PROBLEM TO BE SOLVED: To provide a high-level medical waste disposal device and medical waste disposal method, capable of satisfying all of securement of work safety, prevention of atmospheric pollution and water contamination, preservation of natural environment, energy recycle and the like, as well as sure sterilization and volume reduction treatment.SOLUTION: In a medical waste disposal device, when supplying a plastic bag containing medical waste to a cylindrical case and compressing the medical waste with a compressing means by lowering a piston, the plastic bag containing medical is prevented from being broken due to a catch of the plastic bag in a space between the inner wall of the cylindrical case and the piston or rapid compression of the plastic bag by lowering and raising the piston repeatedly to carry out the compression progressively. In addition, when discharging a cake that has been fused, sterilized and reduced in volume by heating and compressing, a gate is fully opened, the lower surface of the heating means of the piston is lowered to within several millimeters of the upper surface of the heating means of the gate, and the cake adhered to the heating means that is joined to the piston is forcibly scraped off by closing the gate.COPYRIGHT: (C)2013,JPO&INPIT【課題】確実な滅菌減容化処理はもとより労働安全の確保、大気及び水質汚染防止、自然環境の保全、エネルギーリサイクル等すべてを満足できる高度な医療廃棄物処理方法及び医療廃棄物処理装置を提供すること。【解決手段】筒状筐体に医療廃棄物の入ったポリ袋を供給し圧縮手段でピストンを下降させて医療廃棄物を圧縮する際に、ピストンの下降と上昇を繰り返し段階的に圧縮することによって医療廃棄物の入ったポリ袋が筒状筐体の内壁とピストンとの隙間への噛み込みやポリ袋が急激な圧縮により破裂することを防止し、かつ、加熱圧縮により溶融滅菌減容化して得たケーキを排出する際にゲートを全開しピストンの加熱手段下面をゲートの加熱手段上面数ミリメートルの距離まで下降させピストンに緊結してある加熱手段に固着しているケーキをゲートを閉じることによって強制的に掻き落とすことができる。【選択図】図1
