Professor Graeme Clark invented the Cochlear Implant

Since the 1960s, Professor Graeme Clark had been engaged in intense research into the areas of otolaryngology (ear, nose, and throat surgery) and the human brain's response to coded sound.
In 1967, inspired by his deaf father's struggles, Professor Graeme Clark embarked on a mission to help the profoundly deaf hear.
His PhD from 1969 reflected a keen interest in finding ways to improve, restore and even introduce hearing to patients. From here he started investigating methods to electrically stimulate the auditory nerve.
Clark's research led to the development of the cochlear implant and the means to implant the device in human recipients. In 1978, assisted by Dr Brian Pyman, Professor Clark successfully performed the world's first cochlear implant operation on Rod Saunders at Melbourne's Royal Victorian Eye and Ear Hospital. Clark further developed the cochlear implant to a 22-channel device and children became recipients of the cochlear implant for the first time in the 1980s. The 1980s also saw the Australian Company Cochlear Pty Ltd produce the implant for recipients worldwide.
In 1990 the US Food and Drug Administration approved the implant as safe and effective for children from two and above.
Today, hundreds of thousands of deaf individuals have received these implants, transforming their lives. Clark's determination paved the way for this revolutionary solution, bridging the gap between silence and sound.
https://youtu.be/E4d2UMhP1Ao?si=Bv1dw3-TywNXnm61