To keep this kind of hard pole item on the correct path, the initial entry angle must be accurate.
This is why several teachers nodded vigorously before. On the other hand, everyone knows that it is easy to listen to what Xie said, this is just the first step.
Whether the correct angle can be controlled depends on the operator's hands and cannot be achieved by just talking or calculating.
How can a first-time operator be sure that he can perform an operation he has never done before?
It doesn’t matter if you don’t have tactile experience, as tactile experience can still be calculated by numbers.
The sheath can be compared with the puncture needle to determine the weight and length, and then the new hand feel value can be calculated in the brain. With this calculated relative hand feel value, the brain tells the hand to put down the puncture needle with a force that is several times or a fraction of the force used in the puncture needle.
She is not afraid of subtle adjustments, no matter what she has in her hand. When the puncture needle punctures the patient's brain tissue, she can collect the resistance value, so she has a good idea of not damaging or puncturing the brain tissue, and knows the upper and lower limits of the force.
If you are holding this device for puncture for the first time, are you afraid that the movements will be awkward and unfamiliar? There is no need to be afraid. These medical devices are invented to facilitate the operation of doctors, and basically do not violate the natural movement mechanism of the human hand.
The doctor needs to hold the endoscope sheath with both hands, but the handle and the sheath body are at a certain angle close to ninety degrees, which is convenient for the doctor to hold and insert.
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My thoughts are clear and my mentality is stable. I know how much strength and angle to use when holding this thing.
After aiming, the angle is adjusted to the correct position, and the head of the sheath is placed into the incision, maintaining a certain slow rhythm to enter, just like the puncture needle, to avoid damaging the brain tissue as much as possible.
She did it smoothly and completed the first stage goal without any obstacles.
Huang Zhilei, who was standing next to her, was completely stunned.
It cannot be said that he had never seen surgery before. He went to watch when Xie Wanying participated in the orthopedic surgery. It was just that the shock of witnessing the whole process up close was completely different from the feeling of watching for a moment.
People said that the junior sister was amazing, and he, as a senior, felt proud and thought that the junior sister was amazing. The junior sister had shown him how amazing she was in medical theory. But he had not yet experienced how amazing the junior sister was in surgery.
Today's surgical scene and this moment brought him the first wave of visual impact, making him understand how powerful the junior sister is: the junior sister's power is indescribable, and it is so powerful that people can't understand why.
This almost shocked the neurosurgeon.
What surprised him most was that the people around him were as shocked as he, the little fool.
Several pairs of eyes stared at Xie Wanying's hands.
"She used to be in the second general surgery department." Sun Yubo recalled the fledgling look of Xie on her first day in the clinic last year. The more he thought about it, the more confused he became. "She was hit on the back of her hand by Teacher Tan several times."
Xie is smart, has solid knowledge of textbooks, and is good at collecting medical information. The only thing he lacks is his hands. Sun Yubo is Xie's teacher, and there are few things that can comfort him. Fortunately, Xie is no different from him in this regard, and he will be spanked by Teacher Tan.
What operations require the doctor to have a good feel? The more advanced the tools, the higher the requirements for the doctor's feel. This is the effect demonstrated by Teacher Tan during the student Xie's graduation exam.
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