An intra-cochlear implant (401) is provided for aiding in the hearing of a patient. The implant includes a body portion (301) implantable within an interior of a cochlea of a patient. The body portion (301) has a proximal end (394), a distal end (396) and a primary axis (A). A plurality of signal carrying electrodes (406) extends along the body portion (301 ). The electrodes (406) have proximal ends (412) and distal ends (414), with the proximal ends (412) being capable of receiving a signal from a signal generator (309), and the distal ends (414) being capable of delivering the received signal to an anatomical receptor within a cochlea. At least several of the plurality of electrodes (406) have a nanoelectrode-sized portion (414). The implant also may include a fluid delivery system of tubules (408, 410), reservoirs (315), and pumps (314) for the delivery of chemicals and cells to activate regeneration of neural elements lost during the hearing loss process.

Intracochlear nanotechnology and perfusion hearing aid device

Cochlear Implants and the Deaf Culture

In a postlingually deaf individual, the magnetic field evoked by stimulation through a cochlear prosthesis (extracochlear electrodes) as well as of the spontaneous magnetoencephalogram was measured over the hemisphere contralateral to the prosthesis (CP), and the results were compared with those obtained from normal-hearing subjects. The latency of the 2 best developed waves M100 and M200 turned out to be prolonged in the CP patient by approximately 40 ms. The amplitude of wave M100 was significantly diminished, while wave M200 was only poorly developed. Location and direction of the equivalent current dipole (ECD) calculated for wave M100 was in good agreement with normal data, whereas the dipole moment was only about one third of the average dipole moment found in normals. Furthermore, evidence was obtained for another magnetic field wave, preceding the delayed auditory wave M100, which exhibits the same latency, ECD location and direction as reported in the literature for the somatosensory evoked magne...

Magnetic fields from the auditory cortex of a deaf human individual occurring spontaneously or evoked by stimulation through a cochlear prosthesis

An extra-cochlear hearing aid implant is characterized by a pad having a plurality of electrode prongs that extend therefrom and which are adapted to provide an electrical stimulus to hearing cells within the cochlea. The electrode pad is adapted to be placed onto endosteum overlying the cochlea in an “extended soft surgery” technique. The prongs are configured to pierce the endosteum and extend into the cochlea. In one form, the extra-cochlear hearing aid implant also includes hollow tubules that extend from the pad and which are adapted to supply and withdraw neurotrophic proteins and other materials in a fluid into and from the cochlea, and also to provide electrical stimulus to the hearing cells.

Extra-cochlear implanted hearing aid device

Extracochlear sixteen-channel electrode system.

The Cologne-Duren research group has developed a new extracochlear eight-channel electrode system. The first observations on six cases have shown encouraging psychoacoustic results.

https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022215100097231

Extracochlear eight-channel electrode system.

In the Field of Cochlear Implant Research the new terms are presented in a number of different ways. Further the achieved results have been based on varying data, making a comparison extremely difficult when not impossible. The contributors to this publication attempt to standardize the terminology, electrical data, and the evaluation of the hearing result, in order to achieve an objective comparison.

[Contribution with regard to the standardization of the terminology, the data and the rehabilitation program in cochlear implant research].

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Extracochlear sixteen-channel electrode system.

Extracochlear eight-channel electrode system.

[Contribution with regard to the standardization of the terminology, the data and the rehabilitation program in cochlear implant research].