Abstract: A scanning endoscopic device includes an optical fiber allowing irradiation light guided from a proximal side fiber portion to a distal side fiber portion to exit from a distal end thereof, and an actuator section placed to a distal direction side of the proximal fiber portion. The scanning endoscopic device includes a light absorbing section absorbing beam light having directivity in one direction, and the light absorbing section includes a black filling member filling a space between the proximal side fiber portion and an outer envelope tube in radial directions.

Abstract: In a light irradiating device of a scanning endoscopic device, a proximal end of a lens optical system is located apart from a distal end of an optical fiber in directions parallel to the longitudinal axis, and a lens-side facing portion faces a fiber-side facing portion apart from the fiber-side facing portion by a second dimension smaller than a first dimension between the distal end of the optical fiber and the proximal end of the lens optical system in the directions parallel to the longitudinal axis. The proximal end of the lens optical system and the distal end of the optical fiber are located between a distal end and a proximal end of the window in the directions parallel to the longitudinal axis.

Abstract: In a medical device, a field-of-view switching mechanism which moves a field of view imaged by an observation section, and an illumination-light switching mechanism including an illumination section having an illumination range of illumination light whose entire field of view is covered by movement, are configured integrally with each other. The illumination light is illuminated to the current field of view by moving the illumination range of the illumination light, in synchronism with pivoting of an observation and in compliance with the field of view.

Abstract: A medical flexible section includes an inner tube body which has a first bend allowing section configured to allow bending in a predetermined direction provided on a side surface thereof and forms a duct and an outer tube body which has a second bend allowing section configured to allow bending in a predetermined direction provided on a side surface thereof and in which the inner tube body is inserted. The medical flexible section includes an operation ring configured to change bendability of an insertion section constituted of the outer tube body and the inner tube body by rotating the inner tube body in a periaxial direction with respect to the outer tube body to adjust a relative positional relationship between the first bend allowing section and the second bend allowing section.

Abstract: An endoscope system includes a rigid endoscope including an optical system in a rigid insert section thereof, and a wiper sheath. The wiper sheath includes a wiper insert section receiving the insert section of the rigid endoscope, a wiper arranged on a distal end portion of the wiper insert section and enabled to be placed in contact with a distal-end face of the rigid endoscope received in the wiper insert section, and an operation unit, arranged at a proximal end portion of the wiper insert section, for switching the wiper between a contact state with the wiper placed to be in contact with the distal-end face of the rigid endoscope and a detached state with the wiper spaced apart from the distal-end face of the rigid endoscope, and for moving the wiper on and along the distal-end face of the rigid endoscope when the wiper is in the contact state.

Abstract: A surgical gripper includes a gripping section opened/closed to grip an object to be gripped and an operation section which opens/closes the gripping section, wherein the gripping section is configured to be opened/closed by the operation section to take a gripping mode of gripping the object to be gripped so that treatment is performed by the object to be gripped, an adjusting mode of gripping the object to be gripped by a gripping force lower than that of the gripping mode so that an arrangement of the object to be gripped is adjusted while the object to be gripped is held, and a releasing mode of releasing the object to be gripped.

Abstract: A surgical instrument comprises: a treatment unit provided at one end of the insertion unit, capable of turning about one axis, and comprising a clamping section capable of opening and closing action; an operation unit provided at the other end of the insertion unit; a turn force transmission mechanism and transmitting a turn force as a force to turn the treatment unit; an opening and closing force transmission mechanism and transmitting an opening and closing force as a force to open and close the clamping section; and a common operation mechanism, provided in the operation unit, which can generate the turn force transmitted by the turn force transmission mechanism and which can also generate the opening and closing force transmitted by the opening and closing transmission mechanism.

Abstract: A surgical instrument comprises: a treatment unit provided at one end of the insertion unit, capable of turning about one axis, and comprising a clamping section capable of opening and closing action; an operation unit provided at the other end of the insertion unit; a turn force transmission mechanism and transmitting a turn force as a force to turn the treatment unit; an opening and closing force transmission mechanism and transmitting an opening and closing force as a force to open and close the clamping section; and a common operation mechanism, provided in the operation unit, which can generate the turn force transmitted by the turn force transmission mechanism and which can also generate the opening and closing force transmitted by the opening and closing transmission mechanism.

Abstract: A surgical instrument of the present invention comprises: an insertion unit, an operation unit provided at the proximal end side of the insertion unit, and a treatment unit provided at the other end of the insertion unit and having a clamping unit that can rotate about one axis and can perform an opening and closing action and a bending action. The operation unit comprises: an opening and closing lever for performing the operation of opening and closing the treatment unit, an angle variation dial for performing the operation of bending the treatment unit, and a rotation dial for performing the operation of rotating the treatment unit. The angle variation dial and rotation dial are provided within the operation range of the same operation finger.

Abstract: An imaging system includes: an optical-system holding member for holding an optical system to form an optical image of a subject; an imaging-device holding member for holding an imaging device to obtain the optical image formed by the optical system; a case for hermetically enclosing the optical-system holding member and the imaging-device holding member; a hermetic connector for hermetically sealing the case, the hermetic connector being electrically connected to the imaging device; a power generator for generating a driving force to move either of the optical-system holding member and the imaging-device holding member; and a driving-force transfer member for connecting the power generator and either the optical-system holding member or the imaging-device holding member to transfer the driving force of the power generator to either the optical-system holding member or the imaging-device holding member.

Abstract: An endoscope system includes a rigid endoscope including an optical system in a rigid insert section thereof, and a wiper sheath. The wiper sheath includes a wiper insert section receiving the insert section of the rigid endoscope, a wiper arranged on a distal end portion of the wiper insert section and enabled to be placed in contact with a distal-end face of the rigid endoscope received in the wiper insert section, and an operation unit, arranged at a proximal end portion of the wiper insert section, for switching the wiper between a contact state with the wiper placed to be in contact with the distal-end face of the rigid endoscope and a detached state with the wiper spaced apart from the distal-end face of the rigid endoscope, and for moving the wiper on and along the distal-end face of the rigid endoscope when the wiper is in the contact state.

Abstract: A surgical gripper includes a gripping section opened/closed to grip an object to be gripped and an operation section which opens/closes the gripping section, wherein the gripping section is configured to be opened/closed by the operation section to take a gripping mode of gripping the object to be gripped so that treatment is performed by the object to be gripped, an adjusting mode of gripping the object to be gripped by a gripping force lower than that of the gripping mode so that an arrangement of the object to be gripped is adjusted while the object to be gripped is held, and a releasing mode of releasing the object to be gripped.

Abstract: A three-dimensional observation apparatus is provided which includes an optical reflection member which reflects a light beam and converges the light beam after the reflection, and image projectors for right and left eyes which project a medical image for the right and left eyes on the optical reflection member and forms an exit pupil for the right and left eyes at a position apart from the optical reflection member by a predetermined distance. The apparatus also includes a holding member which keeps a positional relationship of the image projector for the right eye to the optical reflection member and a positional relationship of the image projector for the left eye to the optical reflection member.

Abstract: An imaging system includes: an optical-system holding member for holding an optical system to form an optical image of a subject; an imaging-device holding member for holding an imaging device to obtain the optical image formed by the optical system; a case for hermetically enclosing the optical-system holding member and the imaging-device holding member; a hermetic connector for hermetically sealing the case, the hermetic connector being electrically connected to the imaging device; a power generator for generating a driving force to move either of the optical-system holding member and the imaging-device holding member; and a driving-force transfer member for connecting the power generator and either the optical-system holding member or the imaging-device holding member to transfer the driving force of the power generator to either the optical-system holding member or the imaging-device holding member.

Abstract: A three-dimensional observation apparatus is provided which includes an optical reflection member which reflects a light beam and converges the light beam after the reflection, and image projectors for right and left eyes which project a medical image for the right and left eyes on the optical reflection member and forms an exit pupil for the right and left eyes at a position apart from the optical reflection member by a predetermined distance. The apparatus also includes a holding member which keeps a positional relationship of the image projector for the right eye to the optical reflection member and a positional relationship of the image projector for the left eye to the optical reflection member.

Abstract: A stereoscopic endoscope system includes a combined system of a stereoscopic endoscope unit and a camera unit. The stereoscopic endoscope unit has an insertion part and an observation part. The insertion part includes an objective lens and a relay lens in order from an object side, where the objective lens has a pair of first optical system and a second optical system which are arranged in parallel in an insertion direction, and a third optical system arranged in the insertion direction. The first optical system and the second optical system are for a stereoscopic vision observation, and the optical system has a viewing angle larger than that of the first and the second optical systems for observing a wider range than a that of the stereoscopic vision observation. The relay lens is arranged on the camera unit side of the objective lens.

Abstract: A surgical microscope apparatus incorporating a frame portion placed on a floor, a microscope body for stereoscopically observing a portion to be operated, an arm portion supported by the frame portion and arranged to suspend the microscope body, and an endoscope for observing a blind spot for a stereoscopic observation field of view. The frame portion has a light source unit for generating light for illuminating a portion observed with the endoscope and a camera control unit for processing an observed image of an observed portion obtained by the endoscope. A light guide fiber extending from the light source unit to the microscope body and capable of supplying light to the endoscope, and a camera cable for transmitting the image observed with the endoscope to the camera control unit extend in the arm portion. The microscope body is provided with an end of the light guide fiber for connecting the endoscope and a camera head connected to the camera cable.

Abstract: A stereoscopic endoscope system includes a combined system of a stereoscopic endoscope unit and a camera unit. The stereoscopic endoscope unit has an insertion part and an observation part. The insertion part includes an objective lens and a relay lens in order from an object side, where the objective lens has a pair of first optical system and a second optical system which are arranged in parallel in an insertion direction, and a third optical system arranged in the insertion direction. The first optical system and the second optical system are for a stereoscopic vision observation, and the optical system has a viewing angle larger than that of the first and the second optical systems for observing a wider range than a that of the stereoscopic vision observation. The relay lens is arranged on the camera unit side of the objective lens.

Abstract: A stereoscopic endoscope including an objective lens system for forming an image of an object which objective lens system is arranged at the front end of an inserting section and has a single optical axis; an image transmission device coaxially arranged with the objective lens system and adapted to transmit the image formed by the objective lens system; a pupil dividing device for dividing the image transmitted through the objective lens system and the image transmission device so as to obtain left and right images of the object; an image sensing device for picking up the left and right images obtained by the pupil dividing device; a first support structure containing at least the objective lens system; and a second support structure containing at least the pupil dividing device and the image sensing device, wherein the first and second support structures are rotatable relative to each other around an axis extending along the longitudinal dimension of the endoscope.

Abstract: A stereoscopic endoscope including an objective lens system for forming an image of an object which objective lens system is arranged at the front end of an inserting section and has a single optical axis; an image transmission device coaxially arranged with the objective lens system and adapted to transmit the image formed by the objective lens system; a pupil dividing device for dividing the image transmitted through the objective lens system and the image transmission device so as to obtain left and right images of the object; an image sensing device for picking up the left and right images obtained by the pupil dividing device; a first support structure containing-at least the objective lens system; and a second support structure containing at least the pupil dividing device and the image sensing device, wherein the first and second support structures are rotatable relative to each other around an axis extending along the longitudinal dimension of the endoscope.