Patents by Inventor Teruo Ouchi

Teruo Ouchi 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).

  • Patent number: 7857749
    Abstract: A tubular treatment tool is provided for an endoscope. The tubular treatment tool includes a flexible tubular member. A groove is formed on the flexible tubular member and traverses the flexible tubular member along the diameter. An operation wire is provided in the flexible tubular member. The operation wire is movable relative to the flexible tubular member along an axis of the flexible tubular member. A distal end of the operation wire is secured to the flexible tubular member at a position on a distal end side with respect to the groove. A tissue collecting device is secured at the distal end of the flexible tubular member.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: December 28, 2010
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7766908
    Abstract: A high-frequency treating instrument for an endoscope, includes: a spatula-form high-frequency electrode which is adapted to be protruded from and housed within an insulated flexible sheath of the endoscope; and a concavo-convex portion which serves as an antiskid member when the concavo-convex portion is brought into contact with a mucous membrane and is formed on at least one of side edge portions of a portion closer to a tip end of the high-frequency electrode.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: August 3, 2010
    Assignee: Hoya Coporation
    Inventor: Teruo Ouchi
  • Patent number: 7749156
    Abstract: A retractable treatment instrument for an endoscope is provided. The retractable treatment instrument includes a flexible sheath configured such that at least a tip portion thereof is formed of a flexible tube, an operation wire inserted in the flexible sheath so as to be movable along an axial direction of the operation wire in the flexible sheath, and a front-end treatment member attached to a tip of the operation wire. In this structure, the front-end treatment member is movable back and forth along the axial direction with respect to a tip of the flexible sheath. The front-end treatment member has a wide part elongated in a radial direction of the flexible tube to press and broaden the flexible tube from an inside of the flexible tube.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: July 6, 2010
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7611457
    Abstract: An endoscope having an inserted portion, which is to be inserted into a tubular organ, including a bendable portion that is adapted to bend arbitrarily by a remote operation and a distal unit with a window for observation to capture an image of inside the tubular organ, is provided. A plurality of grooves are formed in parallel with an axis of the distal unit on a circumferential surface of the distal unit and the grooves are spaced from each other.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: November 3, 2009
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7497826
    Abstract: An endoscopic high-frequency knife includes immediately hood which is mounted to a distal end member fixed at a distal end of an endoscope to surround an end surface of the distal end member, an objective window being positioned on the end surface of the distal end member; a transparent hood portion which is formed on the hood to project forward from a portion of the hood in a vicinity of the end surface while being gradually curved inwards so as to cover the front of the end surface in a direction away from the end surface; and a high-frequency cutting electrode attached to the hood in a vicinity of a tip of the transparent hood portion, the high-frequency cutting electrode projecting forward from the transparent hood portion.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: March 3, 2009
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7458973
    Abstract: A high-frequency snare for an endoscope includes an electrically insulating sheath, an operation wire slidably inserted through the sheath, a plurality of resilient twisted wires. Proximal ends of the plurality of twisted wires are connected to the distal end of the operation wire. Distal ends of the plurality of twisted wires are deposited with each other within an atmosphere of inactive gas. A proximal end side of the deposited ends of the plurality of wires being connected together with a metallic connecting member. When the operation wire is operated to withdraw at least proximal side portions of the plurality of twisted wires, the twisted wires are tucked. The plurality of twisted wires are expanded to form a loop with resilience thereof when the plurality of twisted wires are protruded from the sheath.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: December 2, 2008
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7402162
    Abstract: A high frequency treatment instrument for an endoscope is provided. The high frequency treatment instrument is provided with an insulative flexible sheath, an operation wire inserted in the flexible sheath so as to be movable along an axial direction of the operation wire in the flexible sheath, and a hook-like electrode attached to a tip of the operation wire. The hook-like electrode includes a rod-like part which is elongated in parallel with the axial direction along a line shifted from an axis line of the operation wire, and a hook part elongated from the rod-like part to cross the axis line of the operation wire.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: July 22, 2008
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7387632
    Abstract: A snare for an endoscope includes a flexible sheath, a control wire movable within the flexible sheath, and a snare loop connected to an end of the control wire, wherein when the control wire is axially advanced, the snare loop projects from the flexible sheath and expands into a loop shape, whereas when the control wire is axially retracted, the snare loop retracts into the flexible sheath and is folded into a closed shape. A resilient wire which forms the snare loop includes a hook portion protruding in a lateral direction of the snare loop. The resilient wire includes a biasing portion which biases the distal end of the resilient wire from a tip end to a base end of the hook portion to press the distal end of the resilient wire against an inner surface of the flexible sheath when the resilient wire is retracted.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: June 17, 2008
    Assignee: Hoya Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7351201
    Abstract: A treatment instrument for an endoscope includes: a front end hood that is provided to a distal end of an inserting portion of the endoscope; a supporting member that is provided inside the front end hood; a treatment member that is rotatably supported by the supporting member; and an operating wire that is coupled to the treatment member and extended rearwardly from the front end hood. The treatment member is rotated about the supporting member by operating to extract and retract the operating wire at a base side of the endoscope.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: April 1, 2008
    Assignees: PENTAX Corporation
    Inventors: Teruo Ouchi, Makoto Kobayashi
  • Patent number: 7347860
    Abstract: An endoscope for high-frequency treatment includes a flexible inserting section and an operation unit connected thereto. At least one terminal is provided to the operation unit and is connected to a high-frequency power supply. The endoscope further includes a hood having at least one treatment electrode for the high-frequency treatment and at least one contact, which are connected with at least one conductive line. The endoscope further includes a tip unit provided to a tip end of the inserting section. The tip unit has a hood receiving portion to which the hood is detachably coupled and one power supply electrode which contacts the at least one contact of the hood when the hood is coupled to the tip unit. The at least one power supply electrode is connected with the at least one terminal provided to the operation unit through a conductive wire which is inserted in the inserting section.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: March 25, 2008
    Assignee: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20080033237
    Abstract: A high-frequency treatment tool for an endoscope includes a transparent hood that can be detachably coupled to a distal end of an endoscope provided with two electrodes. Two high-frequency electrodes are provided at a tip end of the transparent hood and two contacts, each configured to electrically contact one of the two electrodes of the endoscope are provided. Two conductive members are electrically connectable to the two high-frequency electrodes and the two contacts, the two conductive members being arranged to be located at an inner position with respect to an outer surface of the transparent hood.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 7, 2008
    Applicant: PENTAX CORPORATION
    Inventor: Teruo OUCHI
  • Patent number: 7303561
    Abstract: A high-frequency treatment tool for an endoscope is provided with a transparent hood to be detachably coupled to a distal end of an endoscope provided with at least one electrode, at least one high-frequency electrode provided at a tip end of the transparent hood, at least one contact which is to electrically contact the at least one electrode of the endoscope, and at least one conductive member that electrically connects the at least one high-frequency electrode and the at lease one contact. The at least one conductive member is arranged to be located at an inner position with respect to an outer surface of the transparent hood.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: December 4, 2007
    Assignee: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Patent number: 7276066
    Abstract: A medical treatment instrument for an endoscope includes: an insulated sheath; a treatment member that is provided at a distal end of the sheath; and a wire loop that surround the treatment member and is capable of expansion and contraction by an operation at a proximal side of the sheath.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: October 2, 2007
    Assignee: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20060173241
    Abstract: An endoscope having an inserted portion, which is to be inserted into a tubular organ, including a bendable portion that is adapted to bend arbitrarily by a remote operation and a distal unit with a window for observation to capture an image of inside of the tubular organ, is provided. At least one protrusion is formed on a outer peripheral surface of the bendable portion.
    Type: Application
    Filed: January 13, 2006
    Publication date: August 3, 2006
    Applicant: PENTAX Corporation
    Inventors: Teruo Ouchi, Makoto Kobayashi
  • Publication number: 20060161046
    Abstract: An endoscope having an inserted portion, which is to be inserted into a tubular organ, including a bendable portion that is adapted to bend arbitrarily by a remote operation and a distal unit with a window for observation to capture an image of inside the tubular organ, is provided. A plurality of grooves are formed in parallel with an axis of the distal unit on a circumferential surface of the distal unit and the grooves are spaced from each other.
    Type: Application
    Filed: January 13, 2006
    Publication date: July 20, 2006
    Applicant: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20060050143
    Abstract: A high-frequency treatment tool for an endoscope including a sheath and an electrode is provided. The sheath is e inserted through a forceps channel of the endoscope, and is made of electrically insulating material. A high frequency electrical current is supplied to the electrode for the high-frequency treatment. At least a part of the endoscope to be contacted with mucous membrane is formed with a coating of one of gold, platinic metal and its alloy.
    Type: Application
    Filed: September 6, 2005
    Publication date: March 9, 2006
    Applicant: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20060052775
    Abstract: A high-frequency snare for an endoscope includes an electrically insulating sheath, an operation wire slidably inserted through the sheath, a plurality of resilient twisted wires. Proximal ends of the plurality of twisted wires are connected to the distal end of the operation wire. Distal ends of the plurality of twisted wires are deposited with each other within an atmosphere of inactive gas. A proximal end side of the deposited ends of the plurality of wires being connected together with a metallic connecting member. When the operation wire is operated to withdraw at least proximal side portions of the plurality of twisted wires, the twisted wires are tucked. The plurality of twisted wires are expanded to form a loop with resilience thereof when the plurality of twisted wires are protruded from the sheath.
    Type: Application
    Filed: September 6, 2005
    Publication date: March 9, 2006
    Applicant: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20050222567
    Abstract: A high-frequency treating instrument for an endoscope, includes: a spatula-form high-frequency electrode which is adapted to be protruded from and housed within an insulated flexible sheath of the endoscope; and a concavo-convex portion which serves as an antiskid member when the concavo-convex portion is brought into contact with a mucous membrane and is formed on at least one of side edge portions of a portion closer to a tip end of the high-frequency electrode.
    Type: Application
    Filed: March 22, 2005
    Publication date: October 6, 2005
    Applicant: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20050215853
    Abstract: A retractable treatment instrument for an endoscope is provided. The retractable treatment instrument includes a flexible sheath configured such that at least a tip portion thereof is formed of a flexible tube, an operation wire inserted in the flexible sheath so as to be movable along an axial direction of the operation wire in the flexible sheath, and a front-end treatment member attached to a tip of the operation wire. In this structure, the front-end treatment member is movable back and forth along the axial direction with respect to a tip of the flexible sheath. The front-end treatment member has a wide part elongated in a radial direction of the flexible tube to press and broaden the flexible tube from an inside of the flexible tube.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 29, 2005
    Applicant: PENTAX Corporation
    Inventor: Teruo Ouchi
  • Publication number: 20050215996
    Abstract: A high frequency treatment instrument for an endoscope is provided. The high frequency treatment instrument is provided with an insulative flexible sheath, an operation wire inserted in the flexible sheath so as to be movable along an axial direction of the operation wire in the flexible sheath, and a hook-like electrode attached to a tip of the operation wire. The hook-like electrode includes a rod-like part which is elongated in parallel with the axial direction along a line shifted from an axis line of the operation wire, and a hook part elongated from the rod-like part to cross the axis line of the operation wire.
    Type: Application
    Filed: March 23, 2005
    Publication date: September 29, 2005
    Applicant: PENTAX Corporation
    Inventor: Teruo Ouchi