Endoscope system with a rotating treatment adapter at the end

An endoscope system comprising:

• an elongated insertion tube;
• an illumination light emitting means which is installed in the tip of said insertion tube and emits illumination light;
• an objective optical system which is installed in the tip of said insertion tube and forms optical images;
• a torque transmission member which is installed at least in the tip of said insertion tube and outputs transmitted torque from a terminal to a distal end thereof;
• a rotating treatment member, having an axis, which is mounted to said distal end to be freely detachable and a rotating treatment section which is formed as part of the distal end along said axis of said rotating treatment member, wherein said rotating treatment section grinds a touching object when driven to rotate, wherein a protrusion near a proximal end of said rotating treatment member is fitted into a slit formed at said distal end;
• and
• a locking member having an axial end, wherein said axial end directly abuts said protrusion for locking said protrusion fitted into said slit.

An endoscope system comprising:

• an elongated insertion tube;
• an illumination light emitting means which is installed in the tip of said insertion tube and emits illumination light;
• an objective optical system which is installed in the tip of said insertion tube and forms optical images;
• a torque transmission member which is installed at least in the tip of said insertion tube and outputs transmitted torque from a terminal to a distal end thereof;
• and
• a rotating treatment member, having an axis, which is mounted to said distal end to be freely detachable and a rotating treatment section which is formed as part of the distal end along said axis of said rotating treatment member, wherein said rotating treatment section grinds a touching object when driven to rotate,
• said rotating treatment member being locked in said torque transmission member by a falling prevention means for locking a protrusion, near a proximal end of said rotating treatment member, within a slit formed at said distal end, and for directly abutting an axial end of a locking member onto said protrusion fitted in said slit.