The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2025
Filed:
Jan. 13, 2021
Mochida Pharmaceutical Co., Ltd., Tokyo, JP;
National University Corporation Hokkaido University, Sapporo, JP;
Hitoshi Mizuno, Tokyo, JP;
Kuniyoshi Masuda, Tokyo, JP;
Masahiko Katayama, Tokyo, JP;
Tomokazu Takai, Tokyo, JP;
Toshiya Endo, Tokyo, JP;
Norimasa Iwasaki, Hokkaido, JP;
Tomohiro Onodera, Hokkaido, JP;
Koji Iwasaki, Hokkaido, JP;
MOCHIDA PHARMACEUTICAL CO., LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo, JP;
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 portionsandand a second arm portionpositioned between the first arm portionsand. The first arm portionsandinclude first claw portionsandto be hung on a wound area entrance edge. The second arm portionincludes a second claw portionto be hung on the wound area entrance edge. When the first arm portionsandand the second arm portionare in a closed state, the first claw portionsandand the second claw portionoverlap with each other.