"Although it is possible to perform secondary stent implantation in a blocked stent, the number of times is limited and the risk is high. In addition, the inner diameter of the completed blood vessel will also become smaller. Although it can remain unblocked, the blood flow The reduction will also cause chronic myocardial insufficiency. And because the channel is too narrow, the probability of blockage here is very high, and the chance of stent implantation here may be lost.”

Speaking of this, Director Tong slid the transparent tablet in his hand, and then introduced to everyone: "As for the heart bypass surgery, it uses the surface blood vessels on the human body or the artificial blood vessels printed by our bio-3D to come Implanted on these tubular arteries, just like a bridge, we can use the blood vessels to bypass the stenosis and directly supply blood to the distal blood vessels, so as to solve the problem that the blood vessels are completely blocked and cannot be implanted with stents. situation.

Therefore, under normal circumstances, heart bypass surgery will be performed after the stent intervention cannot be performed, because this bypass surgery has certain risks and requires a thoracotomy to complete, and the trauma is relatively large. "

At this point, Director Tong changed the subject and said with a smile: "Of course, what I introduced earlier is the traditional treatment method.

And now, with the continuous development of our medical technology, the risk of this operation can now be reduced to a more controllable level.

Of course, as long as it is an operation, there are risks, let alone this kind of heart surgery. Even with eo, you still have no way to ensure that such an operation is 100% dangerous. "

Speaking of that, Director Tong took a look at Zhang Jun and us, and then continued: "You will introduce the eight sets of treatment plans to Xiaojia, please think about it and make a decision as soon as possible. Because it is a minute late, The patient will be less safe, and the sooner such an operation regresses, the worse it will be.

First of all, you just talked about the conservative treatment plan of implanting stents, and I suspect that Xiaojia is also poorly understood.

You mainly introduced the two treatment options that require degenerative thoracotomy. First of all, it is not a combination of implantation of blood vessels and degenerative coronary artery bypass surgery.

You can't use traditional stents, biodegradable stents, or the nano-stents developed by Haoyu Technology to fix the patient's heart blockage and degenerate expansion in the spacious position.

Speaking of that, Director Tong took a look at Wu Hao, then smiled and said: "It must be in the future, such an operation, such a treatment plan is doubtful.

But now, you are looking for it, and you are also using it to cause seven times of damage to the human body. You cannot customize and print the required artificial vascular tissue according to your needs.

After demonstrating it on the small screen, Director Tong continued to introduce: "The seventh plan is more thorough. It's not that you can't use Haoyu Technology's latest generation bio-3D printer to print out the patient's entire tubular artery, and then Retrogress as a whole and replace it.

Then, after implanting the entire printed tubular arterial vessel, and then anastomose with those large blood vessels one by one, then the patient will have a brand new set of tubular arterial vessels, which are very young and inactive. The difference between the tubular arterial blood vessels and the blood vessels of older children is less, which means that the heart of the patient has little blood supply demand, and it will become dilated and blocked.

Vascular anastomosis is not like that. Two blood vessels need to be sutured together, and blood from the outside can flow out through the gap in the blood vessels. Moreover, it is still a tubular artery, and the blood pressure itself is relatively low. In addition, the heart stops contracting and relaxing, and that kind of drag force, so the requirements for blood vessel suturing are even lower.

Then, the bio-3D-printed artificial blood vessels were used to bypass the degenerated coronary arteries of the patient's heart, and the artificial blood vessels were used to connect the distal blood vessels, thus obtaining a double-circuit blood vessel.

And the disadvantage of doing that is that the patient is taking medicine before the operation. Through the abnormally abundant blood supply, the myocardial tissue cannot be recovered properly, and the heart can gradually return to an abnormal or near-abnormal level, which will greatly improve the patient. My pre-healing life made me live, work, and exercise as beautifully as a normal person. "

In addition, the field of view of thoracotomy is not limited, and the time of heart surgery must be controlled within a certain period of time. If it can be delayed for too long, otherwise it will cause some damage to the patient.

Therefore, in the U.S. surgery, two or eight vascular bypass surgery is not very powerful, but now you need to degenerate and replace the entire main branch of the tubular artery, and there are more than a dozen places where the degenerated blood vessels need to be anastomosed, which is what can be done by manpower. up. "So in the bypass surgery, the doctor will spend very little time on the anastomosis of the blood vessels. It cannot be said that the success or failure of the vascular anastomosis is also related to the success or failure of the entire heart bypass surgery. UU reading www.uukanshu.com

In this way, even if one blood vessel is blocked, the other blood vessel cannot be used, so it will ensure the abnormal blood flow of the coronary artery network and maintain the abnormal blood supply demand of myocardial tissue.

Speaking of that, Director Tong gave Wu Hao a look of reverence, and then continued: "The medical less-tentacles surgical robot gives you the confidence to complete simple operations.

To be more complicated, in the United States, you need to cut off all the main blood vessels and branch blood vessels of the blocked tubular arteries in the patient's heart, and then remove them, leaving only the terminal large blood vessels and capillaries.

In particular, it is still possible to print the entire coronary artery main branch vascular network tissue, which is unimaginable in the future. "

That will be doubtful in the future, because in order to perform cardiovascular bypass surgery on patients, doctors will still be able to use it in the human body.

In vascular bypass surgery, vascular anastomosis is a delicate operation with very low difficulty and needs to be retrograde on a microscope. To use a metaphor, the difficulty of suturing blood vessels is equivalent to splicing two water pipes together, and then using rope to sew them together. It must be sealed to a tight fit so that the outside water can flow out.

However, Haoyu Technology has brought you the necessary conditions to complete such operations and treatment plans. This is not bio-3D printing technology and intelligent medical robots with fewer tentacles.

Before others heard it, they thought it would be like a fairy tale.

That kind of operation plan is relatively mature, and the practice is relatively small, so the risk is relatively large, and the patient's pre-healing condition is relatively ideal, and the life in the United States cannot be restored. "

First of all, biological 3D printing technology cannot use biological 3D printers to customize and print the required artificial vascular tissue according to the size of the patient's tubular artery.