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As reported, a powerflex pro percutaneous transluminal angioplasty (pta) balloon catheter was delivered to the lesion, however, it ruptured within its nominal pressure.No patient injury was reported.This was a shunt pta case.The lesion was the anatomic part with stenosis.A non-cordis sheath and non-cordis guidewire were used.After the powerlfex pro balloon ruptured, it was removed from the patient.The procedure was completed with a new unknown balloon catheter.The patient had an infectious disease.
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Section b5 description of event: as reported, a powerflex pro percutaneous transluminal angioplasty (pta) balloon catheter (bc) was delivered to the lesion, however, it ruptured within its nominal pressure.No patient injury was reported.This was a shunt pta case.The target lesion was the arteriovenous anastomosis.There was no calcification, the tortuosity was not severe, and the angulation was from twenty to thirty degrees.The percentage of stenosis was ninety percent and the device was not used for a chronic total occlusion (cto).The device was prepped per the instructions for use (ifu), and it prepped normally.There was no difficulty removing the product from the hoop, no difficulty removing the protective balloon cover, and no difficulty removing the stylet or any of the sterile packaging components.The same indeflator used successfully with other devices.There were no kinks or other damages noted prior to inserting the product into the patient.The device was not inserted through a stopcock instead of a hemostatic valve.A non-cordis sheath and non-cordis guidewire were used.There was slight resistance felt when it crossed the stenosis part but it was nothing to get worried about.The bc did not kink while being used.After the powerlfex pro balloon ruptured, it was removed easily and intact (in one piece) from the patient.The procedure was completed with a new unknown bc.The device will not be returned because the patient had an infectious disease.A powerflex pro percutaneous transluminal angioplasty (pta) balloon catheter (bc) was delivered to the lesion; however, it ruptured within its nominal pressure.No patient injury was reported.This was a shunt pta case.The target lesion was the arteriovenous anastomosis.There was no calcification, the tortuosity was not severe, and the angulation was from twenty to thirty degrees.The percentage of stenosis was ninety percent and the device was not used for a chronic total occlusion (cto).The device was prepped per the instructions for use (ifu), and it prepped normally.There was no difficulty removing the product from the hoop, no difficulty removing the protective balloon cover, and no difficulty removing the stylet or any of the sterile packaging components.The same indeflator was used successfully with other devices.There were no kinks or other damages noted prior to inserting the product into the patient.The device was not inserted through a stopcock instead of a hemostatic valve.A non-cordis sheath and non-cordis guidewire were used.There was slight resistance felt when it crossed the stenosed part, but it was nothing to get worried about.The bc did not kink while being used.After the powerflex pro balloon ruptured, it was removed easily and intact (in one piece) from the patient.The procedure was completed with a new unknown bc.The product was not returned for analysis.A product history record (phr) review of lot 82156674 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿balloon burst-at/below rbp¿ could not be confirmed as the device was not returned for analysis.The exact cause could not be determined.Vessel characteristics such as the mentioned, ninety percent stenosis may have contributed to the reported event.It was also noted that slight resistance was felt as the bc crossed the stenosed vessel, during which there may have been inadvertent damage caused to balloon material.However, the procedure performed was a shunt (pta) case.Arteriovenous shunts are often scarred and fibrous in nature and are therefore often resistant to balloon expansion increasing the likelihood of damage to the balloon.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 nor the information available suggests a design or manufacturing related cause for the reported event; therefore, no corrective/preventive action will be taken at this time.
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