A complaint was received stating that indicator dots were failing to transition to their signal color post sterilization.No lot number was available upon submitting the complaint to crosstex.Suspect product was available, however, returned product was limited to two (2) indicator dots which had already been processed.No unprocessed product was available for additional testing.Due to the unavailability of additional samples for testing, our investigation will be limited to a batch record review.A batch record review for the past two years shows no non-conformances on file or additional anomalies of note.All processed retains demonstrated color changes that were within specification.Additionally, a 1 year complaint history review was performed and no confirmed complaints are on file for this failure mode.This issue has been logged and will be monitored for recurrence.Should you experience additional complaints in relation to this failure mode, or should a lot number become available, a re-assessment will be completed.Note: a retrospective review of potential serious injury complaints was performed.This mdr was identified as a reportable malfunction as a result and filed as part of the review activities.The complained product was not returned and the batch # was not provided.Due to the time frame, it was reasonable to assume that the product fell within the scope.
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