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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.In this case, it is possible that the cap seal was not fully tightened, therefore resulting in the reported leak difficulties.However, the device was not returned for analysis; therefore, it cannot be confirmed.The investigation determined a conclusive cause for the reported difficulty cannot be determined.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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