Cousin, what are you talking about? Mi Wenlin wants to cry.
After a while, I saw that the expressions of several seniors were acceptable and they had no intention of making fun of Mi Siran.
"Some ideas." Dr. Yao, a doctor with a doctorate in engineering, commented on the "engine" answer, "This answer is a bit of a stretch."
So what is it?
It's push type.
Mi Siran regretted: It was almost a little bit.
Xie Wanying smiled and tried again to find the junior sisters who could answer the test well: "What is the biggest problem of the push type? Do you know?"
"Is it inappropriate if the blood vessels are too small?" Mi Siran said.
This junior sister's brain is good. Lin Hao and Pan Shihua nodded. The push-through method is to insert one blood vessel into another blood vessel for anastomosis, and a propeller is needed as an axis to drive the blood vessel into the sleeve. If the diameter of the blood vessel is really too small,
Propulsors and other supporting devices are difficult to
It can be done well, and it is difficult for doctors to operate tools that are too thin. It is better to sew directly by hand. The diameter of the mainstream blood vessels that the stapler can deal with is four to five millimeters. If it is any thinner, it will not be used at all if it is a blood vessel as thin as a few tenths of a millimeter. It is known as the most
This is true for the advanced S stapler, let alone other staplers. So
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 anastomosis in the distal blood vessels. In patients with single-vessel disease, the distal blood vessels are usually close to the aorta.
If it is thicker, the S stapler can be used for anastomosis. Patients with multi-vessel disease have complicated conditions, and some blood vessels may exceed the S stapler.
The lower limit of the diameter that can be handled is beyond the reach of doctors.
The current situation of this patient is exactly like this. Angiography shows that the diameter of the blood vessels in this patient's heart is not very optimistic. Is there a stapler that can be used for small blood vessels? Yes, in the future, the non-push type will be used, and the idea will develop into something similar to surgery.
The doctor's traditional manual suturing method. Put the ends of the two blood vessels into the stapler and release more
With the strip line curved needle, multiple sutures pass through the ends of the two blood vessels at the same time when the stapler is withdrawn. At this time, the doctor tightens the sutures to align the blood vessel surfaces and then ties the surgical knot. It is not currently in Dr. Yao's computer database.
Seeing related pictures of this kind of stapler, Xie Wanying boldly risked exposing her rebirth and showed it to Dr. Yao. I wonder if there are relevant research institutions secretly studying this.
Questions need to be asked to someone with a PhD in engineering.
Zuo Jinmao poked his head around and saw what she had drawn and said, "Hey, isn't this what he did for fun?"
Does Dr. Yao have it? Was this device developed by Dr. Yao?
"Take it out and show it to her," Zuo Jinmao urged his companion.
Yao Zhiyuan walked to get his schoolbag. Unexpectedly, the schoolbag of the engineering doctor once again attracted everyone's attention. The engineering man's schoolbag was full of hard science fiction. The tool box took up a large space, and he was wearing a stylish plaid shirt and
Game cards are indispensable for geniuses who love to play
No. There are no books. Geniuses don’t like endorsements.
Yao Zhiyuan lowered his head and rummaged through his schoolbag. There were so many tiny things that it took some effort.
Others nearby 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 thoracotomy. Therefore, when the stapler is not available, in order to ensure the success rate of manual suturing, the doctor needs to help the patient plan a feasible operation.
Coronary artery path diagram..
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