Patents by Inventor Kuniyoshi MASUDA

Kuniyoshi MASUDA 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).

  • Publication number: 20230041137
    Abstract: A retractor is provided that can form a joint cavity internal space for a field of view for an endoscope and practice of a treatment in a state where a wound area is spread. A retractor includes first arm portions 2 and 3 and a second arm portion 4 positioned between the first arm portions 2 and 3. The first arm portions 2 and 3 include first claw portions 12 and 13 to be hung on a wound area entrance edge. The second arm portion 4 includes a second claw portion 14 to be hung on the wound area entrance edge. When the first arm portions 2 and 3 and the second arm portion 4 are in a closed state, the first claw portions 12 and 13 and the second claw portion 14 overlap with each other.
    Type: Application
    Filed: January 13, 2021
    Publication date: February 9, 2023
    Inventors: Hitoshi MIZUNO, Kuniyoshi MASUDA, Masahiko KATAYAMA, Tomokazu TAKAI, Toshiya ENDO, Norimasa IWASAKI, Tomohiro ONODERA, Koji IWASAKI