Hokkaido University

Mochida Pharmaceutical Co., Ltd.

Kuniyoshi Masuda

Masahiko Katayama

Norimasa Iwasaki

Hitoshi Mizuno

Tomohiro Onodera

Tomokazu Takai

Toshiya Endo

Koji Iwasaki

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.

Retractor

Growing community of inventors

Tokyo, Japan

Kuniyoshi Masuda