"Professor Chu, what should I do before surgery?" Zhou Guohui asked.


    "Before operation, use signapioneer 3.0T MRI to scan the head image, import the scanned image into the preoperative planning system, and use the surgical planning system to plan the surgical target. There is no special preparation, and the key point is the selection of target coordinates."


    Zhou Guohui knows what Chu Zhixi said, but in neurosurgery, mistakes often happen. There is not much research on the brain, and neurosurgery was still a forbidden area decades ago.


    Research on the brain has developed rapidly in the last 2 or 30 years.


    Chu Zhixi said it was simple, but the operation was not like that. She blurred the most difficult steps, but Zhou Guohui didn''t ask in detail, but focused on Chu Zhixi''s operation.


    "First, the patient was anesthetized with 2% lidocaine, the standard Leksell stereotactic head frame was installed, and the skull CT scan was performed after fixation. The scanned image was fused into the preoperative planning system to calculate the target parameters. Part of my brother''s work now is to modify the preoperative planning system and automatically determine the target coordinates."


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


    Chu Zhixi''s meaning is very simple. When a vegetable wakes up, even after Alzheimer''s disease, he can calculate the pathway by computer. After maturity, there is no need for manual operation, and the computer can complete it accurately.


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


    "Assuming that the target coordinates have been selected, let''s operate. The new system will specify the needle entry route, so just operate. In fact, my brother said that the robot operation is better, because the robot only follows the fixed program and has no self-awareness, so the probability of problems is much lower."


    "But now there seems to be no discussion on this aspect in the domestic doctor law. It''s difficult to revise the doctor law... My brother said it''s hard to wait for academic acceptance and social acceptance. It''s optimistic that it will be at least 10 years later."


    "Make a straight incision or arc incision of about 4-5cm on the scalp of the puncture point path. I prefer arc incision, but it is recommended that you choose a slightly longer straight incision when operating."


    Watching Chu Zhixi fix the head with Leksell stereotactic head frame, and then modify the positioning, Zhou Guohui knows that the angle selection of Leksell stereotactic head frame is the calculated result, and a little error will lead to fatal damage.


    Chu Zhixi''s operation is very stable and gentle.


    Leksell fixed the head with the stereotactic head frame without repeatedly adjusting the angle and direction. Then he picked up the scalpel and cut an arc incision on the model.


    Then blunt separation, electric burn hemostasis, clear anatomical level, and soon to the position of the skull.


    "After exposing the patient''s skull, drill a 14mm bone hole in the skull. You need to understand this step and understand the hand feeling," Chu Zhixi said.


    "Is it a sense of emptiness?"


    "Well, it''s like doing cerebrospinal fluid puncture. It feels empty. Our hospital has a 3D printed model, and you can practice it again and again when you have time. This step must be sure to be safe, or you''ll burst your brain all over the wall."


    "..." Zhou Guohui smacked his tongue after hearing Chu Zhixi''s description.


    The tone of this 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 perform the operation, he told her so and made her cautious.


    "Professor Chu, how many examples have you done to master the trick?" Zhou Guohui asked.


    "Do you feel it? I''ve mastered it after one example. My brother said I was a girl and had natural intuition." Chu Zhixi said casually.


    “……”


    "That''s a white mouse for experiment. It''s a special electric drill. It has a clear sense of puncture, feels the pressure change, and then stops. But I think it''s very difficult for others to do this step. I don''t know how others feel. It''s very simple."


    Simple... It turns out that Professor Chu said simple is this truth, and Zhou Guohui was a little confused.


    "Then cut the patient''s meninges and make a 2mm incision after cerebral cortex electrocoagulation." Chu Zhixi didn''t stop, but did it step by step.


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


    But when his eyes swept to the operating table, the operating table was empty. There was only one head on the skull rack, but there was no body.


    "Slowly implant the puncture needle according to the coordinates, and the trajectory of the puncture needle is fixed. The whole puncture process only needs to slowly puncture the needle along the established track. Director Zhou, isn''t it very simple?" Chu Zhixi said while pulling out the needle core after the puncture.


    Simple? Simple wool!


    Electrodes were implanted and stimulated in vitro. Because it''s just surgical training, there''s no body, so this step is over. Next, the patient''s reaction, nerve reflex and other steps do not exist.


    "When external electrical stimulation is performed under normal conditions, we can see that the patients'' symptoms such as tremor, stiffness and slow movement will be significantly improved. After the test effect is completed, we need to pull out the puncture needle, leave the electrode in the brain, and then suture the incision. The first stage is completed smoothly."


    "What to do in the second stage?" Zhou Guohui asked.


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


    "Wait!" Zhou Guohui found a problem he didn''t notice.


    "What''s the matter, director Zhou?"


    "The first stage was completed under local anesthesia?" Zhou Guohui asked.


    "Yes," Chu Zhixi said naturally, "the patient is awake at this stage and can clearly feel the effect after electrode implantation. Some fine-tuning depends on the patient''s response."


    "For example..."


    Chu Zhixi said a lot, and some examples were unheard of by Zhou Guohui. But he still can''t accept the setting of local anesthesia craniotomy. It''s too cruel!


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


    "Emmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm


    Zhou Guohui looked at Chu Zhixi and waited for her explanation.


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


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


    "I haven''t met it," Chu Zhixi said. "Every time I do deep brain stimulation, my brother does shallow hypnosis for the patient, and the operation is very smooth."


    “……”


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