Investigation: the packaging of the ligature clips has been analysed visually by using the pictorial documentation.According to the responsible quality coordinator and manager of the production plant, sterile packages are produced and checked according to quality documents.Therefore, a sealing related error can be excluded.Batch history review: the device quality and manufacturing history records have been checked for all available batch numbers and found to be according to our specifications valid at the time of production.No similar incidents have been filed with products from this batch.Conclusion and root cause: based on the available information as well as the result of the investigation the root cause of the failure is most probably related to an insufficient usage.Rationale: based on the investigation a manufacturing related error can be excluded.It is most likely that an inappropriate opening of the package let to the described failure.Corrective action: capa is not necessary.
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