Hollow frustum reagent test device

Details Hollow frustum reagent test device Hollow frustum reagent test device

1996-08-09

1998-12-08

Snay, Jeffrey

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Calorimeter

422 58, G01N 2178

Patent

active

058464867

ABSTRACT:
A hollow, frustum-shaped disposable device is used in an apparatus for measuring the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a porous membrane, to which a sample of the fluid may be applied. Preferably, a reagent in the membrane reacts with the analyte to cause a color change. The device is mounted on a meter, which measures the color change and computes from the change the analyte concentration in the sample. The apparatus permits remote dosing of the device, which minimizes the likelihood of cross-contamination between the user and the meter. Devices can be mounted on the meter and released from the meter without touching them, to further protect against contamination.

REFERENCES:
patent: 3991617 (1976-11-01), d'Autry
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4774058 (1988-09-01), Mehl
patent: 4787398 (1988-11-01), Garcia et al.
patent: 4952373 (1990-08-01), Sugarman et al.
patent: 5100620 (1992-03-01), Brenneman
patent: 5137691 (1992-08-01), Parker
patent: 5304468 (1994-04-01), Phillips et al.
patent: 5556598 (1996-09-01), Raybuck et al.
patent: 5563031 (1996-10-01), Yu

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