(b)(4).Evaluation summary: the device was returned for analysis.The reported failure to advance could not be replicated in a testing environment as it was based on operational circumstances.However, balloon peeling was noted.Based on the visual and dimensional analysis of the device, there is no indication of a product deficiency.A review of the lot history record revealed no non-conformances that would have contributed to the reported event.A query of the complaint handling database revealed no other incidents for failure to advance reported from this lot.Based on the information reviewed, there is no indication of a product deficiency.Though the device is not approved for sale in the u.S., it uses a delivery system which is similar to a device sold in the u.S.
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