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A visual inspection, functional testing and detailed analysis were performed on the returned device.The reported compliant of unexpected shutdown was confirmed.The reported complaints of pseudoaneurysm and related medical intervention were not able to be confirmed due to the operational context of the reported issue.Production record and corrective and preventative actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a query of the complaint handling database for the reported lot revealed there is no indication of a lot specific issue.Based on the reported information and the observations from the returned analysis, a definitive cause for the reported unexpected shutdown pseudoaneurysm and related medical intervention could not be determined.Detailed analysis of the orbital atherectomy device (oad) confirmed that the device experienced a stall event during the second treatment spin after 17 seconds.It is unknown if the device stall event and the patient injury are related.Analysis also found the crown to be dislocated from the solder bond location but still engaged on the driveshaft.It is possible that the crown experienced high friction during spinning which allowed solder to reflow and crown displacement.This is consistent with complaint details which state that the oad was used in a tight area of heavily calcified and heavily tortuous proximal segment of the anterior tibial (at) artery; although, the exact cause of the separation is unknown.Based on the results of the complaint investigation there is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.Updated fields: d9, g3, g6, h2, h3, h6 (component code, type of investigation, investigation findings, investigation conclusions).Corrected fields: b5 - updated verbiage.
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