Industrial ultrasonic cleaning machines can thoroughly remove blood, tissue fluid, and biofilms from surgical instruments, especially those with complex structures (such as endoscopes and joint instruments). For example, ultrasonic technology can penetrate lumens and crevices through the cavitation effect. Coupled with a multi - frequency design (20 - 130 kHz), it can adapt to different materials, and the cleaning efficiency is more than 20 times higher than that of traditional manual cleaning.