Patents by Inventor Chigusa Kamemoto

Chigusa Kamemoto 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).

  • Balloon catheter
    Patent number: 10342959
    Abstract: A balloon catheter includes an inner cylinder shaft having a small-diameter inner cylinder section in a tip side and a large-diameter inner cylinder section in a base-end side; an outer cylinder shaft with the inner cylinder shaft in its lumen; a balloon whose tip is fixed at a tip of the inner cylinder shaft, and whose base end is fixed at the tip of the outer cylinder shaft, wherein the outer cylinder shaft and the inner cylinder shaft slide over each other and cause a shape change between a normal balloon shape and an extended balloon shape; and a housing communicating with the lumen of the outer cylinder shaft, and having a small-diameter lumen in the tip side and a large-diameter lumen in the base-end side; wherein the housing has an insertion inlet for insertion of the inner cylinder shaft, and a liquid inlet/outlet.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: July 9, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Takahiro Yagi, Akinori Matsukuma, Motoki Takaoka, Chigusa Kamemoto
  • BALLOON CATHETER
    Publication number: 20170128702
    Abstract: A balloon catheter includes an inner cylinder shaft having a small-diameter inner cylinder section in a tip side and a large-diameter inner cylinder section in a base-end side; an outer cylinder shaft with the inner cylinder shaft in its lumen; a balloon whose tip is fixed at a tip of the inner cylinder shaft, and whose base end is fixed at the tip of the outer cylinder shaft, wherein the outer cylinder shaft and the inner cylinder shaft slide over each other and cause a shape change between a normal balloon shape and an extended balloon shape; and a housing communicating with the lumen of the outer cylinder shaft, and having a small-diameter lumen in the tip side and a large-diameter lumen in the base-end side; wherein the housing has an insertion inlet for insertion of the inner cylinder shaft, and a liquid inlet/outlet.
    Type: Application
    Filed: March 31, 2015
    Publication date: May 11, 2017
    Inventors: Takahiro Yagi, Akinori Matsukuma, Motoki Takaoka, Chigusa Kamemoto