An endoscope is provided, being insertable in the colon of a patient, in a self-propelled manner, by driving a plurality of endless belts mounted along the outside surface of a flexible section of an insertion tube thereof, and having a cleaning mechanism therein to be easily cleaned after use. A self-propelled colonoscope (1) is an endoscope insertable in the colon by driving endless belts (10) mounted along the almost entire length of a flexible section (4) of an insertion tube (5), and having...

A self-propelled colonoscope comprises control part and an insertion tube including a distal part, a bending part, and a flexible part. The distal part is equipped with an image pickup element. Endless belts extend along the surfaces of the flexible part from a guide hole positioned at a distance of 3 to 10 cm from the distal end of the flexible part to the control part. The endless belts are driven by a driving mechanism situated in the control part. They are guided from the inner surface of th...

A propellant support apparatus to help a self-propelled colonoscope in its smooth insertion, said colonoscope being insertable in the colon of a patient by driving a plurality of endless belts, mounted along the flexible section of an insertion tube of the colonoscope, without causing pain to the patient even at initial insertion of the colonoscope, comprising an insertable anal pipe (1) that has a smooth outer surface and a high frictional inner surface. By using motive force produced by fricti...

An endoscope is provided, being insertable in the colon of a patient, in a self-propelled manner, by driving a plurality of endless belts mounted along the outside surface of a flexible section of an insertion tube thereof, and having a cleaning mechanism therein to be easily cleaned after use. A self-propelled colonoscope (1) is an endoscope insertable in the colon by driving endless belts (10) mounted along the almost entire length of a flexible section (4) of an insertion tube (5), and having...

The self-propelled colonoscope (1) is self-inserted into a colon by driving endless belts (17) mounted on the outside of the bending section (15) of the insertion tube (9). The cross section of the endless belt (17) is substantially circular and a rack gear teeth having a circular cross section are formed on the outside of the endless belts (17). A recess having a circular cross section and pinion gear teeth which correspond to the shape of the endless belt and the rack gear teeth. Since the end...

A self-propelled colonoscope comprises control part and an insertion tube including a distal part, a bending part, and a flexible part. The distal part is equipped with an image pickup element. Two or more endless belts each of which is circular in cross section extend along the surface of the flexible part from a guide hole positioned at a distance of less than 3 cm from the distal end of the flexible part to the control part. The endless belts are driven by a driving mechanism located at the c...

This invention relates to an endoscope in which an endless belt is guided around via the interior and the exterior of an insertion tube of the endoscope and this endless belt is turned in contact with the body cavity wall surface, thereby enabling to insert the endoscope quickly. The endless belt is guided around between a hole formed at the forward end portion of the insertion tube and a control portion at the proximal end of the insertion tube in a manner to be partially exposed to the outside...

A self-propelled colonoscope (1) includes an insertion tube (5) having a distal section (11), a bending section (13) and a flexible section (15), an operation unit (7) and driving unit. A plurality of endless belts (17) are arranged at the surface of the flexible section (15). Each endless belt (17) passes out to the surface of the flexible section (15) through a guide hole near the tip of the flexible section (15) by driving a driving unit mounted at a driving casing. The colonoscope is self-pr...

Certain new 5,6,7-trichlorobenzoxazolone derivatives are highly active against a wide range of plant fungal and bacterial diseases and have a reduced phytotoxicity. These derivatives are also useful to control the growth of various fungi and bacteria being capable of deteriorating industrial materials.