Patents by Inventor Masamitsu Muranushi

Masamitsu Muranushi 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).

  • Devices and methods for cardiac mapping of an annular region
    Patent number: 7606609
    Abstract: A catheter maps an electrical conduction pattern in an annular region of a heart. The catheter has a tubular shaft that has a pre-shaped curved distal section adjacent the distal end thereof, and at least one lumen extending between the distal end and the proximal end of the shaft, with a plurality of electrodes disposed on the distal section. A handle is attached to the proximal end of the shaft, with a steering mechanism provided at the handle for adjusting the curvature of the distal section, and a deflection mechanism provided at the handle for deflecting the distal section. The electrodes are positioned in a parallel plane separate from the shaft when the distal section is undeflected.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 20, 2009
    Assignee: Irvine Biomedical, Inc.
    Inventors: Masamitsu Muranushi, Takashi Higashikubo, Pianka Roy
  • Devices and methods for cardiac mapping of an annular region
    Publication number: 20090163794
    Abstract: A catheter maps an electrical conduction pattern in an annular region of a heart. The catheter has a tubular shaft that has a pre-shaped curved distal section adjacent the distal end thereof, and at least one lumen extending between the distal end and the proximal end of the shaft, with a plurality of electrodes disposed on the distal section. A handle is attached to the proximal end of the shaft, with a steering mechanism provided at the handle for adjusting the curvature of the distal section, and a deflection mechanism provided at the handle for deflecting the distal section. The electrodes are positioned in a parallel plane separate from the shaft when the distal section is undeflected.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventors: Masamitsu Muranushi, Takashi Higashikubo, Pianka Roy