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A visual inspection, functional testing, dimensional analysis was performed on the returned device.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, the investigation determined that the reported issue appears to be related to circumstances of the procedure.In this case, based on the reported information, it may be possible that the calcification induced a constriction in the shaft sheath during the insertion process or during the activation, causing the resistance with the thumbwheel, and the inability to release the stent from the delivery system.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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