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 well: "Do you know what is the biggest problem of the push type?"
"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 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 really too small, it will be difficult for the propeller and other supporting devices to
In order to do it well, it is better to sew by hand if the tool is too thin and difficult for the doctor to operate. 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. 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 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. Patients with multivessel disease have complex conditions, and some may have blood vessels that exceed the stapler
The lower limit of diameter that can be handled is beyond the reach of doctors.
This is the current situation of this patient. 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 two ends of the stapler and release more
The strip line curved needle, when the stapler is withdrawn, multiple sutures pass through the ends of the two blood vessels at the same time.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 anastomosis of the blood vessel surfaces, and then ties a surgical knot. 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 any relevant research institutions are 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 drew 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 engineering boy’s schoolbag is full of hard science fiction. The tool box occupies a large space. The stylish plaid shirt and game cards are indispensable for a genius who loves to play.
. 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. .
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【3760】Is there any free reading?
