| 摘要 |
PROBLEM TO BE SOLVED: To provide a pigment spray tube for endoscopes, even when the tube itself is softened, facilitating its insertion into a plug of a forceps channel of an endoscope body and, even when repeatedly bending an endoscope distal end, eliminating the possibility of damaging the part.SOLUTION: A pigment spray tube 1 that is inserted from a plug of a forceps channel provided at an endoscope body and protruded (exposed) from a distal end of an endoscope is provided. A hollow shaft member 10 being loosely fitted to a leading portion of the tube 1 is provided, and the hollow shaft member 10 is retained by the tube 1 with a detachable stopper 14. Generally, the hollow shaft member 10 is retained by the tube 1 with the stopper 14, and the hollow shaft member 10 that is made free by removing the stopper 14 is inserted into the plug, such that even the soft tube can be smoothly inserted therein without any resistance. Further, when the hollow shaft member is pulled out from the plug, the tube is firmly tightened by elastic force of the plug. |
