Endoscope and treatment tool elevating mechanism

Abstract

There are provided an endoscope and a treatment tool elevating mechanism capable of achieving improvement in accessibility of a cleaning brush, prevention of wear of a distal-end-portion main body, and prevention of slipping of a treatment tool into the lower side of an operating wire. When viewed in a second direction perpendicular to both the longitudinal axis of the distal-end-portion main body and a first direction perpendicular to the longitudinal axis, a wire distal end portion of the operating wire connected to a wire connection portion of a treatment tool elevator is positioned on the other direction side with respect to an elevator main body portion of the treatment tool elevator. A second wall portion of an elevator-housing-space forming member has a first wall surface at least a portion of which has a shape along the trajectory of the wire connection portion that rotates about a rotary shaft, and a second wall surface provided at a position on one direction side of the first direction with respect to the first wall surface and having a shape extending along the trajectory of the elevator main body portion that rotates about the rotary shaft. When viewed in the second direction, the second wall surface overlaps at least a portion of the wire distal end portion in the first direction.