| 摘要 |
PROBLEM TO BE SOLVED: To provide a sensorineural hearing loss auxiliary devices fully implantable, capable of covering over the entire band sounds of the audible frequency band of human beings.SOLUTION: An artificial sensory epithelium 1 embedded in a cochlea 301 of a patient includes: a piezoelectric film 2; and a multiplicity of micro-electrodes 3, 3, ... installed on the piezoelectric film. The piezoelectric film is provided along a basement membrane 306 inside the cochlea, a portion corresponding to a vibration portion of the basement membrane of the piezoelectric film vibrates by sound waves arriving from outside the cochlea, and the micro-electrodes installed at the vibration portion of the piezoelectric film among the multiplicity of micro-electrodes imparts electric stimulation to spiral ganglion cells 311. |
