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Automation & Motion Control

Video: Bionic Arm Aids Amputee Soldiers

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GlennA
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'foot-controlled' prosthetic arm ?
GlennA   6/5/2012 9:36:39 AM
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The arm is controlled by a sensor on the foot ?  I would have hoped they could have sensors at the shoulder that could somehow use nerves that originally controlled the arm movements.  And a selection of hands / grippers ?  Since this is still in development I can understand that one 'hand' model doesn't combine fine, precise movements and 'strong' movements due to feedback issues.

Elizabeth M
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Re: 'foot-controlled' prosthetic arm ?
Elizabeth M   6/5/2012 9:44:55 AM
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Yes, since this is still in testing, Glenn, different kinds of controls may come into play in the future as users provide feedback. The hand grips are quite unique and allow for more freedom of movement than merely a static prosthetic hand would.

gsmith120
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Re: 'foot-controlled' prosthetic arm ?
gsmith120   6/5/2012 4:17:51 PM
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It would be nice if the nerves could be used in controlling the arm's movement.  For some reason, I'm thinking I saw a prosthetic limb that was using the nerves to control movement. 

This is a really interesting article and a worthy R&D project. 

 

Charles Murray
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Re: 'foot-controlled' prosthetic arm ?
Charles Murray   6/5/2012 7:28:11 PM
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We did a story on a prosthetic that used the nerves to control movement, gsmith120. Maybe this is the one you're thinking of:

http://www.designnews.com/document.asp?doc_id=226412

 

3drob
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Re: 'foot-controlled' prosthetic arm ?
3drob   6/6/2012 9:32:25 AM
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That is some neat stuff.  I like doing what I'm doing now, but I'd love to be working on something that will have such a profound impact in the immediate quality of people's lives.

It would be useful if Design News published a list of companies doing similar work by region.  Not that I'm looking, but ...

Ann R. Thryft
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Re: 'foot-controlled' prosthetic arm ?
Ann R. Thryft   6/12/2012 1:57:08 PM
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Chuck, thanks for posting this link. That story is from 2005. Maybe that technology turned out to be more complicated than developing a robotic arm.

gsmith120
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Re: 'foot-controlled' prosthetic arm ?
gsmith120   7/27/2012 1:49:02 PM
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Nice article Chuck.  Decided to add this link from my April 2012 National Defense Magazine.  http://www.nationaldefensemagazine.org/archive/2012/April/Pages/ProstheticArmControlledbyBrain.aspx

TJ McDermott
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My number 2 hand
TJ McDermott   6/5/2012 10:13:57 AM
"The shoulder, elbow, and wrist pieces can be worn together or separately" immediately brings forth memories of Robert Heinlein's "The Moon Is a Harsh Mistress" in which the protagonist changes prosthetic hands depending on the current task.

Granted the sensor inputs are still a bit primitive, but look at the adances so far!  This is science fiction turned real, and very exciting to see.

Ann R. Thryft
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Re: My number 2 hand
Ann R. Thryft   6/5/2012 3:44:00 PM
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Wow, science fiction come alive is exactly right. This is exciting stuff.

Charles Murray
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Re: My number 2 hand
Charles Murray   6/5/2012 7:26:10 PM
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I agree, Ann. This is a great application of engineering talent.

apresher
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Bionic arm
apresher   6/7/2012 9:08:48 AM
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Great stuff.  It only makes sense that the advances in electronic motion control could make a big difference in these types of applications, especially in terms of more advanced movements.  Sensor inputs could be key to expanding the possibilities of this technology.  Thanks.

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