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: 20180116491
    Abstract: The insertion device is adapted to hold a high-frequency treatment tool for performing high-frequency current treatment, by means of a distal-end component of a flexible tube for insertion into lumens. The insertion device includes: a first indicator disposed on the front portion of the distal-end component; a first cover formed of an insulating elasto-plastic material and covering the first indicator at the time of the prescribed attachment; an electrical insulation part as a second indicator disposed at the joint portion between the distal-end component and the flexible tube; and a second cover closely contacting the first cover and the electrical insulation part to apply an elastic force to each of them and covering the second indicator at the time of the prescribed attachment so that the leakage of high-frequency currents is prevented.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20180092514
    Abstract: A distal cover being attached to a distal configuration portion provided on a distal side of an insertion section to be inserted into a body, a ring-shaped first cover which is made of an insulating material and which has a lock portion that is removably locked to the distal configuration portion; and a ring-shaped second cover which is made of an insulating material that is more flexible than the first cover and which is provided more on a proximal side than the first cover.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 5, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji Yamaya
  • Patent number: 9931029
    Abstract: A washing system includes a cylindrical body portion which is prepared for each kind of insertion portion and a supply hole portion which is provided in the body portion to communicate with the inside of the body portion and which supplies a fluid to an opening portion of an insertion portion housed in the body portion. The washing system includes a supply mechanism which is shared by the body portion corresponding to each insertion portion that is prepared which supplies the fluid to the supply hole portion and which is attachable to and detachable from the supply hole portion.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: April 3, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Koji Yamaya
  • Publication number: 20180035869
    Abstract: In the insertion device, the entire traction wire coupled with the swing base in the distal end constituting section is covered with a tubular elastic member in a watertight manner, and the elastic member is fixed at a position that is away from the opening of the treatment tool channel hole toward the proximal side by a predetermined distance in the longitudinal axis direction. The traction wire is not exposed to the outside, a contaminated fluid and the like do not adhere thereto during treatment, and the wrinkle of the elastic member shrunk at the time of raising the swing base is accommodated in the space created at a predetermined distance.
    Type: Application
    Filed: October 18, 2017
    Publication date: February 8, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170265722
    Abstract: An assistance tool that assists in moving a treatment device is provided. The assistance tool includes a flexible tube in which an insertion path is formed to insert the treatment device that is inserted into a channel in an insertion portion of an endoscope, a tube member that is coupled to the flexible tube and has a curved portion halfway of an overall length and in which an insertion path for the treatment device is formed, a coupling portion that is coupled to the tube member and is formed to couple the channel to the insertion path, and a holding portion that is attached to the flexible tube and holds the insertion portion or an operation portion that is coupled to the insertion portion.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170265723
    Abstract: An assist device which is applied to a treatment instrument including an insertion body to be inserted through a channel of an endoscope, and which is configured to assist movement of the insertion body relative to the channel, includes: a flexible tube including a passage into which the insertion body of the treatment instrument is inserted; a connector provided on the flexible tube and configured to connect to the endoscope to allow communication between the channel and the passage; a first retainer provided on the flexible tube and configured to hold an outer circumference of an insertion section of the endoscope or an outer circumference of an operation section connected to the insertion section; and a second retainer being movable relative to the first retainer and configured to hold the insertion body of the treatment instrument.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170215709
    Abstract: An assist device includes: a connecting section communicatively connected to the channel; a holding section attached to an outer side of either the insertion section of the endoscope or an operation section connected to the insertion section; and a flexible section forming an insertion path through which the treatment instrument is inserted, and including an expansion-and-contraction section including a more deformable structure than any other parts in an entire length between one end and another end of the flexible section. The flexible section is connected to the connecting section at the one end and connected to the holding section at the another end.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170215705
    Abstract: An endoscope including an insertion portion which is provided with a channel to insert a treatment instrument therethrough, an operation portion which is operated the insertion portion, and an operation lever which holds and moves the treatment instrument to transmit force of the operation to the treatment instrument; and an assistant instrument which assists the movement of the treatment instrument, the assistant instrument comprising a flexible tube in which the insertion path is formed to insert the treatment instrument, a coupling portion which is formed so that the channel is coupled to the insertion path, and a holding portion which is attached to the vicinity of the other end of the flexible tube and which holds the operation portion so that the other end of the flexible tube faces toward the side where the operation lever is disposed.
    Type: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170182520
    Abstract: The distal end portion of an insertion device is fitted into the cylindrical, hollow main body of the washing instrument. A plurality of washing ports are disposed separately from each other on the inner surface of the washing instrument main body. Washing liquids are ejected from the washing ports to a swing base at the distal end portion and its periphery in different directions for washing. When the distal end portion is detached, washing water is sprayed over a shielding wall surface, which is part of the inner surface of the washing instrument main body, to reduce the momentum of the washing liquids and thus prevent the liquids from splashing to the outside.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170181611
    Abstract: A washing instrument for an insertion device performs positioning of a distal portion by an axial direction regulating portion provided in a cylindrical hollow washing instrument main body and abutting on the distal portion of the insertion device, and a rotating direction regulating portion facing an observation surface of the insertion device, thereby attaching the insertion device. A raised distal portion of a swing base received in a receiving chamber of the distal portion abuts on a projecting locking portion provided on an inner peripheral surface between the washing ports, the locking portion and the axial direction regulating portion hold a positioned state of the distal portion, and washing liquids jetting out from the washing ports directly collide with washing target regions of the receiving chamber to perform washing.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170181612
    Abstract: A washing instrument comprises a washing instrument body to which a distal configuration portion of an insertion device is attached, a three-way cock which communicates with both a first washing opening and a second washing opening that spout out a washing liquid at different positions inside a receiving chamber of the distal configuration portion and thus switches communication directions and which adjusts a liquid supply volume, a liquid supply function comprising a syringe coupling portion having a syringe to supply the washing liquid and a check valve, and a movement regulating portion which positions the distal configuration portion at a position where the washing liquid is directly spouted out from the first washing opening and the second washing opening to a swing base that is provided in the receiving chamber and that swings the movement direction of the extension of a treatment instrument.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Patent number: 9675234
    Abstract: A sealability acquiring mechanism disposed in a medical apparatus has a raising base unit constituted of a raising base operating mechanism, a raising tube path portion, a guide tube and a raising base. In the raising tube path portion, there is disposed a sealing member that is water-tightly or air-tightly fixed to a wire fixing portion to be connected to a raising wire inserted into an outer peripheral member and the outer peripheral member, a fluid supplied from an opening of the outer peripheral member flows between an inner peripheral surface of a raising tube path and an outer peripheral surface of the sealing member, and the raising base operating mechanism is water-tightly or air-tightly separated from the raising tube path.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: June 13, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Masayo Tsumaru, Toshio Nakamura, Tatsuya Furukawa, Koji Yamaya, Seiji Saito, Tetsuhiro Yamada, Kahori Yasunaga
  • Publication number: 20170150877
    Abstract: A washing system includes a cylindrical body portion which is prepared for each kind of insertion portion and a supply hole portion which is provided in the body portion to communicate with the inside of the body portion and which supplies a fluid to an opening portion of an insertion portion housed in the body portion. The washing system includes a supply mechanism which is shared by the body portion corresponding to each insertion portion that is prepared which supplies the fluid to the supply hole portion and which is attachable to and detachable from the supply hole portion.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20170020370
    Abstract: A transmission mechanism includes a pulling and pressing member including a distal end portion coupled with a raising stand and a proximal end portion coupled with a raising operation unit and a containing portion containing the pulling and pressing member with the distal end portion of the pulling and pressing member projecting therefrom. The transmission mechanism further includes an elastic member that the distal end portion side of the pulling and pressing member projecting from the containing portion is inserted into the cylindrical elastic member.
    Type: Application
    Filed: October 6, 2016
    Publication date: January 26, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Koji YAMAYA
  • Publication number: 20160150946
    Abstract: A sealability acquiring mechanism disposed in a medical apparatus has a raising base unit constituted of a raising base operating mechanism, a raising tube path portion, a guide tube and a raising base. In the raising tube path portion, there is disposed a sealing member that is water-tightly or air-tightly fixed to a wire fixing portion to be connected to a raising wire inserted into an outer peripheral member and the outer peripheral member, a fluid supplied from an opening of the outer peripheral member flows between an inner peripheral surface of a raising tube path and an outer peripheral surface of the sealing member, and the raising base operating mechanism is water-tightly or air-tightly separated from the raising tube path.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Applicant: OLYMPUS CORPORATION
    Inventors: Masayo TSUMARU, Toshio NAKAMURA, Tatsuya FURUKAWA, Koji YAMAYA, Seiji SAITO, Tetsuhiro YAMADA, Kahori YASUNAGA
  • Patent number: 8246534
    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: Grant
    Filed: March 30, 2006
    Date of Patent: August 21, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventor: Koji Yamaya
  • Patent number: 8147401
    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: Grant
    Filed: June 1, 2006
    Date of Patent: April 3, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventor: Koji Yamaya
  • Patent number: 8031416
    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: Grant
    Filed: May 30, 2008
    Date of Patent: October 4, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Koji Yamaya
  • Patent number: 7959559
    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: Grant
    Filed: March 28, 2007
    Date of Patent: June 14, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventor: Koji Yamaya
  • Publication number: 20100069712
    Abstract: A mother-baby endoscope includes: a lateral-view mother endoscope housing a treatment instrument raising stand in a distal end portion and including a treatment instrument insertion channel disposed in an insertion portion and opening toward the treatment instrument raising stand; and a baby endoscope including an insertion portion having a bending portion disposed on a distal end side, the insertion portion being inserted into the treatment instrument insertion channel of the mother endoscope and guided into a body cavity for observing or treating a region to be inspected. When the insertion portion of the baby endoscope is protruded by approximately 20 millimeters from an observation window of the mother endoscope in an observation direction, a proximal end surface of the bending portion of the baby endoscope is set to be located on a more proximal end side than an opening portion of the treatment instrument insertion channel.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Koji Yamaya