Complaint conclusion: as reported, an infiniti catheter tip appeared to show signs of shearing once the wire was passed through it and the catheter was being flushed.There was no patient injury as the device was not clinically used.No excessive force was used at any time.The procedure was completed with a same catheter from a different lot.Attempts to gather further information were unsuccessful.One non-sterile unit of infiniti cath f5 inf jr 4 100cm was received coiled inside a plastic bag.Per visual analysis, kinked conditions were found on catheter body at 18.5 cm, 25 cm, 30cm, 39 cm, 48 cm and 58.35 cm.From catheter distal end.Also, the brite tip was received damaged.No other issues were found.The catheter od and id were measured near the kinked condition and were found within specification.The sample was analyzed under the vision system and was also sent to sem station.Sem results showed that the tip presented evidence of elongations.These deformations found on the tip of the sample could be related to a deformation induced by an object during the plastic state of the tip.No other anomalies were found during sem analysis.Dsc and tga analyses were carried out over a tip from a diagnostic catheter, which was received with noticeable damage (presumably melted).Dsc analysis revealed that the damaged tip has a thermoplastic behavior which means that it is capable to recover its properties after heat and reheat.In addition, it was demonstrated that it requires approximately 160°c to induce a phase change in the material from solid to rubbery state.Tip testing was performed and was unable to reproduce the event.Finally, tga test was executed in order to evaluate the thermal stability of the material revealed that the sheared tip has a comparable performance to that observed in the control sample.No change in the material performance was observable in the white brite tip received with damage.Review of lot 17065842 revealed no anomalies during the manufacturing and inspection processes that can be associated with the reported complaint.The reported event by the customer of ¿brite tip/distal tip / frayed/split/torn (cardiovascular)¿ was confirmed as the condition as the product was received.The cause of the events experienced by the customer, as well as, the kink conditions found could not be conclusively determined.Clinical factors contributing to the damaged tip could not be determined.According to the product instructions for use (ifu), users are cautioned to prevent damage to the catheter tip during removal from the package, to grasp the hub and withdraw the catheter carefully.Neither the dhr nor the product analysis suggests that the reported event could be related to the design manufacturing process.Therefore, no corrective and preventive actions will be taken.
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