BENDING APPARATUS

摘要

A bending apparatus includes: a bending portion; an operation element erected vertically from an operation portion having a longitudinal axis and has a shaft portion in which a tilt direction and tilt angle are changeable; a pulling member having one end connected to the bending portion; a pulley on which a rotary body around which the pulling member is wound is arranged; a motor that generates a driving force that rotates the pulley to pull the pulling member wound around the rotary body in a winding direction; a hanging frame that extends in a diameter direction of the shaft portion, and includes an attachment portion to which the other end of the pulling member is attached; and an attachment path setting member provided inside the operation portion, which changes a path of the pulling to the longitudinal axis direction and guides the pulling member to the attachment portion.

主权项

1. A bending apparatus comprising:
a bendable bending portion provided to an insertion portion to be inserted in a subject; an operation portion including an operation portion body at which a bending operation of the bending portion is performed, and a grasping portion to be grasped by an operator, the grasping portion being connected to the operation portion body and having a longitudinal axis parallel to an insertion axis of the insertion portion; an operation element that is erected vertically from the operation portion body, the operation element having a shaft portion that allows tilting operation by the operator to input a bending operation; a hanging frame that extends in a diameter direction from the shaft portion of the operation element inside the operation portion; a pulling member having one end and another end, the one end being connected to the bending portion, the other end being connected to the hanging frame; a pulley disposed inside the operation portion, wherein a rotary body around which an intermediate portion of the pulling member is wound is disposed to the pulley; a motor disposed inside the operation portion, the motor rotates the pulley to generate a driving force to rotate the rotary body in order to pull the pulling member would around the rotary body in a winding direction; and a guide roller that changes a travel path of the pulling member inside the operation portion, the guide roller being arranged so as to separate the pulley from the hanging frame and the guide roller in a direction of the longitudinal axis of the grasping portion.