Each time a limb touches an object, a sensor activates to apply an electric current to a functioning nerve to reproduce the sense of touch.
“Every time a limb touches an object, it puts pressure on the device and activates it,” Maoz said. Jerusalem Post.. “Bypassing damaged nerves and sending current to functioning nerves, creating a tactile sensation.”
In addition, the device will automatically charge when it senses friction.
New devices can help people with nerve injuries avoid dangerous accidents and improve their quality of life.
“There are millions of cases in life that require nerves,” Maoz said. “If you need to have a cell phone, you need to know how much pressure you put between your fingers. When a person injures a hand or foot, what is crushing them? I can’t feel what else is happening to their limbs.
“And it’s also your toes-if you can’t feel how much pressure you put on your toes, you can’t walk straight,” he said. “Instead, you will be supple.”
Maoz said, “Arami shared with me the difficulties he experiences in treating people who have lost tactile sensation in one or another organ as a result of an injury. This loss of sensation is someone’s salad. It is important to understand that a very wide range of injuries can result from small injuries, such as chopping or accidentally cutting yourself with a knife, to very serious injuries. Even if the nerve is sutured, the sense of touch is often impaired.
“We decided to work together on this challenge and find a solution to restore tactile sensation to those who lost it.”
They tested the sensor by implanting it in the rat’s paw. They tapped the device over 500,000 times. Tests showed that the sensors allowed them to respond to sensory stimuli and that the animals were able to walk normally.
This study was recently published in the peer-reviewed journal ACS Nano.
“We tested the device on animal models and the results were very encouraging,” says Maoz. “Then we test the implant on a larger model and later implant the sensor on the fingers of people who have lost the ability to sense touch.”
He added that the device is made of biocompatible materials that are safe for the human body and should be transplantable anywhere, not just on the fingers and toes, once clinical trials are complete.
He said the porting process is simple and once ported, the device disappears.
“If all goes well,” Maoz said the sensor could be available within the next two years.
“We hope that this device will take us one step further in the field and regain a tactical feel,” he concludes.
https://www.jpost.com/health-science/israeli-team-aims-to-restore-sense-of-touch-to-those-with-nerve-damage-673593 The Israeli team aims to regain tactile sensation in people with nerve damage