The new development from Jena provides the upper arm with sensory information which is then transmitted to the brain. This reduces phantom pain (Photo: Sandra Preissler/FSU)
Pressure sensors between thumb and index finger regulate the power of the artificial hand (Photo: Jan-Peter Kasper/FSU)
Professor Thomas Weiss from Jena University. (Photo: Jan-Peter Kasper/FSU)
Phantom limb pain, where a person feels pain in an absent limb or a portion of a limb, is a very real phenomenon, most commonly experienced after amputation of an arm or leg. Chronic phantom pain is believed to affect around 10-45% of amputees. It is highly therapy resistant and can last for years, or even a lifetime, despite high dosages of painkillers that put patients at risk of addiction. However, hope may be on the horizon thanks to a modified hand prosthesis which enables feedback between the artificial hand and the brain.
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