Real Time Nucleic Acid Amplification System（OOI）

The design of the Alinity m System Solutions drawer enclosure may allow liquid (liquid waste or system solutions) originating in the System Solutions drawer to flow beyond the footprint of the instrument and into the walking-path of the user.

False-positive MSI-H results generated by the Idylla MSI Test.

The Alinity m System camera detects whether tubes are "capped." If the camera detects a cap and the retention bar is not present on the sample rack, the system will generate the message 'Error - 6013: Has cap, no retention bar." Abbott has identified an issue concerning the use of certain third-party Universal Transport Medium (UTM) tubes on the Alinity m System. This issue has been observed with Copan UTM-RT 3 mL Without Beads Transport & Preservation Medium for Viral Molecular Diagnostics Testing, Part Number (PN) 3C047N. However, it is possible that other third party manufactured tubes could experience the same issue.

Products that were intended for export only which were not approved or registered in accordance with U.S. specifications were shipped to U.S. customers.

Due to potential false positive Flu B results when a sample was also SARS-CoV-2 positive.

There is a potential for the direct amplification disc to malfunction which may result in spillage of liquid from the disc.

The firm identified the following three potential issues which may have impacted ADUs installed on distributed Alinity m Systems. 1. Systems which had their ADUs serviced may have an incorrect board value (calibration data file) referenced causing a misconfiguration of the calibration. 2. Inability of Maintenance and Diagnostics 2300 (Amp Detect Optical Calibrations) to recognize error handling and thermal hold errors during the calibration process, potentially leading to a misconfiguration of the calibration. 3. Under specific conditions during the ADU manufacturing process, an incorrect calibration may potentially have been configured.

The instrument was found to be installed without plunger assemblies in the clamp bar for an Amplification Detection Unit. After correction of the issue, the instrument was returned for use without calibration. This would result in a potential for delay of results and incorrect results.

Abbott has identified potential performance issues for the Alinity m System software version 1.6.5: 1) In a unique scenario, the waste chute flapper was found to not open when the Systems Solution drawer was closed and locked. It was found that the software will cause the flapper door to stay in the closed position when the drawer is closed and locked if the flapper had previously been moved out of position. 2) Sample preparation drawer #1 barcode information is used instead of sample prep drawer #2 when the scanned data is not sent to the System Control Center before the next bottle barcode in sample prep drawer#2 is scanned. 3) Under a specific condition, while the system is processing tests and a new test request is made, when the level of the bulk solution is too low to process a test, the software would error stop the system and try to complete all in-process tests. An internal counter is reset which can cause reaction vessels (RVs) already present in an Amplification Detection Unit (or amp detect) to remain there and not be moved to waste so that more RVs can be placed into the amp detect for processing. 4) 4 to 6 replicates of the same auto calibrator orders can be run with 2 different sets of calibrator materials on the same rack. It was discovered during internal testing, when running 4 to 6 replicates of a calibrator, it is possible for the user to use 2 separate lots of material which is not detected by the System Control Center (SCC). If this were to occur, the calibration curve would be created using 2 separate material lots. In normal use scenario, this curve would be made using only 1 lot of material.

When a run is aborted, the cooling period protection does not occur and the user is able to open the lid prior to the completion of the cooling period, exposing the user to heated instrument components. Incidental contact with heated instrument components may result in an injury such as minor burns.

Heater within the Verigene System may be outside of established temperature limits for assays which could result in false negative results.

The photomultiplier tube, may have compromised functionality in some instruments. As a result, the user is likely to observe an increase in false-positive or indeterminate results.

There is potential for the Reaction Vessels (RVs) detaching from the RV cap during transport by the pipettor robot.

A subset of affected discs are at risk of leakage when it is used more than one time with Simplexa COVID-19 Direct and/or Simplexa Flu A/B & RSV Direct Gen II. Leakage from a well that had a positive sample may cause further cross-contamination in areas of the lab if not properly cleaned.

Impacted lot may leak inside the ARIES instrument. Testing confirmed a leak rate of 0.9%. Leaking cassettes could potentially lead to incorrect results or a delay in reporting results due to an Invalid.

Roche has identified a small number of cobas Liat analyzer units that have consistently high noise levels (background signal) originating from the amber detector (used for Influenza B detection). This noise increases the probability of false positive Influenza B results.

Impacted lot may leak inside the ARIES instrument.

When using the Rotor-Gene Q with Software version 2.3.4 completing a LIMs export, the .csv file reports the calculated concentration result value as a logarithmic value, and could lead to a false negative result, which could lead to serious medical consequences such as the suspension or non-initiation of treatment

Through internal investigation, it was discovered that a portion of side cassette assemblies (SCAs) back side seal (BSS) did not meet design specification, resulting in partially sealed SCAs. The impact of a partial seal of the BSS could result in potential decrease of volume for each solution in the SCAs and decreased sensitivity or stability of the assay.

An incorrect control board and firmware installed in some of the Hand Held Barcode Scanners could result in sample/patient mismatch or duplicate results (from other patients specimens) for a patient order.