Lavage arrangement

A lavage arrangement, comprising:

• an applicator housing having a handle and an application opening for dispensing a rinsing liquid, the applicator housing enclosing a drive receptacle which is accessible via a housing opening;
• a liquid line by means of which the application opening can be connected to a reservoir of the rinsing liquid;
• and
• a drive unit of a pump that can be inserted into the drive receptacle for conveying the rinsing liquid from the reservoir to the application opening, the drive unit having a motor, a power supply device and a pump drive shaft which can be driven by the motor,
• wherein a rotor which can be driven by the pump drive shaft is provided with at least one displacement element, the at least one displacement element, together with a deformable section of the liquid line, forming the pump in the form of a peristaltic pump, and wherein the rotor is held with the at least one displacement element on the drive unit and can be inserted interchangeably with the drive unit in the drive receptacle.