Military Technology

Latest URL: After asking this question, Wu Hao glanced at everyone before continuing: "First of all, our body structure is actually very complicated.

Generally speaking, the prosthetics that we humans with disabilities mainly use are limbs, that is, our arms, legs and feet.

When a person loses his legs and feet, he loses the ability to move. Although we humans invented crutches and prosthetics a long time ago, these are also used to assist the poor in their actions. Although it can't return to normal, it can barely be used for walking.

With the development of human society, or the increasing scale of wars, the research and improvement of prosthetics are also developing rapidly.

Yes, war is a disaster for human beings and human society. In particular, modern thermal weapons wars have caused a large number of people to lose their hands and feet.

The urgent need for better prosthetics for these disabled people has also given birth to the rapid development of prosthetic technology and pushed prosthetic technology into the modern age.

Today's ordinary prosthetics are specially customized according to the patient's physical condition, and the design of ergonomic mechanics also makes these prosthetics more suitable for disabled people. Many prosthetics also help these people stand up again and walk normally without any problems.

Even some high-tech prosthetics, such as the once famous "Blade Warrior", the high-tech prosthetics he wore allowed him to walk like flying. With this, he entered the sports arena and competed with many healthy athletes on the same stage. "

After walking a few steps, Wu Hao continued to talk with a smile: "It looks good, but these are only prosthetics for legs and feet. At present, these prosthetics only replace the most basic functions of the legs and feet of disabled people, and they are far less flexible than real limbs.

Compared with legs and feet, our hands are more flexible, which is why until now, the prosthetics for hands are mainly immobile simulation models. The biggest function of wearing it is not to replace the functions of the original limbs, but to cover up the shame and comfort the heart.

The biggest reason for this is because our arms and hands are too flexible and functional compared to our legs and feet.

Many technology companies and medical companies have also launched prosthetics with certain functions for such scientific research activities. But it's just a water chestnut, and most of them haven't come out of the laboratory, let alone commercial use. "

"That's right, as we demonstrated earlier, we have created such a flexible and lightweight robotic arm that is the same size as our real arms and hands.

You all watched the presentation just now,

Very good. But is this really all right? Can such a robotic arm really be installed on our disabled bodies to really replace their disabled limb functions? "

Wu Hao shook his head, then sighed: "We have solved the complex mechanical structure of the robotic arm, the super difficult motion control system, and we have also developed a super solid-state battery that can independently support it to work for a long time.

But there is still a problem that cannot be solved, and that is how to install this robotic arm or we call it an electronic prosthesis on a human body.

To put it bluntly, it is how to let our disabled people wear and control this robotic arm. "

After glancing at everyone, Wu Hao continued: "At present, there are many technical theories on this aspect, but the most accepted and recognized by everyone is the brain-computer interaction technology, which is what we commonly call mind control technology."

"How do we control our hands?" Wu Hao asked everyone, waving his hands again and again.

Hearing this question, the onlookers couldn't help but swing and observe their own arms.

"Use your brain!" A spectator couldn't help but shouted back.

Hahahaha... Everyone at the scene laughed.

Wu Hao nodded with a smile and said, "That's right, it is controlled by our brains. From a scientific point of view, it is our human cerebellum that controls the movement of our human body.

The part of the central nervous system in the brain that manages movement, which is what we call the cerebellum, sends instructions to the spinal nerves. After the spinal cord receives the command, on the one hand, it "replies" the brain's command upwards, and at the same time executes the brain command to control each branch of the motor nerve to produce movement.

Based on this theory, scientists and some medical experts have proposed three methods of controlling this electronic prosthesis, which can be said to bring new hope to disabled patients. "

"Three types?" Everyone showed puzzled expressions.

Wu Hao nodded with a smile and said, "That's right, there are three kinds. First of all, the first one is called brain-computer control technology, which is mind control.

Our human brain produces different brain waves when we think about different things, and brain-computer control technology uses these different brain waves to achieve the purpose of control operations. At present, we already have such technology on the market. For example, a research team once demonstrated that using brain-computer control technology to type can reach an input speed of 70 characters per minute, which is not slower than our hands at all.

There are also some research and development teams that have opened up wheelchairs that are specially controlled by thinking to help patients with high paralysis and gradual frostbite.

Then, can we use this brain-computer control technology to control the robotic arm with our minds, so that the robotic arm can move as desired by the wearer after only a short training and adaptation.

The second technology is to use special sensing equipment to collect the movement bioelectrical signals in our cerebellum transmission channel spinal nerve, so as to control the mechanical arm.

That is to say, our wearer can wear a special vest, or just stick the sensor directly on the spine of the back. This is not only beautiful, but also very convenient to match.

As for the third technique, it is to connect the control nerve in the robotic arm with the nerve at the broken limb through surgery. In this way, the original nerve can control the movement of the mechanical arm, isn't it very sci-fi? "

Ha ha ha ha ha... Hearing his question, everyone applauded after a burst of chuckles. While applauding, they also lamented the fantastic ideas of the scientists.

After Wu Hao waited for everyone to calm down, he said with a smile: "These three technologies are not opposed to each other, on the contrary, they are suitable for different disabled people.

For example, the third technique can be used for patients with half cut-off and partial damage. In this way, not only can the cost be greatly reduced, but also the movement ability of the limbs can be restored to the greatest extent.

As for the second technology, it can be used for disabled patients with total amputation. Such patients cannot be connected surgically, so this technology needs to be used for external connection.

As for the first type, it is applied to those patients with severe paralysis, or patients with spinal injuries.

Of course, this classification cannot be generalized, and you still have to refer to the actual situation before making a choice. "

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