After a rough introduction to the technology, Wu Hao looked at the excited and thoughtful experts who changed their tone and smiled: "This is a process from easy to difficult. You cannot just print directly as soon as you get started."
It is unrealistic to take out a heart, a liver, or even a pair of lungs.
So in our plan, we will give priority to printing some organ tissues with single function and simple structure. For example, skin tissue, such as cornea, and some human bones, blood vessels, intestines, etc.
Only after we have thoroughly mastered this technology will we try to print some complex organs and tissues.
This involves not only medical technology issues, but also many legal, regulatory and ethical issues. So we also hope that in the future, we can promote the clarification of laws and regulations in this regard, and will also try to
Alleviate public concerns and worries in this regard.
In short, this matter has just begun, and we still have a lot to do.”
Hearing his words, Mr. Cheng nodded and said: "I'm very happy that you can think so. Only by being calm and down-to-earth in technology can we achieve results. Rather than being like those of some corporate scientific research unit personnel, they just do whatever they want right away.
, how about this, it is always difficult to achieve results.
Starting with skin and cornea is indeed a good direction. Currently, both in the field of skin grafting treatment and cornea transplantation, there are great development prospects. And from your business perspective, these two aspects
It also has huge market development value, which is great!”
Academician Yun Zhihong nodded and said: "Currently, a large number of blind patients in China are in urgent need of corneal transplantation, but there are very few corneal donors, which can only meet the needs of a small number of people.
Although the development of artificial corneas has been carried out domestically and internationally over the years, the progress has not been smooth. So far, those who have announced great technological progress in these fields are only laboratory data and have not yet been released.
This model can already be used in clinical trials, let alone on the market.
So if you can print out artificial corneas, you will be able to restore sight to countless blind patients.
Moreover, this aspect does not conflict with your smart bionic electronic prosthetic eyes, and the patients they have to face are also different. It can be said that as long as you can remove the cornea, you will have the final say in the world of ophthalmic technology in the future.
This will not only win you a huge reputation, but also gain huge economic benefits."
After Academician Yun Zhihong finished speaking, Professor Zheng continued: "The same goes for skin. Currently, for some patients with severe fevers and some patients with skin damage, the best way to treat them is skin grafting.
Traditional skin grafting surgery is either allogeneic skin grafting or body skin grafting. Allogeneic skin grafting refers to removing the donor's skin and then transplanting it to the patient who needs it. There is a movie and TV series that seems to be about this.
The story tells about a patient who transplanted another person's face, which caused a series of ethical and legal issues.
At present, this kind of allogeneic skin transplantation technology is rarely used, and it is only used in large-scale skin injuries, facial repair, etc. Moreover, this kind of allogeneic skin transplantation will have a large rejection reaction after surgery, and long-term anti-rejection medication is required.
Medication maintenance will have a great impact on the patient himself.
At present, the most widely used and mature technology is body skin grafting technology. Simply put, a piece of skin is taken from other parts of the body. This part is usually located on the thigh or buttocks, and some are also selected on the back.
The harvested skin is then applied to the areas that need repair. This is generally done on obvious areas such as the face.”
"Using butt meat to trim your face?"
Someone who was not present shouted something, which immediately caused everyone to burst into laughter.
Professor Zheng was not angry, but smiled and pressed his hands and said: "This is very unprofessional!
However, this is a fact. Although it doesn’t sound good, butt skin is the best choice to use to repair the patient’s facial trauma.
First of all, everyone should know that the buttocks are not exposed to the sun all year round and are wrapped by pants, so the skin on the buttocks is very delicate. Its degree of tenderness may be more delicate and supple than the facial skin of some middle-aged and elderly people who have been baptized by time.
In addition, since this is the patient's own skin, it has a high degree of fusion after implantation, is easy to recover, and does not produce rejection reactions, so it can be said to be the best choice.
Finally, in terms of privacy, the buttocks are covered by pants all year round, and no one has the habit of taking off their pants every day to see others. Therefore, no one will know that you are missing a piece of skin on your buttocks, which is conducive to maintaining the privacy of the patient.
"
After explaining, Professor Zheng promptly changed the topic and said: "To go a step further, although the body prosthesis has many benefits, it is limited by the area and location. In fact, it can be used for a small amount of skin repair. It is impossible for us to repair the buttocks and thighs.
It is obviously unrealistic to pluck out all the skin and then repair other areas.
Especially for patients with large-scale skin damage, especially large-scale skin burns, it is obviously unrealistic to rely on their own skin for transplantation, and allogeneic transplantation is too large and unrealistic. Therefore, the conventional method now is to use artificial skin.
, in fact, it is something similar to biofilm, which is used to cover and wrap the patient's traumatized parts to avoid infection and promote the growth and recovery of the patient's skin.
But even so, it is difficult to treat patients with such extensive burns and skin injuries, and many patients may not be able to survive. Even if they survive, they will face large-scale injuries to the body, especially scars after healing.
, which will bring great inconvenience and difficulty to the patient's psychology and daily life.
So in the end, these patients may choose to undergo multiple plastic surgeries and skin grafting surgeries if they have the conditions. Or they may not be able to bear the psychological trauma and social pressure, and eventually go to extremes and choose to end their lives.
If you can print artificial skin, then we doctors will not have to be helpless when facing these patients in the future, and we will no longer have to take flesh from the patient's buttocks to repair the patient's face.
Patients with large-scale skin damage no longer need to suffer from psychological and life pressure. They no longer have to cover themselves tightly in the summer, and dare not take off their clothes even if they are sweating profusely.
Not only the patients themselves, this technology also saves their families, and even some professions and heroes. Especially among the firefighters, there are many heroes who were injured while fighting fires, and they are also suffering from this kind of pain and misfortune.
.
This technology of yours has undoubtedly allowed them to see joy again and have a chance of rebirth, so you must work harder."