Printed reagent test devices and method of making same
AssigneeMiles Laboratories, Inc.
InventorLeighton Clifford Johnson
Life of this patent
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Abstract
A test device for determining the presence of a constituent in a sample, and a method for making it are disclosed. The test device comprises reactants (e.g. reagents, enzymes, etc.) incorporated with a carrier matrix such that when the device is wetted with a test sample, the reactants and the constituent react to produce a detectable response. The reactants are positioned separately from each other on the matrix in substantially, discrete, non-contacting areas. Hence, reactants are maintained substantially separate from each other until the test device is wetted with the sample.
Claims12
In a test device for determining the presence of a constituent in a sample in which a carrier matrix is incorporated with a reagent system capable of interacting with the constituent to produce a detectable response, said system comprising at least two reactants, the improvement wherein at least two of the reactants are printed separately from each other in substantially discrete, non-contacting, substantially coplanar areas of the carrier matrix.
A test device for the detection of a constituent in a bodily fluid comprising a carrier matrix having a surface, and a reagent system comprising at least two reactant materials, said materials being separately printed in discrete areas on said surface in substantially discrete, non-contacting relation.
Dependencies are inferred from the claim text.