Feeds

First man/machine nerve grafts restore amputee's sense of touch

Wired prosthetic hand means we can rebuild him, temporarily

Intelligent flash storage arrays

After years of research and hours of gruelling surgery, scientists have successfully attached sensors from a prosthetic hand to human nerve tissue to allow the device to give its wearer a sense of touch.

A prosthetic hand with a sense of touch

Lucky Dane gets to feel balls again

"The sensory feedback was incredible," reported the test subject, Danish amputee Dennis Aabo Sørensen. "I could feel things that I hadn't been able to feel in over nine years. When I held an object, I could feel if it was soft or hard, round or square."

A team for Swiss and Italian scientists added a feeling of touch by measuring the amount of movement needed to register sensation using artificial tendons and converting that into data that was refined into a signal human nerve sensors could understand. During a five-hour operation four electrodes were grafted onto the ulnar and median nerves in Sørensen's upper arm to enable the sense of touch.

"We were worried about reduced sensitivity in Dennis' nerves since they hadn't been used in over nine years," says Stanisa Raspopovic, first author of the research paper about the operation published in the latest edition of edition of Science Translational Medicine.

19 days of testing were required to ensure incoming electronic signals would be properly recognized by the subject's nerves. But the system worked better than expected and the hand's fingertips were eventually capable of relaying accurate touch data back to the Dane, allowing him to feel from a prosthetic for the first time since losing his hand in a fireworks accident nine years ago.

Sadly Sørensen will have to give up the touchy-feely device and go back to his normal prosthetic now that the experiment is over, but he said he was happy to take part in the experiment and was looking forward to new developments.

He recounted that after losing his hand a doctor told him "there are two ways you can view this. You can sit in the corner and feel sorry for yourself. Or, you can get up and feel grateful for what you have. I believe you'll adopt the second view."

"He was right," says Sørensen. ®

Intelligent flash storage arrays

More from The Register

next story
MARS NEEDS WOMEN, claims NASA pseudo 'naut: They eat less
'Some might find this idea offensive' boffin admits
Boffins who stare at goats: I do believe they’re SHRINKING
Alpine chamois being squashed by global warming
Comet Siding Spring revealed as flying molehill
Hiding from this space pimple isn't going to do humanity's reputation any good
Experts brand LOHAN's squeaky-clean box
Phytosanitary treatment renders Vulture 2 crate fit for export
LONG ARM of the SAUR: Brachially gifted dino bone conundrum solved
Deinocheirus mirificus was a bit of a knuckle dragger
No sail: NASA spikes Sunjammer
'Solar sail' demonstrator project binned
Carry On Cosmonaut: Willful Child is a poor taste Star Trek parody
Cringeworthy, crude and crass jokes abound in Steven Erikson’s sci-fi debut
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.