Chemistry: analytical and immunological testing – Optical result – With reagent in absorbent or bibulous substrate
Patent
1998-08-31
2000-11-28
Snay, Jeffrey
Chemistry: analytical and immunological testing
Optical result
With reagent in absorbent or bibulous substrate
436180, G01N 3350
Patent
active
061534390
ABSTRACT:
A diagnostic sampling device and system for analyzing body fluids includes a transparent housing defining a test chamber therein in communication with a fluid inlet and a gas outlet, a test strip disposed in the test chamber and having an indicating portion reactive to a condition of the body fluids, and a ruler positionable outside the housing adjacent the test chamber for comparison with indicating portions of the test strip. A plug disposed in the gas outlet of the housing permits gas flow while preventing passage of body fluids, and is preferably formed of a porous material having a capacity to seal the gas outlet when contacted by body fluids. An absorbent filter is also disposed in the housing between the fluid inlet and the test chamber. The fluid inlet can be configured to couple with the proximal end of an enteral feeding tube, in which case the gas outlet is preferably configured to couple with a syringe so that the housing can be filled in-line with aspirated body fluids drawn from the enteral feeding tube by creating suction with the syringe. Alternatively, the fluid inlet can be configured to couple with a syringe such that body fluids can be aspirated from the enteral feeding tube directly using the syringe and expelled into the housing off-line via the fluid inlet.
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