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As reported, the marker bands of two 5f x 65cm supertorque catheters move along the shaft of the catheter and were not attached anymore.There was no reported patient injury.The target lesion was aorto-iliac aneurism and severely calcified.Vessel tortuosity was also high, and the percentage of stenosis was under 50%.The device was not used for a chronic total occlusion.The device was dislodged inside the patient at the second use of the "kt".The device was prepped properly/normally, stored, and handled per the instructions for use (ifu).There were no anomalies noted to the device when it was taken out of the packaging.The catheter was not re-shaped by the user.There were no kinks or other damages noted prior to inserting the product into the patient.There was no unusual force used at any time during the procedure.There are no procedural films available.The product will not be returned for inspection.Other additional procedural details were requested but were unknown.
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As reported, the marker bands of two 5f x 65cm supertorque catheters move along the shaft of the catheter and were not attached anymore.There was no reported patient injury.The target lesion was aorto-iliac aneurism and severely calcified.Vessel tortuosity was also high, and the percentage of stenosis was under 50%.The device was not used for a chronic total occlusion.The device was dislodged inside the patient at the second use of the "kt".The device was prepped properly/normally, stored, and handled per the instructions for use (ifu).There were no anomalies noted to the device when it was taken out of the packaging.The catheter was not re-shaped by the user.There were no kinks or other damages noted prior to inserting the product into the patient.There was no unusual force used at any time during the procedure.There are no procedural films available.Other additional procedural details were requested but were unknown.The devices were not returned for analysis.For the first device, a product history record (phr) review of lot 17736511 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.For the second device, as the sterile lot number is unknown, phr reviews could not be performed.Without the return of the devices for analysis, the reported customer event ¿marker band (supertorque) dislodged¿ could not be confirmed and the exact root cause could not be determined.Vessel characteristics (severe calcification and high vessel tortuosity), or procedural/handling factors may have contributed to the reported events.According to the instructions for use (ifu), although not intended as a mitigation, ¿failure to observe these instructions may result in damage, breakage, or separation of the catheter or the markerbands, which may necessitate additional intervention.Manipulation of the catheter under excessive friction due to interaction with other devices or while trapped in the vasculature, can lead to stretching or elongation of the catheter.Stretching or elongation of the catheter during endovascular procedures could result in the marker bands moving along the catheter.In extreme cases, marker bands may come off the catheter and dislodge into the vascular system.Dislodgement of the marker bands into the vascular system can result in additional intervention, embolism, thrombosis or other vascular complications.Avoid excessive tension on the device during manipulation.Extreme care to avoid stretching or elongation must be exercised during manipulation and withdrawal.¿ neither the phr review nor the information available suggests that the reported failures could be related to the manufacturing process of the unit.Therefore, no corrective or preventative actions will be taken at this time.This is one of 2 products involved with the reported event and the associated manufacturer report number are 9616099-2019-03377.
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