Nobel Biocare Ab

Patrik Johansson

Bengt Kasemo

Bjorn-Owe Aronsson

Jukka Lausmaa

A hearing aid amplifies sound and, by air conduction, stimulates the eardrum to vibrate. A hose or tube may be surgically implanted in the skull bone, or may be otherwise connected in order to convey amplified sound from an electronics module in the hearing aid to the middle ear to stimulate the eardrum to vibrate from the inside of the ear. By doing so, the auditory meatus is left free, and no intervention is required on the eardrum, the inner ear, or the bones of the middle ear.

Hearing aid

A method for preparing implant surfaces using gas discharge plasma including conveying the implants to a vacuum chamber. The implants are treated with an inert gas plasma to remove existing surface contamination and oxide layers from the implant surfaces. The implants are treated with an oxidizing plasma or by means of thermal oxidation to reoxidizing the implant surfaces. The implant treatment steps are carried out in a closed space, including a controlled atmosphere and produce a highly accurate and reproducible microstructure, composition, purity, and sterility in the implants.

Growing community of inventors

Hovås, Sweden

Patrik Johansson