A system for diagnosing COVID-19 infection. The system includes an electrochemical probe with three needle-shaped electrodes configured to be inserted into a sputum sample, an electrochemical stimulator-analyzer electrically connected to the electrochemical probe, a memory having processor-readable instructions stored therein, and a processor configured to access the memory and execute the processor-readable instructions to perform a method. The method includes applying a sweeping range of electrical potentials to the electrochemical probe utilizing the electrochemical stimulator-analyzer, measuring a set of generated electrical currents versus the applied sweeping range of electrical potential utilizing the electrochemical stimulator-analyzer, receiving the set of electrical currents from the electrochemical stimulator-analyzer, measuring a level of reactive oxygen species (ROS) in the sputum sample by measuring a current peak of the set of electrical currents, and detecting a COVID-19 infection status based on the measured level of ROS. Detecting the COVID-19 infection status includes detecting an infection with COVID-19 if the measured current peak is in a first range of current peaks and detecting a non-infection with COVID-19 if the measured current peak is in a second range of current peaks.

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.

A hand-held point of care monitoring system that includes a plurality of assay modules configured to receive different assay devices that perform assays on one or more samples. At least two of the assay modules or at least two of the assay devices have different identifiers that identify the assays. The system also includes an apparatus having a portable frame configured to interchangeably receive the plurality of assay modules in a same port; a means for decoding the different identifiers when received by the frame; and a means for reading assay results.

A detection device having identification information, an analyzer for reading the identification information and an identification method therefor. The detection device includes an upper plate and a bottom plate, which are assembled together to form the housing of the detection device. An identification element (15) for identifying the type of the detection device is disposed on the housing, and the identification element (15) includes at least one identification area, on which at least one recessed portion (152) or one non-recessed portion (151) is disposed. Through cooperation of the identification element (15) disposed on the detection device and a detection switch on the analyzer, i.e., through whether the detection switch of the analyzer is triggered by the identification element (15) or not, the analyzer generates a signal corresponding to whether the corresponding signal is triggered or not to identify the type of the detection device, and the analyzer can automatically identify the type of the detection device in use without the need of selecting the type of the detection device by the user.

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.

A system for diagnosing COVID-19 infection. The system includes an electrochemical probe with three needle-shaped electrodes configured to be inserted into a sputum sample, an electrochemical stimulator-analyzer electrically connected to the electrochemical probe, a memory having processor-readable instructions stored therein, and a processor configured to access the memory and execute the processor-readable instructions to perform a method. The method includes applying a sweeping range of electrical potentials to the electrochemical probe utilizing the electrochemical stimulator-analyzer, measuring a set of generated electrical currents versus the applied sweeping range of electrical potential utilizing the electrochemical stimulator-analyzer, receiving the set of electrical currents from the electrochemical stimulator-analyzer, measuring a level of reactive oxygen species (ROS) in the sputum sample by measuring a current peak of the set of electrical currents, and detecting a COVID-19 infection status based on the measured level of ROS. Detecting the COVID-19 infection status includes detecting an infection with COVID-19 if the measured current peak is in a first range of current peaks and detecting a non-infection with COVID-19 if the measured current peak is in a second range of current peaks.

A system for diagnostic testing may include a meter for performing a diagnostic test on a sample applied to a test media, the meter having a housing and an interface for receiving a signal representing coding information, and a container configured to contain test media compatible with the meter, the container having a coding element associated therewith. Additionally, the system may provide a mechanism for removing the meter from an interconnected test container and reattaching it to a new container using on-container coding methods that can recalibrate the meter for the new container of test strips.

A method for diagnosing COVID-19 infection of a person. The method includes acquiring a sputum sample of a person, measuring a level of ROS in the sputum sample, and detecting a COVID-19 infection status of the person based on the measured level of ROS. Measuring the level of ROS in the sputum sample includes recording a cyclic voltammetry (CV) pattern from the sputum sample and measuring a current peak of the recorded CV pattern. Detecting the COVID-19 infection status of the person includes detecting COVID-19 infection of the person responsive to the measured current peak being in a first range of more than 230 A and detecting COVID-19 non-infection of the person responsive to the measured current peak being in a second range of less than 190 A.

A method for diagnosing COVID-19 infection of a person. The method includes acquiring a sputum sample of a person, measuring a level of ROS in the sputum sample, and detecting a COVID-19 infection status of the person based on the measured level of ROS. Measuring the level of ROS in the sputum sample includes recording a cyclic voltammetry (CV) pattern from the sputum sample and measuring a current peak of the recorded CV pattern. Detecting the COVID-19 infection status of the person includes detecting COVID-19 infection of the person responsive to the measured current peak being in a first range of more than 230 A and detecting COVID-19 non-infection of the person responsive to the measured current peak being in a second range of less than 190 A.

A system for diagnostic testing may include a meter for performing a diagnostic test on a sample applied to a test media, the meter having a housing and an interface for receiving a signal representing coding information, and a container configured to contain test media compatible with the meter, the container having a coding element associated therewith. Additionally, the system may provide a mechanism for removing the meter from an interconnected test container and reattaching it to a new container using on-container coding methods that can recalibrate the meter for the new container of test strips.