Additional information was received and the device was received with the distal tip separated in two.(b)(4).During preparation, it was reported that the tip of the saber balloon catheter was fractured.Additional information was received and the device was received with the distal tip separated in two.The saber balloon was replaced with a new unknown balloon catheter and the procedure was successfully completed.There was no reported patient injury.This was a shunt percutaneous transluminal angioplasty (pta).The lesion was the shunt.The patient¿s vessel level of tortuosity was unknown.The lesion was not calcified.The rate of stenosis was unknown.One non-sterile unit of saber 4mm10cm 90 was received coiled inside a plastic.Per visual analysis the balloon was previously inflated/deflated, the distal tip of the balloon device was found separated and the tip separated section was received for analysis in a small pouch.No damages were noted in the device.The separated tip areas were inspected under microscope and it was noticed that the separated area presented evidence of elongations and frayed edges.The elongations and frayed edges observed suggest that the device was induced to stretching/pulling events that exceeds the material yield strength prior to the separation.A device history record (dhr) review of lot 17220091 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿distal tip cracked during prep,¿ also referred to as fractured, was not confirmed since no cracks or fractures were found on the received device.However, a tip separation was observed with the tip received for analysis.The root cause of the saber tip separation found could not be conclusively determined during the analysis.Based on the limited information available for review, concomitant device factors and handling factors likely contributed to the separated tip reported as evidenced by the elongations and frayed edges found during analysis.According to the instructions for use, which is not intended as a mitigation, ¿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.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 product analysis nor the dhr review suggests that the failures reported could be related to the manufacturing process.Therefore, no corrective/preventive actions will be taken at this time.
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