Patents by Inventor Koji Yamaya

Koji Yamaya 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: 20090171156
    Abstract: An endoscope insertion support tool includes an advancing and retracting member that is disposed in an insertion section of an endoscope, capable of advancing and retracting in a hollow passage, a distal end portion of which communicates with the outside, and has length projected from a distal end of the insertion section, a balloon member that includes an attaching portion attachable to an outer surface side of the insertion section of the endoscope and is connected to the distal end of the advancing and retracting member and capable of projecting from the distal end of the insertion section according to an advancing and retracting movement of the advancing and retracting member, and a fluid supplying and discharging unit including a conduit that is connected to the balloon member and inflates and deflates the balloon member according to supply and discharge of a fluid to and from the balloon member.
    Type: Application
    Filed: June 1, 2006
    Publication date: July 2, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Koji Yamaya
  • Patent number: 7537561
    Abstract: An edge portion of an endoscope inserting portion includes an observation optical system, a first treatment-tool oscillating base which guides, in a first direction, a first treatment tool guided via a first channel for inserting the treatment tool, and a second treatment-tool oscillating base which guides, in a second direction, a second treatment tool guided via a second channel for inserting the treatment tool. Upon endoscope treatment for the lesion portion using the first and second treatment tools which are projected from the edge openings of two first and second channels for inserting the treatment tool and which are guided by the two first and second treatment-tool oscillating bases, one of the first and second treatment tools is moved to the outside of a field of view of an endoscope image as needed.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: May 26, 2009
    Assignee: Olympus Corporation
    Inventors: Koji Yamaya, Haruhiko Ueno, Koji Nakamoto, Hisao Yabe
  • Publication number: 20090067067
    Abstract: An optical axis restriction surface, which restricts movement of a first lens frame in an optical axis direction, and a fixing slit, which is located in rear of the optical axis restriction surface, are formed on an end portion of a second lens frame. Lens frame hold portions, which restrict rotation of the first lens frame about an optical axis and movement of the first lens frame in a right-and-left direction, are formed on both sides of the fixing slit. The lens frame hold portions are provided with assembly reference surfaces which restrict movement of the first lens frame in an up-and-down direction. An engaging portion, which is engaged with the fixing slit, and two projection portions, which come in contact with the assembly reference surfaces, are formed on the first lens frame.
    Type: Application
    Filed: May 30, 2008
    Publication date: March 12, 2009
    Inventor: Koji YAMAYA
  • Publication number: 20090062615
    Abstract: The invention provides an endoscope with a focal length varying function, which includes an observation window, an objective optical system which is disposed in the observation window and is capable of varying a focal length thereof, and an endo-therapy product raising base which is oscillatable between a stored position where the endo-therapy product raising base is stored in the distal end section body (endo-therapy product projection port) and a raised position where the endo-therapy product raising base is projected from the distal end section body in accordance with a raising operation on a proximal side, wherein at a time of a state in which the endo-therapy product raising base is projected from the distal end section body by a predetermined amount, a predetermined part of the endo-therapy product raising base is set to approximately correspond to a best focus position of the objective optical system.
    Type: Application
    Filed: May 27, 2008
    Publication date: March 5, 2009
    Inventor: Koji YAMAYA
  • Publication number: 20090054727
    Abstract: When a guide wire 5 is maximally raised on a treatment instrument raising stand 35, a distal point of the guide wire 5 is operated so as to be capable of always observing a papillary opening portion 7, which is a subject to be treated, from the front (in a basic position where the portion to be treated is positioned at the center of the field of view). The treatment instrument raising stand 35 is maximally raised in order that the tilt angle ? of the guide wire 5 is equal to the tilt angle ? of a central axis of a field of view of an observation window 30. Then, the guide wire 5 is fixed and a treatment instrument such as a drainage tube is replaced, whereby a treatment instrument can be easily and more safely replaced via the guide wire 5.
    Type: Application
    Filed: March 30, 2006
    Publication date: February 26, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Koji Yamaya
  • Patent number: 7491166
    Abstract: An endoscope includes a therapeutic instrument controlling base which is arranged to the distal portion of the inserting portion and controls such that a therapeutic instrument projected from the opening of a channel for inserting the therapeutic instrument at the distal portion of the inserting portion moves in the right and left directions of an observed image obtained by an observing unit, a controlling-base operating unit which is arranged to an operating section continuously arranged to the proximal side portion of the inserting portion and which can be operated in the right and left directions of an operator who grips the operating section, and a controlling-base operating mechanism which controls such that the therapeutic instrument controlling base moves in the right direction of the observed image according to the operation of the controlling-base operating unit in the right direction thereof by the operator who grips the operating section and controls such that the therapeutic instrument controlling
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: February 17, 2009
    Assignee: Olympus Corporation
    Inventors: Haruhiko Ueno, Yasuhito Kura, Koji Yamaya
  • Publication number: 20070232853
    Abstract: The present invention includes a first balloon member having a first hollow portion that allows an insertion portion of the endoscope to pass therethrough; a first transmission member that transmits an advance/retreat action performed by an operator to the first balloon member; a second balloon member having a second hollow portion that allows the insertion portion of the endoscope to pass therethrough; a second transmission member that transmits an advance/retreat action performed by an operator to the second balloon member; and a control portion that controls supply and exhaust of fluid to and from the inside of the first balloon member and the second balloon member to expand or contract the first balloon member and the second balloon member.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 4, 2007
    Applicant: Olympus Medical Systems Corp.
    Inventor: Koji Yamaya
  • Publication number: 20070112249
    Abstract: An endoscope of the present invention includes, a swing table operating portion configured to operate an instrument swing table on a user's side, and a control mechanism configured to control swinging of the instrument swing table so that, when operating the swing table operating portion at a constant speed, a swinging speed in the case where the distal end of the instrument led out of the distal end of the endoscope inserting portion is at a center of a screen of an endoscope image obtained by an observation unit is faster than the swinging speed in the case where the end of the instrument is in a peripheral part of the screen of the endoscope image.
    Type: Application
    Filed: January 11, 2007
    Publication date: May 17, 2007
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji Yamaya
  • Publication number: 20060235356
    Abstract: An endoscope treatment instrument stopper fitted in a channel opening of a treatment instrument insertion channel of an endoscope, includes a first stopper section having a first treatment instrument insertion hole into which a treatment instrument is inserted; a stopper frame having a stopper section fitting portion, fitted in the channel opening, having therein the first treatment instrument insertion hole of the first stopper section to be opposite the channel opening, and provided with a tearing capable of tearing the stopper frame removed from the channel opening; and a second stopper section having a second treatment instrument insertion hole into which the treatment instrument is inserted, removable from the stopper section fitting portion of the stopper frame, and formed so that the second treatment instrument insertion hole is opposite the first stopper section when the second stopper section is fitted in the stopper section fitting portion.
    Type: Application
    Filed: June 14, 2006
    Publication date: October 19, 2006
    Inventor: Koji Yamaya
  • Patent number: 6991602
    Abstract: A medical treatment method comprises orally inserting a first endoscope having a first treatment tool provided thereto into a body cavity, inserting a first insertion member insertion support tool from at least one of abdominal and transdermal cavities into the body cavity, inserting a second endoscope having a second treatment tool provided thereto into the body cavity through the first insertion member insertion support tool, grasping a lesioned part by the second treatment tool inserted into the body cavity by the second endoscope, cutting the lesioned part by the first treatment tool inserted into the body cavity by the first endoscope, and collecting the lesioned part.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: January 31, 2006
    Assignee: Olympus Corporation
    Inventors: Masaaki Nakazawa, Toshio Nakamura, Hidenobu Kimura, Tatsuya Furukawa, Koji Yamaya, Nobuyuki Matsuura, Hisao Yabe
  • Publication number: 20040267090
    Abstract: An endoscope includes a therapeutic instrument controlling base which is arranged to the distal portion of the inserting portion and controls such that a therapeutic instrument projected from the opening of a channel for inserting the therapeutic instrument at the distal portion of the inserting portion moves in the right and left directions of an observed image obtained by an observing unit, a controlling-base operating unit which is arranged to an operating section continuously arranged to the proximal side portion of the inserting portion and which can be operated in the right and left directions of an operator who grips the operating section, and a controlling-base operating mechanism which controls such that the therapeutic instrument controlling base moves in the right direction of the observed image according to the operation of the controlling-base operating unit in the right direction thereof by the operator who grips the operating section and controls such that the therapeutic instrument controlling
    Type: Application
    Filed: May 24, 2004
    Publication date: December 30, 2004
    Inventors: Haruhiko Ueno, Yasuhito Kura, Koji Yamaya
  • Patent number: 6824509
    Abstract: A treatment instrument passage channel through which a treatment instrument can be passed lies through an elongated insertion unit that is inserted into a body cavity or the like. The distal opening of the treatment instrument passage channel opens onto the distal part of the insertion unit. A treatment instrument swing stand having a hole, through which the distal part of a treatment instrument led out of the distal opening is passed, bored therein is disposed near the distal opening so that the treatment instrument swing stand can swing freely. The treatment instrument swing stand is manipulated by proximally pulling angling wires. Thus, the distal part of the treatment instrument is swung from a position near the center of a field of view in both the rightward and leftward directions of an endoscope. Thus, the mucosa of a lesion can be resected easily while being caught in the field of view.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: November 30, 2004
    Assignee: Olympus Corporation
    Inventors: Koji Yamaya, Koji Nakamoto, Hisao Yabe
  • Publication number: 20040106850
    Abstract: An edge portion of an endoscope inserting portion includes an observation optical system, a first treatment-tool oscillating base which guides, in a first direction, a first treatment tool guided via a first channel for inserting the treatment tool, and a second treatment-tool oscillating base which guides, in a second direction, a second treatment tool guided via a second channel for inserting the treatment tool. Upon endoscope treatment for the lesion portion using the first and second treatment tools which are projected from the edge openings of two first and second channels for inserting the treatment tool and which are guided by the two first and second treatment-tool oscillating bases, one of the first and second treatment tools is moved to the outside of a field of view of an endoscope image as needed.
    Type: Application
    Filed: November 24, 2003
    Publication date: June 3, 2004
    Applicant: Olympus Corporation
    Inventors: Koji Yamaya, Haruhiko Ueno, Koji Nakamoto, Hisao Yabe
  • Publication number: 20030135091
    Abstract: A medical treatment method comprises orally inserting a first endoscope having a first treatment tool provided thereto into a body cavity, inserting a first insertion member insertion support tool from at least one of abdominal and transdermal cavities into the body cavity, inserting a second endoscope having a second treatment tool provided thereto into the body cavity through the first insertion member insertion support tool, grasping a lesioned part by the second treatment tool inserted into the body cavity by the second endoscope, cutting the lesioned part by the first treatment tool inserted into the body cavity by the first endoscope, and collecting the lesioned part.
    Type: Application
    Filed: December 31, 2002
    Publication date: July 17, 2003
    Inventors: Masaaki Nakazawa, Toshio Nakamura, Hidenobu Kimura, Tatsuya Furukawa, Koji Yamaya, Nobuyuki Matsuura, Hisao Yabe
  • Publication number: 20030040657
    Abstract: A treatment instrument passage channel through which a treatment instrument can be passed lies through an elongated insertion unit that is inserted into a body cavity or the like. The distal opening of the treatment instrument passage channel opens onto the distal part of the insertion unit. A treatment instrument swing stand having a hole, through which the distal part of a treatment instrument led out of the distal opening is passed, bored therein is disposed near the distal opening so that the treatment instrument swing stand can swing freely. The treatment instrument swing stand is manipulated by proximally pulling angling wires. Thus, the distal part of the treatment instrument is swung from a position near the center of a field of view in both the rightward and leftward directions of an endoscope. Thus, the mucosa of a lesion can be resected easily while being caught in the field of view.
    Type: Application
    Filed: July 22, 2002
    Publication date: February 27, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Koji Yamaya, Koji Nakamoto, Hisao Yabe
  • Patent number: 6110104
    Abstract: An endoscope system having a cover type endoscope provided with an elongate inserting section having therein an observation device and an illuminating device and bulge portions formed on the outer periphery at the side of a forwardmost end of the inserting section; and an endoscope cover having an endoscope inserting passage for covering and protecting the inserting section. The endoscope inserting passage receives the inserting section using the bulge portions as a guide. The bulge portions project more than the outer periphery of the inserting section.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: August 29, 2000
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Akira Suzuki, Hisao Yabe, Yoshihiro Iida, Hideo Itoh, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Keiichi Arai, Hiroshi Ishii, Masaaki Nakazawa, Koji Yamaya, Yasuhito Kura
  • Patent number: 5879288
    Abstract: An endoscope system provided with an electronic or optical endoscope is provided therein with an illuminating optical system, an observation optical system, a flow passage system and a forceps channel. Cleaning and disinfection operations are performed on the endoscope so that the endoscope is reusable. An electronic or optical cover type endoscope is provided therein with an illuminating optical system and an observation optical system. The cover type endoscope is used with an endoscope cover having a flow passage system and a forceps channel mounted on the cover type endoscope. The endoscope cover is discarded and replaced whereby the cover type endoscope is reused. Peripheral equipment for endoscope inspection used in combination with the endoscopes is capable of being selectively connected to any of the endoscopes.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: March 9, 1999
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Akira Suzuki, Hisao Yabe, Yoshihiro Iida, Hideo Itoh, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Keiichi Arai, Hiroshi Ishii, Masaaki Nakazawa, Koji Yamaya, Yasuhito Kura
  • Patent number: 5876326
    Abstract: An electronic endoscope apparatus provided with an electronic endoscope having arranged thereon a solid-state image pickup element at an insertion portion, and external devices such as a light source device for supplying an illumination light to the electronic endoscope, a video processor for processing an electrical signal transmitted from the solid-state image pickup element of the electronic endoscope to produce a video signal. An electrical connection portion for electrically connecting the electronic endoscope and the video processor is provided at a connector portion which is provided at an end of a universal cord which connects the electronic endoscope and the light source device. An electromagnetic interference countermeasure member is provided which covers at least one of the connector portion, the universal cord and the external devices. A dual shield around a signal line is also provided which includes spirally-wound lead wires having different diameters and ends connected to video ground.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: March 2, 1999
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Koji Takamura, Takahiro Kishi, Hisao Yabe, Koji Yamaya, Masaaki Nakazawa, Hideo Ito, Hiroshi Ishii
  • Patent number: 5863286
    Abstract: In an endoscope system including an endoscope having an insertion section and an operation section and a disposable protection cover having an insertion section cover having formed therein a forceps channel and a forceps inlet opening through which a forceps can be inserted into the forceps channel, the forceps inlet opening is selectively closed by a forceps plug which is made of resilient material and separately formed from the insertion section cover. The forceps plug is preferably formed such that it can be detachably secured to a forceps inlet opening of an ordinary coverless (without-cover} endoscope.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: January 26, 1999
    Assignee: Olympus Optical Company, Ltd.
    Inventors: Hisao Yabe, Yoshihiro Iida, Akira Suzuki, Hideo Ito, Yoshio Tashiro, Minoru Yamazaki, Osamu Tamada, Masaaki Nakazawa, Koji Yamaya
  • Patent number: 5860913
    Abstract: In an endoscope of the present invention, while a cover indicator on a distal cover is aligned with a scope indicator on a main distal part, the distal cover is put on the main distal part in an axial direction at a certain insertion angle. Thereafter, the distal cover is rotated while being thrust in the axial direction. The stoppage of a locking convex part of a hook of the main distal part by a claw of a reinforcement member is released, and the locking convex part of the hook is positioned in a locking ditch of the reinforcement member. The head of the hook is constrained to move in the axial direction by means of a main distal cover that is an elastic member and the claw. The locking convex part is then fitted into the locking ditch reliably. Consequently, the distal cover can be fixed to the main distal part readily, freely detachably, and reliably with high positioning precision.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: January 19, 1999
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Koji Yamaya, Tatsuya Furukawa, Takahiro Kishi, Tsugio Okazaki, Haruhiko Kaiya, Hisao Yabe, Tsutomu Ishiguro