(b)(4).Internal file number - (b)(4): during processing of this complaint, attempts were made to obtain complete event, patient and device information.The device was received.Investigation is not yet complete.A follow up report will be submitted with all additional relevant information.
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It was reported that when advancing the 5.5 x 150 supera stent delivery system over an unspecified guide wire, there was resistance advancing the supera over the guide wire due to dried blood and contrast on the guide wire.The supera had not advanced into the patient, so the delivery system was being removed from the guide wire when the stent flowered out of the delivery system.Another supera and guide wire were successfully used to complete the procedure.There was no clinically significant delay in procedure and no adverse patient effects.No additional information was provided.
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(b)(4).Internal file number - (b)(4).Evaluation summary: visual, dimensional and functional inspections were performed on the returned device.The reported difficulties were confirmed.A review of the lot history record revealed no manufacturing nonconformities that would have contributed to this complaint.Additionally, a review of the complaint history of the reported lot revealed no other incidents.Based on the reported information, the resistance advancing the supera over the guide wire was due to dried blood and contrast on the guide wire, resulting in the stent flowering during removal.The investigation determined the difficulties were due to operational context.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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