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Posted by on Nov 12, 2012 in Science, Technology |

Implant in the ear drum uses “biological” to auto-load

This is a new development in a type of implant that requires no external load. A team of surgeons advised by the have developed a chip cochlea extracting electrical signals from the for use as filler .

A chip that is part of the latest inventions designed to be self-sufficient and capable self-loading, eliminating the need for external power supply and allowing permanent surgical implantation in many cases.

Cochlear implants have been around for decades, in fact, the first electrical stimulation of the auditory nerves took place in the 50s. A success that has lasted for years and so far, with hundreds of thousands of people with severe difficulties, all needed external battery for charging.

The idea of MIT researchers is forever modify these implants by a natural battery that is latent in the ear. According Konstantina Stankovic, surgeon in Massachusetts:

In the past, people thought that the place where the ear hearing potential is inaccessible to implant devices. It was thought to potentially dangerous way to invade this area. We have known for 60 years that this battery exists and is important for normal hearing, but no one has attempted to use this as a useful battery.

The investigators managed by converting mechanical strength tympanic vibrations in electrochemical signals transmitted to the brain. Stankovic’s team used for this tiny electronic chips, all equipped with several low resistance electrodes and a radio transmitter low power. Although the inner ear is capable of producing a significant electric current is still very low, so that researchers were able to extract only a little in order to maintain a low load and not interfere with hearing. Finally used a power conversion circuit to help feed low-power chip.

An implant that has been a success in the first tests with animals and now awaits a development in the search for smaller devices and less invasive. Some promising initial results suggest that cochlear implants in the future could potentially transmit biological vital statistics with which to track therapy.

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