engine
Cousin what are you talking about! Mi Wenlin wanted to cry.
After a while, I saw that the expressions of the seniors were acceptable, and they didn't intend to laugh at Mi Siran.
"Some ideas." Dr. Yao, a doctor of engineering, commented on the answer of "engine", "This answer is a sideshow."
So what is it
It is push type.
Mi Siran regretted: It was a little bit.
Xie Wanying smiled and took the exam for the younger sister who could answer: "Do you know what is the biggest problem in the push-style?"
"Is it not suitable if the blood vessel is too small?" Mi Siran said.
This junior sister has a good brain. Lin Hao and Pan Shihua nodded. The pushing type is to insert one blood vessel into another blood vessel for anastomosis, and a propeller is needed as the axis to drive the blood vessel into the sleeve. If the diameter of the blood vessel is really too small, it is difficult for the pusher and other supporting devices to
In order to do it well, it is better to sew it by hand directly if the tool is too thin for the doctor to operate. The diameter of the main blood vessel that the s stapler can deal with is four to five millimeters, and if it is thinner, it will not be used at all if it is a blood vessel as thin as a few tenths of a millimeter. This is the case with the so-called most advanced s stapler, let alone other staplers. Place
The S-stapler is usually used at the proximal end of the coronary artery, near the aortic root, where the blood vessels are the thickest. The difficulty is in the distal vessel anastomosis. In patients with single-vessel disease, the distal blood vessels are usually thicker near the aorta, and can be anastomosed with an S-stapler. The situation of patients with multi-vessel disease is complicated, and some blood vessels may exceed the s-stapler
The lower limit of the diameter that can be dealt with is not available to doctors.
This is the case with this patient at present. CT angiography shows that the diameter of blood vessels in this patient's heart is not optimistic. Is there a stapler that can be used for even the smallest blood vessels? Some, in the future, the non-push type will be used, and the idea will be developed into a traditional manual suturing method similar to that of a surgeon. Put the ends of the two blood vessels into the two ends of the stapler and let them out
With the strip line looper, when the stapler is withdrawn, multiple sutures pass through the ends of the two blood vessels at the same time. At this time, the doctor tightens the sutures to align the blood vessel surfaces, and then ties the surgical knot. For the time being, there is no picture of this stapler in Dr. Yao's computer database. Xie Wanying boldly took the risk of exposing her rebirth to show Dr. Yao. I don't know if there are related research institutions secretly researching this
The question needs to be asked to the doctor of engineering.
Zuo Jinmao poked his head and saw what she drew and said, "Hey, didn't he play with it?"
Does Dr. Yao have it? Could it be that this device was developed by Dr. Yao
"Take it out and show it to her." Zuo Jinmao urged his companion.
Yao Zhiyuan went to get his schoolbag. Unsurprisingly, the schoolbag of the doctor of engineering has received everyone's onlookers again. Seeing that the engineering boy’s schoolbag is full of hard science fiction, the tool box occupies a large space, stylish plaid shirts and game cards are indispensable for geniuses who love to play
up. There are no books, and geniuses don't like endorsements.
Yao Zhiyuan lowered his head and rummaged through his schoolbag, there were too many small things, it took a little effort.
Others continued the discussion: If there is no suitable stapler, can the doctor use a surgical robot to sew it manually
It stands to reason that if the matter reaches that point, the doctor will definitely try his best to complete all kinds of attempts before turning to open the chest. Therefore, in the state where the stapler is not working, in order to ensure the success rate of manual suturing, the doctor needs to help the patient plan the coronary artery path map for the operation.