Taichiro Akiyama

Setsuko Ueno

Sajiro Ookubo

A fluid such as air is tightly enclosed in a chamber which serves to plug an organic passage such as a person's nasal cavity. The fluid is supplied into the chamber through a tube so as elastically to expand the chamber and thereafter is discharged through a valve device comprising an opening formed in the tube and a valve member which normally closes the opening but can be rolled up on itself so that the fluid in the chamber can flow out through the opening.

Growing community of inventors

Tokyo, Japan

Setsuko Ueno