Patents by Inventor Tsutomu Okada

Tsutomu Okada 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: 20210307768
    Abstract: Provided is an endoscopic treatment tool including: a sheath that has a longitudinal axis; a first operation wire and a second operation wire that are inserted through the sheath so as to be able to be moved forward and backward; a treatment part constituted by a first wire rod and a second wire rod that have lower bending rigidity than bending rigidity of the second operation wire; a first joint part inside which the second wire rod passes and that joins a distal-end section of the first operation wire and a proximal-end section of the first wire rod; and a second joint part that joins a distal-end section of the second operation wire and a proximal-end section of the second wire rod.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 7, 2021
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 11099141
    Abstract: A higher accuracy beam hardening correction with a low calculation load is performed with objects whose elements have a wider range of effective atomic numbers Zeff, thereby contributing to presentation of more quantitative X-ray images. Of two or more X-ray energy bins, two X-ray bins are selected to normalize X-ray attenuation amount ?t in those bins such that one or more normalized X-ray attenuation amounts are obtained at each pixel areas. From reference information indicating a theoretical relationship of correspondence between the normalized X-ray attenuation amounts and effective atomic numbers of elements, one ore more effective atomic numbers are estimated every pixel area. Among the one or more effective atomic numbers (ZHigh, ZLow) and an effective atomic number (Zm) preset for the beam hardening correction, two or more atomic numbers are subjected to their equality determination.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 24, 2021
    Assignee: JOB Corporation
    Inventors: Tsutomu Yamakawa, Shuichiro Yamamoto, Masahiro Okada
  • Publication number: 20210113226
    Abstract: An endoscope treatment tool includes: a sheath; an operating wire in the sheath; a gripping portion provided at a distal end of the operating wire and having one or more wires; a tip attached to a distal end of the sheath; and a resin member disposed at a position adjacent to the tip on a radially inner or outer side thereof, wherein the tip includes clearance grooves extending toward a proximal end of the tip from a distal end of the tip, passing therethrough from an inner circumferential surface of the tip to an outer circumferential surface of the tip, and having sizes enabling the wires to pass therethrough, and at least proximal-end sides of the grooves overlap with the member in a radial direction of the tip and a distal end of the member is disposed farther on a distal-end side than proximal ends of the grooves are.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 22, 2021
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 10932801
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket section protruding from the lumen and having an elastic wire; and an operating wire. The elastic wire has: a maximum section where the outer diameter of the basket section is largest of the elastic wire; a first section that, in a lateral view from a direction orthogonal to a normal from the maximum section to the central axis of the basket section, is largest on the opposite side of the central axis from the maximum section between the maximum section and the proximal end; and a second section that is largest at a position away from the normal between the maximum section and the first section, and in the front view, the first section is located on the opposite side of a straight line orthogonal to the normal at the central axis from the maximum section side.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 2, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Tsutomu Okada, Hiroyuki Morishita
  • Publication number: 20210015349
    Abstract: A medical device includes: a sheath; a first bending portion provided at a distal end side of the sheath; a second bending portion provided between the first bending portion and the sheath; a first wire fixed to a first wire fixing portion provided at a distal end side of the first bending portion and inserted in the sheath toward a proximal end side of the sheath; and a second wire fixed to a second wire fixing portion provided between the first bending portion and the second bending portion and inserted in the sheath toward the proximal end side of the sheath, wherein a part of the first wire positioned in the first bending portion and a part of the first wire positioned in the second bending portion have straightness, and at least a part of the second wire positioned in the second bending portion has straightness.
    Type: Application
    Filed: October 5, 2020
    Publication date: January 21, 2021
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 10792556
    Abstract: A baseball game board includes: a main body unit simulating a baseball stadium and including an upper surface plate; a pitching unit configured to pitch a ball to allow the ball to move while floating in air; a batting unit configured to hit the ball; and a selection unit configured to gradationally select a ball height of the ball at a time of passing through the batting unit. In accordance with a selection result of the selection unit, a trajectory of the ball shot from the pitching unit is changed.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: October 6, 2020
    Assignee: EPOCH COMPANY, LTD.
    Inventors: Nozomu Furuta, Tsutomu Okada
  • Patent number: 10561430
    Abstract: Basket type grasping forceps include a sheath, a main body section, and a manipulation section, the main body section includes a basket section and a manipulation wire, the basket section includes a plurality of basket wires and a distal fixing member fixed to the plurality of basket wires, and the distal fixing member has a wire-fixing section to which a first wire serving which is at least one of the plurality of basket wires is fixed, and a high-strength fixing section to which a second wire which is at least another one of the plurality of basket wires is fixed more strongly than a fixing strength of the first wire in the wire-fixing section.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: February 18, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20190308093
    Abstract: A baseball game board includes: a main body unit simulating a baseball stadium and including an upper surface plate; a pitching unit configured to pitch a ball to allow the ball to move while floating in air; a batting unit configured to hit the ball; and a selection unit configured to gradationally select a ball height of the ball at a time of passing through the batting unit. In accordance with a selection result of the selection unit, a trajectory of the ball shot from the pitching unit is changed.
    Type: Application
    Filed: April 9, 2019
    Publication date: October 10, 2019
    Applicant: EPOCH COMPANY, LTD.
    Inventors: Nozomu FURUTA, Tsutomu OKADA
  • Patent number: 10349962
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket portion being configured to protrude from the lumen and formed of at least one elastic wire; and a manipulation wire causing the basket portion to be moved, wherein the elastic wire has a maximum-outer-diameter portion between distal and proximal ends of the elastic wire and a largest portion that, between the maximum-outer-diameter portion and the proximal end of the elastic wire, reaches the maximum size in an opposite direction from maximum-outer-diameter portion in a side view from a direction orthogonal to a perpendicular line drawn to a center axis from the maximum-outer-diameter portion, and wherein, in a front view of the basket portion, the largest portion is positioned on an opposite side from the side of the maximum-outer-diameter portion with respect to a straight line that is orthogonal to the perpendicular line on the center axis.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 16, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 10238407
    Abstract: A binding part of a basket-type grasping forceps includes: a first binding part to which proximal ends of first wires that are some of a plurality of basket wires are fixed; and a second binding part to which proximal ends of second wires not connected to the first binding part among the plurality of basket wires are fixed, which is engaged with the first binding part to be separable from the first binding part, is containable inside a sheath along with the first binding part in a state in which the second binding part is engaged with the first binding part, and is held by an inner surface of the sheath to be inseparable from the first binding part in the sheath.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: March 26, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 10182835
    Abstract: A stone extraction fragmentation device of the present invention include: a stone extraction operation section having a first main body and a gripping section; and a fragmentation operation section having a second main body, a moving body which is capable of being connected with the first main body, and a rotating knob which is configured to move the moving body with respect to the second main body, wherein the moving body is configured to move the first main body in a direction away from the second main body by rotation of the rotating knob.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 22, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20180317945
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket section protruding from the lumen and having an elastic wire; and an operating wire. The elastic wire has: a maximum section where the outer diameter of the basket section is largest of the elastic wire; a first section that, in a lateral view from a direction orthogonal to a normal from the maximum section to the central axis of the basket section, is largest on the opposite side of the central axis from the maximum section between the maximum section and the proximal end; and a second section that is largest at a position away from the normal between the maximum section and the first section, and in the front view, the first section is located on the opposite side of a straight line orthogonal to the normal at the central axis from the maximum section side.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Applicant: OLYMPUS CORPORATION
    Inventors: Tsutomu OKADA, Hiroyuki MORISHITA
  • Publication number: 20180280042
    Abstract: An endoscope treatment tool includes: a sheath having a lumen; a basket portion being configured to protrude from the lumen and formed of at least one elastic wire; and a manipulation wire causing the basket portion to be moved, wherein the elastic wire has a maximum-outer-diameter portion between distal and proximal ends of the elastic wire and a largest portion that, between the maximum-outer-diameter portion and the proximal end of the elastic wire, reaches the maximum size in an opposite direction from maximum-outer-diameter portion in a side view from a direction orthogonal to a perpendicular line drawn to a center axis from the maximum-outer-diameter portion, and wherein, in a front view of the basket portion, the largest portion is positioned on an opposite side from the side of the maximum-outer-diameter portion with respect to a straight line that is orthogonal to the perpendicular line on the center axis.
    Type: Application
    Filed: June 5, 2018
    Publication date: October 4, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 10058341
    Abstract: An endoscopic treatment instrument includes a sheath; a basket section formed by elastic wires; a manipulation wire connected to the basket section; and a distal end cover attached to a distal end of the sheath. The distal end cover has: a first opening; a second opening; an inner peripheral surface disposed between the first and second opening; and a curved surface bent over the whole circumference in t circumference direction of the distal end cover. Each of the plurality of the elastic wires has: a proximal end portion, a distal end portion, and a maximum diameter section. A radius of curvature of the curved surface is smaller than a radius of curvature of each of the plurality of the elastic wires. A contact position of the elastic wires and the curved surface moves in accordance with a retraction of the elastic wires.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 28, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 9924960
    Abstract: An endoscope treatment tool includes: a tubular sheath member insertable into a channel of an endoscope; a wire inserted into the interior of the member in such a manner that the wire can be advanced/retracted in the longitudinal direction of the member; and a distal-end treating portion provided at the distal end of the wire and made to protrude from/be pulled into a distal-end opening in the member by advancing/retracting the wire, wherein the member is configured having a two-layer structure in which a metal coil and a resin tube are layered in the radial direction and secured to each other, in the coil, lateral cross-sectional shapes of portions of a strand that are adjacent to each other in the longitudinal direction have complementary depression and protrusion that are brought into tight contact with each other, and the tube has a flexural rigidity greater than that of the coil.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: March 27, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Patent number: 9775634
    Abstract: In a discharge mechanism of basket-type grasping forceps according to the present invention, a support member can advance and retract relative to a plurality of basket wires, the position of the support member can be fixed, and an object inside a basket part is discharged to the outside of the basket part from a portion of the basket part proximal to the basket wires by movement of the support member and the basket part relative to each other.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: October 3, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20170252052
    Abstract: An endoscopic treatment instrument includes a sheath; a basket section formed by elastic wires; a manipulation wire connected to the basket section; and a distal end cover attached to a distal end of the sheath. The distal end cover has: a first opening; a second opening; an inner peripheral surface disposed between the first and second opening; and a curved surface bent over the whole circumference in the circumference direction of the distal end cover. Each of the plurality of the elastic wires has: a proximal end portion, a distal end portion, and a maximum diameter section. A radius of curvature of the curved surface is smaller than a radius of curvature of each of the plurality of the elastic wires. A contact position of the elastic wires and the curved surface moves in accordance with a retraction of the elastic wires.
    Type: Application
    Filed: May 19, 2017
    Publication date: September 7, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 9724114
    Abstract: In a discharge mechanism of basket-type grasping forceps according to the present invention, a support member can advance and retract relative to a plurality of basket wires, the position of the support member can be fixed, and an object inside a basket part is discharged to the outside of the basket part from a portion of the basket part proximal to the basket wires by movement of the support member and the basket part relative to each other.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: August 8, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada
  • Publication number: 20170156745
    Abstract: An endoscope treatment tool includes: a tubular sheath member insertable into a channel of an endoscope; a wire inserted into the interior of the member in such a manner that the wire can be advanced/retracted in the longitudinal direction of the member; and a distal-end treating portion provided at the distal end of the wire and made to protrude from/be pulled into a distal-end opening in the member by advancing/retracting the wire, wherein the member is configured having a two-layer structure in which a metal coil and a resin tube are layered in the radial direction and secured to each other, in the coil, lateral cross-sectional shapes of portions of a strand that are adjacent to each other in the longitudinal direction have complementary depression and protrusion that are brought into tight contact with each other, and the tube has a flexural rigidity greater than that of the coil.
    Type: Application
    Filed: February 23, 2017
    Publication date: June 8, 2017
    Applicant: OLYMPUS CORPORATION
    Inventor: Tsutomu OKADA
  • Patent number: 9649015
    Abstract: A treatment tool for an endoscope includes: a distal end member attached to a distal end of an endoscope; a treatment part; a tube that is arranged in an axis direction of the endoscope and has a lumen formed therein; an insertion part that is inserted into the lumen and has a distal end to which the treatment part is fixed; a connecting member that connects the tube and the distal end member; a first pivot that couples the connecting member and the tube; and a second pivot that couples the connecting member and the distal end member. The second pivot is provided at a position at which the connecting member is capable of rotating such that the first pivot is moved from a position at a proximal end side relative to the second pivot to a position at a distal end side.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: May 16, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Tsutomu Okada