| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a position of an insertion opening from which a treatment device inserted into a body cavity reaches an affected area while avoiding an obstacle. <P>SOLUTION: A first light emitting part 21 placed in an insertion part 12 irradiates the affected part inside the body cavity with light. A second light emitting part 22 placed in the insertion part 12 irradiates an inner wall of the body cavity with light toward an opposite side to the first light emitting part 21. A light path where an obstacle (for example, internal organs other than the affected part) in the body cavity is not lighted by lights from the first light emitting part 21 and the second light emitting part 22 is searched for. When a position lighted by the light from the second light emitting part 22 is used as an insertion opening from which the treatment device is inserted, the treatment device does not interfere with the obstacle but reaches the affected part. <P>COPYRIGHT: (C)2011,JPO&INPIT |
