Clinical Gastroenterology Vol.16 No.2(4-4)

Theme Latest Developments in Devices Related to Colonoscopy and Progress in Insertion Techniques
Title The Art of Total Colonoscopy using Variable Stiffness Colonoscope (CF-240A)
Publish Date 2001/02
Author Ryoji Omasa Omasa Medical Clinic
[ Summary ] The variable stiffness colonoscope (CF-240 A) is a very usefull tool, because the stiffness of the CF-240 A's insertion scope can be easily adjusted during the insertion operation, depending upon physicians' needs. In the case of examinations with the CF-240 A, we started to insert the shaft with the softer mode and continued insertion, using the same mode, until progress was halted. If we have trouble going further than the SD junction, because of loops being formed at the sigmoid colon, we release the loops and straighten the inserted portion. Then, we change the variable stiffness mode of the shaft from the softer to the harder and insert the scope further.
Advantages attributed to the softer mode. : (1) It was easy to release loops formed at the sigmoid colon when the distal end of the scope reached the splenic flexure. (2) Since delicate operation of scope movement is possible, observing inside the colon with a scope in the softer mode was easier than with a scope in the harder mode (during withdrawal of the scope). (3) It was indicated that relatively safe insertion operation was possible, even in cases of inserting a scope into a colon with stenosis, diverticulosis, post abdominal operation adhesions etc.
Advantages attributed the harder mode. : (1) Preventing loops of the inserted portion, formed at the sigmoid colon, when inserting a scope from the splenic flexure to the transverse colon, making it no longer necessary to conduct procedures in combination with the sliding tube, abdominal manipulation and patient posture change. Insertion into a colon having strong spasms was facilitated.
back