The Impact of Location and Device Coupling on the Performance of the Osia System Actuator

Figure 4

Intracochlear pressure difference when stimulating the skull with an actuator coupled at different anatomical locations. Results obtained with an OSI200 actuator are shown in black, blue, and pink for positions 1, 2, and 3, respectively. Magnitudes are plotted together with error bars. The response at positions 2 and 3 differs significantly () from the response at position 1 other at most frequencies. Exceptions in the comparison between positions 1 and 2 include 0.75 kHz for Heads 13 (), 15 (), and 16 (); 2 kHz for Head 15 (); and 3 kHz for Head 16 (). Exceptions in the comparison between positions 1 and 3 include 0.5 kHz for Head 13 () and 1-2 kHz for Head 15 ( and , respectively).