(b)(4).Device evaluated by mfr: returned product consisted of an emerge balloon catheter with an unidentified stopcock attached to the hub.The balloon was loosely folded.The outer shaft, inner shaft, balloon and tip were microscopically examined.The device was hooked up to an inflation device containing water and the device leaked water from the shaft at the exit notch.There is damage and a puncture hole in the shaft at the exit notch causing the device to leak at that location.The damage at the exit notch is consistent with damage that is caused by the guidewire.Inspection of the remainder of the device presented no other damage or irregularities.There was no evidence of any material or manufacturing deficiencies contributing to the damage.The investigation conclusion is caused by other device as another device/drug/subsequent procedure caused the complaint event.(b)(4).
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