"Professor Chu, what kind of examination should I do before the operation?" asked Zhou Guohui.

"Before the operation, the head scan images were performed using the SIGNA Pioneer 3.0T magnetic resonance imaging system, and the scanned images were imported into the preoperative planning system, and the surgical targets were planned using the surgical planning system. There is no special preparation, and the key point lies in the selection of target coordinates. ”

Zhou Guohui knew what Chu Zhixi said, but in neurosurgery, the slightest mistake often happens. There hasn't been much research on the brain, and neurosurgery was off-limits a few decades ago.

Research on the brain has only begun to develop rapidly in the last 2 to 30 years.

Chu Zhixi said it simply, but the operation was not like that, she vaguely passed the most difficult steps, but Zhou Guohui didn't ask in detail, but concentrated on Chu Zhixi's operation.

"The patient was first anesthetized with 2% lidocaine, a standard Leksell stereotactic head frame was fitted, and a CT scan of the head was performed after fixation, and the scanned images were fused into the preoperative planning system to calculate the target parameters. Part of what my brother is doing now is to modify the preoperative planning system to automatically determine the coordinates of the target. ”

"......" Zhou Guohui knew that his guess was right.

The meaning of what Chu Zhixi said is very simple, the path can be calculated by computer when a vegetative person wakes up and even Alzheimer's disease after that. After maturity, there is no need for manual operation at all, and the computer can complete it accurately.

This is already similar to the black technology of the future world.

"Let's say we've chosen the coordinates of the target, let's do the surgery. The new system will specify the needle insertion route, so just do it. In fact, my brother said that the robot operation is better, because the robot only follows a fixed program and has no self-awareness, and the chance of problems is much smaller. ”

"However, there seems to be no discussion of this aspect in the domestic medical law, and the medical law needs to be revised...... My brother said that it was difficult, and he had to wait for the academic community to accept it and the society to accept it. Optimistically, it will be at least 10 years away. ”

"Make a straight or arc incision of about 4-5cm on the scalp of the puncture point path. I prefer a curved incision, but I recommend that you opt for a slightly longer straight incision. ”

Watching Chu Zhixi fix the head with the Leksell stereotactic headframe, and then modify the positioning, Zhou Guohui knew that the angle selection of the Leksell stereotactic headframe was the result of calculation, and a little error would lead to fatal damage.

Chu Zhixi's operation was very stable and gentle.

Leksell fixed the head with a stereotactic head frame without repeatedly adjusting the angle and direction, then took a scalpel and made an arc incision in the model.

This was followed by blunt dissociation, electrocauterization to stop bleeding, and the anatomical hierarchy was clear, and soon the position of the skull was reached.

"After exposing the patient's skull, a 14mm hole is drilled into the skull. You need to understand this step well, and you need to understand the feel. Chu Zhixi said.

"Is it a sense of breaking the void?"

"Well, it's like doing a cerebrospinal fluid puncture, and there is a sense of prick hollowness. Our hospital has 3D printed models, and you have time to practice repeatedly. This step must be made to ensure that nothing goes wrong, otherwise you will enter it all at once, and your brain will collapse all over the wall. ”

"......" Zhou Guohui smacked his tongue again and again when he heard Chu Zhixi's description.

This tone of speech is not like what Chu Zhixi said, but like Wu Mian's way of speaking. It is estimated that when Wu Mian taught Chu Zhixi to have surgery, he told her that, telling her to be cautious.

"Professor Chu, how many cases have you mastered?" asked Zhou Guohui.

"I did one case and mastered it. My brother said I was a girl and had a natural instinct. Chu Zhixi said casually.

“......”

"That's the guinea pig for the test, a special electric drill, the piercing sensation is very clear, I feel the pressure change, and then I just stop. But I see that it is very difficult for others to do this, I don't know how other people feel, it's very simple. ”

Simple...... It turned out that what Professor Chu said was simple, and Zhou Guohui was a little at a loss.

"Then the patient's meninges are cut open and a 2mm incision is made after electrocoagulation in the cerebral cortex. Chu Zhixi did not stop, but continued to do it step by step.

Cut open the meninges and see the brain. In Zhou Guohui's view, this is not a model at all, it is simply a real operation.

But when his eyes swept to the operating table, it was empty, with only a head on the head frame, but no body.

"The puncture needle is slowly implanted according to the coordinates, the trajectory of the puncture needle is fixed, and the whole puncture process only needs to be slowly punctured along the established track to insert the needle. Director Zhou, isn't it very simple?" Chu Zhixi said as he pulled out the needle core after the puncture was completed.

Simple, simple yarn!

Electrodes are implanted, and external electrical stimulation is performed. Because it was only surgical training, there was no body, so it was stopped at this step. The next step to look at the patient's response, nerve reflexes, and so on is also absent.

"Under normal circumstances, when external electrical stimulation is performed, we can see that the patient's symptoms such as tremor, stiffness, and sluggishness will be significantly improved. After the test is completed, we need to remove the puncture needle, leave the electrode in the skull, and then suture the incision, and the first stage is successfully completed. ”

"What about the second stage?" asked Zhou Guohui.

"The second stage is the implantation of the pulse generator. This stage is also relatively simple, but because our extension cord needs to pass through the subcutaneous tunnel, it will be more painful to complete it under local anesthesia, so we will complete this stage under general anesthesia. ”

"Wait!" Zhou Guohui found a problem that he hadn't noticed.

"What's wrong, Director Zhou?"

"The first stage is done under local anesthesia?" Zhou Guohui asked.

"yes. Chu Zhixi said as a matter of course, "The patient is awake at this stage and can clearly feel the effect after implanting the electrode, and some fine-tuning depends on the patient's reaction." ”

"Let's say......"

Chu Zhixi talked a lot, and there were some examples that Zhou Guohui had not heard. But he still can't accept the setting of local anesthesia craniotomy, it's just too brutal!

"Professor Chu, what if the patient is scared and moves?" Zhou Guohui asked.

"emmmmmm......" Chu Zhixi was stunned for a moment, and said with some distress, "This is indeed the most difficult step. ”

Zhou Guohui looked at Chu Zhixi, waiting for her explanation.

But when Chu Zhixi said this, it was as if he had forgotten about it and began to sew skin.

"Professor Chu, how did you solve it?" Zhou Guohui asked.

"I haven't encountered it. Chu Zhixi said, "Every time I do deep brain stimulation, my brother does shallow hypnosis on the patient, and the operation goes smoothly." ”

“......”

That's it, you tell me that the operation is simple? Zhou Guohui couldn't cry or laugh.