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Related Concept Videos

The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.

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Related Experiment Video

Updated: Jun 18, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Energetic analysis for self-powered cochlear implants.

D Accoto1, M Calvano, D Campolo

  • 1Laboratory of Biomedical Robotics and Biomicrosystems, University Campus Bio-Medico, Rome, Italy. d.accoto@unicampus.it

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|December 8, 2009
PubMed
Summary
This summary is machine-generated.

This study explores powering cochlear implants (CIs) without external charging. Researchers found head vibrations during walking can generate sufficient energy for a fully implanted device, offering a novel solution for sensorineural deafness.

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Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Energy Harvesting

Background:

  • Cochlear implants (CIs) address profound sensorineural hearing loss.
  • Current CIs rely on external batteries requiring frequent recharging.
  • A fully implanted, self-powered CI would enhance patient quality of life.

Purpose of the Study:

  • To investigate the feasibility of a self-sustaining, fully implanted cochlear implant.
  • To identify a viable internal power source for auditory nerve stimulation.
  • To assess energy generation potential from ambient motion.

Main Methods:

  • Demonstrated that sound waves are insufficient for CI power.
  • Proposed utilizing mechanical energy from head vibrations during walking.
  • Conducted experimental measurements of head motion to quantify energy availability.

Main Results:

  • Sound energy is inadequate for powering cochlear implants.
  • Head vibrations during walking offer a feasible energy source.
  • Experimental data supports the energetic viability of this harvesting method.

Conclusions:

  • A fully implanted, self-powered cochlear implant is energetically feasible.
  • Head motion energy harvesting presents a promising alternative to external batteries.
  • Further research into technical implementation of the energy harvester is warranted.