Sterilizer with vacuum-assisted air removal

Details Sterilizer with vacuum-assisted air removal Sterilizer with vacuum-assisted air removal

A - Human Necessities

61

L

A61L 2/26 (2006.01) A61L 2/07 (2006.01) A61L 2/24 (2006.01)

Patent

CA 2365829

A sterilizer for medical instruments is compact and designed to be placed on a table top. The sterilizer provides includes a cavity for receiving a cassette holding the instruments to be sterilized. A stream circuit provides steam to the cassette for sterilization, and the time required for sterilization is reduced by withdrawing air from the cassette by application of a vacuum. The cavity is evacuated at the same time as the cassette to prevent application of high stresses to the cassette during the vacuum-assisted withdrawal of air. The time for sterilization is further reduced by use of dual heat exchangers to reduce the volume removed from the cassette.

L'invention porte sur un stérilisateur d'instruments médicaux compact et conçu pour être placé sur une table. Ce stérilisateur comporte une cavité permettant de recevoir une cassette retenant les instruments à stériliser. Un circuit produit de la vapeur dans la cassette pour la stérilisation, et le temps nécessaire à la stérilisation est réduit par l'élimination de l'air de la cassette par aspiration. La cavité est évacuée au même moment que la cassette de façon à empêcher l'application de contraintes élevées sur la cassette durant l'élimination d'air par aspiration. Le temps de stérilisation est également réduit lorsqu'on utilise deux échangeurs thermiques pour réduire le volume retiré de la cassette.

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