Wash ring assembly and method of use

Details Wash ring assembly and method of use Wash ring assembly and method of use

G - Physics

01

N

G01N 35/10 (2006.01) G01N 35/00 (2006.01) C12Q 1/68 (2006.01) C40B 60/00 (2006.01)

Patent

CA 2687061

Devices, including a wash ring assembly, and methods are provided for the removal of excess fluid or solids from the exterior or interior of a probe used to transfer fluids, for instance, in an automated assay device. Typically, a probe is used to aspirate and dispense a sample fluid material such as whole blood or a reagent. The devices and methods provided herein are useful for removing excess fluid from the exterior or interior of the probe so as to prevent dripping and cross-contamination between samples or reagents. It is also contemplated that, utilizing the devices and methods provided herein, washing and/or drying can be performed simultaneously as the probe is in motion, aspirating a sample and/or dispensing a sample.

L'invention porte sur des dispositifs, dont un anneau de lavage et sur des méthodes d'élimination des fluides ou des solides en excès de l'extérieur ou de l'intérieur d'une sonde de transfert de fluides, par exemple,dans un dispositif d'essai automatisé de bioessais. La sonde est normalement utilisée pour aspirer et distribuer un fluide échantillon tel que du sang entier ou un réactif. Les dispositifs et les méthodes de l'invention sont utiles pour éliminer les fluide en excès de l'extérieur ou de l' intérieur de la sonde, et pour empêcher le suintement et les contaminations croisées entre les échantillons et les réactifs. L'invention porte également sur l'utilisation desdits dispositifs et méthodes permettant d'effectuer simultanément: le lavage et/ou le séchage alors que la sonde bouge, l'aspiration d'un échantillon, et la distribution d'un échantillon.

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