At this point when the operation is carried out, the position of the interventricular hole is determined according to the original surgical plan and the choroid plexus is seen. Just place the head end of the shunt tube in the square of the interventricular hole to avoid the choroid plexus, which is considered to achieve the first small goal of the operation.

The problem is that since you have used a ventricular lens, a kind doctor will take the patient's lateral ventricle to check if there are any other problems in the patient's ventricular system.

The patient previously suspected that he had traffic cerebral infarction, was it true, or that he could not take anything out after preoperative examinations such as CT. The accuracy of CT in this era is not very high, and this has been mentioned in previous cases.

The ventricular lens used by doctors now is a hard lens, not a soft lens. Doctors can check the ventricle more comprehensively and can replace it with an angled lens. Pull out the ventricular lens, change the head, change to a thirty-degree lens, and then insert it again.

When Xie Wanying rotates the thirty-degree lens, her hands are more stable and there is nothing to be afraid of at all.

The original lens was only directed in front, replaced with the angled lens, and then retreated slightly. When rotating, you can see the walls of the fornix-shaped lateral ventricle.

The overall shape of the upper ventricle is something that medical students have seen in the school’s anatomy teaching room. It is like a cavity, but it is not a regular shape such as a circle, and it is a bit like a strange cave.

There are many similar cavity in the human body, like the trachea and the digestive tract, but most people do not expect that there is a cavity in the human brain. This is a profound understanding of medical students, just in the anatomy room. There are dead objects in the anatomy room, not living creatures, unlike in the operation room where you can witness the life phenomena in the cavity with your own eyes. For example, on the screen of today's monitors, you can see the scene of cerebrospinal fluid flowing in the ventricle in the patient's brain.

After the lateral ventricle is examined, the third ventricle is further examined. This time the lens has to pass through the ventricular hole. The first operation can be said to be completely inexperienced in this area, but fortunately, the use of a hard mirror. For the operator, the main movement of the hard mirror is only necessary to insert it in or backward. The tube is not like a soft mirror and a snake, which makes it difficult for the doctor to control. At this time, as long as you enter slowly, and according to the super turtle speed displayed on the surveillance screen, there will be basically no problem. There is not much difference between a novice and a veteran in this regard.

After doing this, Xie Wanying understood why Senior Brother Cao asked her to try the hard mirror first.

In hand exercises, hard mirrors are said to be afraid of being more likely to hurt tissues. In fact, as long as the surgeon masters to the upper limit of strength and be cautious, it is much easier to do than soft mirrors.

In this way, Senior Brother Cao may be more capable of leading students than Senior Brother Tao, and is a hidden gold medal teaching guide.

She didn't think so alone.

After all, the group of people who were watching Puwai Er were also hard-core, and they also realized something. They glanced at Cao Yong: This person pretended to be serious on the surface, but in fact he was taking care of someone in different ways.

Back to the operation, hard lenses seem to be full of advantages. They seem to be very friendly to doctors and can make it easy for doctors to get started. Why should we invent soft lenses? Isn’t it better to use hard lenses directly?

A hard lens has a flaw. For example, the first flaw is used. If the surgical incision is particularly important and the direction of entering the lateral ventricle is incorrect, it is difficult to pass through the interventricular hole and enter the third ventricle to continue the examination.
Chapter completed!