Sure, let me explain. Fiber optic and video endoscopes are medical devices that are used to perform upper and lower gastrointestinal (GI) endoscopy procedures.

During an upper GI endoscopy, a thin, flexible tube called an endoscope is inserted through the mouth and down the throat to examine the esophagus, stomach, and the beginning of the small intestine. Similarly, during a lower GI endoscopy, the endoscope is inserted through the anus to examine the rectum, colon, and sometimes the end of the small intestine.

The endoscope is equipped with a light and a camera that transmits images of the inside of the GI tract to a video monitor. The fiber optic technology allows for the transmission of light through the endoscope to illuminate the area being examined, while the video technology captures the images that are displayed on the monitor.

This allows the surgeon or gastroenterologist to visually examine the inside of the GI tract and identify any abnormalities or issues that may be present, such as ulcers, polyps, tumors, or bleeding.

The use of fiber optic and video endoscopes has revolutionized the field of gastroenterology and has allowed for less invasive and more accurate diagnosis and treatment of GI disorders.