Magnetic device suitable for anastomosing small vessels

Abstract

The invention discloses a magnetic device suitable for anastomosing small vessels. Two permanent magnet-containing permanent magnet anastomosis rings which correspond to the vessel diameters of small vessels to be anastomosed are used for finishing anastomosing blood vessels of different vessel diameters, so that defects such as narrow vessel cavity, pseudoaneurysme, anastomotic leakage, low anastomosis speed and a large number of complications are overcome. The two permanent magnet anastomosis rings are opposite to each other and are smooth, so that endangiums are folded neatly, defects such as narrow anastomotic stoma, blood leakage, massive hemorrhage caused by slip of a ligature, granulation tumor of local tissue and the formation of false artery are avoided, anastomosis speed is increased to be more than 10 times that of manual anastomosis, and anastomosis errhysis caused by congestion edema of an organ due to long-time blood flow blockage of a tissue organ is avoided.

Description

technical field [0001] The invention relates to a medical device, in particular to a magnetic device suitable for anastomosis of small blood vessels. Background technique [0002] In traditional surgery, the manual anastomosis method proposed by Carrel is still used more than 100 years ago. Now it has become the mainstream vascular anastomosis technique, but it has not yet fully complied with the ideal principle of vascular anastomosis. Hemodynamics and internal environment are disordered, surgical trauma is large, and inflammatory mediators are released, especially when important small arteries and veins need to be anastomosed in major operations, which can lead to organ ischemia and hypoxia and dysfunction due to long-term blockage of blood flow. Obstacles, or secondary hemorrhage due to slippage of the ligature after surgery, small arteriovenous anastomosis is more prone to stenosis or occlusion of the anastomosis, resulting in failure of vascular anastomosis, dysfunction...

AI Technical Summary

Problems solved by technology

[0002] In traditional surgery, the manual anastomosis method proposed by Carrel is still used more than 100 years ago. Now it has become the mainstream vascular anastomosis technique, but it has not yet fully complied with the ideal principle of vascular anastomosis. Hemodynamics and internal environment are disordered, surgical trauma is large, and inflammatory mediators are released, especially when important small arteries and veins need to be anastomosed in major operations, which can lead to organ ischemia and hypoxia and dysfunction due to long-term blockage of blood flow. Obstacles, or secondary hemorrhage due to slippage of the ligature after surgery, small arteriovenous anastomosis is more prone to stenosis or occlusion of the anastomosis, resulting in failure of vascular anastomosis, dysfunction, postoperative may also be caused by the ligature remaining in the body Local granulation tissue reaction and hyperplasia aggravate the patient's body injury; in addition, it will cause various complications such as pseudoaneurysm due to damage to the vessel wall, which will affect the healing of the anastomosis, and manual anastomosis requires high surgical skills

These shortcomings are still affecting the long-term efficacy of various anastomotic operations involving blood vessels

But so far, there is no special device for blood vessel anastomosis except for manual anastomosis of blood vessels with sutures.

Images