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The device was not returned for analysis.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 information received, the investigation determined that the reported difficulty advancing, and partial deployment appears to be related to procedural circumstances.It is likely that anatomical conditions contributed to the reported difficulty advancing.Additionally, it is likely that the distal sheath of the delivery system was bent or compromised while advancing against resistance preventing the ratchet from engaging the stent properly resulting in partial deployment.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.
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