The invention relates to an ultrasound-assisted wound cleanser in the form of a handheld device, comprising an integrated vibration motor, an integrated ultrasound generator, an integrated energy source for the vibration motor and the ultrasound generator, and a replaceable cleaning attachment which can be driven by the vibration motor for abrasively removing wound coatings. The cleaning attachment has an acoustic transducer which is designed to convert the electric oscillations generated by the ultrasound generator into sound waves, a device for reinforcing and/or distributing and/or transferring the ultrasound waves, and brushes and/or lamellas for the abrasive removal. The invention further relates to a method for cleaning wounds, wherein a cleaning attachment with brushes for abrasively removing wound coatings is moved by a vibration motor. The cleaning attachment is oscillated by an ultrasound generator, and the oscillations for supporting the removal of wound coatings are transmitted into the wound via a transmission medium.