Diagnostic Equipment

The firm conducted internal investigations that confirmed customer complaints of quality control (QC) imprecision and calibration failures for the Tina-quant Myoglobin Gen.2 assay (catalog number 04580010190), lot number 349860 on the cobas c311 analyzer and cobas c501 and c502 modules due to a drop in signal in the reaction kinetics. This signal drop was traced to an adjacent cell mixing effect. Sample recovery is decreased as a consequence of the disturbance in reaction kinetics. The investigation found discrepancies of up to -30%. Calibration, QC, and patient samples can be affected. The following issues were reported: - Calibration failures; Dup.E error due to signal drop in reaction kinetics - Sporadic quality control (QC) imprecision. As a long-term solution, the firm will implement required extra wash cycles (EWCs) into the respective Special Wash Requirements method sheets for the cobas c 311 analyzer and cobas c 501 and 502 modules, and into the cobas e-file for the cobas c 502 module. For the use of the reagent with the cobas c501 and c502, Roche will also direct users to run the Tina-Quant Myoglobin gen. 2 assay independently from other tests, in a batch mode status, with a maximum of 39 samples per run. Additionally, a change in the application settings of the Tina-quant Myoglobin Gen.2 assay on the cobas c 501 and 502 modules will be implemented so that adjacent cuvettes are no longer used in order to prevent adjacent cell mixing effects. The application settings change will be communicated at a later date.

Potential for the presence of two error codes which would make the monitor inoperable.

The polarity of the output of power supply was reversed. Due to polarity of the output of power supplies being reversed, it renders the power supplies nonfunctional and the analyzer inoperable.

Error in the default configuration which could lead to the incorrect display of patient master data.

An Ad-Tech Clinical Specialist, attended a case on April 15, 2019. During the case the surgeon encountered an issue after implanting four Ad-Tech depth electrodes. Upon initial device testing subsequent to implantation it was identified that two of the devices that were labeled as 8 contact depth electrodes (SD08R-SP05X-000) were in fact 6 contact depth electrodes (SD06R-SP05X-000) . There was no impact to the patient due to this incident.

Abbott has identified an issue with all on market versions (v2.6.0 and v2.6.1) of Alinity ci series Software where incorrect results may occur after a system Stop due to the Alinity i re use of reaction vessels (RVs). This issue only occurs if the system is transitioned from Processing to Stopped to Idle.

Salivary Progesterone assay may observe a higher percentage of samples with low results. Saliva samples in the low measuring range of the kit {< 20 pg/ml) were assayed and producing a significantly lower result.

code 7-102 Liquid Sensor Error

When utilizing specific software versions of an LC/MS device, and Batch at a Glance in Compound Table view, a defect occurs when a new sample(s) is inserted. This defect creates a mismatch between the sample name and the column header whereby the sample header will be offset by one sample. The recalling firm requests that you discontinue using this workflow to generate reports because the Quant batch table will not display fully analyzed results or save any changes made.

Artis zee/Q systems patient tables may potentially have cracks in the table mainframe, and cause mechanical detachment of the upper part of the patient bed and lead to hazardous situations for patients and medical personnel due to falling parts

The firm reported that a faulty cutting/punching machine did not meet specifications after being fitted with new blades and did not correctly "notch" BG test strips intended for use in the US. The impacted strips did not fit into the inlet port of the BG meter, therefore resulting in a delay in BG testing and results.

The action is being initiated due to internal testing which identified a possibility for transducers to exceed the acoustic output power (AOP) values defined . The transit voltage values based on PW Doppler are calculated normally but not loaded correctly into hardware

Residual crystallization of the microplate and recurrent negative controls out of range.

Potential of an open port in the quench venting system when using the optional horizontal outlet on the quench line assembly.

The action is being initiated due to internal testing which identified a possibility for transducers to exceed the acoustic output power (AOP) values defined . The transit voltage values based on PW Doppler are calculated normally but not loaded correctly into hardware

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.

Potential of an open port in the quench venting system when using the optional horizontal outlet on the quench line assembly.

The action is being initiated due to internal testing which identified a possibility for transducers to exceed the acoustic output power (AOP) values defined . The transit voltage values based on PW Doppler are calculated normally but not loaded correctly into hardware

The action is being initiated due to internal testing which identified a possibility for transducers to exceed the acoustic output power (AOP) values defined . The transit voltage values based on PW Doppler are calculated normally but not loaded correctly into hardware

Potential of an open port in the quench venting system when using the optional horizontal outlet on the quench line assembly.