Method for sterilizing articles such as dental handpieces

Method and apparatus for sterilizing articles such as dental handpieces include introducing the article and liquid sterilant solution into a collapsible pouch formed of vapor-impermeable sheet material, sealing the collapsible pouch to form a gas-tight assembly, and heating the gas-tight assembly to...

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Hauptverfasser:	LATOWICKI, DANIEL A, KUTNER, BARRY S
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HAND CARRIED BAGS HAND OR TRAVELLING ARTICLES HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES HYGIENE LUGGAGE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PURSES STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	Method and apparatus for sterilizing articles such as dental handpieces include introducing the article and liquid sterilant solution into a collapsible pouch formed of vapor-impermeable sheet material, sealing the collapsible pouch to form a gas-tight assembly, and heating the gas-tight assembly to vaporize the liquid sterilant solution to produce an atmosphere of hot sterilant vapor. The liquid sterilant is introduced into the pouch in a quantity sufficient to create an overpressure when vaporized which is indicated by the collapsible pouch expanding to a distended condition. In one embodiment, the liquid sterilant solution is vaporized by irradiating the gas-tight assembly with microwave radiation in which case the article is sterilized under the combined effects of chemical vapor and microwave irradiation.