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Biomedical subjects

P Pialoux

Publications and source records attributed to P Pialoux.

120 records · Page 7Linked to original sources
PubMedDate not supplied

[Surgically implanted electronic apparatus for the rehabilitation of total deafness and deaf-mutism].

An electronic device for multichannel cochlear implant is now available in case of total deafness and deaf-muteness. Any surgical technic of electrodes implantation may use this prosthesis. It consists in two parts, an outside package and an implanted receptor. The external device cut the sound in eight channels, whose frequencies correspond to those of the telephon bands. These eight sinusoidal waves are changed in pulses whose frequency and duration depend on the intensity of the initial signal. All these informations are multiplexed and injected in a high frequency wave to an antenna. Electromagnetic induction supplies through the skin the implanted receptor with power and informations. This receptor is preoperatively connected to the electrodes. With this device and with phoniatric training some speech recognition, and in case of deaf-mute patients voice improvement, may be obtained in some months.

Cochlear Nerve↗
PubMedDate not supplied

[Impedance measurement in the diagnosis of otitis serosa. Description of a new test: star (author's transl)].

A new presentation is given providing an overview of impedance measurement and audiometric examinations and one that makes it possible to determine at a glance the functional status of the middle and inner ear (presence or otherwise of complete recruitment). In the impedance measurement diagnosis of otitis serosa it is also necessary to compare the state of the stapedial reflex with the tympanometric curve. In particular, attention is drawn to a new technique in which the amplitude of the stapedial reflex is measured at 10 dB above the trigger threshold of this reflex (Star). If this amplitude is greater than 2 Madsen units at sensivity 3, ther is not fluid in the middle ear. Finally, the impedance manometer can be used, according to Holmquis'ts technique, to monitor the permeability of the trans-tympanic drain and the recovery or otherwise of tubal permeability.

Audiometry↗