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Abstract

Methods and systems for sterilizing medical devices including, but not limited to, a pre-filled syringe. A method for sterilizing a pre-filled syringe may comprise placing the pre-filled syringe in a sterilization chamber and performing a plurality of pulsed sterilization steps. Each pulsed sterilization step may comprise drying the sterilization chamber, humidifying the sterilization chamber, evacuating the sterilization chamber to a target pressure, introducing a quantity of NO2 to the sterilization chamber from a buffer tank that is selectively fluidly linked to the sterilization chamber, passing a predetermined quantity of air through the buffer tank and into the sterilization chamber to aid in rinsing NO2 from the buffer tank into the sterilization chamber, and after the quantity of air is passed through the buffer tank, holding the sterilization chamber for a dwell period at a dwell pressure.

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First Claim