Focusing only on her scalpel, Xie Wanying held the scalpel again and made a cross-shaped incision on the dura mater exposed after the drilling.
After the incision, it is important to continue to carefully clean away any blood clots.
The incision was so small that the hole was only about one centimeter in diameter, and it was almost impossible to see what was inside. The surgeon would not use any tools to pry open the inside himself.
Taking a look at the incision site, the doctor's field of vision was filled with a white, soft substance, which was obviously brain tissue.
I used to sew tofu on the liver and gallbladder, which was said to be a job for neurosurgery. But when I saw with my own eyes, the appearance of the brain tissue really looked like a block of tofu.
Tofu is soft and easy to break into pieces. It has a self-tensioning surface that acts like a membrane to maintain its shape. Brain tissue is really similar. If you really look into the details, the arteries and veins in the human brain plus the special structures such as the ventricles cannot be generalized as tofu. The brain puncture needle is put into place. This time the doctor needs to calm down. After all, it is a critical step. If you don't feel confident, you can ask an assistant to help estimate whether this position has entered the ventricle.
Holding the puncture needle, the surgeon must accurately determine the direction of the puncture needle, which is toward the midpoint of the line connecting the two external ears. The depth of insertion must be very careful not to pierce the arachnoid membrane. According to the surgeon's own estimate, it is about the same length as the catheter at the brain end of the shunt tube, which is seven.
Given the tofu-like tissue, the puncture was done slowly and steadily to avoid excessive damage. During this period, Xie Wanying took the opportunity to accumulate her experience. She had actually done this once before, when she helped Teacher Xin.
After puncture, it is the turn of the upper ventricle endoscopy.
...
...
Huang Zhilei hurriedly looked at the Song cat again.
Song Xuelin wanted to roll his eyes at the stupid senior, but see, he already knew it but was afraid it was too late.
Like the ventricular mirror puncture needle, first place the mirror sheath and then enter along the original entry path of the puncture needle.
When Huang Zhilei explained this to his junior sister who was operating a ventriculoscope for the first time, he was more nervous than the person involved. As the saying goes, the emperor is not anxious to kill the eunuch. After finishing the lecture, he said, "Do you need me to show you how to do it first?"
"Is it correct to enter by the original route?" Xie Wanying asked.
As long as she entered the surgery from the original route, she had nothing to worry about. She was sure she remembered the route she had just taken.
What Huang Zhilei wanted to express was: "Take off the sheath of the ventriculoscope."
This time, Xie Wanying understood what Senior Brother Huang said. The feel of this mirror sheath is different from that of the puncture needle. It is heavier than the puncture needle.
When inserting the puncture needle, the operator can use one finger to support the support to prevent the puncture needle from being unstable and tilted. The operation of the ventriculoscope is not like this. The doctor holds the handle of the sheath with both hands, just like holding the end of a sword with both hands and inserting it.
As you can imagine, such an operation will test the doctor's hand stability.
"Angle is very important," said Xie Wanying.
With her words, the big guys around nodded in agreement.
Song Xuelin handed the ventriculoscope to her directly.
Maybe he would have hesitated before, but now he doesn't have to hesitate anymore, because Dr. Xie obviously trained as a major surgeon somewhere before returning.
Xie Wanying recalled that Brother Shenxian was so good to her that there was no need to say more. No other instructor would give her such an opportunity to practice.
(Cao Zhao: Good things should be kept within the family.)
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