Biocompatible materials can be used to additively manufacture implants or prosthetics. Roughly 0.5% of the world’s population suffers from otosclerosis, abnormal growth of bones near the middle ear that results in hearing loss. Thousands more are suffering from ear trauma or diseases that affect a person’s hearing. This research focuses on developing the design of the stapes, the bone that transmits sound vibrations from the incus, another bone in the middle ear, to the oval window adjacent to the inner ear and later 3D printing it in a stereolithography printer (SLA). By optimizing the print parameters, the surface finish of 3D printed stapes model can be improved. With this research, a solution that will optimize the printing of middle ear prosthetics is sought. Making the prosthetics more affordable for consumer, while maintaining the proper functionality and durability of the device is also being examined. Discussion will include biocompatibility, polymerization properties, prosthetic mass, sound transmission frequencies, and measurement of surface finish, mechanical properties, and sound transmission.
- Demonstrate an understanding for the benefits of resin based 3D printing.
- Describe the process of developing a 3D SLA printed Stapes Prosthetic.
- Understand the importance of post production of resin based Stapes Prosthetics.