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A 3mm x 4 cm 90cm saber percutaneous transluminal angioplasty (pta) catheter ruptured at eight atmospheres (atm) after a guidewire crossed the lesion.Additional information indicated that there was difficulty crossing the lesion.This was an endovascular therapy (evt) case.The lesion was the superficial femoral artery which had chronic total occlusion (cto).The lesion was severely calcified.There was no vessel tortuosity.There was no reported patient injury.The device was stored and handled per the instructions for use (ifu).There was no difficulty removing the product from the hoop, the protective balloon cover, 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.The device was prepped normally and per the ifu.A non-cordis inflation device was used.The same indeflator was used successfully with other devices.There was no resistance/friction while inserting the balloon through the rotating hemostatic valve or through the guide catheter.There was no difficulty advancing the balloon catheter through the vessel.There was no unusual force used at any time during the procedure.The device was replaced with another same sized balloon catheter and the procedure was completed.The products were removed intact (in one piece) from the patient.The device was not returned for analysis as the device was discarded.A product history record (phr) review of lot 17635450 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 severe calcification, may have contributed to the reported event.However, without the return of the device for analysis it is difficult to draw a clinical conclusion between the device and the event reported.According to the warnings in the safety information in the instructions for use ¿prior to angioplasty, the catheter should be examined to verify functionality and integrity, and ensure that its size and shape are suitable for the specific procedure for which it is to be used.Do not use if product damage is suspected or evident.To reduce the potential for vessel damage or the risk of dislodgement of particles it is very important that the inflated diameter of the balloon should approximate the diameter of the vessel just proximal and distal to the lesion.The balloon dimensions are printed on the product label.The compliance table incorporated with the product shows how balloon diameter increases as pressure increases.Do not exceed the rated burst pressure recommended on the label.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.Pressure in excess of the rated burst pressure can cause balloon rupture and potential inability to withdraw the catheter through the introducer sheath.Balloon rupture can cause vessel damage and the need for additional intervention.Use only the recommended balloon inflation medium (a 50/50 mixture by volume of contrast medium and normal saline).Never use air or any gaseous medium.If resistance is felt upon removal, then the balloon, guidewire and the sheath should be removed together as a unit, particularly if balloon rupture or leakage is known or suspected.Proper functioning of the catheter depends on its integrity.Care should be used when handling the catheter.Damage may result from kinking, stretching, or forceful wiping of the catheter.Forceful handling can result in catheter separation and the subsequent need to use a snare or other medical interventional techniques to retrieve the pieces.Always verify integrity of the catheter after removal.¿ 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 3mm 4cm 90 saber percutaneous transluminal angioplasty (pta) ruptured at eight atmospheres (8atm) after a guidewire crossed the lesion.The products were therefore removed intact (in one piece) from the patient and the saber was replaced with another balloon catheter of the same size to continue the procedure.There was no reported patient injury.This was an endovascular therapy (evt) case.The lesion was the superficial femoral artery (sfa), which was severely calcified, had no vessel tortuosity and was a chronic total occlusion (cto).The device was stored and handled per the instructions for use (ifu).There were no difficulties removing the stylet or any of the sterile packaging components, the product from the hoop, or the protective balloon cover.There were no kinks or other damages noted prior to inserting the product into the patient.The device was prepped normally and per the ifu.A non-cordis inflation device was used.The same indeflator was used successfully with other devices.There was no resistance/friction while inserting the balloon through the rotating hemostatic valve.There was no resistance/friction while inserting the balloon through the guide catheter.There was no difficulty advancing the balloon catheter through the vessel but there was some difficulty crossing the lesion.There was no unusual force used at any time during the procedure.The device will not be returned for analysis as it was discarded.
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