| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an endoscope enabling simultaneous execution of advance operation and liquid feed operation of a narrow-diameter endoscope by single operation.SOLUTION: An endoscope includes: a tube part 10 through which a channel 14 passes; a grip part 11 in the inside of which a cylinder space 11a whose diameter is enlarged and which is continuous to the proximal end of the channel, is formed; an endoscope probe part 12 inserted into the channel and acquiring an observation image; and a piston part 13 connected to the proximal end of the endoscope probe part and operating inside the cylinder space. The grip part is provided with an operation part 16 operating the piston part, and the piston part is advanced with respect to the grip part via the operation part, so that the endoscope probe part is advanced with respect to the tube part, and a fluid L stored inside the cylinder space is pushed out by the piston part to be delivered. A delivery passage of the fluid is provided to the tube part or the endoscope probe part as the channel 14 or a channel different from it.</p> |
