To prevent air from being mixed, when sampling gas emitted from the surface of the skin.
A skin gas sampler comprises a casing 110 which constitutes a tubular opening, a tubular flexible membrane member 120 which is provided along an inner side surface of the casing, and a gas sampling vessel 140 which is connected to the casing with air-tightness. Both terminal portions of the tubular flexible membrane member 120 is adhered to the inner side surface of the casing to form a sealed space between the tubular flexible membrane member and the inner side surface of the casing. When a fluid substance is supplied into the sealed space, the tubular flexible membrane member is expanded toward the center of the tube. A value of a product of a thickness (t) of the tubular flexible membrane member and a force σ required for extending a cube having a unit length of the tubular flexible membrane member in one direction for the unit length satisfies an inequality in the figure.
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito
Katsuhiko Kimura
▲濱▼口 岳久
Naofumi Tanaka