Magnetic device applicable to anastomosis of large vessels

Abstract

The invention discloses a magnetic device applicable to anastomosis of large vessels. Two elliptic-cylinder-shaped anastomosing rings which correspond to the pipe diameter of the large vessels to be anastomosed and contain permanent magnets are utilized to finish anastomosis of the vessels with different pipe diameters; the opposite surfaces of two permanent magnet anastomosing rings are smooth and polished, so that the endangiums of the vessels are neatly aligned, and further the defects of narrow anastomosing ports, blood leakage, and various complications such as massive haemorrhage, local tissue granuloma and pseudoartery formation and the like due to slipping of ligatures caused by manual suture for anastomosis are avoided; as the anastomosing rings are designed to be elliptic-cylinder-shaped, clamping and fixing with surgical instruments in surgery are convenient, and the magnetic device is very beneficial to anastomosis operation of the large vessels at deep parts of the body cavity; and the time of utilizing the anastomat to carry out anastomosis on the large vessels is more than five times shorter than that of manual anastomosis, so that the condition that the blood of tissues and organs are blocked for long time so as to cause ischemic operation of the organs or congestion and edema and further cause dysfunction of the organs. In addition, the end surface adopts conical titanium alloy needles and corresponding conical small holes so as to be beneficial to tight alignment of the anastomosing ports in surgery.

Description

technical field [0001] The invention relates to a medical device, in particular to a magnetic device suitable for anastomosis of large blood vessels. Background technique [0002] In traditional surgery, the manual anastomosis method more than 100 years ago is still used, and now it has become the mainstream technique of large vessel anastomosis. Although great progress has been made in the selection of suture materials, this traditional manual suture method has not yet been established. It can fully comply with the ideal principle of vascular anastomosis. Not only is the anastomosis speed slow, but it may also lead to severe hemodynamic and internal environment disturbances during the operation, large surgical trauma, and release of inflammatory mediators, especially in major operations that require anastomosis in the body cavity. In the case of deep large blood vessels, long-term blockage of blood flow may lead to organ ischemia and necrosis, or congestion and edema may ca...

AI Technical Summary

Problems solved by technology

[0002] In traditional surgery, the manual anastomosis method more than 100 years ago is still used, and now it has become the mainstream technique of large vessel anastomosis. Although great progress has been made in the selection of suture materials, this traditional manual suture method has not yet been established. It can fully comply with the ideal principle of vascular anastomosis. Not only is the anastomosis speed slow, but it may also lead to severe hemodynamic and internal environment disturbances during the operation, large surgical trauma, and release of inflammatory mediators, especially in major operations that require anastomosis in the body cavity. In the case of deep large blood vessels, long-term blockage of blood flow may lead to organ ischemia and necrosis, or congestion and edema may cause bleeding at the anastomosis, or secondary bleeding may occur due to slippage of the ligature after surgery. The ligature stays in the body and causes local granulation tissue reaction and hyperplasia, which aggravates the body injury of the patient; in addition, it may cause damage to the blood vessel wall to form various complications such as pseudoaneurysm, which will affect the healing of the anastomosis, and manual anastomosis requires surgery high surgical skill

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

But so far, except for the manual anastomosis of blood vessels with sutures, there is only a simple cylindrical blood vessel anastomosis device. This cylindrical structure is not convenient for clamping and fixing surgical instruments during the operation, especially very unfavorable for large and deep parts of the body cavity. Vascular anastomosis operation has the disadvantages of long and difficult anastomosis, and in severe cases, it may lead to unsuccessful vascular anastomosis, resulting in rupture of blood vessels and excessive blood loss.

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