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As reported, the needle of an outback elite 120cm re-entry catheter would not retract correctly after it was deployed.There was no reported patient injury.The device was used in the patient for the re-entry to the true lumen on the superficial femoral artery (sfa).The needle was able to be ¿flex¿ back into the catheter in order to remove the device from the patient.Other procedural details were requested but are unknown, unavailable, not answered, or not applicable.The device will be returned for evaluation.
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After further review of additional information received the following sections have been updated accordingly: g3, g6, h1, h2, h3 and h6.As reported, the needle of an outback elite 120cm re-entry catheter would not retract correctly after it was deployed.There was no reported patient injury.The device was used in the patient for the re-entry to the true lumen on the superficial femoral artery (sfa).The needle was able to be ¿flex¿ back into the catheter in order to remove the device from the patient.A non-sterile unit of ¿outback elite 120cm re-entry¿ was received for analysis.During visual inspection, a kinked/bent condition was observed approximately 16 cm from the distal tip.The unit was returned with the cannula needle fully deployed.The handle slider was set at the retracted position.For functional analysis, the handle slider was actuated to retract the needle cannula back, but it did not retract as expected.The slider functionally was tested actuating it back and forward and no anomalies were observed, however the needle cannula remained deployed.The returned device was analyzed using an x ray-machine focusing where the shaft is kinked.The resulting image showed a separation of the cannula.The separated condition is located at the distal side of the marker band.Additionally, the damages were noted on the same portion of the body with the kink noted on the external surface and the separation noted internally.The reported ¿cannula/needle (outback only) ~ retraction difficulty¿ and ¿cannula/needle (outback only) - fractured/separated¿ were confirmed.The cannula needle could not be retracted or deployed due to the cannula separation located at the distal side of the marker band.The exact cause of this condition could not be conclusively determined during the analysis.However, excessive rotation or bending of the catheter may have caused the kink and underlying cannula/needle separation.Users are trained to inspect for signs of damage prior to and during use.Any product with damage is not to be used.Information for safety is provided in the products labeling with the intent to make the user aware of the risks.According to the instructions for use (ifu), although not intended as a mitigation of risk, ¿if strong resistance is felt during catheter manipulation/delivery, determine the cause of the resistance before proceeding further.Consider using a 3¿4 mm balloon at low atm to dilate points of resistance, as needed, along delivery track.If the cause cannot be determined, withdraw the outback® elite re-entry catheter.Excessive rotation, bending or kinking of the outback® elite re-entry catheter may affect its performance.Withdraw the outback® elite re entry catheter if it becomes excessively kinked.¿ based on the available information, there is no indication that the event is related to the device design or manufacturing process.Therefore, no preventative or corrective actions will be taken at this time.
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