Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Reexamination Certificate
2004-11-12
2009-06-02
Warden, Jill (Department: 1797)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
C422S001000, C422S029000, C422S030000, C422S032000, C422S034000, C422S305000, C600S001000, C600S003000, C600S007000, C600S008000, C604S048000, C604S057000, C604S059000, C604S060000
Reexamination Certificate
active
07540998
ABSTRACT:
A process is provided for sterilizing brachytherapy devices with Ethylene Oxide gas and releasing the devices on a parametric release basis. Devices that can be sterilized with this process include interstitial radiation seed strand implants and the needles used for implantation. In order to be sterilized effectively by EtO gas, the devices are constructed such that surfaces not readily infused with EtO gas are made to be gas permeable, and will not retain the gas after the sterilization process. Performance qualification of the sterilization process is performed through physical and microbiological studies, and set of established physical process parameters. Maintaining the physical process parameters in subsequent sterilization cycles will consistently yield the desired sterility assurance level without having to test the devices for sterility.
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Int'l Search Report for PCT/US04/38647, May 18, 2005.
Lamoureux Gary A.
Terwilliger Richard A.
Biocompatibles UK Limited
Chorbaji Monzer R.
Fliesler & Meyer LLP
Warden Jill
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