| Model Number |
6802783 |
| Medical Device Problem Code |
False Negative Result (1225)
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| Health Effect - Clinical Code |
No Clinical Signs, Symptoms or Conditions (4582)
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| Date of Event |
03/20/2023
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Type of Reportable Event
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Malfunction
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Event or Problem Description
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A customer contacted the ortho clinical diagnostics (ortho) technical solution center (tsc) to report false non-reactive patient sample results were obtained when a single patient sample that was tested using vitros anti-hcv (ahcv) lot 5320 on a vitros 3600 immunodiagnostic system.The patient was known to be infected with hepatitis c, therefore the vitros ahcv results are false non-reactive results.Patient 1, vitros ahcv results of 0.74 and 0.65 s/c (non-reactive) versus the expected result of reactive biased results of the magnitude and direction observed may lead to inappropriate physician action if they were to occur undetected.The non-reactive vitros ahcv results for patient 1 were not reported from the laboratory.Ortho has not been made aware of any allegation of patient harm as a result of this event.This report corresponds to ortho clinical diagnostics inc (ortho) complaint number (b)(4) and reportability assessment 601630.
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Additional Manufacturer Narrative
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The investigation determined that false non-reactive patient sample results were obtained when a single patient sample was tested using vitros anti-hcv (ahcv) lot 5320 on a vitros 3600 immunodiagnostic system.The patient was known to be infected with hepatitis c, therefore the vitros ahcv results are false non-reactive results.The most likely cause of the event is an instrument related issue.High sd values were observed for the final well wash subsystem of the vitros 3600 immunodiagnostic system prior to service actions and an ortho field engineer (fe) replaced the final well wash motor, two filters and sr probes.Following ortho fe actions, a within-run diagnostic precision testing indicated acceptable instrument performance and an acceptable vitros ahcv result of 2.15 s/c (reactive) was obtained from the same sample for the patient.
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Search Alerts/Recalls
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