Abstract: A valve unit is switchable to an open position at which an outside of an exterior portion and an inner cavity communicate with each other and a closed position at which a communication between the outside of the exterior portion and the inner cavity is blocked in an endoscope. In the endoscope, an electric power is supplied to a drive force generation section only when a connection portion of an universal cord is connected to a peripheral device, and the drive force generation section generates a drive force to drive the valve unit by a supply of the electric power. The valve unit moves from the closed position to the open position by the drive force generated by the drive force generation section.

Abstract: A valve unit is switchable to an open position at which an outside of an exterior portion and an inner cavity communicate with each other and a closed position at which a communication between the outside of the exterior portion and the inner cavity is blocked in an endoscope. In the endoscope, an electric power is supplied to a drive force generation section only when a connection portion of an universal cord is connected to a peripheral device, and the drive force generation section generates a drive force to drive the valve unit by a supply of the electric power. The valve unit moves from the closed position to the open position by the drive force generated by the drive force generation section.

Abstract: An endoscope includes a first breakable portion provided between a part of an outer peripheral surface of a distal rigid section main body and a second inner peripheral surface, and including a fragile portion which is formed in a concaved-shape and which is more easy to break than any other part of the outer peripheral surface except for thereof. The endoscope includes a second breakable portion provided between a first inner peripheral surface and the second inner peripheral surface, and a third breakable portion provided between the first inner peripheral surface and a part of the outer peripheral surface of the distal rigid section main body, which differs from the fragile portion.

Abstract: An endoscope includes a curving operation portion which performs a curving operation of a curving portion by rotating around a pivot shaft in a first rotation direction and in a second rotation direction opposite to the first rotation direction from a neutral position where the curving portion is in a non-curved neutral state, a first operation wire which is pulled by the curving operation in the curving operation portion to curve the curving portion in the second curving direction, and a second operation wire which is pulled by the curving operation in the curving operation portion to curve the curving portion in the first curving direction. The endoscope includes a wire crossing portion in which the second operation wire crosses the first operation wire, and a movement regulating portion which regulates the movement of the wire crossing portion from within the operation portion into the insertion portion.

Abstract: An endoscope insertion portion includes an image pick-up assembly including an image pick-up unit and an image pick-up cable provided in order from the distal end portion to the proximal end side wherein the outer diameter of the image pick-up unit is larger than the outer diameter of the image pick-up cable, and a channel assembly arranged side by side with the image pick-up assembly and including a thin outer diameter portion and a thick outer diameter portion provided in order from the distal end portion to the proximal end side wherein a distal end portion of the thick outer diameter portion is arranged on more proximal end side than a proximal end portion of the image pick-up unit.

Abstract: A manufacturing method of a resin molded article, includes a primary molding step of molding a primary compact having an optical element and a protruding portion by using a light transmissive molding material, and a secondary molding step of molding a secondary compact that supports the primary compact by using a molding material different from the molding material and integrating the primary compact with the secondary compact. The protruding portion is molded to protrude on the secondary compact side, and at the primary molding step, the molding material of the primary compact is supplied into a molding space for the optical element and it is thereby supplied into a cavity of a molding die for the primary compact.

Abstract: A surgery equipment holding device including a holder for holding surgical equipment, a bar connected to the holder, a brake which operatively engages the bar for stopping movement of the bar, and a pair of switches for switching being an active state and an inactive state of the brake. The surgery equipment holding device is characterized in the operation thereof at the time of disengaging the fixation state, and exhibits excellent operability.

Abstract: There is disclosed an operation microscope in which an observing and displaying system of an operating instrument are selected, and an endoscope image for observing a dead angle of the microscope and a navigation image are selectively displayed in a microscope observation field, so that a tomographic image, three-dimensionally constructed image, and the like can be selectively displayed in a display screen in accordance with a treatment position displayed in a monitor or an observation position of the operation microscope.

Abstract: A surgery equipment holding device including a holder for holding surgical equipment, a bar connected to the holder, a brake which operatively engages the bar for stopping movement of the bar, and a pair of switches for switching being an active state and an inactive state of the brake. The surgery equipment holding device is characterized in the operation thereof at the time of disengaging the fixation state, and exhibits excellent operability.

Abstract: A surgery equipment holding device including a holder for holding surgical equipment, a bar connected to the holder, a brake which operatively engages the bar for stopping movement of the bar, and a pair of switches for switching being an active state and an inactive state of the brake. The surgery equipment holding device is characterized in the operation thereof at the time of disengaging the fixation state, and exhibits excellent operability.

Abstract: An endoscope includes a curving operation portion which performs a curving operation of a curving portion by rotating around a pivot shaft in a first rotation direction and in a second rotation direction opposite to the first rotation direction from a neutral position where the curving portion is in a non-curved neutral state, a first operation wire which is pulled by the curving operation in the curving operation portion to curve the curving portion in the second curving direction, and a second operation wire which is pulled by the curving operation in the curving operation portion to curve the curving portion in the first curving direction. The endoscope includes a wire crossing portion in which the second operation wire crosses the first operation wire, and a movement regulating portion which regulates the movement of the wire crossing portion from within the operation portion into the insertion portion.

Abstract: An endoscope includes an operation portion side member, an insertion portion side member rotatable integrally with the insertion portion, an elastic member provided in one of the operation portion side member and the insertion portion side member, a frictional surface which is provided in the other of the operation portion side member and the insertion portion side member and which generates a frictional force between the frictional surface and the elastic member when the frictional surface is pressed onto the elastic member and the insertion portion is rotated, and a movement adjusting mechanism which relatively moves the operation portion side member and the insertion portion side member to continuously adjust press force acting between the elastic member and the frictional surface while deforming the elastic member.

Abstract: An endoscope insertion portion includes an image pick-up assembly including an image pick-up unit and an image pick-up cable provided in order from the distal end portion to the proximal end side wherein the outer diameter of the image pick-up unit is larger than the outer diameter of the image pick-up cable, and a channel assembly arranged side by side with the image pick-up assembly and including a thin outer diameter portion and a thick outer diameter portion provided in order from the distal end portion to the proximal end side wherein a distal end portion of the thick outer diameter portion is arranged on more proximal end side than a proximal end portion of the image pick-up unit.

Abstract: A medical instrument holding apparatus includes a supporting mechanism, a moving mechanism, a basal portion and a counterweight. The supporting mechanism supports a medical instrument. The moving mechanism which has first and second sides, and a shaft portion located between the first and second sides. The moving mechanism supports the supporting mechanism, allowing the medical instrument and the supporting mechanism to be moved around the shaft portion. The basal portion is coupled to the shaft portion. The basal portion supports the moving mechanism, allowing the moving mechanism to rotate around the shaft portion. The counterweight is located on the second side of the moving mechanism. The counterweight generates a first rotation moment being smaller than a second rotation moment generated from the weights of the medical instrument and the supporting mechanism and acting around the shaft portion in the opposite direction to the second rotation moment.

Abstract: An endoscope is connected optically removably to a TV camera through an adapter. A plurality of fixing pins is arranged on both sides of an insertion axis of an insertion part of the endoscope. A fixing unit to fix the endoscope removably is provided at the front end of an arm unit of an endoscope holder which supports the endoscope movably. The fixing unit has a claw and a movable claw, and grips the fixing pins of the endoscope releasably between the claw and the movable claw.

Abstract: An endoscope includes an operation portion side member, an insertion portion side member rotatable integrally with the insertion portion, an elastic member provided in one of the operation portion side member and the insertion portion side member, a frictional surface which is provided in the other of the operation portion side member and the insertion portion side member and which generates a frictional force between the frictional surface and the elastic member when the frictional surface is pressed onto the elastic member and the insertion portion is rotated, and a movement adjusting mechanism which relatively moves the operation portion side member and the insertion portion side member to continuously adjust press force acting between the elastic member and the frictional surface while deforming the elastic member.

Abstract: A surgery equipment holding device comprises a holder for holding surgical equipment, a bar connected to the holder, a brake which operatively engages the bar for stopping movement of the bar, and a pair of switches for switching being an active state and an inactive state of the brake. The surgery equipment holding device is characterized in the operation thereof at the time of disengaging the fixation state, and exhibits excellent operability.

Abstract: A surgery equipment holding device comprises a holder for holding surgical equipment, a bar connected to the holder, a brake which operatively engages the bar for stopping movement of the bar, and a pair of switches for switching being an active state and an inactive state of the brake. The surgery equipment holding device is characterized in the operation thereof at the time of disengaging the fixation state, and exhibits excellent operability.

Abstract: An operation system and a connecting adapter are provided. The operation system includes an operation microscope, an external device connectable to the operation microscope, and a connecting adapter for electrically connecting the operation microscope and the external device without bringing the operation microscope and the external device into contact with each other, which maintains a state of sterilization of the external device.

Abstract: A medical device supporting apparatus for supporting a medical device in a three-dimensional space, in which a holding device for holding the medical device is supported by a supporting mechanism three-dimensionally, and the state of the supporting unit is switched between the movable state and the locked state by operating a plurality of final control elements. Operation is stabilized by differentiating the amount of operating force of the plurality of final control elements.