Lot and serial number of the disposable device not provided by the complainant, therefore, the expiration date is not known.Serial number of the radio frequency controller not provided by the complainant.The device is not being returned therefore, a failure analysis of the complaint device cannot be completed.Lot number of the disposable device not provided by the complainant, therefore, the manufacturer date is not known.Device history record (dhr) review was unable to be conducted for the disposable device as the lot number was not provided by the complainant.If additional relevant info is received, a supplemental medwatch will be filed.(b)(4).
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