This monitor returned to service about 3 months after purchase with malfunctioning main board battery charging circuitry.With no visible sign of physical damage or fluid contamination into the monitor, unknown what caused the main board to fail this prematurely.A device history record (dhr) review was conducted which indicated all inspections were completed and no issues were noted during manufacture.Operator of device is unknown.Initial reporter also sent report to fda is unknown.This remediation mdr was generated under protocol (b)(4), as a result of warning letter cms# 617147.
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