Patents by Inventor Keiji OI

Keiji OI 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).

  • Artificial tendon-forming auxiliary instrument, somatometry instrument, and auxiliary instrument set
    Patent number: 10729418
    Abstract: According to the present invention, there is provided an artificial tendon-forming auxiliary instrument in which a valve cusp of a cardiac valve and a papillary muscle can be joined together with an artificial tendon through an easy procedure and the artificial tendon can be finished so as to have a desired length. According to an aspect of the present invention, an auxiliary instrument (100) is used for joining a valve cusp (210) of the cardiac valve and a papillary muscle (212) with an artificial tendon (200). A pair of end-portion support portions (20) and (21) respectively supporting the valve cusp (210) and the papillary muscle (212) is provided at both ends in a longitudinal direction. The auxiliary instrument (100) includes first and second tendon insertion ports through which the artificial tendon (200) is inserted, a tendon guide portion (30), and an instrument holding portion (40).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: August 4, 2020
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Keiji Oi, Kei Hyugaji, Keitaro Sugita, Akira Kawamata, Takashi Sato
  • ARTIFICIAL TENDON-FORMING AUXILIARY INSTRUMENT, SOMATOMETRY INSTRUMENT, AND AUXILIARY INSTRUMENT SET
    Publication number: 20170333025
    Abstract: According to the present invention, there is provided an artificial tendon-forming auxiliary instrument in which a valve cusp of a cardiac valve and a papillary muscle can be joined together with an artificial tendon through an easy procedure and the artificial tendon can be finished so as to have a desired length. According to an aspect of the present invention, an auxiliary instrument (100) is used for joining a valve cusp (210) of the cardiac valve and a papillary muscle (212) with an artificial tendon (200). A pair of end-portion support portions (20) and (21) respectively supporting the valve cusp (210) and the papillary muscle (212) is provided at both ends in a longitudinal direction. The auxiliary instrument (100) includes first and second tendon insertion ports through which the artificial tendon (200) is inserted, a tendon guide portion (30), and an instrument holding portion (40).
    Type: Application
    Filed: October 30, 2015
    Publication date: November 23, 2017
    Applicant: SUMITOMO BAKELITE CO., LTD.
    Inventors: Keiji OI, Kei HYUGAJI, Keitaro SUGITA, Akira KAWAMATA, Takashi SATO