Coupled Finite Element Model of the Middle and Inner Ear as Virtual Test Environment for Stapes Surgery.

In order to evaluate the performance of different types of middle-ear prostheses, a model of human ear was developed. The model was created using finite element (FE) method with the ossicles modeled as rigid bodies. First, the middle-ear FE model was developed and validated using the middle-ear transfer function measurements available in literature including pathological cases.

Optimal Position and Orientation of an Ossicular Accelerometer for Human Auditory Prostheses.

In this study, a method for determining the optimal location and orientation of an implantable piezoelectric accelerometer on the short process of the incus is presented. The accelerometer is intended to be used as a replacement for an external microphone to enable totally implantable auditory prostheses. The optimal orientation of the sensor and the best attachment point are determined based on two criteria-maximum pressure sensitivity sum and minimum loudness level sum.

Finite Element Model of a Piezo-Electric Actuator Coupled to the Middle Ear.

The hearing contact lens® (HCL) is a new type of hearing aid devices. One of its main components is a piezo-electric actuator. In order to evaluate and maximize the HCL's performance, a model of the HCL coupled to a middle-ear model was developed using finite element approach.