Hp. Zenner et H. Leysieffer, Total implantation of the Implex TICA hearing amplifier implant for high-frequency sensorineural hearing loss - The Tubingen University experience, OTOLAR CLIN, 34(2), 2001, pp. 417
Hearing devices may be classified as sound-producing hearing aids, electric
ally stimulating devices, and vibratory hearing aids. Because patients may
lose physiologic cochlear amplification, hearing devices for the treatment
of sensorineural hearing loss are used as signal amplifiers. The totally im
plantable communication assistance (TICA) device is a European-approved tot
ally implantable vibratory amplifier implant. It picks up the sound signal
transcutaneously from the external auditory canal near the eardrum, amplifi
es the signal, and transduces the signal into microvibrations that are deli
vered to the ossicular chain.