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As reported, a powerflex pro percutaneous transluminal angioplasty (pta) balloon catheter (bc) was put into the patient, but the balloon would not reach the desired pressure after two attempts due to a small hole at the rear end of the balloon that was noticed when it was removed.There was no reported patient injury.The powerflex pro pta bc was flushed before use.A new powerflex pta bc was used to complete the procedure.The lesion had moderate calcification.The patient is healthy.
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Complaint conclusion: a powerflex pro percutaneous transluminal angioplasty (pta) balloon catheter (bc) was put into the patient, but the balloon would not reach the desired pressure after two attempts.There was a small hole at the rear end of the balloon that was noticed when it was removed.There was no reported patient injury.The lesion had moderate calcification.The powerflex pro pta bc was flushed before use.A new powerflex pta bc was used to complete the procedure.The patient is healthy.One device was returned for analysis.One non-sterile powerflex pro 7mm x 10cm x 80cm balloon catheter was returned.Per visual analysis the catheter was coiled inside a plastic bag.The balloon had been previously inflated, otherwise no anomalies were observed.Functional analysis was performed, an inflator/deflator device filled with water was attached to the inflation lumen and pressure was applied.However, a leakage was observed in the proximal section of the balloon area.Sem analysis revealed that the balloon leakage was caused by a rupture on the balloon surface.The external surface of the balloon presented evidence of micro tears and scratch marks adjacent to the balloon rupture.This type of damage is commonly caused during the interaction of the balloon material with a sharp object or mechanical damage.The internal surface of the balloon did not present damages on the surrounding areas of the rupture.No other anomalies were found during the sem analysis.A product history record (phr) review of lot 17539094 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿balloon leakage-during positive pressure ¿ was confirmed through analysis of the returned device.However, the exact cause could not be determined.Vessel characteristics of moderate calcification may have contributed to the event reported, as calcification may cause damage to balloon material.Sem analysis of the balloon revealed the presence of micro tears and scratch marks adjacent to the balloon rupture.This type of damage can occur when attempting to cross a calcified lesion.According to the safety information in the instructions for use ¿if resistance is met during manipulation, determine the cause of the resistance before proceeding.Balloon pressure should not exceed the rated burst pressure.The rated burst pressure is based on the results of in vitro testing.At least 99.9% of the balloons (with a 95% confidence), will not burst at or below their rated burst pressure.Use of a pressure monitoring device is recommended to prevent over pressurization.Use only the recommended balloon inflation medium.Never use air or any gaseous medium to inflate the balloon.Prior to angioplasty, the catheter should be examined to verify functionality and ensure that its size and shape are suitable for the specific procedure for which it is to be used.¿ neither the phr review nor the product analysis suggests that the event experienced by the customer could be related to the manufacturing process; therefore, no corrective/preventive action will be taken at this time.
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