Patents by Inventor Masamichi IIJIMA

Masamichi IIJIMA 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).

  • Catheter for treatment of sinusitis
    Patent number: 10137281
    Abstract: A catheter for treatment of sinusitis capable of causing a space in a further rear (distal side) of a posterior nasal aperture to communicate with external air is provided. The catheter comprises an anterior nasal aperture balloon 33, an anterior nasal aperture balloon air supply lumen 39b for inflating the anterior nasal aperture balloon 33, a posterior nasal aperture balloon 13, a posterior nasal aperture balloon air supply lumen 19b for inflating the posterior nasal aperture balloon 13, and a drainage lumen 39a having an opening 41 between the anterior nasal aperture balloon 33 and the posterior nasal aperture balloon 13, in which an external air communication lumen 19a having an opening 21 on a distal side from the posterior nasal aperture balloon 13 is further provided.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: November 27, 2018
    Assignee: Tsukada Medical Research Co., Ltd.
    Inventors: Osamu Tsukada, Masamichi Iijima, Kengo Kanai
  • CATHETER FOR TREATMENT OF SINUSITIS
    Publication number: 20160038723
    Abstract: A catheter for treatment of sinusitis capable of causing a space in a further rear (distal side) of a posterior nasal aperture to communicate with external air is provided. The catheter comprises an anterior nasal aperture balloon 33, an anterior nasal aperture balloon air supply lumen 39b for inflating the anterior nasal aperture balloon 33, a posterior nasal aperture balloon 13, a posterior nasal aperture balloon air supply lumen 19b for inflating the posterior nasal aperture balloon 13, and a drainage lumen 39a having an opening 41 between the anterior nasal aperture balloon 33 and the posterior nasal aperture balloon 13, in which an external air communication lumen 19a having an opening 21 on a distal side from the posterior nasal aperture balloon 13 is further provided.
    Type: Application
    Filed: September 9, 2013
    Publication date: February 11, 2016
    Inventors: Osamu TSUKADA, Masamichi IIJIMA, Kengo KANAI