Multi-channel electrode for cochlear implants, having a plurality of contacts distributed over the length of the electrode

A multi-channel, electrode technology, applied in the direction of electrodes, internal electrodes, head electrodes, etc.

Inactive Publication Date: 2009-08-12
MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional multi-channel electrodes in this case have 12 or more contacts, wherein such electrodes can only be pushed in with an insertion depth of typically 17 to 25 mm

Method used

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  • Multi-channel electrode for cochlear implants, having a plurality of contacts distributed over the length of the electrode

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Embodiment Construction

[0013] In the figures, 1 is used to indicate a standard electrode with 12 contacts, wherein the distance between the contacts remains substantially constant. The contacts are designated 2 in this case and are each connected individually via separate lines to the associated control electronics. The electrodes according to the invention marked with 3 have a maximally constant contact distance in the region of the substrate. This region of the Organ of Corti is usually responsible for recognizing frequencies between 15 kHz and 1 kHz. In the rear central region corresponding to an insertion depth of greater than 20 mm, the corresponding contact distances are increased by a factor of 1.33, wherein the corresponding contacts are now designated with 4 and 5 . The distance between the contact 5 and the contact 6 of the electrode 3 in the tip end now corresponds roughly to twice the distance of the contacts 4 and 5 and extends all the way into the tip region and is therefore at an ins...

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Abstract

In a multi-channel electrode for cochlea implants, with a plurality of contacts (2, 4, 5, 6) distributed along the length of the electrode, the distance between the active contacts is greater in an apical end region than it is in a basal region.

Description

technical field [0001] The invention relates to a multi-channel electrode for cochlear implants, having a plurality of contacts distributed over the length of the electrode. Background technique [0002] Cochlear implants are used to transmit electrical signals generated by a microphone in such a way that corresponding nerve stimulation can then be effected via electrodes inserted in the cochlea (Cochlea), which enable a corresponding stimulation transmission to the auditory center of the brain. Such cochlear implants avoid the mechanical transmission of sound to the nervous system and allow direct electrical stimulation of nerves or nerve endings in order to replace in this way the normally functioning mechanical stimulation for triggering stimulation signals in healthy ears. For this interconnection, a high electronic outlay occurs and complex algorithms are used, wherein the electronically generated signals are transmitted on the multi-channel electrodes and the signals a...

Claims

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Application Information

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IPC IPC(8): A61N1/05
CPCA61N1/0541A61N1/05
Inventor J·萨桑·哈姆扎维克里斯多佛·阿诺德内尔
Owner MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
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