Release date: 2010-08-10
The University of Jena, Germany, published a communique on August 6th that the school's scientists have developed a new type of forearm prosthesis that can effectively alleviate phantom limb pain in patients with forearm amputation. This technology brings hope to patients suffering from phantom limb pain for many years.
The traditional forearm prosthesis is connected to the upper arm stump through the collar, and the pressure sensor between the thumb and the index finger and the thumb is used to adjust the grip strength of the prosthesis. Scientists at the University of Jena Biomedical and Clinical Psychology and University Hospital Trauma Surgery have modified sensors to transfer the pressure signals from the prosthetic hand to the upper limb of the residual limb, allowing the brain to receive signals from the prosthesis and feel it is a real hand, thus avoiding The problems caused by the changes in the brain's various divisions.
Phantom limb pain means that the patient not only feels that the limb has been removed after the amputation, but also has pain in certain parts of the phantom limb. This is because the area of ​​the brain that is responsible for the treatment of limb irritation is suddenly “unemployedâ€, causing changes in the division of labor in the brain. The rest area will deal with the stimulation of other body parts, especially at the broken limbs, resulting in increased pain. Some patients have a strong sensation of phantom limbs, and even taking large doses of painkillers is ineffective, and there is a risk of drug dependence.
The researchers said that the results have been tested on the first patients and responded well. More tests are currently needed to confirm whether it has broad applicability.
Source: Xinhuanet
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