摘要:
A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.
摘要:
An apparatus and process for hydrogen peroxide vapor sterilization of medical instruments and similar devices make use of hydrogen peroxide vapor released from an inorganic hydrogen peroxide complex. The peroxide vapor can be released at room temperature and atmospheric pressure; however, the pressure used can be less than 50 torr and the temperature greater than 86.degree. C. to facilitate the release of hydrogen peroxide vapor. Preferred hydrogen peroxide complexes for use in the invention include Na.sub.4 P.sub.2 O.sub.7.3 H.sub.2 O.sub.2 and KH.sub.2 PO.sub.4.H.sub.2 O.sub.2. The heating rate can be greater than 5.degree. C. Optionally, a plasma can be used in conjunction with the vapor.
摘要翻译:用于医疗器械和类似装置的过氧化氢蒸气灭菌的装置和方法利用从无机过氧化氢络合物释放的过氧化氢蒸气。 过氧化物蒸汽可以在室温和大气压下释放; 然而,使用的压力可以小于50托,并且温度大于86℃以促进过氧化氢蒸气的释放。 用于本发明的优选的过氧化氢配合物包括Na 4 P 2 O 7·3H 2 O 2和KH 2 PO 4·H 2 O 2。 加热速率可以大于5℃。任选地,等离子体可以与蒸气结合使用。
摘要:
A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.
摘要:
A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.
摘要:
A method of making an inorganic salt-hydrogen peroxide complex includes the following steps: (a) mixing the inorganic salt with sufficient water for a time sufficient to form a soft paste, (b) mixing the paste with an aqueous hydrogen peroxide solution to form a hydrogen peroxide-containing paste, and (c) drying the hydrogen peroxide-containing paste. A hydrate method of making Na.sub.4 P.sub.2 O.sub.7.3H.sub.2 O.sub.2 includes the steps of: mixing sodium pyrophosphate decahydrate solid with an aqueous solution of hydrogen peroxide having a concentration of less than 30%, and drying the mixture. Compositions of matter include K.sub.2 HPO.sub.4.3H.sub.2 O.sub.2, KH.sub.2 PO.sub.4.H.sub.2 O.sub.2 Ca.sub.2 P.sub.2 O.sub.7.nH.sub.2 O.sub.2, Ca.sub.2 P.sub.2 O.sub.4.nH.sub.2 O.sub.2, Na.sub.2 SO.sub.4.nH.sub.2 O.sub.2, K.sub.2 SO.sub.4.nH.sub.2 O.sub.2, Na.sub.2 SiO.sub.3.nH.sub.2 O.sub.2 and Na.sub.2 SiO.sub.7.nH.sub.2 O.sub.2.
摘要:
An apparatus and process for hydrogen peroxide vapor sterilization of medical instruments and similar devices make use of hydrogen peroxide vapor released from an inorganic hydrogen peroxide complex. The peroxide vapor can be released at room temperature and atmospheric pressure; however, the pressure used can be less than 50 torr and the temperature greater than 86.degree. C. to facilitate the release of hydrogen peroxide vapor. The heating rate can be greater than 5.degree. C. Optionally, a plasma can be used in conjunction with the vapor.
摘要:
A method and an apparatus for sterilizing a lumen device. A lumen and a container having an interface on a wall of the container are enclosed in a chamber. The lumen is placed across the interface so that one end of the lumen is in the container and the other end is in the chamber. Germicide is introduced into the chamber, and a pressure difference is created between the two ends of the lumen, so that the germicide flows through the lumen. The lumen may alternatively be placed across an interface which separates the chamber into two areas. Germicide is introduced into the chamber, and a pressure difference is created between the two areas of the chamber, causing the germicide to flow through the lumen.
摘要:
A method for sterilizing the interior and the exterior of a lumen device in a multi-chambered compartment with an interface with an adjustable opening in the interface. The lumen is placed partly in the first chamber and partly in the second chamber across the interface, sterilant is introduced into the multi-chambered compartment, and a flow is created between the two chambers through the lumen. The adjustable interface may be equipped with expandable material, compressible material, or inflatable material. Hydrogen peroxide or peracetic acid are suitable sterilants.
摘要:
A sterilized article is within the interior of a diffusion-restricted container. The container substantially prevents entry of microorganisms into the interior thereof. The container has at least one entry/exit port which permits entry/exit of gas and/or vapor into/out of the interior, but prevents entry of microorganisms into the interior.
摘要:
An improved apparatus and method for measuring the concentration of hydrogen peroxide vapor or gas in a sterilization chamber. The hydrogen peroxide is measured spectrophotometrically in the ultraviolet region between 200 and 400 nm. Because water vapor does not absorb in the ultraviolet region, it does not interfere with the determination of the concentration of the hydrogen peroxide vapor. Although organic compounds have absorbances in the ultraviolet region, the organic compounds are removed by evacuating the sterilization chamber to low levels before doing the hydrogen peroxide determination. The ultraviolet light source is either a low pressure mercury vapor lamp with an emission at 254 nm or a deuterium lamp with an optical filter selective of 206 nm light. A movable gas cell can be used to measure the hydrogen peroxide concentration at various areas in the sterilization chamber. The measurement system can be combined with a feedback loop to control the concentration of hydrogen peroxide in the sterilization chamber.