After entering the operating room, Lao he takes the small stone in. Zheng Ren and Su Yun go to change their clothes.

"Boss, are you really going to go to ICU for a few days and nights?" Su Yun asked.

"Yes." Zheng Ren said, "it's better for me to take care of them. Don't go. Although our 912 has strong severe strength, it's a 3D printed lung after all. I don't trust them."

Su Yun's lips moved and wanted to say two words, but he held back at last.

Others went into the operating room to prepare early in the morning. The whole medical team attached great importance to the operation. Even Gao Shaojie offered to help and stop today's tips operation.

This request was rejected by Zheng Ren. Gao Shaojie had to have an operation with Zhou Chunyong. Others went to the outer operating room early in the morning and began to prepare with the innermost hybrid operating room.

It took a week to prepare for the operation, but when it was time to go on stage, Zheng Ren had a feeling of homesickness. After silently changing clothes, Zheng Renhe and Su Yun walked into the operating room.

Director Xu stood at the door of the operating room and saw Zheng Ren come in. He smiled bitterly and said, "boss Zheng, where did you find the itinerant nurse?"

"Ah?" Zheng Ren thought director Xu was going to ask if he could help, but he didn't expect him to ask such a question.

"Advanced nurses abroad." Su Yun was clever and answered directly.

"Not even me." Director Xu complained.

"Er..." Zheng Ren was speechless. "I told her yesterday to try to avoid damaging the sterile environment. Sorry, director Xu."

"Boss Zheng, you won't tour nurses in the future. Do you take people by yourself?" Director Xu said half jokingly and half seriously.

"I don't know." Zheng Ren is also at a loss about this matter.

"Lin Chu said that he was a foreign friend and had a great background." Director Xu asked in a low voice.

"Well, I should be a patient."

Speaking, the three came to the operating room. Maris is preparing all kinds of things for surgery. After a period of training and adaptation in recent days, she is as skilled as 912 local nurses.

Today, Maris wears isolation clothes. After a period of treatment, the fat in her lower body has been removed, and she has regained her proud figure; Or more accurately, it became the way Kerry helped her customize it.

Zheng Ren did a good job in cosmetic surgery. At least he thought that the supermodel was busy in the operating room. He couldn't see that his lower body was like a meat mountain and his upper body was haggard like a skeleton.

"Maris, this is the leader here, director Xu." After Zheng Ren came in, he first introduced to Maris.

Maris turned and asked, "leader? Brother Yun, what's that?"

Su Yun frowned at her question. The atmosphere was a little awkward. Zheng Ren felt that he might as well be a professor with a big mouth. At least the professor is a doctor. He knows the rules of the operating room and will never conflict with the people who manage the operating room.

"Can he come in?" Maris also felt the embarrassment of the atmosphere. She then asked.

"Come in..." Zheng Ren said, "director Xu, do you have time to help?"

"Yes." Director Xu's voice is a little dry. This is the operating room of 912. He has to get permission to enter. How unreasonable! If it weren't for boss Zheng's request, he would be angry.

"Please." Zheng Rendao.

"Zheng, is there anyone else?" Maris asked very seriously and stubbornly, "more people are not conducive to sterility. That's what the book says."

"Dr. Charles will come later, and there's nothing left." Zheng Ren said helplessly.

Zheng Renhe said a word to Xiaoshi and then looked at Lao he.

Lao he was already ready. He nodded and prepared for anesthesia.

"Wait a minute. I'll brush my hands first." Zheng Rendao, "I'll direct this operation from the beginning."

Lao he didn't say anything about boss Zheng's strange request. More than 20 pages of A4 paper were not enough. Boss Zheng had to command from the beginning. He seemed a little too careful.

Sometimes Lao he thinks that boss Zheng is different from others in his kindness to the little patient in front of him.

Zheng Ren strode out to brush his hands and put on his clothes when he came back. The song of good luck had sounded. It was not loud, but more as a background.

Dr. Charles stepped on the operation and began to come to the operating room. Ringer accompanied the doctor and explained the operating room of 912 to him.

Zheng Ren narrowed his eyes and smiled, but didn't talk much with the doctor.

"Radial artery puncture, blood gas analysis, leave a sample first." Zheng Ren put on his clothes and stood in the corner.

Lao he and his assistant start the operation quickly. Su Yun, Lin Yuan and Gu Xiaoran have begun to lay sterile sheets and are ready to do ECMO catheterization.

"Midazolam 1mg, etomidate 0.15 mg / kg, sufentanil 0.15 mg / kg and atracurium CIS benzenesulfonate 0.12 mg / kg." Zheng Ren said in a deep voice.

The dosage of these drugs was discussed with Lao he for a few days, and Zheng Ren tried hundreds of times in the system operating room. They were already familiar with the chest. But Zheng Ren cautiously took over the command of the operation for the first time, and didn't even give up anesthesia.

Lao he began to give medicine. After muscle relaxation, endotracheal intubation was performed, and ventilator was connected for mechanical ventilation. The left double lumen bronchial tube was selected as the endotracheal tube.

Zheng Ren also explained the values of various ventilators, followed by intravenous infusion of propofol 0.02 nag / kg / · min, vecuronium 1ug / kg / · min, and intermittent intravenous injection of sufentanil.

Anesthesia takes effect. Su Yun takes Lin yuanxia ECMO.

The right femoral artery and vein were intubated, and the femoral artery was intubated to the level of common iliac artery with 15 fr catheter; 19 fr catheter was used in femoral vein and intubated to the level of inferior vena cava. All heparin coated membrane lung and pipeline, thermostat, centrifugal pump head and oxygenator are selected.

After catheter placement, bypass was started. The initial flow was 2.5 L · min-1 · m-2 of intermittent cardiac output, which was maintained at more than 30% during bypass.

Seeing that the vital signs of Xiaoshi were stable and the blood oxygen saturation was rising, Zheng Ren began to lay sterile sheets and prepare for the operation.

The operating room was quiet, only the song of good luck was floating.

To prepare for the operation, Zheng Ren stood at the position of the operator and concentrated on recalling the mature operation process. After preparing the electric burn and suction device, he stretched out his hand.

The iodophor gauze held by the hemostatic forceps was patted in Zheng Ren's hand.

Disinfection, incision, take the anterolateral incision of both thorax + sternal transection. The incision passes through the 4th or 5th intercostal space on both sides, from the axillary midline to the sternal margin, and then transects the sternum.

This incision can provide sufficient exposure to the bilateral thorax from the top of the pleura to the diaphragm and the posterior mediastinum, making it easy to free the structures of the two lungs and hilar. Although some people have proposed not to cross the sternum in recent years, Zheng Ren chose the oldest operation after surgical experiments.

Although the damage of this method is a little larger, the operation process is obviously shortened, which is more suitable for small stones.

"Boss, are you nervous?" Su Yun stood opposite Zheng Ren and felt the atmosphere in the operating room was dignified. He asked with a smile.

"OK." Zheng Ren narrowed his eyes and answered with a smile.