(b)(4).Device analysis results: the oad was received at csi for analysis.No damage was observed on the handle assembly.There was some adhered material observed on the driveshaft and crown.Examination of the areas of adhered material did not reveal any damage that would have contributed to the accumulations.The morphology and exact root cause of the accumulation is unknown.The biological material accumulation likely contributed to the device becoming stuck on the guide wire; however, the root cause remains undetermined.The guidewire was also received and was engaged in the oad.No damage was observed on the guide wire.At the conclusion of the device analysis investigation, the report that the oad became stuck on the wire was confirmed.However, the reported perforation could not be confirmed through analysis.The device history record for this oad lot number has been reviewed.No issues or discrepancies were noted during this review that would have contributed to the reported event.The device met material, assembly, and quality control requirements.Csi id: (b)(4).
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A stealth peripheral orbital atherectomy device (oad) was used to treat a chronic total occlusion in the anterior tibial artery.Access was obtained in the right common femoral artery, and the approach was contralateral.One treatment was performed on low speed, and the oad became stuck on the guide wire.The oad and wire were removed, and a perforation occurred.The perforation was resolved with angioplasty.The patient was stable following the procedure.
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