Patent ID: 6251083
Filing Date: 2001-06-26
Classification: A61B

Abstract:
A device for determining the presence or concentration of an analyte in the interstitial body fluid of a patient, the device comprising:(a) a plurality of test areas, each test area independently comprising (i) a porous matrix material having an absorption side and a test side and (ii) an indicating reagent system positioned on or impregnated in the test side of the porous matrix material, wherein each indicating reagent system is capable of indicating the presence or concentration of an analyte in interstitial body fluid by producing a spectrophotometric change upon contact with the interstitial body fluid;(b) a substantially non-porous material separating each test area from adjacent test areas;(c) an attachment means for attaching the device to the skin of a patient; and(d) an extraction means for extracting interstitial body fluid through the skin of the patient;wherein each test area is oriented so that the absorption side of the test area is positioned to contact the interstitial body fluid extracted through the skin of the patient.