AIA-900 Automated Immunoassay Analyzer, product code 022930 /022930R Product Usage: The AIA-900 is capable of performing three methods of immunoassay: an immunoenzymetric (IEMA) or sandwich immunoassay, a competitive binding (EIA) immunoassay, and a two-step immunoenzymetric immunoassay. An antigen-antibody reaction begins by combining a patient sample, control, or calibrator with a diluent in an immunoreaction test cup from the AIA-PACK reagent series.

Tosoh Bioscience has become aware of a potential issue with the axis base of the turntable rotation drive motor on the AIA-900 Analyzer. If the tension of the timing belt between the turntable rotation pulley and drive motor is not adjusted correctly, it is possible to increase the lateral load on the motor axis resulting in the inclination and damage of the motor axis. Since January 12, 2017, Tosoh has been inspecting the tension of the timing belt during scheduled preventative maintenance visit and correcting the analyzers where this issue has been observed. If the drive motor fails, the AIA-900 analyzer will cease to function and will be unavailable for use. If this issue occurs, there may be a delay in testing and reporting patient test results. Tosoh has received five (5) complaints related to this issue with no serious injuries reported.

On October 5, 2018, the firm issued an Urgent Medical Device Recall - Correction letter to affected customers. The letter described the product issue and advised customers that since January 12, 2017, Tosoh has been inspecting the tension of the timing belt during scheduled preventative maintenance visit and correcting the analyzers where this issue has been observed. Serial numbers of affected AIA-900 analyzers which have not yet been inspected were provided as a list. Immediate Actions to be taken by the Customer/User " Thoroughly review the content of the letter. " File this notice with your laboratory records and forward this information to other supervisors or managers in your laboratory to ensure that they are aware of the potential issue. " Complete and return the attached Acknowledgement Form by any of the listed methods. " Identify if the serial number of your AIA-900 analyzer is listed in the letter, contact Technical Support to schedule a preventative maintenance service visit. At the scheduled visit, allow the Tosoh field service engineer to inspect and verify that the axis base of the turntable rotation drive motor is operating as expected or allow the Tosoh field service engineer to correct the potential issue. " If the serial number of your analyzer is not listed, Tosoh service records indicate that the turntable rotation drive motor on your instrument(s) has already been inspected. If you have obtained unexpected test results, delays in test result reporting, or received any complaints of illness or adverse events associated with the use of the analyzer, please contact Tosoh Technical Support 24 hours a day, seven days a week at (800) 248-6764 for an expedited service visit. Should you have any questions regarding this medical device recall, please feel free to contact Bernadette O'Connell at (800) 248-6764 or by email at [email protected]. She will be available to answer any questions Monday - Friday, from 9:00 AM