Researchers at EPFL (École Polytechnique Fédérale de Lausanne) have developed a soft auditory brainstem implant (ABI) that could significantly improve hearing restoration for individuals who are not candidates for cochlear implants. Unlike traditional rigid ABIs, this new flexible device is designed to conform to the natural contours of the brainstem, reducing side effects and improving sound perception.
Cochlear implants have helped many people regain hearing by transmitting sound signals from the inner ear to the brain. However, these implants require an intact cochlear nerve to function. For individuals with damaged or missing cochlear nerves, auditory brainstem implants offer an alternative by directly stimulating the brainstem. Existing ABIs, made of rigid materials, do not fit the curved surface of the brainstem well, often resulting in unintended stimulation of surrounding nerves. This can cause side effects such as dizziness, facial twitching, and discomfort, leading to the deactivation of several electrodes and limiting the implant’s effectiveness.
Continue reading… “Flexible Brainstem Implant Offers New Hope for Hearing Restoration Beyond Cochlear Implants”