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Device serial number/lot number is unknown, no product information has been provided to date.No lot or serial number was provided; therefore, device history record review could not be performed.No product sample was received; therefore, visual and functional testing could not be performed.The valve is not unique to the customized 3.5 mm devices.It is used on all standard and customized devices.There have been no changes to the valve or to pilot balloon, which holds the valve.There have been no other complaints alleging the valves are falling out.No corrective actions are planned at this time.If the product is returned, the manufacturer will reopen this complaint for further investigation.
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