Various embodiments for systems and methods that allow for a more accurate analyte concentration with a biosensor by obtaining two calibration codes, one for batch calibration due to manufacturing variations and the other for time calibration due to measured physical characteristics of the fluid sample.

A blood glucose test strip includes a test strip, a blood test area formed on a first end of the test strip, an electrode formed on a second end of the test strip, a data barcode formed on the test strip, and a clock code formed on the test strip. The data barcode may include a plurality of first bars with spaces separating the first bars, each first bar having a width. The clock code may comprise a fixed pattern of second bars with spaces separating the second bars, a width of each second bar set according to the width of at least one of the first bars. The clock code can be used to calibrate the data barcode to compensate for insertion speed and/or moisture content.

Disclosed herein are a detection device and a detection method. The detection device comprises: a consumable cassette (1) configured to have a detection side (A) provided with a consumable, the consumable cassette (1) being provided with a circuit board (3) carrying a test information; and a detection instrument configured to read the test information from the circuit board (3) and perform a detection to the consumable based on the test information to obtain a detection result. Also provided is a detection method comprising: providing the detection device (S1); placing the consumable cassette (1) into the detection instrument (S2); obtaining a test information by the detection instrument (S3); determining, according to the test information, whether the consumable is in compliance with a detection requirement (S4); and performing a detection to the consumable by the detection instrument to obtain a detection result when the consumable is in compliance with the detection requirement (S5). The test information is obtained with lower cost. An accuracy and an efficiency of the detection are improved.

A test sensor (100) for determining an analyte concentration in a biological fluid comprises a strip including a fluid receiving area (128) and a port-insertion region (126). A first row of optically transparent (132) and non-transparent positions forms a calibration code pattern (130) disposed within a first area of the port-insertion region (126). A second row of optically transparent (142) and non-transparent positions forms a synchronization code pattern (140) disposed within a second area of the port-insertion region (126). The second area is different from the first area. The synchronization code pattern (140) corresponds to the calibration code pattern (130) such that the synchronization code pattern (140) provides synchronization of the serial calibration code pattern (130) during insertion of the port-insertion region (126) into the receiving port of the analyte meter.

Systems and methods directed to a monoclonal antibody covalently conjugated to latex in a two-step process to be used with a test strip and mobile-phone connected fluorimeter device. The test strip is combined with a method of analysis for quantitative detection of NT pro-BNP using the mobile device. A method for NT-proBNP testing system includes reading the test at an initial time point and at specific intervals during development of the test result, the dynamic behavior of the test can be used to distinguish differences between samples that would otherwise be difficult to differentiate by an end-point measurement due to the hook effect. Using two fluorescent tags with different excitation wavelength or emission wavelengths, or two colored beads with different absorption wavelengths, the test and the control line can simultaneously be read as they develop and dynamic formation can be used to distinguish high levels.

A synthetic, cognitive cell, system, and method for automatically generating an output based on an environmental input is disclosed. The cognitive cell includes an operator including chemical agents, and a coded chemical including polymers. Each of the polymers includes a sequence of affinity blocks of molecular groups arranged in predetermined patterns to define a multi-layered base code. Each of the affinity blocks includes a monomer with a sidechain, the sidechains having affinities to each other. At least a portion of the affinity blocks forming a gate switch defining a bridge between the environmental inputs and the chemical agent whereby, upon exposure to the environmental inputs, the gate switches trigger the chemical agent to perform an operation. The coded chemical and at least one chemical agent are contained within a natural or synthetic membrane.

An embodiment provides a method for selecting a color for a chemistry or instrument based upon a parameter of a test, the method including: identifying a color corresponding to a parameter of a test for the parameter; selecting, if the color corresponding to the parameter has not previously been used for another parameter, the color for designating a chemistry or an instrument as corresponding to the parameter; selecting, if the color corresponding to the parameter has previously been used for another parameter, a different color other than the color for designating a chemistry or an instrument as corresponding to the parameter, wherein the selecting a color other than the color comprises identifying a color having a measure of change in visual perception of the different color against other previously selected colors a predetermined value from the other previously selected colors; and utilizing the selected colors for parameters across both chemistries and instruments that are utilized in tests for the parameters.

A test strip with an incorporated optical waveguide and deflectors punched through the optical waveguide allows light to exit through a layer of the test strip and be detected by a photo detector. Using light and a photodetector, these uniquely coded strips are identified. The waveguide can be constructed by sandwiching two layers of the test strip around a light transmissible layer. This configuration allows light to be transmitted through the test strip and out the other end, as well as allowing some light to escape the deflector. This light is detected by a photodetector mounted in the analyte test meter. The deflectors may be placed in patterns such that detection of this light indicates certain characteristics of the strip, such as non-counterfeit, regional identification, type of analyte tested, and coding information.

A method of positioning a tape that includes determining an estimated position of a test element on the tape and rotating a spool that carries the tape in order for the test element to be positioned at a reading station. The estimated position of the test element is determined based on detected rotation of the spool, which can be measured at any shaft in the drive train. Also disclosed is a testing process for testing a sample deposited on a test element of a tape held on a spool of a cassette, a system for determining an estimated position of a test element on a tape which is carried by a cassette, and a memory storage medium associated with an in vitro diagnostic test cassette.

A method for obtaining information encoded on an electrochemical test strip is provided. The test strip has two electrodes disposed within a sample space and the information is encoded on the test strip prior to introduction of liquid sample. The method includes the step of introducing sample to the sample space so that the sample is in contact with the two electrodes within the sample space. In another step a value is determined that is representative of the double layer capacitance of the test strip and/or the equivalent capacitance of the test strip. The determined value is then translated into information reflecting a characteristic of the test strip prior to introduction of sample.