| 主权项 |
1. A grasping treatment device comprising:
a grasping section which includes a probe extended along a longitudinal axis, and a jaw which is openable/closeable with respect to the probe; a first sheath section which is extended to a proximal direction side of the grasping section along the longitudinal axis, the first sheath section including a probe fixed portion that is fixed to the probe, and a movable portion which is connected to the jaw and which is movable with respect to the probe fixed portion along the longitudinal axis; a second sheath section which is provided to the proximal direction side of the first sheath section, the second sheath section including a non-bending cylindrical section which is extended along the longitudinal axis, and a bending cylindrical section which is provided to a distal direction side of the non-bending cylindrical section and which is configured to bend to change a bending angle of the first sheath section relative to the non-bending cylindrical section; a rotating transmitting portion which is extended in the second sheath section along the longitudinal axis, and which is configured to rotate to allow the grasping section and the first sheath section to rotate in one of periaxial directions of the longitudinal axis with respect to the second sheath section; an opening/closing transmitting portion which is extended in the second sheath section along the longitudinal axis, and which is configured to move along the longitudinal axis to enable the jaw to be opened and closed with respect to the probe, the opening/closing transmitting portion being configured to move the movable portion toward the proximal direction with respect to the probe fixed portion by being pulled toward the proximal direction; a guide member which is provided in the bending cylindrical section with the opening/closing transmitting portion being inserted therein, and which is configured to guide the opening/closing transmitting portion; and an acting force transmitting portion that is fixed to the second sheath section, the probe fixed portion of the first sheath section being attached to the acting force transmitting portion from the distal direction side such that the probe fixed portion is rotatable with respect to the acting force transmitting portion in the periaxial directions of the longitudinal axis, the acting force transmitting portion being configured to transmit an acting force from the probe fixed portion to the bending cylindrical section toward the proximal direction, the acting force being configured to act on the probe fixed portion from the movable portion toward the proximal direction in a state that the movable portion moves toward the proximal direction and the jaw closes relative to the probe. |
