G - Physics – 01 – K
Patent
G - Physics
01
K
150/9, 150/16.6
G01K 13/00 (2006.01) A61L 2/00 (2006.01) A61L 2/18 (2006.01) B01L 3/14 (2006.01) H02J 9/04 (2006.01)
Patent
CA 1279245
A B S T R A C T A technique and receptacle for disinfecting biological fluids such as whole blood is described in which the disinfectant is prepositioned in a receptacle for biological fluids utilized for clinical evaluation in an amount which is sufficient to disinfect the fluid without interfering with subsequent clinical evaluation. The invention is specifically directed to disinfecting viral contaminants in blood by providing a closed container for the blood specimen which contains an amount of an aldehyde based disinfectant such as glutaraldehyde sufficient to destroy without otherwise affecting the integrity of the specimen for future evaluation. The amount of aldehyde based disinfectant positioned in the container is adjusted to provide an ultimate concentration in the blood specimen of aldehyde of about 0.01 to 2.5 weight percent and is buffered to a pH of about 7.2 to 8.5 preferably about 7.4. To increase the stability and shelf life of the sample container and disinfectant, activation or buffering to the indicated pH range does not take place until or just prior to introduction of the specimen into the container. In a particularly preferred embodiment of the invention, the closed sample container is evacuated and provided with an elastomeric stopper adapted to receive the hollow needle of a syringe whereby the blood specimen is introduced into the container directly from the donor.
519334
Al-Sioufi Habib
Moffat & Co.
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