Method and device for bacterial testing
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United States of America Patent
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Sep 10, 1991
Issued Date -
N/A
app pub date -
Oct 19, 1987
filing date -
Feb 4, 1983
priority date (Note) -
Expired
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Abstract
A method of testing for the growth of bacteria in a sample comprises introducing the sample into a sterile bacterial growth medium in a closed vessel incubating the vessel, and observing a pressure change within the vessel which indicates the growth of bacteria in the sample. A device for doing this comprises a bottle 10 with a pierceable closure 12; and a syringe comprising a cylinder 16 and a piston 18 connected to a hypodermic needle 20 which passes through the closure 12 and preferably extends below the surface of the growth medium in the bottle.
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