INSERTION TOOL FOR ELECTRODE ARRAY SYSTEMS WITH ATTACHED POSITIONER
Publication Date: 2004-Aug-19
The IP.com Prior Art Database
An insertion tool is used to insert an electrode array and positioner into a human cochlea at the same time. The insertion tool includes two stylet wires, two expelling tubes, and a compression spring attached to one of the expelling tubes to reduce, if any, high compressive forces between the insertion tool and the positioner. Once inserted into the cochlea, the positioner and the electrode array are located within the scala tympani and the electrode contacts are positioned against the inner wall of the modiolus of the cochlea, wherein the electrode contacts provide direct electrical stimulation to the auditory nerve cells of a patient with sensorineural hearing loss.