Chapter 3760 [3760] Is There Any

engine?

Cousin, what are you talking about! Mi Wenlin wanted 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.

"There's some ideas." Dr. Yao, a doctor with a doctorate in engineering, commented on the "engine" answer. "This answer is just a passing guess."

So what is it?

It is push type.

Mi Siran regretted: It was almost.

Xie Wanying smiled and tried again to find the junior sister who could answer the question: "What is the biggest problem with 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 pusher type is to insert one blood vessel into another blood vessel for anastomosis, which requires a propeller as an axis to drive the blood vessel into the sleeve. If the diameter of the blood vessel is too small, it will be difficult to make the propeller and other supporting devices, and it will be difficult for the doctor to operate the tool if it is too thin. It is better to sew it directly by hand.

The diameter of the mainstream blood vessels that the S stapler can handle 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. This is true for the so-called S stapler, let alone other staplers. Therefore, 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 lies in anastomosis of distal vessels. In patients with single-vessel disease, the distal blood vessel is close to the aorta and usually thicker, and an S stapler can be used for anastomosis. The situation of patients with multi-vessel disease is complex. Some blood vessels may exceed the lower limit of the diameter that the S stapler can handle. In addition, the operating angle during endoscopic surgery is tricky, making it difficult for doctors to use it.

This is the current situation of this patient. CT angiography shows that the diameter of the blood vessels in this patient's heart is not very optimistic.

Can a stapler be used for even small blood vessels? Some, non-push methods will be used in the future, and the idea will be developed to be similar to the traditional manual suturing method of surgeons. Put the ends of the two blood vessels into the ends of the stapler and release multiple curved needles with threads. When withdrawing the stapler, 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 anastomosis between the blood vessel surfaces. Tie the surgical knot again.

I haven’t seen any relevant pictures of this stapler in Dr. Yao’s computer database yet. Xie Wanying boldly risked exposing her rebirth and showed it to Dr. Yao. I wonder if there are any relevant research institutions secretly studying it. This question needs to be asked to the engineering doctorate.

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? Could this device be 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 doctorate once again attracted everyone's attention. The schoolbag of the man majoring in engineering is full of hard science fiction. The tool box occupies a large space. The stylish plaid shirt and game cards are indispensable for the fun-loving genius. There are no books, and 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, in order to ensure the success rate of manual suturing when the stapler is not available, the doctor needs to help the patient plan a feasible coronary path map.