Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using disinfecting or sterilizing substance
Patent
1987-06-05
1989-11-14
Richman, Garry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using disinfecting or sterilizing substance
422 36, 422 37, 514635, 514642, 514693, 514694, 514731, A61L 218
Patent
active
048806021
ABSTRACT:
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 a disinfectant sufficient to destroy without otherwise affecting the integrity of the specimen for future evaluation. The amount of disinfectant positioned in the container is adjusted to provide an ultimate concentration in the blood specimen of aldehyde of about 0.001 to 5.0 weight percent and is buffered to a pH of about 7.2 to 8.5 percent 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 close 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. The aldehyde based disinfectant used in accordance with the invention have also been found to facilitate separation of the fluid components of the blood by causing gelling of cellular blood components.
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Johnston Jill
Richman Garry S.
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