Question? He didn't dare. He had guessed the surgeon's mind wrong once before. The surgeon didn't immediately say Xie was not good enough.
It cannot be said that no one can understand Xie's mind. At least there is a person like Pan Shihua who is best at understanding Xie's thinking.
"I understand. Yingying means that if we forcibly pull the two close points together, the tension will probably explode. But after all, they are on the same plane, so we can close them together first to reduce the tension at the two close points before pulling them." said Pan Shihua.
It’s over. After classmate Pan finished speaking, a lot of people found that they couldn’t understand what he meant anymore.
Seeing this, Xie Wanying hurriedly added two more words to help Pan: "Surgical suturing is like sewing technology. You have to convert a three-dimensional organ into a two-dimensional plane to sew it. All suturing planes can be simply regarded as cloth with tension surfaces. The three-dimensional organ surface is just a piece of cloth wrapped in a circle."
Oh. The medical students who were attending the lecture suddenly realized how big the gap was between themselves and the top students.
Now we need to use all the tension of the "cloth" on the surface of the heart to reduce the tension of the two points in the middle. How to do it? You can pull it by relying on the two fulcrums of the superior and inferior vena cava. The superior vena cava will completely block the operation line of sight. Choose the inferior vena cava as the fulcrum and sew a stitch and pull it to see how much it can be pulled to make up for the gap.
Pay special attention when pulling. What should you pay attention to? You also need to pay special attention to the maximum tension that the suture can withstand. This corresponds to the suture tension principle that I spent some time talking about earlier. Otherwise, after the tension is spread out, even if the anastomosis can be sutured, the pressure on the blood vessels at the entrance and exit of the heart is extremely high. Once the suture tension limit is exceeded, the suture will easily break later.
It seems that the key point of Xie’s suggestion is actually the calculation of the maximum tension of the two sutures.
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How to measure? In math problems, do you just give the maximum value? No, you can calculate it based on the basic data. The same principle applies here. You don't need to really stretch the thread to check the limit value. You just need to measure other data to infer the upper limit of the tension of the two sutures and find the upper limit value suitable for the surgical technique.
Theoretically, it makes sense and seems simple. People around me can actually understand half of it. It's good enough. Then, when they are asked to calculate, everyone thinks that their brains will become a mess.
Student Wei immediately surrendered in his heart, it was too difficult, he would rather continue to be a poor student.
Doctor Cheng Yuchen was dumbfounded: As a senior, he could not use any adjectives to describe this student's brain, because he could not imagine how this person's brain worked.
The other medical students standing in the operating room included Dai Nanhui. When they were at a loss, they could only guess: this classmate was probably trying to come up with a random math answer.
Duan Sanbao thought that his two eldest cousins liked to touch Xie's brain, which meant that the eldest brother of the Cao family never thought that Xie would make random guesses and talk nonsense. There were many people in the Cao family who were good at neurosurgery and had a good understanding of the heights that the human brain could reach.
Not surprisingly, the little vortex in Cao Zhao's dark eyes shone brightly under the surgical magnifying glass. He looked at the student's brain and said, "You sew this stitch, faster." After that, he instructed the nurse to give her the instrument.
When others saw this, they gasped: Boss, are you slapping yourself in the face by asking Xie to verify it directly?
This man is not a god but a devil. Wei and Pan checked it again in their hearts.
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