He was director of the AP-HP (Paris hospital group) Laboratory of Auditory Prosthesis and director of the ENT Research Laboratory at Paris-Saint-Antoine University Hospital from 1967 to 2001.
He was also head of the institution's ENT Department from 1978 to 1998.
In 1982, he was elected a member of the International Collegium ORL-AS.
He achieved worldwide recognition in the late 1970s thanks to the work completed by his Paris laboratory's multidisciplinary team on the multichannel cochlear implant.
This implanted electronic hearing device was developed at Saint-Antoine and alleviates bilateral total deafness.
When implanted early in young children, it can also help overcome the spoken language problems associated with deafness.