PROBLEM TO BE SOLVED: To provide a plasma sterilizer continuing the production of plasma regardless of the presence of the arrangement of a sterilization target and having high-degree sterilization capacity deactivating the toxicity of the sterilization target.SOLUTION: The plasma sterilizer includes a housing container 1 for housing the sterilization target 100, an electrode 2 installed inside or outside the housing container 1, a gas supply means 4 for supplying gas into the housing container 1 and a high frequency supply means 3 for supplying a high frequency current to the electrode 2 and is constituted so as to form plasma from the gas in the housing container 1 by the supply of the high frequency current to the electrode 2 to apply sterilization treatment to the sterilization target 100. In this plasma sterilizer, the electrode 2 has electrode regions each of which comprises a pair of electric wires through which electric currents flow in mutually reverse directions in a local space and the aggregate of the electric regions is arranged so as to surround the space occupied by the sterilization target 100 while the direction of the lines of magnetic force induced from the respective electrode regions is set toward the space and the magnetic fields induced in the respective electrode regions are present in the space or in the vicinity of the space in a superposed state.COPYRIGHT: (C)2012,JPO&INPIT【課題】滅菌対象物の配置の有無に関わらずプラズマ発生を継続することができ、滅菌対象物の毒性を不活化する高度な滅菌能力を有するプラズマ滅菌装置の提供を目的とする。【解決手段】滅菌対象物100を収納する収納容器1と、該収納容器1の内側又は外側に設置された電極2と、該収納容器内にガスを供給するガス供給手段4と、該電極に高周波電流を供給する高周波供給手段3とを有し、該電極に高周波電流を供給し該収納容器内のガスをプラズマ化し、該滅菌対象物を滅菌処理するプラズマ滅菌装置において、該電極2は、局所的な空間において互いに逆方向に電流が流れる一対の電線からなる電極部位を有すると共に、該電極部位の集合体が、該滅菌対象物100が占める空間を取り囲むように配置され、各電極部位が誘起する磁力線の方向が該空間に向かう方向であり、該空間又は該空間の近傍で各電極部位の誘起する磁場が重畳されて存在することを特徴とする。【選択図】 図1
