Ideas For Improving Your Own Prosthesis

Hi, I've posted some of the innovations I've made to my own prosthesis and thought others wearers might be interested in ideas for making improvements on your own. Thanks!

http://prostheticsolutions.bravehost.com

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Mr.Devious10 years ago
Another idea is just to be carefully when shoving limbs under a running lawnmower
yerg2k Mr.Devious10 years ago
Ouch! I bet that wouldn't feel too good. I heard that the toungevision thing wasn't really that successful. Apparently the tounge can only resolve so much detail. My idea for sensory feedback was this: Why not have two contacts on the skin that electrically pulse? Just enough so it can be felt, of course. The rate at which it pulses would be determined by how tight the prosthetic's grip is. This could be deduced from the amount of current going to the motor, or some kind of pressure sensor (piezo?)
mark101 yerg2k10 years ago
Raw electricity? I don't think so, that stuff isn't pleasant, and over time can atropy or/and damage nerves. I was thinking if you still had the other hand , you put on a glove with forcefeedback/whatever that coresponds to the what prosthesis is touching. I don't know where else you could send touch sensation. In the future it could also tranfer hot and cold sensation. But in the future we also have nanobots that regrow/rebuild the arm/leg and nerve endings.
yerg2k mark10110 years ago
Possibly, I'd love to think that way. Maybe in a decade, it would be possible to grow a whole hand of my own cells. For now, perhaps some electrical-to-motion feedback mechanism consisting of a small spring, magnet, and solenoid coil so that current will bring the magnet closer to the center of the coil. Perhaps we should branch off here to a new topic to discuss feedback designs.
mark101 yerg2k10 years ago
So the idea of feedback is on the table. 1st Drawback/downer is that it is goingto consumer power = batteries. Then you have to decide where on the body you want the feedback to go to. I remember an illustration of the human bodies perception that had the head hands and feet huge and the rest of the body tiny , to show the amount of never endings in head mouth hands feet compared to the rest of the body. Logically speaking if you want any detail, you have to pick a spot with heavy amount of nerve endings. and starting off small with a practicle/ useable reason. Ok I not having a prosthesis, I don't know what you usually use it on that feedback would help on. Could you give an example , so I can imagine it?
mark101 mark10110 years ago
speak of the devil http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2007/02/02/warm02.xml
A woman fitted with the world's first "bionic arm" controlled by thought alone has been given back a sense of feeling.
laudia Mitchell, 26, a former US marine, regained the ability to carry out simple tasks such as cutting up food when she was fitted with the prosthetic arm last year.

Now doctors have re-routed the ends of arm nerves to a patch of skin on her chest — allowing her to regain the sensation of having her lost hand touched.

A new study of her wrist, hand and elbow function found she could use the artificial limb intuitively and could perform tasks four times quicker than with a conventional prosthesis
royalestel yerg2k10 years ago
I did see and electronic sensing device at siggraph a few years ago that worked quite well on my fingertips. Perhaps on a stub?
royalestel10 years ago
I've been looking to make a hearing aid for my Mom. Now that bluetooth in ear devices are cool, I can just make one that looks like a bluetooth device. A similar approach might work for the prosthesis. Make it loud and proud, dangit! Paint the prosthesis black and add some blue LEDs for that "techy" look. Better yet, make the prosthesis look like it's made out of carbon fiber and build your cellphone into the sucker. Also, lots of funny one-liners about how you came to need the prosthesis. "Hey what happened to your arm?" "Got bitten off by a great white near the Great Reef" or "A Croc got it when I threw myself in front of my girl. We were on safari in Djubuti and took us all by surprise. Couldn't save our butler, though." That type of thing. Darn the shame of a disability. We're all freakin' cracked pots in one way or another. End of rant.
mark10110 years ago
One of the things you don't have with a prosthesis is feeling the object you are touching. Did you see the news story on blind people seeing with their tounge? A camera converts the image received to a device placed on their tounge/mouth. If you had sensors in prosthesis, maybe you could transmit them similarly.
See with your plastic arm?