BioMed Research International / 2018 / Article / Fig 1

Research Article

Redesign of the Hannover Coupler: Optimized Vibration Transfer from Floating Mass Transducer to Round Window

Figure 1

(a) The upper panel shows the exploded view of the HCv2 assembly consisting of tip (1), frame with spring (2), clip (3), the FMT (4), and a visual indicator to estimate the applied static force (5). The lower panel shows the assembled HCv2 with the FMT. (b) The HCv2/FMT assembly positioned at the RW membrane. The free end of the spring was fixed with sealing wax to a holder. (c) Static forces versus displacement when the HCv2/FMT was displaced against the RW membrane in temporal bone experiments. (d) Force-displacement characteristic of the HCv2/FMT alone, obtained by displacing it against an incompliant target. Forces were aligned at a threshold of 3 mN. The gray solid lines in (c) and (d) display an example measurement with the previous HC prototype [10].
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