Health Canada — Medical Devices · Canada · 2017-03-31 · Type II
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Reported risk: The adjustable mechanism in the Strata device allows the physician to non-invasively adjust the valve's pressure/performance level using a magnetic adjustment tool included with the strata adjustment kit or with the Stratavarius System. Accumulation of biological debris within the valve adjustment mechanism may inhibit the free rotation of the valve magnet when exposed to 3T MRI and may become reverse polarised. This may result in discrepancies between the pressure level readings on the strata indicator tool or Stratavarius System.
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