Patents by Inventor Eisei GU

Eisei GU 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: 11617868
    Abstract: The balloon catheter of the present invention is provided with a balloon base at a front end of a tubular catheter body having a predetermined length. The balloon base includes a cylindrical base having a larger diameter than an outer diameter of the catheter body, and a lumen having substantially the same diameter as the outer diameter of the catheter body is formed on the base over an entire length with both ends opened. A central axis of the lumen is inclined at a predetermined angle with respect to a central axis of the base concentric with a central axis of the catheter body, and an outer peripheral surface is formed in parallel with the central axis of the base. The balloon is provided on the outer peripheral surface of the parallel base to obliquely inflate with respect to the central axis of the catheter body during inflation.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: April 4, 2023
    Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, FUJI SYSTEMS CORPORATION
    Inventors: Eisei Gu, Takumi Fukumoto, Fumikazu Watanabe, Akihiro Asai
  • Patent number: 10994056
    Abstract: A device for fixing biological soft tissue is endowed with strength and deformation performance for being used as a device for coupling biological soft tissue that has been cut or separated due to an incision or the like during a surgical procedure, and is completely degraded in vivo and discharged after adhesion of the soft tissue or after healing of the incision tissue. The device is composed of a ternary Mg alloy material of Mg—Ca—Zn. In the Mg alloy material, the Ca and Zn are contained within the solid-solubility limit with respect to the Mg. The remainder is composed of Mg and unavoidable impurities. The Zn content is 0.5 at % or less. The Ca and Zn content has a relationship of Ca:Zn=1:x (where x is 1 to 3) by atom ratio. The crystal grain structure is equiaxed, the crystal grain size according to linear intercept being 30 to 250 ?m.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: May 4, 2021
    Assignee: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
    Inventors: Toshiji Mukai, Naoko Ikeo, Eisei Gu, Takumi Fukumoto, Hikaru Yabuuchi
  • Publication number: 20190366058
    Abstract: The balloon catheter of the present invention is provided with a balloon base at a front end of a tubular catheter body having a predetermined length. The balloon base includes a cylindrical base having a larger diameter than an outer diameter of the catheter body, and a lumen having substantially the same diameter as the outer diameter of the catheter body is formed on the base over an entire length with both ends opened. A central axis of the lumen is inclined at a predetermined angle with respect to a central axis of the base concentric with a central axis of the catheter body, and an outer peripheral surface is formed in parallel with the central axis of the base. The balloon is provided on the outer peripheral surface of the parallel base to obliquely inflate with respect to the central axis of the catheter body during inflation.
    Type: Application
    Filed: March 30, 2016
    Publication date: December 5, 2019
    Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, FUJI SYSTEMS CORPORATION
    Inventors: Eisei GU, Takumi FUKUMOTO, Fumikazu WATANABE, Akihiro ASAI
  • Publication number: 20170258968
    Abstract: A device for fixing biological soft tissue is endowed with strength and deformation performance for being used as a device for coupling biological soft tissue that has been cut or separated due to an incision or the like during a surgical procedure, and is completely degraded in vivo and discharged after adhesion of the soft tissue or after healing of the incision tissue. The device is composed of a ternary Mg alloy material of Mg—Ca—Zn. In the Mg alloy material, the Ca and Zn are contained within the solid-solubility limit with respect to the Mg. The remainder is composed of Mg and unavoidable impurities. The Zn content is 0.5 at % or less. The Ca and Zn content has a relationship of Ca:Zn=1:x (where x is 1 to 3) by atom ratio. The crystal grain structure is equiaxed, the crystal grain size according to linear intercept being 30 to 250 ?m.
    Type: Application
    Filed: September 9, 2015
    Publication date: September 14, 2017
    Inventors: Toshiji MUKAI, Naoko IKEO, Eisei GU, Takumi FUKUMOTO, Hikaru YABUUCHI