March 2009
Autodesk has named Cochlear Bone Anchored Solutions, a division of Cochlear Ltd (Cochlear), Autodesk Inventor of the Month for February 2009, for the successful development of a digital prototype of the Baha bone conduction hearing solution using the Inventor software.
The Baha system uses direct bone conduction to transfer sound to the cochlea, the auditory center of the inner ear. This method has the advantage of bypassing the outer and middle ear–which might be blocked, damaged or otherwise impaired–when transmitting sound vibrations to the inner ear to give individuals with hearing loss clearer sound in everyday situations like phone calls and group meetings.
"To design the bone conduction implant and the external sound processor that constitute the Baha system, we need to be able to precisely design, engineer and manufacture parts on the scale of one hundred-thousandths of a millimeter," said Daniel Radberg, senior design engineer and CAD manager at Cochlear BAS, responsible for the Baha product line.
"Autodesk Inventor is invaluable in helping us achieve that precision by giving us detailed 3D views of our products before we've built anything."
Traditional hearing aids use air conduction to transmit sound through the ear canal. People with a damaged middle ear, however, cannot benefit from this type of device. The Baha system, by contrast, uses a titanium implant in the skull bone behind the ear. An external sound processor snaps onto the implant, transmitting sound vibrations from the outside world directly to the cochlea, bypassing damaged or problematic areas.
This direct transmission route provides several important advantages when it comes to sound quality. While conventional hearing aids over-amplify sounds to compensate for the damaged or blocked area, the Baha re-routes the sound naturally, thereby eliminating the annoying feedback and occlusion often associated with traditional air conduction hearing aids.
"Cochlear is making great strides toward improving quality of life with their innovative hearing solutions," said Robert "Buzz" Kross, SVP, Manufacturing Industry Group at Autodesk.
"We are pleased that Inventor software has been able to play a role in helping Cochlear transform 3D digital concepts into reality for consumers."
Autodesk’s Inventor of the Month program recognizes the most innovative design and engineering advancements made using Inventor–the foundation of the Autodesk solution for digital prototyping.
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