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International Journal of Bioprinting Acoustic analysis of 3D-printed ossicles

Figure 5. 3D-printed artificial ossicles.

overall trend was verified in the pre-experiment stage, and including density, elastic modulus, and Poisson’s ratio, were
in vitro auxiliary detection was conducted. The procedure obtained. Figure 7 illustrates the comparison between the
was repeated for the later-described combination. The in finite element numerical simulation and the experimental
vitro test results are presented in Figure 6. trend. The dotted line represents the simulation result,
while the solid line represents the experimental result.
In order to determine the auditory characteristics, tests
were carried out to measure the response of the stapes Figure 7a indicates that the mallet and masonry of
footplate to sound. Sound transmission experiments auditory ossicles are both TC4; Figure 7b indicates that
demonstrated that the model exhibits behavior similar to the ankle is TC4, and the silicon muscle is 316L; Figure
that of the human middle ear. 7c indicates that the ankle is TC4, and the silicon muscle
is HA/PCL. Based on this configuration, the displacement
After conducting the mechanical testing of the materials trend of the stapes floor is studied by replacing the stapes
mentioned earlier, the actual property parameters, with three different materials. In Figure 7, the solid

Figure 6. In vitro test validation.

Volume 10 Issue 3 (2024) 329 doi: 10.36922/ijb.2040