The hospital reported that during an endoscopic vessel harvesting procedure, vasoview hemopro 2 "working pieces broke".The jaws of the harvesting tool came out to close to the cring and when jaws were opened to ligate a branch, it also caught the c-ring and cut it in half.There were no pieces that fell into patient.A new device was opened to complete the procedure with a minimal procedural delay.There was no patient harm.
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Trackwise#: (b)(4).The device was returned to the factory for evaluation on 04/08/2024.An investigation was conducted on 04/10/2024.A visual inspection was conducted.Signs of clinical use and evidence of blood was observed on the intact cannula handle.The c-ring was observed to be cut in half longitudinally with signs of melting near the flanking curved areas.The scope wash tubing and retention rib remained attached to the cannula.The scope wash tubing and the c-ring remained attached to the cannula due the presence of a retention rib.The heater wire was observed to be flexed away from the hot jaw of the harvesting device.It remained attached at the base and tip of the hot jaw.There were no other visual defects observed on the intact clear silicone insulation of both the hot and cold jaws.No other visual defects were observed.Based on the returned condition of the device as well as the evaluation results, the reported failure "break; c-ring" was confirmed, as well as the analyzed failure "material twisted/bent wire" was observed.Specific actions for the reported failure mode are being maintained and documented under maquet's corrective and preventive action (capa) system.The lot # 3000371260 history record review was completed.There were no ncmrs, rework, or deviations documented for the reported lot number.Based on the dhr/lhr review results, it was determined that there is no relation between the batch manufacturing process and the reported failure.
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