| 摘要 |
An object of the present invention is to provide a method for manufacturing a standard ear shell for an in-the-ear general purpose hearing aid in consideration of the shape and size of a user's external auditory meatus. The standard ear shell for an in-the-ear general purpose hearing aid is manufactured by quantitatively measuring the shape and size of the user's external auditory meatus and then calculating its average values. The invention enables the reduction of production costs while minimizing sound feedback in a hearing aid or receiver. In addition, the hearing aid can be quickly supplied to users and the standard ear shell can be mass-produced. At the same time, the quality of the ear shell can be constantly maintained. |
