Abstract: A power transmission apparatus for an electric bending endoscope includes an actuating member switchable between a connection position to bring a clutch mechanism into a connection state and a release position to bring the clutch mechanism into a release state, the actuating member being interlocked with the clutch mechanism, an electric drive mechanism being interlocked with the actuating member, and a manual drive mechanism including an operation member manually switchable to at least one of a connection drive position to bring the actuating member into the connection position and a release drive position to bring the actuating member into the release position, and a selective actuation transmission mechanism provided between the operation member and the actuating member and to transmit the actuation of the operation member to the actuating member and absorb the actuation of the actuating member without transmitting the actuation to the operation member.

Abstract: A bending mechanism includes a vertical driving portion with a central axis that extends along an X-axis direction, a horizontal driving portion with a central axis that extends along the X-axis direction and is adjacent to the vertical driving portion in a Y-axis direction, a vertical rotary portion that is coupled to the vertical driving portion and is rotated, and a horizontal rotary portion adjacent to the vertical rotary portion in the Y-axis direction that is coupled to the horizontal driving portion and is rotated. The binding mechanism further includes a holding portion holding a vertical operation wire extending from the vertical rotary portion to a rear surface on the side where the horizontal rotary portion is disposed, and holding a horizontal operation wire extending from the horizontal rotary portion to the rear surface on the side of the vertical rotary portion and further intersecting with a vertical operation wire.

Abstract: A power driven bending endoscope with detachable insertion portion 2 is formed of an insertion body 3 having a flexible bending portion 3B, and a motor unit 4 having an electric motor 23 for driving to bend the bending portion 3B and a potentiometer 26 for detecting a bending state of the bending portion 3B, which are detachably coupled.

Abstract: The present invention has an object to provide an electric bending endoscope apparatus with a configuration which is always capable of securing favorable operability at a time of using an endoscope without placing a weight burden on an operator when operating the endoscope, and for the purpose, the electric bending endoscope apparatus includes at least an electric bending endoscope that is configured by an elongated insertion portion which is inserted into a body cavity, a bending drive section which electrically drives a part of the insertion portion to bend, and an operation portion configured to be separate from the bending drive section and electrically connected to the bending drive section, and performs observation and treatment of an inside of the body cavity, a system controller which is electrically connected to the electric bending endoscope and centrally controls the electric bending endoscope, and an endoscope holding device configured by a bending drive unit which contains the bending drive secti

Abstract: A gear apparatus includes a spur gear including teeth and to be rotated around a rotation axis, a rotation mechanism to rotate the spur gear, a limitation member including tooth to be engaged with the teeth of the spur gear, the limitation member to limit the rotation of the spur gear, a movement mechanism to move the limitation member in the radial direction of the rotation axis such that the tooth of the limitation member is engaged with the teeth of the spur gear, an input mechanism to input power to actuate the movement mechanism, a transmission mechanism to transmit the power input by the input mechanism to the movement mechanism, and an accumulation mechanism provided in the transmission mechanism and to accumulate the power input by the input mechanism when a tip of the tooth of the limitation member contacts a tip of the tooth of the spur gear.

Abstract: A power transmission apparatus for an electric bending endoscope includes an actuating member switchable between a connection position to bring a clutch mechanism into a connection state and a release position to bring the clutch mechanism into a release state, the actuating member being interlocked with the clutch mechanism, an electric drive mechanism being interlocked with the actuating member, and a manual drive mechanism including an operation member manually switchable to at least one of a connection drive position to bring the actuating member into the connection position and a release drive position to bring the actuating member into the release position, and a selective actuation transmission mechanism provided between the operation member and the actuating member and to transmit the actuation of the operation member to the actuating member and absorb the actuation of the actuating member without transmitting the actuation to the operation member.

Abstract: An attachment and detachment mechanism includes convex and concave engaging portions provided in first and second couplings respectively and extending in a radial direction of first and second shaft portions, the convex engaging portion is to be slidably inserted into and removed from the concave engaging portion along a longitudinal direction of the concave engaging portion, the convex and concave engaging portions includes basic positions where the longitudinal directions of the convex and concave engaging portions correspond to the attachment and detachment direction of the first and second main body portions and the convex and concave engaging portions are insertable into and removable from each other, and the attachment and detachment mechanism further includes a guide mechanism to guide one engaging portion such that the one engaging portion is disposed at the basic position in conjunction with the attachment or detachment of the first and second main body portions.

Abstract: A medical apparatus includes an insertion-section-side body of an endoscope, which serves as a first member, a power unit which serves as a second member having an outer peripheral portion which is surrounded by walls, and having a reception chamber to which the insertion-section-side body is detachably connected, a fluid connection unit which is connected to the insertion-section-side body on an outside of the reception chamber, and a non-fluid connection unit which is connected to the insertion-section-side body on an inside of the reception chamber. Thereby, a medical apparatus is provided, wherein a fluid connection unit for fluid connection of, e.g. air feed and water feed, can be shut off, by a simple structure, from a non-fluid connection unit for non-fluid connection of, e.g. an illumination optical system, a signal line and a driving force system, and the reliability of a water-proof measure is high.

Abstract: An endoscope includes an insertion portion having a bending portion, a base portion connected to the insertion portion, an operation wire extending from the bending portion toward the base portion, a drive source unit which is provided in the base portion, and a drive force transmission unit which is connected to the operation wire and the drive source unit. The drive source unit includes a first frame, a second frame, a motor, a gear box and a potentiometer. The gear box includes a horizontal power transmission mechanism for horizontally transmitting power from the motor, and an epicyclic gear mechanism for vertically transmitting power from the horizontal power transmission mechanism.

Abstract: A power driven bending endoscope with detachable insertion portion 2 is formed of an insertion body 3 having a flexible bending portion 3B, and a motor unit 4 having an electric motor 23 for driving to bend the bending portion 3B and a potentiometer 26 for detecting a bending state of the bending portion 3B, which are detachably coupled.

Abstract: An endoscope 2 includes an insertion body 3 equipped with a potentiometer 26 for detecting a bending state of a bending portion 3B which is allowed to be bent and inserted into a subject and an electric connector 18c for outputting an electric signal as a detection result of the potentiometer 26, and a motor unit 4 detachable with respect to the insertion body 3 via an attachment/detachment portion 14, which is equipped with an electric motor 23 for bending the bending portion 3B.

Abstract: An endoscope includes an insertion portion that has a bendable portion; and a bending manipulating device that bends the insertion portion by rotating a traction member extending from the bendable portion. The bending manipulating device includes a rotating member rotating with the traction member engaged, a driving motor that rotates the rotating member, and a speed reduction mechanism that transmits the driving force of the driving motor to the rotating member. The speed reduction mechanism includes a sun gear rotated by the driving force of the motor and having first external teeth, plural planetary gears each having second external teeth engaging with the first external teeth, a first gear having first internal teeth engaging with the second external teeth, and a second movable gear having second internal teeth engaging with the second external teeth. The number of second internal teeth is different from the number of first internal teeth.