(b)(4).The device lot number was not provided; therefore a dhr review could not be conducted.There was no complaint device returned for investigation.Therefore , no physical assessment could be conducted and an investigation was based on document review.A simulation test was conducted with representative samples from production on the same catheter size and balloon volume.No issue was observed.In the absence of any actual or representative sample for investigation, we could not further investigate to identify the actual root cause of this reported failure.Therefore, this complaint could not be confirmed.
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