To assess the feasibility of achieving a minimally invasive access to the inner ear through the navigation-based HEARO procedure and subsequently insert the electrode array of the cochlear implant through the access.

• Demonstrate the feasibility and efficacy of performing a middle and inner ear access for cochlear implantation procedures in adults.
• Validate the procedure workflow including imaging, planning, safety assessment, image to patient registration, robotic drilling, electrode insertion and device implantation.
• Validate the system and procedure safety mechanisms.
• Collect required data for validation of safety algorithms and procedure workflow optimisation.
• Validate the HEARO system.

Inclusion Criteria:

• Patients suffering from profound sensorineural deafness requiring a Cochlear implant

Exclusion Criteria:

• Age under 18 years
• Pregnant women
• Anatomical anomalies of temporal bone
• Chronic otitis media with or without cholesteatoma