What are the domestic and international EMC (electromagnetic compatibility) standards for urological lithotripsy?

Urological lithotripsy endoscopes (e.g., ureteroscopes, nephroscopes, often used in conjunction with laser lithotripters) must meet GB 9706.1, YY 0505 (domestic), and IEC 60601-1-2 (international) EMC standards. They integrate endoscopic imaging with a laser fiber optic channel. The standards require that the camera system's image not be strongly interfered with (e.g., appearing as stripes or a black screen) when the high-energy pulses of the laser lithotripter (usually a holmium laser) are operating, while ensuring accurate laser energy transmission and control signals to prevent false triggering. Laser pulses are extremely strong sources of transient interference.