"Although secondary stent implantation can be performed inside a blocked stent, the number of times is limited and the risk is high. Moreover, the inner diameter of the resulting blood vessel will also become smaller. Although it can remain unobstructed, the blood flow will be reduced.
Reduction will also cause chronic insufficient blood supply to the myocardium. And because the channel is too narrow, the probability of blockage here is very high, and the opportunity for stent implantation may be lost."
At this point, Director Tong slid the transparent tablet on his hand and continued to introduce to everyone: "As for heart bypass surgery, it uses the surface blood vessels on the human body or the artificial blood vessels printed by our biological 3D printing.
Implanted into these tubular arteries, just like a bypass, we can use the blood vessels to bypass the stenosis and directly supply blood to the distal blood vessels. This can solve the problem of completely blocked blood vessels that prevent stent implantation.
situation.
Therefore, under normal circumstances, heart bypass surgery will be performed after stent interventional surgery cannot be performed, because this bypass surgery has certain risks, requires a thoracotomy, and is relatively invasive."
At this point, Director Tong changed the topic and said with a smile: "Of course, what I introduced earlier are traditional treatment methods.
And now, with the continuous development of our medical technology, the risks of this kind of surgery can now be reduced to a more controllable level.
Of course, as long as it is surgery, there are risks, let alone this kind of heart surgery. Even with ecmo, we cannot ensure that such surgery is 100% safe."
Speaking of this, Director Tong glanced at Zhang Jun and the others, and then continued: "Now I will introduce three sets of treatment plans to you. Please consider them and make a decision as soon as possible. Because one minute late, the patient will have one more
Considering the risk, the sooner such surgery is performed, the better.
First of all, I won’t go into the conservative treatment plan of stent implantation. I believe everyone has almost understood it.
We mainly introduce these two treatment options that require thoracotomy. The first is the surgical option that combines blood vessel implantation and coronary artery bypass surgery.
We can use traditional stents, biodegradable stents, or nano-stents developed by Haoyu Technology to expand and fix the locations of heart blockages and stenosis in patients.
Then, the artificial blood vessels printed by bio-3D printing are used to perform vascular bypass surgery on the main coronary arteries of the patient's heart, and the artificial blood vessels are used to connect the distal blood vessels, thereby obtaining a double-circuit blood vessel.
In this way, even if one blood vessel is blocked, there is still another blood vessel that can be used, thus ensuring the normal blood flow of the coronary artery network and maintaining the normal blood supply demand of the myocardial tissue.
This kind of surgical plan is relatively mature and has been practiced a lot, so the risks can be controlled to be relatively small, and the patient’s prognosis is ideal and he can return to his normal life.”
After demonstrating it on the big screen, Director Tong continued: "The second plan is more thorough, that is, we can use Haoyu Technology's latest generation bio-3D printer to print out the patient's entire tubular arteries, and then
Perform a complete replacement.
To put it simply, we must first cut off all the main blood vessels and branch blood vessels of the blocked tubular arteries in the patient's heart and then extract them, leaving only the terminal small blood vessels and capillaries.
Then the entire printed tubular arteries are implanted, and then anastomosed with these small blood vessels one by one. In this way, the patient has a brand new set of tubular arteries, and they are very young and active tubular arteries.
It is similar to the blood vessels of a child, which means that it can supply blood to the patient's heart for many years without stenosis or blockage.
And the advantage of this is that the patient does not need to take medication after surgery. Through normal and abundant blood supply, the myocardial tissue can be properly restored, and the heart can gradually return to normal or close to normal levels. This will greatly improve the patient's condition.
After recovery, he will be able to live, work and exercise like normal people."
At this point, Director Tong glanced at Wu Hao, and then said with a smile: "If this were done in the past, such an operation and such a treatment plan would be unbelievable.
When others heard this, they thought it was a fantasy.
However, Haoyu Technology has brought us the necessary conditions to complete such operations and treatment plans, which is bio-3D printing technology and intelligent multi-tentacle medical robots.
First of all, bio-3D printing technology can use bio-3D printers to customize and print the required artificial vascular tissue one-to-one according to the size of the patient's tubular arteries.
This was unbelievable in the past, because in order to perform cardiac bypass surgery on patients, doctors searched for a long time on the human body, and finally found a few blood vessels with complex expressions, and they can still be used.
But now, we no longer have to look for it, nor do we have to cause secondary damage to the human body. We can completely customize and print the required artificial blood vessel tissue according to needs, so as to perform better adaptation and surgery.
In particular, it is possible to print the entire coronary artery main branch vascular network tissue, which was unimaginable before."
At this point, Director Tong glanced at Wu Hao with reverence, and then continued: "The medical multi-tentacle surgical robot gives us the confidence to complete complex operations.
In vascular bypass surgery, vascular anastomosis is a very difficult and delicate operation that needs to be performed under a microscope. To use an analogy, the difficulty of vascular suturing is equivalent to splicing two water pipes together and then using a rope to sew them together.
It must be sealed tightly so that no water inside can escape.
Vascular anastomosis surgery is like this. It needs to sew two blood vessels together and prevent the blood inside from flowing out through the gaps in the blood vessels. Moreover, this is a tubular arterial blood vessel, and the blood pressure itself is relatively high. In addition, the heart is constantly contracting and relaxing. This
There is a pulling force, so the requirements for blood vessel suturing are higher.
Therefore, during bypass surgery, doctors spend a lot of time on vascular anastomosis. It can be said that the success or failure of vascular anastomosis is also related to the success or failure of the entire heart bypass surgery.
In addition, the field of view of thoracotomy surgery is limited, and the time of cardiac surgery must be controlled within a certain time and cannot be delayed for too long, otherwise it will cause some damage to the patient.
Therefore, the general surgery of two or three blood vessel bypass surgery is already very powerful, but now we need to replace the entire main branch of the tubular artery, and there are more than a dozen places where vascular anastomoses need to be performed, which cannot be completed by manpower."