ANALYTICAL TEST STRIP WITH ISOLATED BODILY FLUID PHASE-SHIFT AND ANALYTE DETERMINATION SAMPLE CHAMBERS

摘要

An analytical test strip ("ATS") for use with a hand-held test meter in the determination of an analyte in a bodily fluid sample includes an electrically insulting substrate (102), a first patterned conductor layer (104) disposed on the electrically insulating substrate and having a working electrode (128a, 128b) and a reference electrode (130). The ATS also includes an enzymatic reagent layer (106) disposed on the working electrode, a first patterned spacer layer (108) disposed over the first patterned conductor layer and defining both a first sample-receiving channel (112) and an analyte determination sample chamber (114) within the ATS, and a second patterned spacer layer (110) disposed over the first patterned spacer layer and defining at least a second sample-receiving channel (120). The ATS further includes a bodily fluid phase-shift sample chamber (116) in fluidic communication with the second sample-receiving channel. The first sample-receiving channel (112) and analyte determination sample chamber (114) are isolated from the second sample-receiving channel (120) and bodily fluid phase-shift sample chamber (116).