[Ultrasound instruments for surgical purposes--technical aspects and selected areas for use].

Surgical instruments simulated to oscillate by means of low-frequency performance ultrasound are particularly useful for specific fields of application. A survey describes the technical principle of action and the development work carried out at the Technical University of Karl-Marx-Stadt in the GDR to produce ultrasound instruments for tumour extraction and aspiration, for the insertion of stomatological leaf implants, for percutaneous lithotrips of kidney stones and for the surface treatment of septic wounds.