| 摘要 |
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 guide pipes, which guide returning endless belts, being mounted in the insertion tube thereof, each of said guide pipes being provided with an opening for a cleaning brush (35) and a casing (31), which surrounds the endless belt driving unit, being formed with a cleaning window (33), said window being provided with a lid (37).
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