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 Discovery offers hope to paralysis victims

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Discovery offers hope to paralysis victims Vide
PostSubject: Discovery offers hope to paralysis victims   Discovery offers hope to paralysis victims Icon_minitimeWed Jan 20, 2010 2:36 am
SCIENTISTS have made the eyes of a dead person blink, in a world-first use of artificial muscle that could eventually benefit people with facial paralysis after a stroke or injury.

Researchers from the US used artificial muscles made from silicon that can expand and contract when activated by an electrical impulse, the same process that allows muscles to move in the body. The technology is known as electroactive polymer artificial muscle.

Discovery offers hope to paralysis victims Bioniceye-420x0

The researchers were able to make the eye blink by inserting a bundle of muscle fibres from another part of the face above the eye of a cadaver. The ends of the fibres were then connected to the artificial muscle which is powered by a battery and contracts and releases, moving the eyelid.

Douglas Coster, a professor of ophthalmology at Flinders University, said permanent facial paralysis, which can affect the muscles around the eye, was a common condition that could result from an injury, birth defect or nerve damage.

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