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The balloon of the 7f 15 x 40 x 110cm maxi ld percutaneous transluminal angioplasty (pta) dilatation catheter ruptured during the second inflation at four atmospheres (atm).There was no reported patient injury.The lesion was the left pulmonary artery with stenosis.The device was used for a 70% stenosed lesion with little calcification and vessel tortuosity.The device was stored, handled and prepped normally (i.E.Maintain negative pressure) per the instructions for use (ifu).There was no difficulty removing the product from the hoop, the stylet or any of the sterile packaging components.There were no kinks or other damages noted prior to inserting the product into the patient.There was a little resistance/friction felt while inserting the balloon through the rotating hemostatic valve, but it was not strong.The catheter was never in an acute bend.The maxi ld was intended to be used for three sets of 30-second inflations at four atmospheres (atm) and was used to implant a stent.The same indeflator was successfully used with other devices.There was no unusual force used at any time during the procedure.The balloon catheter was removed easily and intact (in one piece) from the patient.The blood vessels had inflated to some extent, so the procedure was continued.After that, the procedure was completed without any problems.Additional procedural details were requested but were unknown.The product was not returned for analysis.A product history record (phr) review of lot 82157594 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.With the limited amount of information available and without the return of the product or films of the procedure it is diffcult to draw a clinical conclusion between the device and the event.However, vessel characteristics of 70% stenosis may have contributed to the reported event.According to the safety information in the instructions for use ¿note: the rated burst pressure is printed on the package label.In vitro testing has shown that with 95% confidence, 99.9% of the balloons will not burst at or below the rated pressure.Balloons should not be inflated in excess of the rated burst pressure.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.Carefully advance the catheter through a sheath or through the percutaneous entry site.Note: gentle counterclockwise rotation of the balloon may ease introduction through the sheath or percutaneous entry site.Note: perform all further catheter manipulations under fluoroscopy.Carefully advance the catheter to the selected site.Caution: if strong resistance is met during advancement or withdrawal of the catheter, discontinue movement and determine the cause of resistance before proceeding.If the cause of resistance cannot be determined, withdraw the entire system.¿ neither the phr nor the information available suggests a design or manufacturing related cause for the reported event.Therefore, no corrective or preventive action will be taken at this time.
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As reported, the balloon of the 7f 15 x 40 110cm maxi ld percutaneous transluminal angioplasty (pta) dilatation catheter ruptured during the second inflation.There was no reported patient injury.The device was stored, handled and prepped per the instructions for use (ifu).There is little calcification of the lesion and vessel tortuosity.There is 70% stenosis.The device was used for a stenosis.There was no difficulty removing the product from the hoop or while removing the stylet or any of the sterile packaging components.The device was prepped normally (i.E.Maintain negative pressure).There were no kinks or other damages noted prior to inserting the product into the patient.There was a little resistance/friction felt while inserting the balloon through the rotating hemostatic valve, but it was not strong.The catheter was never in an acute bend.The maxi ld was intended to be used for three sets of 30-second inflations at 4 atmosphere (atm).The device was used to implant a stent.The lesion was the left pulmonary artery with stenosis.The balloon burst at 4 atm.The same indeflator was successfully used with other devices.There was no unusual force used at any time during the procedure.The balloon catheter was removed easily and intact (in one piece) from the patient.The blood vessels had inflated to some extent, so the procedure was continued.After that, the procedure was completed without any problems.The device was discarded in the hospital and will not be returned for evaluation.Other additional procedural details were requested but were unknown.
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