A TWO-CHANNELED SMALL-INTESTINAL ENDOSCOPE FOR ROPEWAY METHOD (FIS-W)

Abstract

A two-channeled small-intestinal endoscope for the "ropeway" method (FIS-W) has been developed, intending improvement for endoscopic diagnosis of small intestine, especially of localized changes. Improved specifications are as follows. 1) Shorter working length 2) Two channels for introducing forceps 3) Angle wire mitigator 4) Increased capacity of transmitting light from the light-source 5) Angle deflection in four directions 6) Wider angle of vision 7) Automatic operation system of air/water supply and suction This FIS-W has much higher efficiency than the former small-intestinal endoscope (FIS-BII) and has almost equal efficiency to a gastroendoscope or a colonoscope.