Patents by Inventor Natsuko Yamoto

Natsuko Yamoto 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).

  • Fistula catheter
    Patent number: 9126014
    Abstract: A fistula catheter in which an intracorporeal fixing part comprises an inner balloon and an outer balloon is disclosed, whereby it is possible to prevent removal from the fistula by means of the inner balloon, even if the outer balloon deflates.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 8, 2015
    Assignee: Covidien LP
    Inventors: Natsuko Yamoto, Shigeaki Funamura
  • Fistula catheter
    Patent number: 8961456
    Abstract: A fistula catheter that can prevent separating from the fistula by an inner balloon even if an outer balloon collapses by configuring an internal fixed part with an inner side balloon and an outer side balloon is disclosed. The fistula catheter A has an external fixed part, a supply tube with a primary cavity and a secondary cavity, and an internal fixed part on the tip end side outer periphery of the supply tube, expandable by a compound liquid that includes barium sulfate and distilled water supplied though the secondary cavity. The internal fixed part can be an inner balloon and an outer balloon that communicate with the secondary cavity through filler ports on the peripheral surface of the supply tube. A filter on the filler port can enable distilled water in the compound liquid to be filled into the outer balloon from the secondary cavity through the filter, and the compound liquid can be filled into the inner balloon.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: February 24, 2015
    Assignee: Covidien LP
    Inventor: Natsuko Yamoto
  • FISTULA CATHETER
    Publication number: 20140336585
    Abstract: A fistula catheter in which an intracorporeal fixing part comprises an inner balloon and an outer balloon is disclosed, whereby it is possible to prevent removal from the fistula by means of the inner balloon, even if the outer balloon deflates.
    Type: Application
    Filed: September 28, 2012
    Publication date: November 13, 2014
    Applicant: Covidien LP
    Inventors: Natsuko Yamoto, Shigeaki Funamura
  • Fistula Catheter
    Publication number: 20140236081
    Abstract: A fistula catheter that can prevent separating from the fistula by an inner balloon even if an outer balloon collapses by configuring an internal fixed part with an inner side balloon and an outer side balloon is disclosed. The fistula catheter A has an external fixed part, a supply tube with a primary cavity and a secondary cavity, and an internal fixed part on the tip end side outer periphery of the supply tube, expandable by a compound liquid that includes barium sulfate and distilled water supplied though the secondary cavity. The internal fixed part can be an inner balloon and an outer balloon that communicate with the secondary cavity through filler ports on the peripheral surface of the supply tube. A filter on the filler port can enable distilled water in the compound liquid to be filled into the outer balloon from the secondary cavity through the filter, and the compound liquid can be filled into the inner balloon.
    Type: Application
    Filed: October 19, 2012
    Publication date: August 21, 2014
    Inventor: Natsuko Yamoto