Patents by Inventor Yuuichi TADA

Yuuichi TADA 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: 10653441
    Abstract: A method and dissecting device are disclosed for treating a stenotic vessel. The method including inserting a first dissecting member into a subintimal space of a blood vessel and a second dissecting device configured to be received within a lumen within the first dissecting device and inserted into the blood vessel in a bent state; dissecting an inner side of the subintimal space from an outer side of the subintimal space over an entire circumference of the blood vessel with the first dissecting device; and removing the dissected inner side of the subintimal space and a stenotic region attached to the inner side of the subintimal space from the blood vessel.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 19, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kousuke Nishio, Yuuichi Tada
  • Patent number: 10575903
    Abstract: A treatment device is disclosed for treatment of a living body lumen. The treatment device can include an optical fiber having an emitting part that emits laser light from a side circumferential surface. Two or more grooves are provided in the emitting part at places different in a longitudinal direction of the emitting part. The two or more grooves have two or more kinds of shapes and intensities of the laser light emitted from the grooves adjacent to each other are different. A maximum region of intensity of the laser light emitted from the emitting part is located on one end side relative to a center position in the longitudinal direction of the emitting part. The intensity of the laser light emitted from the emitting part on the other end side of the emitting part relative to a position of the maximum region decreases toward the other end side.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: March 3, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuhiko Shimizu, Yuuki Itou, Yuuichi Tada
  • Publication number: 20190151615
    Abstract: A medical elongated body includes a tube shaped body provided with a spiral slit. The tube shaped body has a pair of opposing surfaces, on both sides of the slit, opposing surfaces have a first side and a second side, a first convex portion protrudes from the first side and a second convex portion protrudes from the second side, the first convex portion and the second convex portion are adjacent to each other in the circumferential direction of the tube shaped body, and base portions of the first convex portion and the second convex portion are located on a common first spiral.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Takashi KITAOKA, Yuuichi TADA
  • Patent number: 10207124
    Abstract: A laser light irradiation device is disclosed, which can include an optical guide having a columnar portion and transmitting laser light through the columnar portion; a reflecting portion having a reflecting surface that reflects the laser light transmitted through the optical guide; and a transmitting portion having a window part and disposed between the columnar portion of the optical guide and the reflecting portion in such a manner that one end of the transmitting portion is in contact with the columnar portion, the transmitting portion transmitting the laser light emitted from the columnar portion to the reflecting portion and transmitting the laser light reflected by the reflecting surface to cause the laser light to be radiated to an external through the window part. A diameter of the reflecting surface gradually becomes smaller as distance from a boundary between the transmitting portion and the reflecting portion increases.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: February 19, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuhiko Shimizu, Yuuichi Tada, Yuuki Itou, Kazuyuki Takahashi
  • Patent number: 10159509
    Abstract: A method and dissecting device are disclosed for treating a stenotic vessel. The method including inserting a directional guide member of a dissecting device into a subintimal space of a blood vessel, the dissecting device including the directional guide member and a cutting member located proximally to a distal end of the directional guide member; and cutting a stenotic region within the blood vessel with the cutting member while advancing the distal end of the directional guide member through the subintimal space.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 25, 2018
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Kousuke Nishio, Yuuichi Tada
  • Publication number: 20180256197
    Abstract: A method and dissecting device are disclosed for treating a stenotic vessel. The method including inserting a dissecting device into a subintimal space of a blood vessel; dissecting an inner side of the subintimal space from an outer side of the subintimal space over an entire circumference of the blood vessel with the dissecting device, the dissecting device including a first dissecting member having a first cutting member; and removing the dissected inner side of the subintimal space and a stenotic region attached to the inner side of the subintimal space from the blood vessel.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 13, 2018
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: KOUSUKE NISHIO, YUUICHI TADA
  • Publication number: 20180256195
    Abstract: A method and dissecting device are disclosed for treating a stenotic vessel. The method including inserting a directional guide member of a dissecting device into a subintimal space from a blood vessel; sliding a tubular cutting member on the directional guide member through the subintimal space; and cutting a stenotic region with the tubular cutting member as the cutting member slides towards a distal end of the directional guide member.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 13, 2018
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kousuke NISHIO, Yuuichi TADA
  • Publication number: 20180256194
    Abstract: A method and dissecting device are disclosed for treating a stenotic vessel. The method including inserting a directional guide member of a dissecting device into a subintimal space of a blood vessel, the dissecting device including the directional guide member and a cutting member located proximally to a distal end of the directional guide member; and cutting a stenotic region within the blood vessel with the cutting member while advancing the distal end of the directional guide member through the subintimal space.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 13, 2018
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kousuke NISHIO, Yuuichi TADA
  • Publication number: 20180256196
    Abstract: A method and dissecting device are disclosed for treating a stenotic vessel. The method including inserting a first dissecting member into a subintimal space of a blood vessel and a second dissecting device configured to be received within a lumen within the first dissecting device and inserted into the blood vessel in a bent state; dissecting an inner side of the subintimal space from an outer side of the subintimal space over an entire circumference of the blood vessel with the first dissecting device; and removing the dissected inner side of the subintimal space and a stenotic region attached to the inner side of the subintimal space from the blood vessel.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 13, 2018
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Kousuke NISHIO, Yuuichi TADA
  • Publication number: 20180055535
    Abstract: A medical device for removing an object within a living body lumen includes a rotatable tubular driven shaft having a leading-out hole opening in a proximal portion of the driven shaft, a cutting unit disposed on a distal side of the driven shaft, the cutting unit cutting an object while rotating together with the driven shaft, and a suction tubular body having a distal portion and a proximal portion, the distal portion of the suction tubular body being located within the driven shaft, the proximal portion of the suction tubular body being located outside the driven shaft and extending in a direction of separating from the driven shaft outward in a radial direction of the driven shaft.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuuichi TADA, Mizuho HIRAO
  • Publication number: 20170231657
    Abstract: A medical device is disclosed for cutting an object in a living body lumen. The medical device includes a rotatable elongate member, rotating member having a cutting portion cutting the object and disposed on the distal end side of the elongate member for rotating together with rotation of the elongate member; and a distal member having a guide portion disposed on the distal end side of the rotating member with a space left from the rotating member and a supporting portion which supports the guide portion and defines a dimension of the space in an axial direction of the elongate member. The guide portion is disposed at a position at which the guide portion overlaps with part of the cutting portion and exposes part of the cutting portion as viewed from the distal end side of the distal member.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 17, 2017
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuuichi TADA, Kousuke NISHIO, Mizuho HIRAO
  • Patent number: 9710605
    Abstract: A medical equipment information management system includes a medical equipment information storage medium capable of storing and transmitting medical equipment information and disposed in a packing unit configured to package medical equipment, a medical equipment information reception block configured to receive the medical equipment information transmitted from the medical equipment information storage medium, and a display unit configured to display the medical equipment information received by the medical equipment information reception block, wherein the medical equipment information storage medium cannot transmit the medical equipment information when the packing unit is in a non-opened state, but is placed into a state in which it can transmit the medical equipment information if the packing unit is opened.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: July 18, 2017
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Akira Masuda, Yuuichi Tada, Yuusuke Sekine
  • Publication number: 20170119469
    Abstract: A treatment device is disclosed for treatment of a living body lumen. The treatment device can include an optical fiber having an emitting part that emits laser light from a side circumferential surface. Two or more grooves are provided in the emitting part at places different in a longitudinal direction of the emitting part. The two or more grooves have two or more kinds of shapes and intensities of the laser light emitted from the grooves adjacent to each other are different. A maximum region of intensity of the laser light emitted from the emitting part is located on one end side relative to a center position in the longitudinal direction of the emitting part. The intensity of the laser light emitted from the emitting part on the other end side of the emitting part relative to a position of the maximum region decreases toward the other end side.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuhiko SHIMIZU, Yuuki ITOU, Yuuichi TADA
  • Publication number: 20160274303
    Abstract: An optical fiber is capable of radiating light radially in a wide range. The optical fiber includes an elongate primary coated optical fiber adapted to transmit light radiated for medical treatment. The primary coated optical fiber includes a core at a central portion and a cladding covering the core, and has an irradiation groove along the circumferential direction thereof. The irradiation groove extends from the cladding to reach the core of the primary coated optical fiber, and has side portions on both sides with respect to the axial direction of the primary coated optical fiber and a bottom portion. The side portions each have a protruding portion shaped to be protrude toward the inside of the irradiation groove.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yuuichi TADA, Yuuki ITOU, Kazuaki KANAMOTO
  • Publication number: 20160089203
    Abstract: There is provided an irradiation device which irradiates light on an inner side face of a biological lumen. The irradiation device includes an optical fiber through which light passes, and a plurality of optical members each having a spherical shape. The plurality of optical members are arrayed in a line along a direction in which light emitted from a distal end of the optical fiber is radiated so that the light is radiated toward the inner surface of the biological lumen.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuhiko SHIMIZU, Yuuichi TADA, Yuuki ITOU, Kazuyuki TAKAHASHI
  • Publication number: 20160089547
    Abstract: A laser light irradiation device is disclosed, which can include an optical guide having a columnar portion and transmitting laser light through the columnar portion; a reflecting portion having a reflecting surface that reflects the laser light transmitted through the optical guide; and a transmitting portion having a window part and disposed between the columnar portion of the optical guide and the reflecting portion in such a manner that one end of the transmitting portion is in contact with the columnar portion, the transmitting portion transmitting the laser light emitted from the columnar portion to the reflecting portion and transmitting the laser light reflected by the reflecting surface to cause the laser light to be radiated to an external through the window part. A diameter of the reflecting surface gradually becomes smaller as distance from a boundary between the transmitting portion and the reflecting portion increases.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Katsuhiko SHIMIZU, Yuuichi TADA, Yuuki ITOU, Kazuyuki TAKAHASHI
  • Publication number: 20130173288
    Abstract: A medical equipment information management system includes a medical equipment information storage medium capable of storing and transmitting medical equipment information and disposed in a packing unit configured to package medical equipment, a medical equipment information reception block configured to receive the medical equipment information transmitted from the medical equipment information storage medium, and a display unit configured to display the medical equipment information received by the medical equipment information reception block, wherein the medical equipment information storage medium cannot transmit the medical equipment information when the packing unit is in a non-opened state, but is placed into a state in which it can transmit the medical equipment information if the packing unit is opened.
    Type: Application
    Filed: June 28, 2011
    Publication date: July 4, 2013
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Akira Masuda, Yuuichi Tada, Yuusuke Sekine
  • Publication number: 20090171574
    Abstract: A navigation system sets a destination of navigation equipment by forwarding spot information managed by a server to the navigation equipment via a mobile terminal. The server includes write information accepting unit accepting write information from a plurality of users via a network, spot information generating unit generating the spot information based on the write information, spot information storage unit stored with the generated spot information, extracting unit extracting predetermined spot information in response to a search request, and transmitting unit transmitting the spot information to the mobile terminal. The mobile terminal includes receiving unit receiving the predetermined spot information, terminal display unit displaying the predetermined spot information, and forwarding unit forwarding the predetermined spot information to the navigation equipment. The navigation equipment includes navigation control unit setting the destination from the predetermined spot information.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 2, 2009
    Applicant: FUJITSU TEN LIMITED
    Inventors: Isao Ishibashi, Teru Sawada, Shigeru Yamakoshi, Yuuichi Tada
  • Publication number: 20070243573
    Abstract: A method and apparatus for efficiently immobilizing cells on a substrate without damaging the cells, and a cell-immobilized substrate is provided. Cells 4a contacting a substrate 2 is irradiated with light 10 which includes light having a wavelength of 330 to 410 nm, thereby adhering cells 4a to the substrate 2.
    Type: Application
    Filed: February 9, 2007
    Publication date: October 18, 2007
    Inventors: Kimio SUMARU, Junichi EDAHIRO, Yuki OOSHIMA, Yuuichi TADA, Shinji SUGIURA, Toshiyuki KANAMORI