Analytical test strip with capillary sample-receiving chambers separated by a physical barrier island

摘要

An analytical test strip for the determination of an analyte (such as glucose and/or hematocrit) in a bodily fluid sample (such as a whole blood sample) includes a first capillary sample-receiving chamber, a second capillary sample-receiving chamber, and a physical barrier island disposed between the first and second capillary sample-receiving chambers. Moreover, the physical island barrier is disposed such that bodily fluid sample flow between the first capillary sample-receiving chamber and the second capillary sample-receiving chamber is prevented during use of the analytical test strip.

主权项

1. A method for determining an analyte in a bodily fluid sample, the method comprising:
providing an analytical test strip, the analytical test strip having:
an electrically insulating substrate layer;at least one reference electrode and a plurality of working electrodes, all of which are disposed on the electrically insulating substrate layer; andan enzymatic reagent layer disposed over at least one of, but not all of the working electrodes; applying a bodily fluid sample to the analytical test strip such that the applied bodily fluid sample fills a first capillary sample-receiving chamber and a second capillary sample-receiving chamber of the analytical test strip and is prevented from flowing between the first capillary sample-receiving chamber and the second capillary sample-receiving chamber by a physical barrier island; measuring at least a first response of the analytical test strip; and determining the analyte based on the first measured electrochemical response.