Rencheng Repair Case: Troubleshooting Common Faults in Olympus Ultrasound Endoscopes

Endoscopic ultrasound (EUS) is an advanced medical device that combines ultrasound and endoscopy. It places a miniature high-frequency ultrasound probe at the distal end of the endoscope. When the endoscope enters the stomach, it allows for direct observation of the intraluminal morphology while simultaneously performing real-time ultrasound scanning to obtain the histological characteristics of the various layers of the pipe wall and ultrasound images of the surrounding adjacent organs.

OLYMPUS's endoscopic ultrasound has a deeper scanning depth, wider exploration range, and systematically integrates observation, diagnosis, and treatment functions, allowing doctors to explore a wider range and facilitating the exploration and development of more EUS new technologies. Endoscopic ultrasound is such a precision device that any problems will seriously affect hospital use.

Common causes of malfunction:

Improper monitor output settings, ultrasound endoscope or probe driver not connected, improper connection between ultrasound probe and probe driver.

Troubleshooting methods:

Select uS as the monitor output setting on the keyboard, turn off the ultrasound host, reconnect the ultrasound endoscope or probe driver, turn off the ultrasound host, and reconnect the probe to the probe driver.

Ultrasound endoscope not connected, ultrasound probe driver not connected.

Troubleshooting methods:

Turn off the standby indicator light, connect the ultrasound cable to the ultrasound host and endoscope, tighten the control levers at both ends, turn off the standby indicator light, connect the ultrasound connector of the probe driver to the corresponding interface of the ultrasound host and tighten it.

Improper monitor brightness or contrast settings, improper GAIN/STC/CONT settings on the keyboard, impedance selector switch on the monitor not set to 75Q.

Troubleshooting methods:

Adjust the monitor brightness and contrast so that the grayscale stripes on the right side of the screen can clearly show 10 segments, adjust different levels to obtain a suitable image effect, set the impedance selector switch to 75Ω.

Common causes of malfunction:

The LED light on the EVIS on the keyboard is not lit, the cable is not connected correctly, the monitor cable is not connected correctly.

Troubleshooting methods:

Press the "US/EVIS" key on the keyboard, set the "DIP" switch on the back of the keyboard, select the appropriate signal cable to connect to the corresponding port of the ultrasound host according to different combinations, and use the appropriate monitor cable to connect to the correct signal port.

Common causes of malfunction:

No response to user settings, image stacking in the upper left corner of the monitor.

Troubleshooting methods:

Turn off the endoscopic ultrasound image processing center and restart it. If the malfunction persists, notify the engineer for troubleshooting according to the error message.

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