(b)(4).Device evaluated by mfr: returned product consisted of a nc emerge balloon catheter in two pieces.The shaft and hypotube were microscopically and visually examined.There was contrast in the inflation lumen and blood in the guidewire lumen and between the balloon folds.The balloon was tightly folded.Although it was reported that the device was not used in the patient, the presence of blood in the guidewire lumen and contrast media inflation lumen is indicative of handling beyond simply unpackaging the device, as was reported.There were numerous kinks throughout the hypotube of the device.There was a complete hypotube separation 66.5cm from the strain relief.The hypotube fracture surfaces were ovaled, which suggests the device was kinked prior to separation.Inspection of the remainder of the device, apart from the observed damage, revealed no other damage or irregularities.No other issues were identified during the product analysis.The manufacturing batch record review confirmed that the device met all material, assembly and performance specifications.The most probable root cause is operational context as device performance was limited due to anatomical procedural factors.(b)(4).
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It was reported that shaft break occurred.A 3.25mm x 15mm nc emerge® balloon catheter was selected for use.However, during unpacking, upon removing the device out from the hoop, it was noted that the mid shaft got separated.The procedure was completed with another of the same device.No patient complications were reported.
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