It was reported that the saber balloon catheter was inserted, however, the balloon catheter was caught by the calcification and could not cross the lesion.Once the saber balloon was removed from the patient, it was confirmed that the tip was fractured.The saber balloon was replaced with another unknown balloon and the procedure was completed successfully.There was no patient injury.The target lesion was the iliac artery.The patient¿s vessel level of tortuosity was unknown.The lesion was calcified.The rate of stenosis was unknown.The product was clinically used and will be returned for analysis.
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It was reported that during use, the saber rx8mm4cm155 balloon catheter failed to cross the target lesion, was cracked in-patient and the shaft burst.The saber was inserted; however, the balloon catheter was caught by the calcification in the vessel/target lesion and could not cross the lesion.Once the saber balloon was removed from the patient, it was confirmed that the tip was fractured.The saber balloon was replaced with another unknown balloon and the procedure was completed successfully.There was no patient injury.The target lesion was the iliac artery.The patient¿s vessel level of tortuosity was moderate.The lesion was moderately calcified.The rate of stenosis was ninety percent (90%).No other information was provided.Additional information was received from fal and the tip was partially separated.One non-sterile unit of saber rx8mm4cm155 was received coiled inside a plastic.Per visual analysis the balloon was previously inflated/deflated, the distal tip of the balloon device was received partially separated; also, a 29cm rupture was observed on the outer body of the guide wire lumen section and an 8cm section of the distal core wire was exposed.Blood residuals were observed in the balloon and in the inflation section, this might be secondary to the rupture observed on the outer body of the wire lumen section.No other damages were noted in the device.The rupture observed on the outer body of the guide wire lumen section was examined under microscope and it was observed that the edges presented plastic deformation and stretched conditions; thus, these indicate that the outer body material was submitted to a pulling\stretched force before it got ruptured.The separated tip was inspected under microscope and it was noticed that the separated edges present evidence of elongation.Unit was sent to sem analysis to identify the potential cause of the tip separated the following results: ¿results showed that the separated tip presented evidence of plastic deformation such as elongations and frayed edges.These characteristics suggest that the device was induced to stretching/pulling events that exceeds the material yield strength prior to the separation.No other issues were noted during sem analysis¿.Review of lot 17449264 revealed no anomalies during the manufacturing and inspection processes.The complaint reported as ¿distal tip - cracked - in-patient¿ was confirmed as the product was received.The root cause of the saber tip fractured\separated as well as the rupture observed on the outer body of the guide wire lumen section could not be conclusively determined.However, the failure ¿body/shaft~ burst reported by the customer was not confirmed however, the outer body ruptured was noted during analysis, the exact cause of this failure could not be conclusively determined.However, neither dhr review results nor product analysis results suggests that they may be related to the manufacturing process; however, sem results suggested that procedural\handling factors might have contributed to both events.Therefore, no corrective or preventive actions will be taken at this time.Per the instructions for use ¿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.¿ based on the information available for review, vessel characteristics (90% stenosis, moderately calcified and tortuous) may have contributed to the damage to the device as noted during analysis.Neither the dhr 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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