Abstract
The purpose of this study is to report the clinical experiences of newly-devised two types of colonofiberscope (CF-6a and CF-6b). These fiberscopes were designed to lessen discomfort of the patient during examination. The common characters of both fiberscopes were as follows; Outer diameter was 6.1mm, and metallic olive-shaped hood was attached to the tip of the fiberscope. Biopsy equipment was not connected. The difference of both fiberscopes was width of the angle movable at the tip, that is, 60° and 120° in CF-6a and CF-6b, respectively. Twenty-five and twenty-one cases were examined with CF-6a and CF-6b, respectively. Quality of both fiberscopes was compared from the following standpoint; form of the loop made in the sigmoid colon, portion inserted, average time of examination, and degree of discomfort of the patient during the examination. Following results were obtained. 1) Satisfactory results were obtained by both equipments concerning the discomfort of the patient during the examination. 2) Insertion into more distal portion was possible by examination with CF-6b than that with CF-6a though insertion ratio into the cecum was both quite low. Therefore, further improvement of equipment and combined use of sliding tube were desired.
