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Bionics

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发表于 5-23-2012 13:16:14 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
(1) Bionics (I) | A Mind to Walk Again; A trial of thought-controlled robotic legs is taking its first steps. Economist, May 19, 2012.  
http://www.economist.com/node/21555544

Quote:

"Dr Contreras-Vidal’s approach gets round these difficulties by employing electroencephalography (EEG), which measures those electrical signals from the brain that reach the scalp. The recording electrodes can be carried by a skull cap, and nothing has to penetrate the skin. Such second-hand signals are not as precise as ones collected directly from the brain itself [using software which interprets signals collected by electrodes implanted in their brains], and probably could not control the complex movements required of an arm and a hand. But experiments using EEG have allowed people to do simple things like pressing buttons on a computer screen by moving a cursor and clicking it, and operating the flippers on a pinball machine.

"A set of bionic legs can cost as much as $150,000. But the lifetime cost of caring for a 25-year-old with severe spinal injury is around $3m. If he can get up, go shopping and even go to work wearing one of Dr Contreras-Vidal’s caps, then both he and the taxpayers will be hugely better off.

Note:
(a)
(i) 'Bionic' woman Claire Lomas completes London Marathon. YouTube.com, published on May 8, 2012 by itnnews.
http://www.youtube.com/watch?v=hUbtyeAeBB0
(ii) Amit Goffer : Rewalk system for paraplegics. YouTube.com, uploaded by shamengo2 on Dec 5, 2011 (2:07 in length).
http://www.youtube.com/watch?v=wLJj_29CRkQ

Skip the most part and start viewing at 1:34 (for stair climbing and sitting)

(b)
(i) José Contreras-Vidal, Professor of Electrical and Computer Engineering, University of Houston
http://www.ee.uh.edu/faculty/contreras-vidal
(ii) Laura Tolley, Press release: UH Researcher Brings Brain-Controlled Exoskeleton a Step Closer to Reality. University of Houston, Apr 25, 2012 (video)
http://www.uh.edu/news-events/st ... l/0425IEEEpaper.php
("A University of Houston engineering researcher’s progress in developing a non-invasive device the human brain could use to control prosthetic limbs has been published in a special issue of IEEE Transactions on Neural Systems and Rehabilitation Engineering")

Watch the video ONLY.
(iii) University of Houston
http://en.wikipedia.org/wiki/University_of_Houston
(state; founded in 1927)

(c) Rex Bionics
(i) Bionics Company Gets Global Foothold. TVNZ, Apr 8, 2012
http://tvnz.co.nz/business-news/ ... thold-video-4821488
(Source: ONE News; A Kiwi company that develops robotic legs for paraplegics is gathering international attention
(ii) Paul Everest, Brogan’s Bionic Legs Arrive From New Zealand (Update). London Community News, Apr 18, 2012 (video).
http://www.londoncommunitynews.c ... londons-bionic-man/
(Mitch Brogan)

Watch the video only.
(d) unfortunate (n); "an unfortunate person"
www.m-w.com
(e) The report supplies a link to (2) below.


(2) Bionics (II) | I Think I’d Like Some Coffee; A paralysed woman gets herself a drink. Economist, May 19, 2012.
http://www.economist.com/node/21555546

Quote:

"Arms are more complicated pieces of machinery than legs, so controlling them via electrodes attached to the skin of someone’s scalp is not yet possible. Instead, brain activity has to be recorded directly. And that is what Dr Donoghue is doing. Both his female participant and a second individual, a man of 66 also paralysed by a stroke, have worked with him before, as a result of which they have had small, multichannel electrodes implanted in the parts of the motor cortexes of their brains associated with hand movements. The woman’s implant was put there in 2005; the man’s five months before the latest trial, described in a paper just published in Nature.

"The other, known as a DEKA arm, is being developed in America specifically as a prosthetic for those who have lost an arm. Normally, it is operated by the wearer moving his chest or moving his toes over buttons in a shoe. The participants used it to reach and grasp a ball made of foam rubber.

Note: "I was a one-sided person": THE DEKA Arm, a VA Research partnership with DoD
http://www.youtube.com/watch?v=KCUwoxuAdYQ
("to help a Veteran who lost is army 40 years ago")
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