Appeal No. 1996-3973
Application No. 08/048,657
7. The test strip of claim 6, wherein the porous substrate is a nylon
membrane.
8. The test strip of claim 6, wherein the indicator reagent is DMAB.
9. The test strip of claim 6, wherein the reactive reagent is selected from
the group consisting of glucose oxidase and peroxidase.
10. The test strip of claim 6, wherein the spreading agent is selected from
the group consisting of cellulose acetate and diatomaceous earth.
11. A multilayer test strip, comprising:
a first layer comprising an indicator reagent impregnated into a porous
substrate, wherein the indicator reagent is DMAB;
a second layer, overlying the first layer, comprising a reactive reagent that
reacts with glucose in human blood, the reactive reagent being selected from the
group consisting of glucose oxidase and peroxidase, and
a third layer, overlying the second layer, comprising a spreading agent that
promotes the spreading of a droplet of blood upon the third layer; and
an inert backing overlying the third layer, the backing layer having an
aperture therethrough to the third layer, the aperture being in registry with the first
layer, the second layer, and the third layer.
12. A multilayer test strip, comprising:
a first layer comprising an indicator reagent impregnated into a porous
substrate, wherein the indicator regent is DMAB;
a second layer, overlying the first layer, comprising
a reactive reagent that reacts with glucose in human blood, the
reactive reagent being selected from the group consisting of glucose oxidase and
peroxidase, and
a spreading agent that promotes the spreading of a droplet of blood
upon the second layer; and
an inert backing overlying the second layer, the backing having an aperture
therethrough to the second layer, the aperture being in registry with the first layer
and the second layer.
13. A test strip, comprising:
a reaction unit layer structure, comprising
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