Complaint conclusion: during use, a tempo catheter (5f ber ii 100cm) broke into two pieces inside the patient¿s heavily calcified popliteal artery.There was no reported patient injury.The catheter was retrieved with a snare.No other information was provided.The device was returned for analysis.A non-sterile cath tempo 5f ber ii 100cm was received inside a plastic bag.Per visual inspection, a separation was noted at 46.8 cm from the distal end.Per dimensional analysis, the catheter¿s (inner diameter) id and (outer diameter) od were found within specification.Per sem results, the catheter presented with twisted conditions and a separation at 46.8 cm from the distal end.Distal and proximal separated sections presented with evidence of twisted conditions and elongations.The separated wires showed plastic deformation that results in a surface type of cup and cone and also presented with ductile dimples.No other anomalies were observed during sem analysis.A review of the manufacturing documentation associated with lot 17690641 was performed and no issues were noted that were related to the reported event.The event reported by the customer as ¿catheter (body/shaft) - separated¿ was confirmed.The exact cause of the damage could not be conclusively determined during the analysis.Dimensional analysis results were found within specification and do not suggest that this damage could be related to the manufacturing process.Sem analysis suggests that the device was induced to an excessive application of tension and torsion force that resulted in the separation.Procedural and handling factors, as well as vessel characteristics (heavily calcified) may have contributed to this event.According to the instructions for use (ifu), which is not intended as a mitigation ¿torqueing the guiding catheter excessively while kinked may cause damage which could result in possible separation along the catheter shaft.Should the guiding catheter shaft become severely kinked, withdraw the entire system (guiding catheter, guidewire and catheter sheath introducer.¿ neither the phr review nor the product analysis suggests that the reported failures could be related to the manufacturing process of the device.Therefore, no corrective or preventative actions will be taken at this time.
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