Expiration date - unknown due to unknown lot number.Udi - unknown due to unknown lot number.Implanted date: device was not implanted.Explanted date: device was not explanted.Establishment name: unknown.Establishment address - unknown.Occupation - unknown.Device manufacture date - unknown due to unknown lot number.The actual device was not returned, therefore an evaluation of the actual device was unable to be conducted.The production lot number was not provided by the user facility, which prevented a meaningful review of the device history record.With no device return, the exact cause of the reported event cannot be definitively determined based on the available information.[mw5080638].
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