Patents by Inventor Tetsu Sumida

Tetsu Sumida 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).

  • Intravascular Treatment Site Access
    Publication number: 20250050060
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.
    Type: Application
    Filed: October 31, 2024
    Publication date: February 13, 2025
    Applicant: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Intravascular Treatment Site Access
    Publication number: 20240316313
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.
    Type: Application
    Filed: June 6, 2024
    Publication date: September 26, 2024
    Applicant: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Intravascular treatment site access
    Patent number: 12029863
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature. In an example embodiment, a microcatheter with an enlarged distal section is described. The enlarged portion of the microcatheter may be located close to the inner diameter of the guide catheter in order to reduce any open space between the microcatheter and the guide catheter, and the guidewire can be placed through the microcatheter and used to guide the system. The microcatheter can include one or more marker bands to aid in aligning the microcatheter correctly relative to the guide catheter. After the guide catheter and microcatheter are tracked to the appropriate treatment site, the microcatheter can then be used to deploy various medical devices to treat a patient.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: July 9, 2024
    Assignee: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Intravascular Treatment Site Access
    Publication number: 20200269012
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 27, 2020
    Applicant: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Intravascular treatment site access
    Patent number: 10682493
    Abstract: A device and its method of use eliminates or reduces the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature. The device is maintained at or near the distal end of the catheter while being advanced through the vessels of a patient. The reduced gap size prevents the catheter from otherwise “catching” on various structures of a vessel, such as a bifurcation.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: June 16, 2020
    Assignee: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Intravascular Treatment Site Access
    Publication number: 20170224953
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 10, 2017
    Applicant: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski