In 2017, we were approached by Professor Mashudu Tshifularo, Head of the Otorhinolaryngology (ENT) department at Steve Biko Academic Hospital, University of Pretoria, to develop a full ossicle implant. The project aimed to replace the middle ear bones with a prosthesis capable of mimicking the function of the original bones. The ossicles—formally known as the malleus, incus, and stapes, and more commonly referred to as the hammer, anvil, and stirrup—are the smallest bones in the human body. They play a crucial role in transmitting sound vibrations from the eardrum to the inner ear.
The design team comprised Philip van der Walt from The Additive Manufacturing Institute, Jason Laing and Gavin Legott from Promake International, and Professor Tshifularo from the University of Pretoria. Collaborating closely with the professor, we designed the implant, while Promake focused on materials and manufacturing. Creating parts this small posed a significant challenge, but a solution was found using micro-printing in titanium.
The first successful operation was performed on March 13, 2019. Just two weeks later, the patient showed promising results, regaining hearing and progressing well. Full recovery was expected within six months, with proper tests conducted four to six weeks after surgery. With many more patients in line for the implant, we are excited to help restore hearing to those in need.
