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As reported, during preparation of the outback elite re-entry catheter, the device was flushed, and function was checked.At that moment, the needle has been deployed and came out of the shaft pointing into the wrong direction and it was not possible to retract it anymore.The lever on the handle is moveable but has no more function.The needle was stuck.The device was not inserted into the vessel/patient.There was no reported injury to the patient.The device will be returned for evaluation.The product evaluation revealed that the cannula/needle of the outback elite re-entry catheter is fractured/separated.
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As reported, during preparation of the outback elite re-entry catheter, the device was flushed, and function was checked.At that moment, the needle has been deployed and came out of the shaft pointing into the wrong direction and it was not possible to retract it anymore.The lever on the handle is moveable but has no more function.The needle was stuck.The device was not inserted into the vessel/patient.There was no reported injury to the patient.The product was returned for analysis.One non-sterile outback elite 80cm re-entry unit was received for analysis inside a plastic bag.Per visual analysis, the cannula needle was received deployed.A kink/bent was observed on the shaft located approximately at 15.4 cm from distal tip.No other visible anomalies were observed during the analysis.Per functional analysis, a lab sample syringe filled with water was attached to the flush and wire ports located on the handle of the unit and was flushed with difficulties.Next, a lab sample.014¿ guide wire was inserted first into the unit cannula wire port and then by the distal tip and, in both cases, the wire stopped at the height of the kink/bent found.Then, the cannula was unsuccessfully advanced and retracted via distal movement of the deployment slider.Due to the unsuccessful advancement and retraction of the cannula, an x-ray analysis was performed, and the cannula was found fractured/separated at the heigh where the kink/bent condition was found.No other anomalies were noted during x-ray analysis.Due the fractured/separated cannula, a sem analysis was performed, and results showed that the fractured/separated area of the cannula of the unit presented evidence of plastic deformation on the damaged area of the unit.The plastic deformations on metallic materials are commonly associated with fractures/separations caused by material tensile overload.Therefore, it is assumed that the material of the cannula was induced to a tensile force that exceeded the material yield strength prior to the fracture/separation.No other anomalies were observed during sem analysis.A product history record (phr) review of lot 18125756 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.Reported ¿cto catheter system ¿ prepping difficulty - unable to retract needle¿, ¿cannula/needle (outback only) ¿ fractured/separated¿, and ¿cannula/needle (outback only) ¿ kinked/bent¿ were confirmed during analysis of the returned device.The exact cause of the reported events could not be conclusively determined.Procedural and/or handling factors may have contributed to the reported events, as evidence by the sem analysis.Neither the product history review nor the analysis results suggest that the failure experienced by the customer could be related to the manufacturing process.No actions will be taken.Neither the product analysis nor the phr review suggests that the failures experienced by the customer could be related to the design or manufacturing process of the unit.Therefore, no corrective/preventative actions will be taken at this time.
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