My biological black technology

Visible light cannot penetrate the human body according to common sense, but why is this?

In terms of volume, photons and electrons belong to the same level. A single atom and atomic nucleus only occupy less than a few hundred billionths of the space. The remaining vast space allows electrons to move freely.

Although the human body is a living thing, it is fundamentally composed of atoms and molecules, which then form cells, tissues and organs. If you think about it this way, the density of human tissue relative to the volume of photons is like a big net. For plankton in the water, there should be no obstacle for visible light to pass through.

So why is it that visible light cannot pass through?

It turns out that because visible light has a longer wavelength, it is easily scattered and absorbed when passing through the human body, and is therefore blocked.

But what if there was a way to let visible light pass through the human body? The answer will be shocking. Due to scattering, these visible lights will carry out a large amount of information when passing through the human body.

This is the fundamental reason for the powerful detection power of visible light detection equipment.

This is why Liu Weichang was so scared when he saw the detection principle that he could hardly sit still. After explaining the international status quo, Liu Weichang couldn't help but sigh, "It's just that because this technology is extremely difficult, the current progress is very bumpy. .”

"So, Director Cheng, you just told me that you made such a device by the way. It's good that I didn't fall off the stool in shock."

"Nowadays, no hospital can do without excellent testing equipment, and non-invasive testing methods such as image imaging are the top priority. Our affiliated hospital of the medical school spends an annual purchase and maintenance of medical imaging equipment, which is That’s quite a lot of support.”

"When zooming into the entire medical device market, the market size of medical imaging equipment accounts for more than 20%. Just from these data, you can imagine the important weight of a set of excellent medical imaging equipment. However, the current situation is that the current situation in the country is The imaging testing equipment in some hospitals basically comes from abroad."

"To be honest, I feel ashamed. Our country has developed very well in many fields over the years. However, the field of medical devices started relatively late after all. Therefore, although the industrial layout has been in place for many years, we still have to catch up or even surpass it in technology. There is still a big gap between the products of the top foreign manufacturers.”

"So, when it comes to treating patients, even though we know they are expensive and we know they are using various strategies to continuously squeeze the R\u0026D capabilities of relevant companies in our country, we still bite the bullet and use them."

"It's not that we don't support domestic production, it's because medical treatment is different from others. If it's just a little bit close, it will be used in the future. Once there is a problem with the medical testing equipment, it will cause misdiagnosis or inaccuracy, which will at least affect the patient's quality of life. To be more serious, it costs one life. We cannot bear this responsibility, and no one can bear it."

"On weekdays, when Chinese people are sick, they can just shoot a movie, ranging from dozens to hundreds or even thousands. Why is it so expensive? Is the film itself really expensive?"

"No, a large part of this money has been earned by these foreign medical device manufacturers."

"So, Director Cheng, you have to tell me, how far can this equipment go?" Liu Weichang's breathing became rapid.

"By the way, I happen to have a copy of various indicators of visible light medical testing equipment in my mailbox. Please take a look and compare it." Liu Weichang hurriedly opened the mailbox, found a pure English email, clicked to open it, and then double-clicked to open the attachment. PDF in .

A few minutes later, Cheng Xiang looked up.

"How about it? How many percent of the indicators of the visible light detection equipment here can be achieved?" Liu Weichang asked very nervously, "30%, is it possible?" Liu Weichang made a guess that he thought was bold. As long as he has 30% of the ability, he can achieve it. It is much better than the current mainstream nuclear magnetic resonance, DR, CT and other testing equipment.

By then, as long as the equipment can pass the basic medical device quality testing process, their medical school will give full support and will immediately use it in the school's affiliated hospital to start clinical testing.

If it is determined to be useful, they will accelerate the rollout and completely get rid of the original equipment.

In this way, their hospital can not only reduce the price burden on patients, but also greatly improve the ability to diagnose diseases. It can also significantly reduce the hospital's purchase funds for medical imaging equipment, thus allowing more funds to be invested in more medically meaningful projects. on things.

What is multi-purpose? This is.

Cheng Xiang had a strange expression when he heard Liu Weichang's question.

How could Liu Weichang, who was staring at Cheng Xiang, fail to see such an expression.

Liu Weichang was stunned for a moment, then realized what he was doing, and then felt a little disappointed. Thinking about it again, he felt that his request seemed a bit excessive. After all, this was something Cheng Xiang made by the way. How strong could it be?

Even the 30% level of real visible light detection equipment indicators is still a very high requirement.

So many major international medical device manufacturers and so many professional R\u0026D personnel are struggling with this matter.

Why.

Liu Weichang sighed secretly and shook his head. He was probably dazzled by Cheng Xiang's recent dazzling aura. If it were anyone else, he would not be so at a loss.

"Twenty percent?" Liu Weichang asked after thinking for a while, with a slightly regretful expression, "Twenty percent, although it is a little less, there are still many merits. Although the detection capabilities are similar to those of current CT and MRI, but... It is also a good advantage that one set of equipment can take into account multiple detection capabilities.”

"And the visible light detection equipment has greater potential for subsequent detection capabilities. When the physical objects come out, our hospital affiliated with the Medical College will handle all the clinical testing."

Liu Weichang said slowly, but the initial excitement of seeing the visible light detection equipment has gradually subsided.

However, Cheng Xiang still shook his head after hearing this.

Now, Liu Weichang was in a bit of a dilemma. Although Cheng Xiang had previously only stated that he needed help in designing a set of testing equipment, how could Liu Weichang not know what kind of help he needed.

Any medical device, whether it is on the market or not, will definitely require front-line doctors to conduct clinical testing. Only practice is the only criterion for testing whether it is good or bad. "Isn't it less than 20%?"

"Director Cheng, I will definitely agree to the clinical testing. However, at the 10% level, this testing capability is too low and is not as good as the current mainstream equipment. After all, the hospital mainly treats diseases and saves people, and time is tight, so we can provide Support may be limited."

Liu Weichang really gave Cheng Xiang a lot of face, and also gave his school the greatest support for its self-research capabilities. If it were anyone else, the detection capabilities would not be as good as the equipment we are using now, and we would not even have this access threshold.

After all, it is a hospital. Doctors' time is very precious, and patients' time is also very precious, but there are not so many opportunities for trial and error with important tests.

Liu Weichang finally stopped after speaking, and Cheng Xiang finally had a chance to speak, but he smiled at this time, "Director Liu, you are too impatient."

"Before I even had a chance to speak, you started talking all the way here."

Liu Weichang was stunned for a moment, then looked at Cheng Xiang's smiling, calm expression, and thought of something. His heartbeat immediately accelerated and his voice trembled a little, "How many percent?"

Cheng Xiang shook his head with a smile, but Liu Weichang didn't busy guessing this time. Under Liu Weichang's nervous attention, Cheng Xiang stood up in front of the computer desk, "To be precise, it's not a few percent, it should be two to three times. .”

"The specific number still has to wait until the equipment comes out. I rely on Director Liu and your frontline doctors to have the final say."

"Two to three times!" Liu Weichang didn't hear what Cheng Xiang said at all, and the words two to three times echoed in his mind.

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