Abstract: An endoscope system includes: an endoscope including a bending portion that is capable of bending; a drive device that is detachably connected to the endoscope and drives the endoscope; and an operation device that is communicably connected to the drive device and has an input portion that inputs an operation for driving the endoscope, wherein the drive device can select a method of controlling the bending portion with respect to the operation input from the input portion from fine movement control and coarse movement control, and the distance at which the drive device bends the bending portion by the coarse movement control with respect to a predetermined operation input is larger than the distance at which the drive device bends the bending portion by the fine movement control.

Abstract: A treatment instrument includes a sheath having a longitudinal axis, an end effector provided on one end of the sheath, a housing to which the other end of the sheath is connected, and an operation dial provided to be rotatable relative to the housing around a first rotational axis. The operation dial includes a first outer peripheral surface provided around the first rotational axis, and a second outer peripheral surface spaced apart from the first outer peripheral surface in a direction along the first rotational axis and provided around the first rotational axis.

Abstract: A task-assistance control apparatus that assists an operator performing a task while viewing a captured task image includes: a task-image acquisition circuit that acquires the task image; and a task determination circuit that determines task details on the basis of the type of a tool detected in the task image and the movement of the tool.

Abstract: A task-assistance control apparatus that assists an operator performing a task while viewing a captured task image includes: a task-image acquisition circuit that acquires the task image; and a task determination circuit that determines task details on the basis of the type of a tool detected in the task image and the movement of the tool.

Abstract: A surgical device includes a housing, a rotator provided on the housing and rotatable about a first axis with respect to the housing, and an operator provided on the rotator and rotatable with respect to the rotator about a second axis intersecting the first axis. The operator includes a spherical band having a spherical outer surface. The spherical band includes an exposed portion which is exposed to the outside of the housing.

Abstract: A treatment instrument includes a sheath having a longitudinal axis, an end effector provided on one end of the sheath, a housing to which the other end of the sheath is connected, and an operation dial provided to be rotatable relative to the housing around a first rotational axis. The operation dial includes a first outer peripheral surface provided around the first rotational axis, and a second outer peripheral surface spaced apart from the first outer peripheral surface in a direction along the first rotational axis and provided around the first rotational axis.

Abstract: An endoscope includes an insertion portion, a manipulator, a shaft, and a finger rest. The manipulator is disposed on a proximal end side of the insertion portion and having a grip. A shaft is disposed outward from the manipulator and standing up in a neutral direction when not manipulated and configured to be tilted toward at least the insertion portion and the grip. The finger rest is disposed on an end portion of the shaft. The finger rest has an outer surface. The outer surface includes a first surface and a second surface. The first surface is located on the side of the insertion portion with extending about a first central point. The second surface is located on the side of the grip with extending about a second central point. The second central point is positioned closer to the insertion portion than the first central point.

Abstract: An operation device includes a touch panel, a detection unit, and a line drawing determination unit. The touch panel detects a contact position where an object has contacted, and outputs a result of detection. The detection unit detects a trace from a start position of contact to an end position of the contact based on the result of the detection output by the touch panel, and detects a change of an area or a width of the contact of the object with the touch panel from the start position to the end position with time. The line drawing determination unit determines whether a line drawing operation to divide the touch panel by a straight line has been performed based on the trace and the change of the area or the width with time detected by the detection unit.