Patents by Inventor Nobuaki Akui

Nobuaki Akui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200037850
    Abstract: An endoscope bending portion is formed of a multilumen tube, and includes: two lumens through which a pair of bending operation wires for performing a bending operation in a first direction and in a second direction opposite to the first direction are individually inserted; and a bending direction restriction member configured to restrict bending in a direction of a second axis orthogonal to a first axis passing through a center axis in the first direction and the second direction.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Nobuaki AKUI
  • Publication number: 20190150709
    Abstract: There is provided an endoscope capable of realizing equal operability by either a left or right hand without upsizing an operation portion. For this purpose, an operation portion is formed in a bilaterally symmetrical shape; a suction button and a bending lever are disposed at a center in a left and right width direction of the operation portion facing each other; and respective arm portions are disposed in a state of being rotated around a central axis of the bending lever by a predetermined angle relative to up, down, left and right tilt directions defined for the bending lever.
    Type: Application
    Filed: January 29, 2019
    Publication date: May 23, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Nobuaki AKUI
  • Patent number: 10231605
    Abstract: There is provided an endoscope capable of realizing equal operability by either a left or right hand without upsizing an operation portion. For this purpose, an operation portion is formed in a bilaterally symmetrical shape; a suction button and a bending lever are disposed at a center in a left and right width direction of the operation portion facing each other; and respective arm portions are disposed in a state of being rotated around a central axis of the bending lever by a predetermined angle relative to up, down, left and right tilt directions defined for the bending lever.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: March 19, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Nobuaki Akui
  • Publication number: 20160331214
    Abstract: An endoscope includes: an operation portion including a grasping portion configured to be grasped by a user and having a first longitudinal axis; an insertion portion configured to be inserted into a subject, the insertion portion having a second longitudinal axis that has a predetermined acute angle with respect to the first longitudinal axis and extending from the operation portion at a position on a more distal end side with respect to a treatment instrument insertion portion provided at the grasping portion; and a cable including, at an extension end thereof, a connector portion configured to be detachably connected with an external device, the cable having a third longitudinal axis on an extended line of the first longitudinal axis and extending from a distal end side of the operation portion.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Applicant: OLYMPUS CORPORATION
    Inventors: Kiwamu FUJITANI, Tatsuhiko SUZUKI, Motohiro KURODA, Nobuaki AKUI, Reisuke OSADA, Chikayoshi MEGURO
  • Publication number: 20160309985
    Abstract: There is provided an endoscope capable of realizing equal operability by either a left or right hand without upsizing an operation portion. For this purpose, an operation portion is formed in a bilaterally symmetrical shape; a suction button and a bending lever are disposed at a center in a left and right width direction of the operation portion facing each other; and respective arm portions are disposed in a state of being rotated around a central axis of the bending lever by a predetermined angle relative to up, down, left and right tilt directions defined for the bending lever.
    Type: Application
    Filed: July 5, 2016
    Publication date: October 27, 2016
    Applicant: OLYMPUS CORPORATION
    Inventor: Nobuaki AKUI
  • Publication number: 20150366453
    Abstract: A measurement probe is configured to be detachably attached to an optical measurement apparatus. The measurement probe has at an end surface thereof exit ends of a plurality of optical fibers. The optical measurement apparatus includes: an imaging unit that receives rays of light transmitted from the exit ends of the plurality of optical fibers and performs photoelectric conversion in order to generate and output an electric signal; and a partition unit that optically isolates paths for the rays of light transmitted from the exit ends of the plurality of optical fibers, from one another in a space from the end surface to a light reception surface of the imaging unit. The partition unit comes into contact with the end surface at one end of the partition unit, and comes into contact with the light reception surface of the imaging unit at another end of the partition unit.
    Type: Application
    Filed: September 1, 2015
    Publication date: December 24, 2015
    Inventors: Seiki TORIYAMA, Nobuaki AKUI
  • Patent number: 8953031
    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.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: February 10, 2015
    Assignee: Olympus Medical Systems Corp.
    Inventors: Nobuaki Akui, Satoshi Takekoshi
  • Patent number: 8932209
    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. The device further includes a light scattering section provided between the proximal side fiber portion and the outer envelope tube in the radial directions to scatter the beam of light.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: January 13, 2015
    Assignee: Olympus Medical Systems Corp.
    Inventors: Nobuaki Akui, Yuji Sakai
  • Patent number: 8926500
    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.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 6, 2015
    Assignee: Olympus Medical Systems Corp.
    Inventor: Nobuaki Akui
  • Publication number: 20140194693
    Abstract: An endoscope apparatus includes: a laser light source that generates laser light; an optical fiber that guides laser light inputted to a proximal end and applies the laser light to a subject from a distal end; an actuator swinging a distal end portion of the optical fiber; the conductive wire provided in close contact with the optical fiber, and connected to the actuator; a signal generator that generates a drive signal for driving the actuator, the drive signal being conducted by the conductive wire; a detection circuit that detects a current flowing in the conductive wire when the signal generator generates the drive signal, and detects that the conductive wire is broken, based on the detected current value; and a controller that controls an amount of illuminating light based on a result of determination of whether or not the conductive wire is broken in the detection circuit.
    Type: Application
    Filed: February 19, 2014
    Publication date: July 10, 2014
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Katsuichi IMAIZUMI, Nobuaki AKUI, Mitsuhiro ITO
  • Publication number: 20140073950
    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.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Nobuaki Akui, Yuji Sakai
  • Publication number: 20130345508
    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.
    Type: Application
    Filed: June 27, 2013
    Publication date: December 26, 2013
    Inventor: Nobuaki AKUI
  • Publication number: 20130258081
    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.
    Type: Application
    Filed: March 5, 2013
    Publication date: October 3, 2013
    Inventors: Nobuaki AKUI, Satoshi TAKEKOSHI
  • Publication number: 20110230718
    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.
    Type: Application
    Filed: March 28, 2011
    Publication date: September 22, 2011
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Nobuaki AKUI
  • Patent number: 7959561
    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.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: June 14, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventors: Nobuaki Akui, Kazuo Banju, Takumi Dejima
  • Patent number: 7854749
    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.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: December 21, 2010
    Assignee: Olympus Corporation
    Inventors: Kazuo Banju, Shuhei Iizuka, Manabu Miyamoto, Nobuaki Akui
  • Patent number: 7794470
    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.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: September 14, 2010
    Assignee: Olympus Corporation
    Inventors: Manabu Miyamoto, Kazuo Banju, Nobuaki Akui, Shuhei Iizuka
  • Publication number: 20060292917
    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.
    Type: Application
    Filed: July 27, 2006
    Publication date: December 28, 2006
    Applicant: OLYMPUS CORPORATION
    Inventors: Manabu Miyamoto, Kazuo Banju, Nobuaki Akui, Shuhei Iizuka
  • Publication number: 20060259073
    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.
    Type: Application
    Filed: July 20, 2006
    Publication date: November 16, 2006
    Inventors: Manabu Miyamoto, Kazuo Banju, Nobuaki Akui, Shuhei Iizuka
  • Patent number: 7125378
    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.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: October 24, 2006
    Assignee: Olympus Corporation
    Inventors: Masami Shimizu, Masahiro Hagihara, Masaki Takayama, Satoshi Takekoshi, Nobuaki Akui, Kazuo Banju, Ichiro Ikari, Hiroyuki Kuroda