| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily treat an affected part while observing the state of the affected part and a treatment tool treating the affected part through an endoscopic image. <P>SOLUTION: The endoscope includes: a curved portion 6 provided on the leading end side of a slender insertion portion which can be inserted into a body; a channel 7 formed to extend through the insertion portion in the longitudinal direction, and having an opening 7a on the leading end side of the insertion portion; and an objective optical system 4 provided on the leading end side inside the insertion portion, and converging light from the inside of the body to form an image. The opening 7a and the objective optical system 4 are disposed at positions separated across the curved portion 6 in the longitudinal direction of the insertion portion, and the curved portion 6 can be curved so that the opening 7a is disposed inside a visual field F of the optical system 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
