(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.The customer reported the steerable guide catheter was discarded.Investigation is not yet complete.A follow-up report will be submitted with all additional relevant information.
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Internal file number - (b)(4).The device was not returned for analysis.The reported patient effects of thrombosis and mitral valve injury (tissue damage) are listed in the mitraclip system instructions for use, as known possible complications associated with mitraclip procedures.Review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.A definitive cause for the reported patient effects could not be determined and may be related to case circumstances, as the physician stated that what was originally thought to be thrombus may have been septal tissue upon crossing the septum; however, this could not be confirmed.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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