What are the domestic and international EMC (electromagnetic compatibility) standards for ultrasonic scalpels?

Ultrasonic scalpels (ultrasonic cutting and hemostasis scalpels) must comply with GB 9706.1, YY 0505 (domestic), and IEC 60601-1-2 (international) EMC standards. They convert high-frequency electrical energy (typically 55.5kHz) into mechanical vibration through piezoelectric transducers. Unlike electrosurgical scalpels, ultrasonic scalpels operate at a lower frequency, but the drive circuit (ultrasonic generator) still generates strong conducted emissions and some radiated emissions. Standards require that their harmonic and stray emissions not affect other equipment, and that the main unit has sufficient resistance to interference such as electrostatic discharge and surges to ensure stable output power.