Bionic armed woman regains sense of touch

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Nick @ Feb 4th 2007 12:56PM

learned about this in class. And there was a guy that's had this for a while, so I don't think she's the first... maybe the first with the commercial version of the product or something.

They take the ends of nerves that used to feed the missing arm and use them to innervate bundles of the pectoral muscles (which is no longer used because the patient has no arm!). Then they used surface electrodes to pick-up when the pectoral muscles are being flexed (which occurs when the patient "trys" to move her missing arm). Use this pattern of activation to send inputs to the arm actuators and volia!

Note that there are 3 set of muscle bundles (see pic). In the testing with the other dude I saw he was able to control 2 of the 3 types of motion at once (any combo i believe). cool stuff!

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