1983 Volume 25 Issue 12 Pages 1991-1996_1
A panendoscope is widely used for general routine examination as well as emergency examination of the upper GI tract. The three kinds of panendoscopes are now available ; forward-viewing, oblique-viewing and forward/side view-switching types. According to the utility, many kinds of forward-viewing type panendoscopes are used widely. But any of them is not completely satisfactory, A new wide and oblique-viewing panendoscope has been recently developed. Fujinon model UGI-G proto type has the visual angle of 125° with deviation of view by 45° oblique, the bending capacity 150° up, 130° down, 100° right/left, the distal end diameter 12.0 mm, the insertion tube diameter 11.3 mm, the forceps channel size 2.8 mm and the working length 1, 110 mm. The lightguide has a goggle-eye lens on the distal end for uniform illumination within the wide view range of 125°. This protruded goggle-eye lens, coupled with a rounded-off edge of the distal end, has permitted soft and easy insertion of the scope. The capability of forceps-bending mechanism added another utility in endoscopic treat-ments. Our experiences with this UGI-G proto type has shown smooth and easy insertion from esophagus to duodenum and very good coverage of observation due to wide and oblique view with bending manipuration. Although it has a few points to be improved, such as, the tube diameter should be less than 10.0 mm, it sould have electrical safety and so on. The easy and correct treatments are available due to largesized forceps channel and forceps-bending mechanism. UGI-G proto type is a useful and effective model as panendoscope for both upper and lower GI tract.
