34 results about "Spiral ganglion" patented technology

Method and apparatus for optically and electrically stimulating neurons of auditory nerve pathways of a person to provide auditory sensations for the person including generating a plurality of pulsed light signals having one or more successive pulses, delivering the plurality of pulsed light signals to one or more auditory nerve pathways of the cochlea of the person and selectively controlling the plurality of light signals to optically stimulate and trigger nerve action potentials (NAPs) in the one or more auditory nerve pathways. In some embodiments, the present invention also includes one or more electrical stimulation electrodes used to stimulate the low frequency portions of the auditory nerves.

There is provided a cochlear implant for improving the hearing ability of a patient suffered from hearing impairment comprising an internal receiving unit implanted into the body, which comprises a receiving part for receiving external signal, an active electrode and a reference electrode, characterized in that the active electrode is constructed with a single electrode wire having different thickness in at least two different regions. The active electrode of the internal receiving unit is inserted into a space formed at between the mastoid bone and the ear canal skin and end of the active electrode is inserted into the scala tympani of the cochlea and directly stimulates spiral ganglion. The cochlear implant provides easier implantation into the body and improved hearing ability at a lower cost.

There is provided a cochlear implant for improving the hearing ability of a patient suffered from hearing impairment comprising an internal receiving unit implanted into the body, which comprises a receiving part for receiving external signal, an active electrode and a reference electrode, characterized in that the active electrode is constructed with a single electrode wire having different thickness in at least two different regions. The active electrode of the internal receiving unit is inserted into a space formed at between the mastoid bone and the ear canal skin and end of the active electrode is inserted into the scala tympani of the cochlea and directly stimulates spiral ganglion. The cochlear implant provides easier implantation into the body and improved hearing ability at a lower cost.

The invention discloses an artificial cochlea pre-bent electrode array union. The artificial cochlea pre-bent electrode array union comprises colloid silica and an electrode array union which is pre-bent into a cochlea shape, wherein the electrode array union consists of electrode rings and electrode wires; and the electrode array union and the colloid silica are packaged into a whole body. The artificial cochlea pre-bent electrode array union is characterized in that: a water filling cavity which is parallel to the electrode array union is formed on the colloid silica which is back to the electrode array union; one end of the water filling cavity is closed, while the other end is provided with a water filling hole which is in threaded connection; and the electrode array union which is pre-bent into the cochlea shape can be straightened by filling water into the water filling cavity. The artificial cochlea pre-bent electrode array union is simple in structure, and compared with the prior art, the artificial cochlea pre-bent electrode array union brings great convenience to the operation of implanting the artificial cochlea pre-bent electrode array union; and both the reliability and the safety of an implant are greatly improved, so that electrodes get closer to spiral ganglion cells of the cochlea, the language discrimination capacity is improved, and the long-term normal operation of the implanted electrodes in human bodies is ensured.

The invention relates to an artificial cochlea. The artificial cochlea comprises an external device and an implant, wherein the external device comprises a sound processing device and a power supply unit, the power supply unit is used for supplying power for the sound processing device, the sound processing device is used for processing acquired sound signals to form full frequency continuous sound signals which are sent to the implant, the continuous sound signals sent by the sound processing device are received by the implant, a spiral ganglion is further stimulated by utilizing electrical electrodes, and the continuous sound signals are transmitted to auditory nerves. The invention further relates to a sound processing method of the artificial cochlea. According to the artificial cochlea, after multi-channel sub-band processing on the sound signals, the sound signals are synthesized to form complete sine wave signals, the sine wave signals comprise all the sound information including tones, and patients are made to have real hearing feeling.

Statin compositions are disclosed for stimulating neurite growth from spiral ganglion neurons in the inner ear, as well as methods and kits for preventing damage to or treating damage of auditory neurons and / or hair cells of the cochlea following acoustic or toxic insult. An exemplary statin for these methods and kits includes Pitavastatin having the compound formula (VIII):