Prosthetic limbs - works like

Entering the army, the US soldier was assigned to a police force in the outskirts of Baghdad. Early in the morning when the sun was not rising, a series of rockets fell down in front of his patrol path. It is still lucky rounds. A close friend with a deformed arm. A stream of heat ripped through his muscles. When the surgery is complete, the body part is crushed below the shoulder blade. But I still have hope.

Since the war in Iraq and Afghanistan, more than 370 US soldiers have had their limbs removed. Indeed, there were wheelchairs stuck in the lobby of the Military Medical Center in Washington. This is also the place where Halfaker met people with the same situation as Melisa Stockwell - a gymnast and climber, in just a few weeks in Baghdad, she lost her left leg in a April 2004 street bomb.

These two women have the same frustrated mood. Stockwell, 26, must wear a pair of artificial legs containing an advanced microprocessor circuit, but must work for months to walk. She only wished that the silicone bag she called " small leg " did not irritate her and put pressure on one side of her body, causing her gait to become pitifully limp. The fake leg helped her to walk faster but still could not avoid the roughness and weakness of her legs.

Halfaker female soldier with right shoulder removed. The fake arm was like a shield stuck to her. It was born before the war, very inconvenient and crude."I don't want an arm that weighs 20 pounds, I want it to weigh only 3 pounds." - Halfaker said. And she folded the prosthetic arm, practiced washing dishes, dressing, driving and running with one hand. She has adapted to the body as intact as everyone else.

Project to improve Manhattan prosthetics

No artificial parts are of optimum quality, since speed, movement, flexibility and formality are not easy to see at all. The production of artificial limbs is not of interest because the market is small and there is not enough financial resources to promote the improvement of artificial limbs. The US currently has 1.8 million surgeries removed, but the number of people using alternative artificial parts is very small because of their limitations.

From the lesson through the Vietnam War - as a result, the organization of the US veterans has so far been demanding compensation for the health effects they suffer - the US Government pledges not to let soldiers Children fall into the same situation.

That promises serious investment in this area. Scientists are collaborating to find a satisfactory solution to the recovery method and appropriate treatment drugs. Estimated total funding for the project is 48.5 million USD.

The project goal is to create artificial limbs capable of interacting with the brain, being controlled and transmitted information about the brain through neurons - just like the real limbs of humans. Materials such as mixed plastic, metal and some other materials, if combined well, will ensure the operation mechanism.

The advocate must drastically improve the technology of making artificial limbs, Hugh Herr had to live with prosthetic legs for a decade from a childhood accident. We are living in an era of modern development technology, and if there is a budget it will be an opportunity to improve strongly and comprehensively this technology.

Improved with many difficulties

After the Second World War, disabled people accepted to use artificial limbs in lieu of wooden limbs. In 1960, former Soviet scientists invented more means to support people with disabilities. The electrode helps to transmit nerve signals on the muscles that can be connected to the artificial limbs, hands that can bend or straighten.

Around 1980, due to the request of many wounded soldiers, the improved prosthetic microprocessor circuit allowed for instant state changes, movement speed and bend were also raised. Although prosthetic limbs still seem rigid, sometimes there are problems with movement, but progress is evident on the elbows, wrists and hands.

In the meantime, prosthetic limbs are improved by 95% of people with leg injuries. However, these replacement parts do not give users the feeling of contact with specific objects. This isolation prevents losing the sharing of feelings with other parts of the body.

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