Extraction method and apparatus for high-sensitivity body...

A - Human Necessities – 61 – B

Patent

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A61B 5/15 (2006.01)

Patent

CA 2674777

An extraction method and apparatus is provided for obtaining quick, safe and highly sensitive testing of any of a variety of body fluids including saliva, blood, urine or other fluids for drugs of abuse or other analytes. The apparatus includes a latchable extraction wand for obtaining body fluid samples from a subject which is adapted to maximize the portion of the body fluid sample that will go into a graduated bottle containing a buffer solution, and a testing device wherein the sample will be received and into which test strips can be inserted to determine levels of drugs of abuse or other analyte in the sample. In one of the methods of the invention, energy is imparted to the sample and buffer solution, such as by shaking, and this facilitates the reduction of sample viscosity, such as by promoting the breakdown of mucins when the sample is saliva.

L'invention concerne un procédé et un appareil d'extraction permettant d'effectuer un essai rapide, fiable et extrêmement sensible sur une variété de liquides organiques, tels que salive, sang, urine ou d'autres liquides, afin de rechercher des produits toxicologiques ou d'autres substances à analyser. Cet appareil comprend un tube de prélèvement verrouillable servant à prélever des spécimens de liquide chez un individu et conçu pour amplifier la partie du spécimen à introduire dans un flacon gradué contenant une solution tampon, ainsi qu'un dispositif d'essai conçu pour recevoir le spécimen et dans lequel on peut insérer des bandes d'essai, de manière à déterminer les niveaux des produits toxicologiques ou d'autres substances à analyser dans le spécimen. Dans un des procédés de l'invention, on applique de l'énergie au spécimen et à la solution tampon par agitation, par exemple, dans le but de faciliter la diminution de la viscosité du spécimen, par exemple, par provocation de la rupture de mucines, lorsqu'il s'agit de salive.

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