US 11,719,687 B2
Analyte detection meter and associated method of use
Sridhar Iyengar, Salem, NH (US); Ian Harding, Wells (GB); Richard Williams, Somerville, MA (US); and Kevin Cai, Acton, MA (US)
Assigned to AgaMatrix, Inc., Salem, NH (US)
Filed by AgaMatrix, Inc., Salem, NH (US)
Filed on Dec. 17, 2018, as Appl. No. 16/222,683.
Application 16/222,683 is a continuation of application No. 13/835,672, filed on Mar. 15, 2013, granted, now 10,168,313.
Prior Publication US 2019/0113498 A1, Apr. 18, 2019
Int. Cl. G01N 33/487 (2006.01); G01N 27/327 (2006.01)
CPC G01N 33/48771 (2013.01) [G01N 27/3274 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for encoding characteristic information on a test strip, the test strip having only two electrodes and a double layer capacitance (DLC) when sample covers the electrodes in a sample space, the method comprising performing a step to control or alter a variable within the sample space which impacts the DLC,
wherein the step of controlling or altering the variable is performed during manufacture of the test strip and prior to introduction of sample to the sample space and such that the DLC falls within a predetermined range of values,
wherein the step to control or alter a variable within the sample space which impacts the DLC comprises a step selected from the group consisting of, controlling or altering the surface of either or both of the electrodes within the sample space of the test strip; and controlling or altering the material of construction of either or both of the electrodes within the sample space of the test strip;
thereby encoding characteristic information on the test strip;
wherein the characteristic information encoded on the test strip is information selected from the group consisting of: calibration information, regional or country coding, product identification, customer identification, assay type, and date of manufacture.