Similar to other bone conduction systems such as the BAHA, the Sophono device has an implantable component, and an exterior, detachable component called the sound processor. The implanted component is a titanium encased magnet that is secured to the skull through a small incision behind the ear, which can be performed under local anesthesia with “twilight” sedation.
Some of the advantages of the Sophono compared to the BAHA:
- No external abutment
- No routine cleaning of the abutment
- No extended wait for activation
Some issues related to the Sophono not found in the BAHA:
- Distortion of MRI images obtained of the brain near the implanted magnet
- Possible pressure sensitivity of the skin between the internal and external magnets