Abstract
A new panendscope FG-QBR (Fujinon) with convertible roofprism which makes a wide range observation from forward to side view was developed. With the aid of bending action to four directions, it has great powers of observation even in the narrow upper gastrointestinal tract. This instrument is also effective in such treatment as irrigation, aspiration, dye-scattering and biopsy with a forceps opening. Since June 1975, using this FG-QBR, the diagnosis has been done in emergency endoscopy as well as in routine endoscopy at The First Department of Internal Medicine and Department of Traumatology, Osaka University Medical School. Since 1977, a new FG-QBR was avairable for us after a few times revision. The experiences of endoscopy with this new FG-QBR has been increased as many as 200 times until December 1977. The pathological changes, such as, esophageal varices, gastric cancer, duodenal ulcer and so on, were found in endoscopy with this instrument. Ruptured varices, hemor-rhagic gastritis and bleeding ulcers were also found in emergency endoscopy. The additional pathological lesions in other organs of the upper gastrointestinal tract were found in 33 cases (170), which added the accuracy of the diagnosis. So, the usef ullness of this panviewfiberscope FG-QBR has been confirmed in our experiences.