Age at time of event: 18 years or older.(b)(4).Device evaluated by mfr: returned product consisted of a coyote es balloon catheter.There was contrast and blood in the inflation lumen and balloon.The shaft, balloon, and tip were microscopically examined.There were numerous locations with buckling of the shaft and under the balloon.The balloon was bunched up.The distal tip was damaged.Functional testing was performed by attaching an inflation device filled with water to the device.When positive pressure was applied, a stream of water emitted from the shaft wall.The shaft was microscopically examined and a hole in the shaft wall 5.3cm distal of the exit notch was revealed.Microscopic examination presented no irregularities in the shaft material that could have contributed to the damage.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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