Patents by Inventor Koji J. Kizuka

Koji J. Kizuka 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: 20190117223
    Abstract: A device for connecting together two opposing leaflets of a valve in a patient's heart, comprising: a first clip having a generally U-shape, comprising a first prong and a second prong, and a first bridge connecting the first prong to the second prong; a second clip having a generally U-shape, comprising a third prong and a fourth prong, and a second bridge connecting the third prong to the fourth prong; a third clip having a generally U-shape, comprising a fifth prong and a sixth prong, and a third bridge connecting the fifth prong to the sixth prong, wherein the third prong has a first elongate axis and the fifth prong has a second elongate axis and the third prong and the fifth prong are positioned to extend adjacent to and parallel with the first prong, and are configured to rotate about the first elongate axis and the fifth elongate axis respectively.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 25, 2019
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Chad Abunassar, Koji J. Kizuka, Casey M. Barbarino, Brandon W. Chu, Travis R. Marsot, Shengmin Mei
  • Patent number: 10149685
    Abstract: A system for repairing a mitral valve: a first cylinder; and, a clip having an axial length and comprising a second cylinder having a wall and an internal bore. The wall defines an opening extending along the axial length, the opening being sized for at least two requirements: (a) the opening is large enough to receive the first cylinder when the first cylinder is positioned parallel with and adjacent to the second cylinder and the first cylinder is moved in a direction, through the opening. The wall of the second cylinder is sized to bend elastically to widen the opening so as to receive the first cylinder; and (b) the opening is small enough to prevent the first cylinder from falling out of the bore.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: December 11, 2018
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Koji J. Kizuka
  • Publication number: 20180242976
    Abstract: A system for repairing a mitral valve: a first cylinder; and, a clip having an axial length and comprising a second cylinder having a wall and an internal bore. The wall defines an opening extending along the axial length, the opening being sized for at least two requirements: (a) the opening is large enough to receive the first cylinder when the first cylinder is positioned parallel with and adjacent to the second cylinder and the first cylinder is moved in a direction, through the opening. The wall of the second cylinder is sized to bend elastically to widen the opening so as to receive the first cylinder; and (b) the opening is small enough to prevent the first cylinder from falling out of the bore.
    Type: Application
    Filed: February 28, 2017
    Publication date: August 30, 2018
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: Koji J. Kizuka
  • Publication number: 20180133008
    Abstract: Devices, systems and methods for repairing a valve in a patient's heart includes a two or more fixations devices, each fixation device being attachable to the free end of a target tissue, such as a valve leaflet, the fixation devices being coupled together by a coupling device capable of repositioning and coupling the fixation devices in order to re-position the free ends of the valve leaflets.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 17, 2018
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Koji J. Kizuka, Michael Z. Chong
  • Publication number: 20180133010
    Abstract: The present disclosure relates to repair devices and methods for repair of regurgitant tricuspid valves. A repair method includes positioning a repair device at a tricuspid valve in a collapsed configuration. The repair device includes a proximal disk and a distal disk joined by a neck section. The distal disk is deployed by passing it from the collapsed state to an expanded configuration on a first side of the tricuspid valve. The proximal disk is then deployed by passing it from the collapsed state to an expanded configuration on a second side of the tricuspid valve so as to grasp all three tricuspid valve leaflets between the deployed distal disk and the deployed proximal disk.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 17, 2018
    Inventor: Koji J. Kizuka
  • Publication number: 20170224483
    Abstract: A catheter for delivering an implant, the catheter comprising a shaft having a proximal end and a distal end and a bore; a first joint in the shaft, the first joint being configured to permit adjacent portions of the shaft to rotate in relation to each other; a second joint in the shaft located distal of the first joint, the second joint being configured to permit adjacent portions of the shaft to rotate in relation to each other; wherein, the first joint and the second joint are separated by a first digit that is rotationally rigid at all points between the first joint and the second joint; further wherein, the second joint and the distal end are separated by a second digit that is rotationally rigid at all points between the second joint and the distal end, the second digit being sized to receive an implant.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 10, 2017
    Inventor: Koji J. Kizuka