As reported, the tip of the catheter broke off in a non-cordis 6f sheath introducer approximately 1 inch from the distal end.The sheath and separated tip were removed as a unit.The procedure was completed by using a new sheath, wire and catheter and started over.There was no reported patient injury.The guidewire used was a 0.035" 180cm non-cordis glidewire.The lesion was at least 50% occluded and with moderate calcification.There were no anomalies noted when the device was removed from the package or during prep.The procedure being performed was an aortagram, angioplasty.There was no resistance met while advancing the device and no excessive torquing required.There was no resistance met while advancing the device over the guidewire.Resistance was met while withdrawing the device and excessive force was used to withdraw the device.The physician had to remove sheath and wire as well.A non-sterile cath tempo 4f uf 65cm 5sh diagnostic catheter along with an unknown catheter sheath was received for analysis coiled inside a plastic bag.The brite tip/distal tip of catheter was received detached/ separated at 56.3 cm from id band.The sheath was received kinked at 3.8 cm from hub and distal tip frayed/prolapsed damage.Per visual analysis, the received separated tip of the diagnostic catheter was observed twisted/damaged (the separated edges on received separated unit look as if tremendous force was applied until break/separation occurred on distal tip).Also, the distal section of the diagnostic catheter unit (where separation occurred) was inspected under vision system and evidence of elongations was observed.Elongations found suggest that the catheter was induced to an excess of torsion/ force applied that could cause the damage found.Id and od of catheter were measured near the separated area and results were found within specifications.Per microscopic analysis, evidence of transfer of material between separated parts could be observed.Also, external edge surfaces at separation area was observed and it showed clear evidence of elongations at separation.Elongations characteristics present evidence of an application of a tension force that induced the cannula body separation.A device history record (dhr) review of lot 17631469 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿brite tip/distal tip ¿ catheters-separated¿ was confirmed through analysis of the returned device.However, the exact cause of the separated/elongated conditions found on the unit could not be conclusively determined during the analysis.Based on the information available for review, procedural/handling factors may have contributed to the distal tip catheter separation reported as evidenced by the twisted and elongated damage noted at the separation site with transfer of material observed.According to the instructions for use (ifu), ¿treat all 4f (1.35 mm) catheters and smaller french sizes with ultimate care.The performance of these products may be impaired if not properly and cautiously handled during unpacking and preparation.¿ 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.
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