Patent ID: 8142721
Filing Date: 2012-03-27
Classification: G01N,Y10T

Abstract:
1. A test strip, comprising: a base substrate having electrodes formed thereon; a reagent layer overlying a portion of the base substrate; a spacing layer overlying at least the reagent layer; a chamber cover overlying a first portion of the spacing layer; a body cover overlying a second portion of the spacing layer, the chamber cover and the body cover having a slot therebetween; wherein the spacing layer has a void that defines a sample receiving chamber between the base substrate and the chamber cover, wherein the slot is in communication with the sample receiving chamber, the slot defining a vent opening between the chamber cover and the body cover that allows air to escape as fluid enters the sample receiving chamber; and wherein the reagent layer is disposed in the sample receiving chamber and covering at least one of the electrodes and extends under the spacing layer and is sandwiched between the spacing layer and the base substrate.