[A single-channel cochlear neuroprosthesis made in Czechoslovakia].

The authors explain the principle of cochlear neuroprostheses, an electronic device which makes it possible to mediate acoustic perceptions to completely deaf patients. They describe the Czechoslovak cochlear neuroprosthesis, developed and manufactured in the Laboratory of electronic sensory prostheses. For clinical application preoperative and postoperative examination of the patients is essential. For these examinations in the Laboratory a computer-controlled testing system was developed. The authors describe tests for the selection of candidates for implantation and for evaluation of the assets of the neuroprosthesis.