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The Tetraplegiac Neuroprosthetic By Robert Valenti. What is Tetraplegia?. Also known as quadriplegia Paralysis caused by illness or injury Partial or total loss of all one’s limbs and torso Loss of sensation and control of limbs. The Neuroprosthetic Arm. Seven degrees of freedom
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What is Tetraplegia? • Also known as quadriplegia • Paralysis caused by illness or injury • Partial or total loss of all one’s limbs and torso • Loss of sensation and control of limbs
The Neuroprosthetic Arm • Seven degrees of freedom • Has three dimensional translation, three-dimensional orientation, and one dimensional grasping • Reinstates command signals for hand placement • Increases quality of life
Installation • Surgery • Two 96-channel intracortical microelectrode implants, called the “Braingate”. • Motor cortex
Results So Far • Arm movement with only two days of training • Advanced movements after 13 weeks of training • Massive increases to quality of life • Ineffective with subjects who have viable limbs
What the Future Holds • Possible availability within 5 to ten years • Feedback so a person can interpret sensations, like the pressure of a grip • The world of brain-to-computer interface will explode
References • http://www.thelancet.com/journals/lancet/article/PIIS0140-6736%2812%2961816-9/fulltext The Lancet, Volume 381, issue 9866 • http://news.cnet.com/8301-27083_3-57559675-247/brain-implants-let-paralyzed-woman-move-robot-arm/ • http://news.cnet.com/8301-11386_3-57436475-76/paralyzed-woman-moves-robotic-arm-using-thought-alone/