Visible light cannot penetrate the human body in 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 one hundred billionths of the space. In the remaining vast positions, electrons can move freely.

Although the human body is a living organism, its root is that it is composed of atoms and then forms cells, tissues and organs. Thinking about this, the density of the human body's tissue is like a large net. For plankton in water, visible light should be free of obstacles.

So, why is the reality that visible light cannot pass through?

It turns out that because the visible light has a long wavelength, it is very easy to be scattered and absorbed when passing through the human body, which is blocked.

However, if there is a way to allow visible light to pass through the human body, what will happen? The answer will be shocking. These visible lights will carry out a large amount of information when passing through the human body due to scattering.

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

This is why Liu Weichang was almost scared to the point of being able to sit still when he saw the detection principle. After explaining the international situation, Liu Weichang couldn't help but sigh, "It's just that because this technology is extremely difficult, the progress is very bumpy at present."

"So, Director Cheng, you just told me that you made such a device by the way. It would be nice if I fell off the stool without being shocked."

"Now, any hospital cannot do without excellent testing equipment. The non-invasive testing method of image imaging is the top priority. Our affiliated hospital of the Medical College spends a lot of support every year on the procurement and maintenance of medical imaging equipment."

"As far as the entire medical device market is concerned, the market size of medical imaging equipment accounts for more than 20%. Just these data can imagine an important component of an excellent set of medical imaging equipment. However, the current situation is that the imaging detection equipment of most hospitals across the country is basically from abroad."

"To be honest, our country has developed very well in many fields over the years, but the medical device field has started relatively late. Therefore, although the industrial layout has been in many years, there is still a big gap in technology to catch up with the products of top foreign manufacturers."

"So, treating patients, although we know that they are expensive, and even though we know that they are constantly squeezing the R&D capabilities of relevant companies in our country, we still grit our teeth."

"It's not that we don't support domestic products, but it's because seeing a doctor is different from other things. It's just a little bit short of it, and it's enough to use it. Once there is a problem with medical testing equipment, it will cause misdiagnosis or inaccuracy, which will affect the quality of life of the patient at a minor level. In severe cases, it will be a price for life. We cannot afford this responsibility, and no one can bear it."

"On weekdays, when Chinese people get sick, they can just make a movie, the few dozens or hundreds of them are the most expensive. What's the price? Is the movie itself expensive?"

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

"So, Director Cheng, you have to tell me how much this device can do?" Liu Weichang's breathing became rapid.

"By the way, there is a index of visible light medical testing equipment in my email address. Please check and compare it before talking about it." Liu Weichang quickly opened the email address in a hurry, found a pure English email, clicked to open, and then double-clicked to open the PDF in the attachment.

A few minutes later, Cheng Xiang looked up.

"How is it? How much is the level of the visible light detection equipment index here?" Liu Weichang asked very nervously, "30%, is there any?" Liu Weichang put forward a bold guess that as long as he has 30% of the capabilities, he can be much stronger than the mainstream detection equipment such as nuclear magnetic resonance, DR, CT.

At that time, as long as the equipment can pass the basic testing process for medical device quality, their medical school will definitely support it with full support and immediately use it in the affiliated hospitals of the college to start clinical testing.

If it is confirmed to be easy to use, they will speed up the spread and completely get rid of the original equipment.

In this way, their hospitals can not only reduce the burden on patients in terms of price, but also greatly improve the ability to diagnose diseases, but also greatly reduce the hospital's procurement funds for medical imaging equipment, and thus, more funds will be invested in more medically meaningful things.

What is killing multiple goals in one go? That's it.

Cheng Xiang's expression was strange when he heard Liu Weichang's problem.

How could Liu Weichang, who stared at Cheng Xiang, not be able to see this expression?

Liu Weichang was stunned at first, then reacted, and then felt a little disappointed. Thinking about it, he felt that the request he made was a bit too much. After all, this was something Cheng Xiang made by the way. How strong could it be?

Even the 30% level of the truly visible light detection equipment index is very high.

There are so many international medical device manufacturers and so many professional R&D personnel who are struggling to do this.

Why.

Liu Weichang sighed and shook his head. He was probably fascinated by Cheng Xiang's recent dazzling aura. If it were someone else, he would not have been so ruthless.

"Twenty percent?" Liu Weichang thought about it and asked, with a slightly regretful expression. "Although 20 percent is a little less, there are still many advantages. Although the detection ability is similar to the current CT and MRI, a set of equipment can take into account multiple detection capabilities is also a good advantage."

"And the subsequent detection capabilities of visible light detection equipment are even stronger. By then, the physical objects will be released, and all the affiliated hospitals of our medical school will take charge of the clinical testing."

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

However, Cheng Xiang shook his head after hearing this.

Now, Liu Weichang was a little embarrassed. Although Cheng Xiang had only stated that he needed his own help when designing a set of testing equipment, how could Liu Weichang not know what he needed to help?

Any medical device, regardless of whether it is launched or not, must require front-line doctors to do clinical testing. Only practice is the only criterion for testing the quality of good and bad. "Is it less than 20%?"

"Director Cheng, I will definitely agree to the clinical testing matter, but 10% of the test capacity is too low, and it is not as good as the mainstream equipment now. After all, the hospital mainly treats diseases and saves people, and time is tight, so the support it can be given may be limited."

Liu Weichang really gave Cheng Xiang a lot of face and also gave his own school the greatest support for his self-development capabilities. If it were someone else, his testing ability was not as good as the equipment used now, and this entry threshold would not be given.

After all, it is a hospital. The doctor's time is very precious and the patient's time is also very precious. But there are not so many opportunities for important tests to be tried and wrong.

After Liu Weichang finished speaking, he finally stopped. Cheng Xiang finally had the opportunity to speak, but he smiled, "Director Liu, you are so anxious."

"Before I had time to speak, you've finished here."

Liu Weichang was stunned when he heard this. When he saw Cheng Xiang's smiling and calm expression, he thought of something. His heartbeat immediately accelerated and his voice trembled a little, "How long?"

Cheng Xiang smiled and shook his head, but Liu Weichang was no longer 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."

"How much does it mean? You still have to wait for the equipment to come out. Rely on Director Liu, you doctors on the front line of service, have the final say."

"Two to three times!" Liu Weichang didn't hear what Cheng Xiang said later, and the words "two to three times" were echoing in his mind.
Chapter completed!