Patent ID: 6622862
Filing Date: 2003-09-23
Classification: A61L

Abstract:
A sterilization container system for sterilizing medical instruments in an autoclave comprising, in combination:a bottom tray formed in a generally rectilinear configuration with a rectangular horizontal bottom wall and rectangular vertical up-standing walls terminating in an upper periphery with an open top forming a reception area within the tray for receiving medical instruments to be sterilized, the up-standing walls of the bottom tray including long side walls and short end walls with the end walls including releasable clamps; a lid formed in a generally rectilinear configuration with a rectangular horizontal upper wall and rectangular vertical depending walls terminating in a lower periphery with an open bottom positionable on the upper periphery of the tray, the depending walls of the lid including long side walls and short end walls with the end walls including reception areas for the releasable clamps to allow locking of the lid to the tray during operation and use, the lid having a large circular aperture through the upper wall with small attachment apertures through the upper wall adjacent to the large circular aperture; a domed support formed with an interior central circular disk and an exterior circular ring with four ribs in a crossing configuration connecting the ring and the disk, the disk having a central aperture there through and plurality of small attachment apertures through the ring aligned with the small attachment apertures of the lid and with bolts through the attachment apertures of the lid and ring and associated nuts coupling the upper surface of the ring to the lower surface of the upper wall of the lid, the domed support being fabricated of thick 304 stainless steel to preclude expansion upon the application of sterilization heat, the ribs being bowed upwardly to extend through the large aperture of the lid and above the upper surface of the lid; a thin dome shaped plate having an upper surface in contact with the lower surface of the support and fabricated of a metal elected from a class of substantially inexpansible alloys including nickel alloy the plate having a central aperture and a periphery positionable adjacent to the lower surface of the ring, the plate adapted to expand upon the application of sterilization heat whereby the periphery will move away from the lower surface of the ring; an elastomeric seal coupled to the lower surface of the ring with an annular recess formed in the lower surface of the ring for receiving the seal, the seal having a downwardly extending point for contacting the periphery of the plate; an annular elastomeric gasket positioned between the ring and the lid with small attachment apertures there through aligned with the attachment apertures of the lid and the ring; a U-shaped spring positioned between the disk and the plate with the spring having an upper aperture aligned with the aperture of the disk and a bolt there through with an associated nut and with the spring having a lower aperture aligned with the aperture of the plate and a bolt there through with an associated nut, the spring thus coupling the plate to the support, the spring and plate adapted to expand when heated to above about 135 degrees Fahrenheit up to a sterilization temperature of about 275 degrees Fahrenheit to create a space between the plate and the disk whereby medical instruments within the container may be sterilized, the spring and plate adapted to contract when cooled to above about 135 degrees Fahrenheit to eliminate any space between the plate and the disk; a pressure equalizing valve in the lid to relieve pressure from the container while cooling while precluding contaminating air from entering the container; and a circular protective guard having a horizontal top and vertical side wall and horizontal attachment areas, the guard fabricated of stainless steel and formed in two layers, each layer perforated with holes of &frac18; inch diameter with centers staggered at about {fraction (3/16)} inch apart, the holes in one layer being unaligned with the holes in the other layer.