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. Author manuscript; available in PMC: 2016 Jun 25.
Published in final edited form as: Anat Rec (Hoboken). 2012 Oct 8;295(11):1967–1980. doi: 10.1002/ar.22580

Fig 2.

Fig 2

The 3M Cochlear implant system developed by House in 1973. Left image) The internal and external portions of the device, Right image) External portion of the device placed on the patient head.(Courtesy of the American Academy of Otolaryngology-Head and Neck Surgery Foundation)