Military Technology

"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 complete blockage of the blood vessels and the inability to implant the stent. situation.

Therefore, under normal circumstances, cardiac 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 eo, you can't ensure that such surgery is 100% dangerous. "

Having said that, Director Tong glanced at Zhang Jun and us, and then continued: "You will introduce the eight sets of treatment plans to me. Please consider them and make a decision as soon as possible. Because it is one minute late, The patient will be less safe, and the sooner such surgery is reversed, the worse it will be.

First of all, you just talked about the conservative treatment plan of stent implantation, and I suspect that many people don’t know much about it.

You mainly introduce the two treatment options that require degenerative thoracotomy. The first is not the surgical option that combines vascular implantation and degenerative coronary artery bypass surgery.

You cannot use traditional stents, biodegradable stents, or nano-stents developed by Haoyu Technology to fix the degenerative expansion of patients with heart blockages and spacious locations.

Speaking of that, Director Tong glanced at Wu Hao, and then said with a smile: "It must be in the future, such an operation and such a treatment plan are doubtful.

But now, you have found and used it to cause damage to the human body seven times. You are completely unable to customize and print the required artificial blood vessel tissue according to your needs, thus regressing or worse, fitting and surgery.

After demonstrating it on a small screen, Director Tong continued: "The seventh plan is more thorough. It doesn't mean that you can't use Haoyu Technology's latest generation bio-3D printer to print out the patient's entire tubular arteries, and then Front regression overall replacement. New

Then, the entire printed tubular arteries are implanted, and then anastomized with those large blood vessels one by one. In this way, the patient has a brand new set of tubular arteries, and they are very young and inactive. Tubular arterial blood vessels are smaller than those of older children, which means that the patient's heart has little blood supply demand and may become enlarged and clogged.

Vascular anastomosis surgery is not like that. It needs to sew two blood vessels together and allow the outside blood to flow out through the gaps in the blood vessels. Moreover, they are still tubular arteries, and the blood pressure itself is relatively low. In addition, the heart's systolic and diastolic forces are pulling force, so the requirements for blood vessel suturing are even lower. However, bio-3D printed artificial blood vessels are currently being used to perform degenerative 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.

And the disadvantage of this is that the patient takes medicine before the operation. The abnormally abundant blood supply will not allow the myocardial tissue to recover properly, and the heart can gradually return to an abnormal or close to abnormal level, which will greatly improve the patient. The pre-healing life allowed me to live, work and exercise in the same way as normal people. "

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

Therefore, the two-eight-vessel bypass surgery performed in the United States is not very powerful, but now you need to regenerate and replace the entire main branch of the tubular artery. There are more than a dozen places where the regenerated blood vessels need to be anastomotic, which is something that can be completed manually. . "So during bypass surgery, doctors spend very little time on vascular anastomosis. It cannot 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 this way, even if one blood vessel is blocked, the other blood vessel will not be unavailable, thus ensuring abnormal blood flow in the coronary artery network and maintaining the normal blood supply demand of the myocardial tissue.

Having said that, Director Tong glanced at Wu Hao with reverence, and then continued: "As for the medical surgical robot with few tentacles, it gives you the confidence to complete simple operations.

To put it simply, in the United States, you 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 withdraw them, leaving only the terminal large blood vessels and capillaries.

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

I dare not doubt that in the future, because in order to perform cardiovascular bypass surgery on patients, doctors will still be able to use it on the human body.

In vascular bypass surgery, the vascular anastomosis is a very delicate and delicate procedure that requires microscopic regression. To use an analogy, the difficulty of suturing blood vessels is equivalent to splicing two water pipes together, and then using a rope to sew them together. They must be sealed tightly to allow the water outside to flow out.

But Haoyu Technology has brought you the necessary conditions to complete such operations and treatment plans. This is not bio-3D printing technology and intelligent less-tentacled medical robots.

Before others heard it, they thought it was a fantasy.

That kind of surgical plan is more mature and less practiced, so the risk cannot be controlled. Moreover, the patient's pre-healing condition is relatively ideal and cannot return to a beautiful life. "

First of all, bio-3D printing technology cannot 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. Remember the website address of this website, www. Biquxu． Com for easy reading next time, or enter " " in Baidu to enter this site