Advanced Bionics (AB), a global leader in developing advanced cochlear implant systems, announced today that it has begun notifying regulatory authorities that it will voluntarily initiate a field corrective action related to the initial version of HiRes Ultra and Ultra 30
cochlear implant devices

http://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/voluntary-field-correc-tive-action-hires-ultra-and-ultra-3d