Cleaning Efficacy of Pulsed Vacuum Device on Rigid Endoscopic Instruments

After manual pre-treatment, instruments were placed into the pulsed vacuum cleaning and disinfection machine (Shandong Xinhua Medical, Model PC-150L). The automated program included pulsed vacuum cleaning, rinsing, thermal disinfection (93°C for 2.5 minutes), and vacuum drying.

After manual pre-treatment, instruments were cleaned in a vacuum ultrasonic cleaner (Shandong Xinhua Medical, Model super-6000) with a multi-enzyme solution for a minimum of 5 minutes. This was followed by a separate process in a spray cleaning and disinfection machine for rinsing and drying.