Sekisui Chemical Co., Ltd.

Yoshishige Takikawa

Yu Nagahara

Takaya Oshita

Tsuyoshi Uehara

Mikimoto Kanazashi

Naomichi Saito

Masaki Iwasaki

Tatsuya Matsuo

Hiroaki Aiba

Akira Morooka

An irradiator includes: a first electrode to which a voltage is applied for generating a plasma; and a holding member holding the first electrode; wherein: the holding member has a first member and a second member that are in contact with each other to constitute an accommodation space accommodating the first electrode; and a contact surface between the first member and the second member includes a non-perpendicular contact surface that is non-perpendicular to an axis of the first electrode.

Holding member, irradiator, and plasma apparatus

The present invention provides a reactive gas application apparatus capable of easily and surely applying a reactive gas to a target object. The reactive gas application apparatus () includes: a plasma generating unit (), a nozzle () for discharging a reactive gas activated by plasma generated in the plasma generation unit (), and a light source unit () for emitting light toward a position ahead of a tip of the nozzle (). The reactive gas application apparatus preferably further includes a control unit for synchronizing plasma generation in the plasma generation unit and light emission in the light source unit.

Reactive gas application apparatus

The present invention discloses a medical therapeutic apparatus () which generates plasma and blows out an reactive gas generated by the generated plasma toward a target object from an outlet, wherein a temperature of the reactive gas at a target surface positioned at a distance of 1 mm or more and 10 mm or less from the outlet is 40&#xb0; C. or less, and a radical concentration is 0.1 to 300 &#x3bc;mol/L as determined by a hydroxy radical concentration measuring method comprising applying the reactive gas to 0.4 mL of a 0.2 mol/L solution of DMPO (5,5-dimethyl-1-pyrroline-N-oxide) for 30 seconds with a distance from the outlet to a liquid surface of the solution being 5.0 mm, and measuring a hydroxyl radical concentration of the resulting solution by electron spin resonance (ESR) method.

Medical therapeutic apparatus, method of using medical therapeutic apparatus, and method of applying reactive gas

A plasma generating apparatus including: a plasma generating unit including a tubular dielectric to which an atmospheric pressure plasma generation gas is introduced, an inner electrode extending in a hollow portion of the tubular dielectric in axial direction of the tubular dielectric and having a coil shape or an irregular surface, and an outer electrode provided on the outside of the tubular dielectric, the inner electrode and the outer electrode being positioned opposite to each other through the tubular dielectric; and a discharge port for discharging an active gas containing active species generated by the atmospheric pressure plasma generated in the plasma generating unit.

Growing community of inventors

Osaka, Japan

Yoshishige Takikawa