Chapter 2558 [2558] The Focus Is Here

question? He dare not. He guessed wrongly about the chief surgeon's brain once before. The chief surgeon didn't say thank you classmate right away, just like now.

It cannot be said that everyone will never be able to understand Xie's brain. At least there is Pan Shihua, a person who is best at exploring Xie's thinking, here.

"I understand. What Yingying means is that if two close points are pulled hard, the tension may explode, but they are on the same plane after all, so they can be closed first to reduce the tension of the two close points. Pull it again." Pan Shihua said.

It's over, after classmate Pan finished speaking, a lot of people found that they couldn't understand what he meant.

Seeing this, Xie Wanying hastily added a few sentences for classmate Pan: "Surgical suture is like sewing technology. You have to convert three-dimensional organs into two-dimensional planes to suture. All suture planes can be simply regarded as cloth with a tension surface. Three-dimensional organs The surface is nothing more than a piece of cloth wrapped around it."

oh. The medical students who were watching suddenly realized how big the gap between themselves and Xueba was.

Now it is necessary to use all the tension of the "cloth" on the surface of the heart to reduce the tension at the two middle points. How to do it, you can pull it by the two fulcrums of the superior and inferior vena cava. The superior vena cava will completely block the operation line of sight, so choose the inferior vena cava as the focus point for stitches and pull it to see how much it can be pulled to make up for this gap.

Pay special attention when pulling. What should you pay attention to? Special attention also needs to be paid to the maximum tension the suture can withstand. This corresponds to the principle of suture tension discussed earlier. Otherwise, even if the tension is evened out in this way, even if the anastomosis can be sutured up, but here are the blood vessels at the entrance and exit of the heart, and the pressure is extremely high. Once the tension limit of the suture is exceeded, the suture is also easy to collapse later.

From this point of view, the suggestion made by Xie actually focuses on the calculation of the maximum tension of the two kinds of sutures in the latter sentence.

How to measure? In the mathematics, physics and chemistry problems, if you want to calculate the maximum value, do you directly give the maximum value? No, the basic data will be calculated for you. The same is true here, needless to say, the thread is really broken to check the limit value, you only need to measure other data to calculate the upper limit of the tension of the two sutures, and find the upper limit value suitable for the surgical technique.

It makes sense in theory, it seems to be very simple, and the people around you can actually understand half of it, which is very good. Let them do the math next, and everyone believes that they will become a mess of brains.

Student Wei directly shouted to surrender in his heart, it was too difficult, he would rather continue to be a poor student.

Dr. Cheng Yuchen was dumbfounded: As for this student's brain, his senior can't use any adjectives to describe it, because he couldn't imagine how this person's brain changed.

The other medical students standing in the operating room, including Dai Nanhui, could only guess when they didn't think of it: this student probably wanted to bet on a mathematical answer randomly.

Duan Sanbao thought that his two elder cousins ​​liked to touch classmate Xie's brain very much, which meant that the boss of the Cao family never thought that classmate Xie would guess and talk nonsense. Many of the Cao family are good at neurosurgery, and they have a good understanding of how high the human brain can reach.

Not surprisingly, under the magnifying glass of Cao Zhao's operation, the small swirls in Mo's eyes were shining brightly. Looking at the student's brain, he said, "You can sew this stitch, it will be faster." After finishing speaking, he instructed the nurse to give her the equipment.

Seeing this, the others took a deep breath: Boss, is this going to ask classmate Xie to verify if it's self-defeating?

This man is not a god but a devil. Students Wei and Pan checked again in their hearts.