(b)(4).
Visual inspection and scanning electron microscopy (sem) analysis was performed on the returned device.
The reported balloon rupture, difficulty removing from the guide wire and separation were confirmed.
The investigation determined the reported difficulties were likely due to case circumstances.
A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.
Additionally, a review of the complaint history identified no other similar incidents from this lot.
The investigation determined the reported difficulties were likely due to case circumstances.
There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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