Here the focus is on polyamide crepe yarn.

At the beginning, Chen Qi and the others used gauze wetted with saline in Africa.

Because the elasticity of the gauze is not very good, it is often impossible to expand to 9 times, and it is even difficult to expand to 5 times.

So later, Chen Qi and the others had to carefully clamp the tiny skin with a diameter of only 2.8 mm, and put it evenly on the gauze.

After one operation, the eyes and old waist really suffered, they were almost useless, and it took longer, which increased the risk of the operation.

After returning to China, Chen Qi began to look for suitable materials based on the memory of his previous life.

Coincidentally, Yuezhong is the largest textile producing area in the country, and the Textile City in Keqiao Town is also the largest fabric wholesale market in the country, with all kinds of fabrics available.

So Chen Qi went to China Textile City when he was free, looking for the fabrics he needed everywhere.

He is a celebrity in Yuezhong and a major shareholder of China Textile City. Every time he asks for a small piece of fabric, the cloth seller will happily cut it with a pair of scissors and give it to him.

If you change someone else, you will be kicked out long ago. After all, some fabrics and patterns are exclusive, and cutting off others may be to prevent brand theft.

Finally, Chen Qi found two raw materials, "polyamide" and "crepe", and then asked a teacher from the Textile Department of Viet Chung University to weave them into pieces of "fabric" by hand.

Polyamide is a nylon-like material, and crepe is made of silk. The fabric combined with the two has very good tension, and it can be expanded to the extent that Chen Qi is satisfied, which is perfect.

This allowed the "stinky tofu skin grafting" to break through a technical bottleneck and proceed smoothly.

When the crumpled yarn and the tiny skin were rotten and stuck together, Zhu Huoyan and Chen Qi pulled a corner with their hands, and pulled it in four directions evenly.

As the polyamide crepe de chine spreads, the tiny skin particles are evenly and neatly separated, looking like regularly distributed stars.

Several professors outside saw this step, and they already understood Chen Qi's surgical principles, and they started talking about it.

In fact, the principle is similar to that of stamp skin grafting, except that the technical difficulty of stamp skin grafting is low. The pieces of skin are the same size as postage stamps, and it is very simple to place them on the burn wound.

The "stinky tofu skin grafting" has higher requirements, because the normal autologous skin is smaller, so small that you can't see it clearly without reading glasses.

This is suitable for those burn patients with huge burn area and scarce normal skin, and the advantages are even more obvious at a glance.

The professors who watched outside nodded frequently and commented a few words from time to time.

At this point, the Etsuchu team only needed to cover the wound with the expanded polyamide crepe to complete the operation.

But Chen Qi found another inspiration from Dongshan Hospital.

Historically, Dongshan Hospital would invent a brand new skin grafting technique in the 1990s, called "big sheets of allogeneic skin with holes inserted into small autologous skin grafts".

The principle of this operation is to first find a relatively large allogeneic skin, and make N small holes in the large allogeneic skin, then insert the patient's own skin microchips into the holes, and then transplant the large skin Cover the burn.

While the allogeneic skin is gradually rejected, the small autologous skin continues to grow until it gradually covers the entire wound.

This principle is actually the same as that of stinky tofu skin grafting, or most skin grafting.

The advantage of "large sheet of allogeneic skin pierced with small autologous skin graft embedded in skin graft" is that it can effectively solve the problem of insufficient autologous skin source, and at the same time protect the entire wound from exposure.

But there is also a disadvantage, that is, you need a whole skin of different body, and the cost is very high, because you need to think of a special way to get it, such as... um... Ruoye Riverside...

In addition, the embedding process of the skin graft is more complicated and the operation time is longer.

Chen Qi found inspiration from the skin graft invented by Dongshan Hospital.

Since it is very troublesome to make small holes in the allogeneic skin and fill them with the patient's own skin one by one, then Chen Qi can add another step on the basis of "stinky tofu skin grafting".

That is to do meek skin grafting first, and then cover the whole allogeneic skin on the wound, so that the innermost layer of self-skin can quickly fuse with the wound, so as to avoid the failure of skin grafting due to infection.

This is equivalent to the combination of "meek skin grafting + large allogeneic skin punched with small autologous skin grafts embedded in skin grafting", double insurance treatment, can the effect be poor?

It was the poor Dongshan Hospital's later trump card skin grafting that was cut off by Chen Qi.

In order to disgust Professor Ni Zhihua and Dongshan Hospital, Chen Qi also drilled a few holes in the allogeneic skin for today's operation, and then embedded the leftover skin that was cut from the patient before into the middle of the allogeneic skin, and then covered the patient's wound.

As for where did these huge "alien skins" prepared by Chen Qi come from?

Don't ask, if you ask, it was picked up by the bank of Ruoye River...

Now the doctors of Yuezhong Hospital are performing this operation in front of some of the most authoritative burn specialists in the country. Chen Qi is not afraid of Dongshan Hospital's refusal or plagiarism in the future.

If they dare to copy, Chen Qi dares to broadcast it to them all over the world.

Professor Ni was sitting outside the operating room, and he didn't know that his luck had been taken away unknowingly, and he was cut off.

Unknowingly, Professor Ni looked at his watch, still very surprised:

"Honey, Yuezhong Hospital really only used 10% of the normal skin to cover 80% of the burn wound, and the whole operation only took one and a half hours."

(Some unimportant parts are not covered)

Professor Peng is also replaying the operation just now in his mind, and at this time he is also excitedly clapping the armrest:

"Okay, okay, this surgery has solved two major problems. One is that the skin of a large area of burns is difficult to support and cover the whole body with skin grafting. The other is that the stinky tofu skin grafting is simple and easy to do, and the technical requirements are not high. It is very suitable for promotion. The hospital is amazing."

Professor Wang Qizheng was a little worried. Originally, Haidong Province had the best burn department in the No. 2 Haiyi Hospital, but now it seems that it can't beat Yuezhong Hospital. Should he go to Yuezhong Hospital to work in advance?

Professor Ni Zhihua is cautiously optimistic:

"Don't worry, don't worry, there are still 3 patients who need to be transplanted, let's see if the operation can be successful, and whether the transplanted skin can survive, these are all problems."

Professors Zhu Lianggong and Prof. An Yongchun did not express their opinions, but they touched their chins and recalled the previous operation.

Professor Peng Yongyan suddenly said:

"You said, how about we arrange the National Burns Annual Conference to be held in Vietnam? There are not many chances of four large-area burn patients at the same time. Let colleagues from all over the country come to visit and learn."

Professor Wang Qizheng must help his own people at critical moments, so he nodded quickly:

"Yes, Professor Peng's method is good. Leaders like to work on the spot to solve problems. Our burn society should also learn to teach on the spot. If the four operations of Yuezhong Hospital are successful, then they have created a world first."

Professor Ni Zhihua was obviously not happy, because the National Burns Annual Conference was held in Shanghai, and Dongshan Hospital was the host. He also wanted to show the results of Dongshan Hospital and brag to his colleagues all over the country.

"This is not good, the guest house has already been booked in Shanghai."

As a result, Professor Zhu Lianggong, who was silent before, spoke:

"I also agree to hold the National Burns Annual Conference in Vietnam. Such a good opportunity is in front of us. If the formula and experience of Vietnam and China are successful and can be successfully promoted throughout the country, then our burn surgery in Huaguo will be able to do so." Dominate the world."

Professor An Yongchun also raised his hand in agreement.

4 of the 5 Standing Committee members agreed, and it was useless for Professor Ni to oppose it alone.

Fortunately, the annual medical conference is not as grand as later generations, and there is no sponsorship from drug companies these days. In order to save money, everyone lives in a guest house for meetings, and the meeting venue is often chosen in the conference room of the local hospital.

Shanghai is not far from Yuezhong. It takes a few hours to take the train. It will be not difficult to let the participants temporarily transfer to Yuezhong.

Burn surgery was actually an unpopular subject in the 1980s. Like the Cleft Lip and Palate Society, or the Plastic Surgery Society, which Chen Qi first joined, it was a "primary society".

Why? Because there are fewer patients.

Think about the 1980s, when the common people had just had enough to eat, and a few years earlier they would not even have enough to eat.

When a family encounters burns, the first thought that comes to their mind is to apply soy sauce or dog oil at home, and if they pay attention to it, get some Chinese herbal medicine. Almost no one is sent to the hospital.

There are burn surgery patients in big cities, and the source of the disease is usually from work-related injuries, the kind that are reimbursed by the factory.

Otherwise, the cost of large-scale burns like the three workers of the Yue Steel Plant cost tens of thousands of dollars. In the 1980s, tens of thousands of dollars could be spent to treat burns? is it possible?

In addition, the main patients of burn surgery are troops, and the country still attaches great importance to its own soldiers.

Whether it is the Chongqing formula or the Nanjing formula, they are actually developed by military hospitals, accounting for two-thirds of the mainstream formulas.

So it is the annual meeting of the National Society of Burn Surgery. In fact, not many doctors participated in the meeting. Only 50 doctors came from all over the country.

Few doctors mean that meeting organization is easy, and the boat is small and easy to turn around.

When Professor Peng told Guo Yuanhang Shuji about this proposal, Old Comrade Guo was very excited:

"Okay, no problem. The National Annual Burn Conference will be held in Yuezhong. Our Yuezhong Hospital has sponsored the whole process, and we have covered the accommodation. Our hospital also has ready-made conference rooms. We guarantee that the meeting will go smoothly."

Vietnam Hospital of Traditional Chinese Medicine is rich, and Lao Guo has the confidence to speak.

Chen Qi was delighted when he heard it. He didn't expect that the project he originally wanted to help Yuezhong Hospital generate income actually caught a big fish.

If the National Burn Conference is held in Yuezhong Hospital, this is a free advertisement, and the popularity of the Burn Surgery Department of Yuezhong Hospital will be quickly expanded and more people will know.

If Yuezhong Hospital can become a national key hospital for large-area burns, there will be no shortage of patients, and this will be another big income generator.

The burn department is not the same as endoscopic surgery. The fees for endoscopic surgery are really not high, and the cost of one operation can reach a few hundred yuan.

But burn surgery is different. The equipment and medicines used in a system of rescue are all expensive.

Generations of blood products, bottles of imported medicines, repeated operations, and a burn patient waiting to be discharged from the hospital. Without tens of thousands of yuan, it is impossible to pay.

For example, the medical expenses of the workers of the Yue Steel Plant. So far, the Yue Steel Plant has paid more than 50,000 yuan, and the follow-up treatment will cost a lot.

Of course Yue Steel Works said it was rescuing 3 patients, but in fact they borne the cost of 5 patients, ahem, so a little more...

No wonder hospitals like to develop surgery. No wonder surgery is easy to achieve results and leaders. The reason is that surgery is so **** profitable.

Old Guo saw that Chen Qi agreed, so he proposed:

"Next, you can wait for Song Yanzi and Wang Chuanbing's surgery. After the foreign burn doctors arrive in Yuezhong, we will teach the surgery on site. In addition, Lu Wenjie's condition is more complicated, and necrotic tissue needs to be removed. You have to wait. Do it the day after tomorrow."

"Okay, let's delay it for two days, and then we will show off."

The hospital office and medical department of Vietnam Hospital of Traditional Chinese Medicine also took action immediately, contacting the guest house to arrange the meeting venue.

Vietnam Hospital of Traditional Chinese Medicine has organized several conferences of foreign experts, so organizing a national burn conference is a trivial matter.

In this way, a temporary proposal, the annual meeting of the National Society of Burn Surgery in 1989 was temporarily changed to be held in Yuezhong Hospital.

This action surprised many participating doctors who had already traveled to Shanghai, and they were all puzzled.

Temporarily changing the meeting place is a bit offending, because this year is not only about meeting, many people take advantage of the meeting to travel, and even take their families to travel together.

Greater Shanghai is the most popular tourist destination in the country. These days, people want to go to the Bund, and go to Nanjing Road to buy some sweaters and white rabbit toffee.

The venue of the meeting was changed to Yuezhong. Although this is also a famous historical city, it is a standard countryside compared to Shanghai.

So many people expressed their dissatisfaction:

"Why go to Yuezhong? I won't go without giving a reason!"

"Yes, yes, there is no temporary change of address, Shanghai is so big, is there no place for a meeting?"

"I can say yes, my time is precious, there are many patients waiting, but I don't have time to fool around with you!"

The doctors attending the meeting were all chattering and discussing, and the atmosphere began to become unfriendly.

Those who can participate in the national conference are the directors of major hospitals, even the presidents and the like. These people are not easy to fool and have a big temper.

This made the staff of the organizing committee (mainly Yuezhong Hospital) very anxious. On the contrary, Guo Yuanhang, who went to Shanghai to pick up the patients himself, was not in a hurry at all.

"Professors, teachers, please be quiet and listen to me. I am the secretary of the Yuezhong People's Hospital. I want to explain to you why the National Burn Conference has been temporarily changed to our Yuezhong Hospital."

After all, everyone is a qualified person. After hearing someone explain, they all fell silent.

"Everyone is an expert in the field of burns. Everyone should know that there is no record of successful rescue of a patient with a large area of severe burn if the burn area exceeds 60%. It is the same at home and abroad, right?"

The people below didn't know why, so they didn't say a word, wanting to hear what Shu Ji from Yuezhong Hospital wanted to say.