C - Chemistry – Metallurgy – 12 – Q
Patent
C - Chemistry, Metallurgy
12
Q
150/16.2
C12Q 1/22 (2006.01) C12M 1/16 (2006.01) C12M 1/24 (2006.01) C12M 1/28 (2006.01)
Patent
CA 1290229
ABSTRACT OF THE DISCLOSURE A sterility indicator which comprises means defining an elongated outer compartment having liquid impermeable and substantially non-gas absorptive walls, said compartment having a closed end and a first opening at a distal end thereof and a second opening which is gas transmissive and bacteria-impermeable disposed at least partially around the perimeter of said outer compartment and located near said first opening, with a predetermined number of viable microorganisms suitable for monitoring steam sterilization being confined within said outer compartment adjacent said second opening, and a predetermined number of viable microorganisms suitable for monitoring gas sterilization being confined within said outer compartment away from said second opening and opposite said distal end; a closure member normally closing said first opening and moveable to a second position to also close said second opening; and an inner compartment containing a nutrient medium disposed within said outer compartment with said nutrient medium being out of direct contact with said microorganisms, said inner compartment being adapted to open in response to external pressure thereby permitting said nutrient medium to contact said microorganisms.
527810
Mccormick Patrick Joseph
Scoville John Robert Jr.
Macrae & Co.
Mdt Corporation
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