ENDOSCOPE AND ENDOSCOPE SYSTEM
An endoscope includes an insertion part having a channel; an operation part attached to a proximal end part of the insertion part; a shaft-like member inserted into the insertion part, a proximal end part of the shaft-like member extends to the operation part, and the shaft-like member configured to be capable of moving inside the channel with respect to the insertion part; and a projectable unit provided at a distal end part of the channel; wherein the projectable unit includes: a movable part provided at a distal end part side of the channel and provided at distally than a distal end of the shaft-like member; and a coupling part watertightly attached with the movable part and the distal end part of the channel and is elastically deformable in accordance with a movement of the movable part.
1 . An endoscope comprising:
an insertion part having a channel;
an operation part attached to a proximal end part of the insertion part;
a shaft-like member inserted into the insertion part, a proximal end part of the shaft-like member extending to the operation part, and the shaft-like member being configured to be capable of moving inside the channel with respect to the insertion part; and
a projectable unit provided at a distal end part of the channel;
wherein the projectable unit includes:
a movable part provided at a distal end part side of the channel and provided at distally than a distal end of the shaft-like member; and
a coupling part watertightly attached with the movable part and the distal end part of the channel and is elastically deformable in accordance with a movement of the movable part.
2 . The endoscope according to claim 1 , further comprising:
a distal-end-side restricting part restricting a range where the shaft-like member moves to a distal end side with respect to the insertion part.
3 . The endoscope according to claim 1 , further comprising:
a proximal-end-side restricting part restricting a range where the shaft-like member moves to a proximal side with respect to the insertion part.
4 . The endoscope according to claim 1 ,
wherein the shaft-like member and the movable part are separated from each other when the shaft-like member moves to a proximal side, and
wherein the movable part is configured to be pushed to a distal end side by the shaft-like member when the shaft-like member moves to the distal end side.
5 . The endoscope according to claim 4 ,
wherein a proximal end part of the movable part is formed so as to project toward proximally than the coupling part, one of a proximal end part of the movable part and a distal end of the shaft-like member is provided with a connecting part, and the other of the proximal end part of the movable part and the distal end of the shaft-like member is provided with a larger-diameter part that is larger than the external diameter of the connecting part.
6 . The endoscope according to claim 5 ,
wherein a recess that is recessed toward a direction away from the connecting part is formed in a surface of the larger-diameter part that faces the connecting part.
7 . The endoscope according to claim 1 ,
wherein the shaft-like member and the movable part are coupled together.
8 . An endoscope system comprising:
the endoscope according to claim 1 ; and
a cap that is attachable to and detachable from an insertion part distal end that is an outer surface of the insertion part of the endoscope;
wherein the cap includes:
a main body that is formed in a tubular shape, a proximal end part of the main body attached to the insertion part; and
a movable member which has a receiving part being pressed by a distal end surface of the movable member by protruding the movable member from the channel, and attached to the main body so as to rotate around an axis intersecting a center axis of the main body when the receiving part is pressed to the distal end surface of the movable member.