11) are arranged in a connection piece (2 ) common on the side of the pump, in which the connection piece (2) on the side of the pump is configured for insertion into a corresponding suction device, in which the ends of the drain hose (10) extend apart from the ends of the service hose (11) and wherein the end of the patient side of the drain hose (10) flows into a drain channel (37) of the connecting piece (39 on the side of the patient and the end of the patient side of the service hose (11) flows into a service channel (35) of the connection piece (3) on the patient side and the end of the pump side of the drain hose (10) flows into a channel drain (24) of the connection piece (2) on the pump side and the end of the pump side of the service hose (11) flows into a service channel (25) of the connection piece (2) on the side of the pump.Unidad de manguera de drenaje para la aspiración de fluidos corporales por medio de una bomba de aspiración, en la que la unidad de manguera presenta una manguera de drenaje (10) para la aspiración de los fluidos corporales y al menos una manguera de servicio (11), respectivamente, con un extremo en el lado del paciente y un extremo en el lado de la bomba, en la que los extremos en el lado del paciente de la manguera de drenaje (10) y de la manguera de servicio (11) están dispuestos en una pieza de conexión (3) común en el lado del paciente y los extremos en el lado de la bomba de la manguera de drenaje (10) y de la mangu