Friday, March 18, 2011

Rehabilitation glove uses artificial muscles

I know this is actually meant for quadraplegics but it could easily be used for stroke rehab. And it would be a lot less conspicious than the SaeboFlex
http://www.gizmag.com/go/3437/
from Oct. 2004 I wonder what happened to it? There is a tremendous need for something like this. As a joke I once mentioned to someone that I needed little motors for each of my fingers to passively flex and extend them thousands of times daily. Two problems with this; no thumb, getting a glove on a spastic hand is nigh impossible. Where did the prototype end up?
I found this one by backtracking a search hit on my blog that led to a Polish search engine looking for rehabilitation gloves.
A rehabilitation glove powered by artificial muscles has won the recent AUD $10,000 British Council Eureka Prize for inspiring science. Designed by the Quadriplegic Hand Research Unit at the Royal North Shore Hospital, the invention will help people with permanent hand-movement loss to perform the daily functions most of us take for granted.
The Australian design is the first medical application to use dynamic actuators that contract when stimulated in a similar way to normal muscles. It opens up new therapeutic possibilities for those suffering from paralysed hands and future applications may even see artificial muscles implanted in the body to enable bionic functionality.
Currently one of the most effective ways to rehabilitate damaged hands or to maintain supple conditions for paralysed hands is by a gentle, continuous motion of hand joints. This often requires intensive attention over long periods, making it unfeasible for a therapist to be continuously present.
With the rehabilitation glove each joint can be independently moved to a desired angle. Portable control software allows the therapist to program desired force, speed and range of motion for each of the15 finger/ thumb joints in the hand, giving continuous passive joint movements for hours at a time.
The Rehabilitation Glove will provide a light hand grasp with a controllable holding force. For people with paralysed hands, this function can be triggered using an external switch. This beneficial feature allows the device to control and maintain a grasp force, thereby securing the grip on objects held.

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