CN102068293A - Magnetic device applied to anastomosis of large and medium blood vessels - Google Patents

Abstract

A magnetic device suitable for anastomosis of large and medium-sized blood vessels, which uses two permanent magnet anastomotic rings containing permanent magnets corresponding to the diameter of the large and medium-sized blood vessels to be anastomosed to complete the anastomosis of blood vessels with different diameters, thus avoiding manual suturing. The disadvantages of lumen stenosis, pseudoaneurysm, anastomotic leak, slow anastomosis and many complications caused by anastomosis, the two permanent magnet anastomotic rings are relatively smooth and smooth, so that the intima of the vessel is aligned neatly, avoiding the The shortcomings of anastomotic stenosis, blood leakage, massive bleeding caused by ligature slippage, local tissue granuloma, and pseudoartery formation, and the anastomosis speed is more than 10 times faster than that of manual anastomosis, avoiding the long-term blockage of blood flow by tissues and organs As a result, organ congestion and edema cause anastomotic oozing.

Description

A magnetic device suitable for anastomosis of large and medium vessels

technical field

The invention relates to a medical device, in particular to a magnetic device suitable for anastomosis of large and medium blood vessels.

Background technique

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 large and medium-sized arteries and veins need to be anastomosed during major operations, which can lead to organ congestion and edema due to long-term blockage of blood flow, resulting in anastomotic bleeding Or postoperative secondary hemorrhage due to ligature slippage, postoperative local granulation tissue reaction and hyperplasia may also be caused by the ligature remaining in the body, which aggravates the body injury of the patient; Various complications such as aneurysms affect the healing of the anastomosis, and manual anastomosis also requires high surgical skills. These shortcomings are still affecting the long-term efficacy of various vascular anastomosis operations. But so far there is no special device for blood vessel anastomosis except utilizing sutures in the operation to manually anastomose blood vessels.

Contents of the invention

In order to overcome the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a magnetic device suitable for anastomosis of large and medium-sized blood vessels, using two permanent magnets containing permanent magnets corresponding to the diameter of the large and medium-sized blood vessels to be anastomosed The anastomotic ring completes the anastomosis of blood vessels with different diameters, which avoids the shortcomings of lumen stenosis, pseudoaneurysm, anastomotic leak, slow anastomosis speed and many complications caused by manual anastomosis with sutures. Two permanent magnet anastomosis The ring is relatively smooth and smooth to make the intima of the blood vessel fit neatly, avoiding the shortcomings of anastomotic stenosis, blood leakage, massive bleeding caused by ligation slippage, local tissue granuloma, and pseudoartery formation, and the anastomotic speed is faster than that of manual anastomosis. It is more than 10 times faster, and avoids anastomotic oozing of tissues and organs caused by congestion and edema of organs due to long-term blockage of blood flow.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A magnetic device suitable for anastomosis of large and medium-sized blood vessels, consisting of two permanent magnet anastomosis rings, each of which has a hollow hole 5 with the same shape and size and a diameter corresponding to the diameter of the blood vessel 11 to be anastomotic The polypropylene cylindrical shell 2, the cylindrical shell 2 has a cylindrical annular groove 3 on one end face, so that the end face is divided into two parts by the groove 3, the outer end face and the inner end face, and the groove 3 is embedded with its center A cylindrical annular permanent magnet 1 whose axis coincides with the central axis of the cylindrical annular groove, the magnetic properties of the permanent magnets 1 of the two permanent magnets matching the ring are opposite, and one end face of the permanent magnet 1 is the same as the outer end face and the inner end face. In addition, there are more than two conical titanium alloy needles 7 with outward-facing vertebral points distributed on the outer end surface, and there is a conical point-inward conical needle on the outer end surface between two adjacent titanium alloy needles 7. small hole 4, the titanium alloy needle 7 of each permanent magnet anastomosis ring and the conical small hole 4 positions of another permanent magnet anastomosis ring correspond one by one and the outer surface of the corresponding titanium alloy needle 7 and the conical small hole 4 The shape and size of the inner wall are the same.

The anastomosis of blood vessels with different diameters is accomplished by using two permanent magnet anastomotic rings containing permanent magnets 1 corresponding to the diameters of the large and medium-sized blood vessels to be anastomosed, thus avoiding the narrowing of the lumen and false anastomosis caused by manual suture anastomosis. Aneurysm, anastomotic leakage, slow anastomotic speed, and many complications, the two permanent magnet anastomotic rings are relatively smooth and neat, so that the intima of the blood vessel fits neatly, avoiding anastomotic stenosis, blood leakage, and ligatures Slipping causes massive bleeding, local tissue granuloma, and pseudoarterial formation, and the anastomosis speed is more than 10 times faster than that of manual anastomosis, which avoids the anastomotic oozing of tissues and organs caused by organ congestion and edema due to long-term blockage of blood flow. The titanium alloy needles 7 attached to the surfaces of the other two permanent magnet anastomotic rings are small in size and have good tissue compatibility with the polypropylene material, and the polypropylene material also has an anti-infection effect. The two permanent magnet anastomotic rings are embedded in the tissue after the operation, and the magnetic field of the two permanent magnet anastomotic rings also plays a good role in promoting the healing of the tissue. Small and fast recovery. Operation using the device does not cause or only causes very slight adhesion, and reoperation is simple and easy.

Description of drawings

Fig. 1 is a structural schematic diagram of a permanent magnet anastomotic ring of the present invention.

Fig. 2 is a schematic diagram of the relative placement of two permanent magnetic anastomotic rings of the present invention.

Fig. 3 is a schematic diagram of the proposed mating state after two permanent magnetic anastomotic rings of the present invention respectively fix blood vessel stumps.

Fig. 4 is a schematic diagram of a state in which two permanent magnetic anastomotic rings complete blood vessel anastomosis according to the present invention.

Detailed ways

The present invention will be described in more detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the magnetic device suitable for anastomosis of large and medium-sized blood vessels consists of two permanent magnet anastomosis rings, each of which has a shape and size consistent with the diameter of the blood vessel 11 to be anastomotic. The polypropylene cylindrical shell 2 of the hollow hole 5, the cylindrical shell 2 has a cylindrical annular groove 3 on one end face, so that the end face is divided into two parts, the outer end face and the inner end face by the groove 3, and the inner end face of the groove 3 A cylindrical annular permanent magnet 1 whose central axis coincides with the central axis of the cylindrical annular groove is embedded, and the magnetic properties of the permanent magnets 1 of the two permanent magnets matching the ring are opposite, and one end face of the permanent magnet 1 is the same as the outer end face It is flush with the inner end surface, and in addition, there are more than two conical titanium alloy needles 7 with outwardly pointing vertebrae on the outer end surface, and there is a vertebral point on the outer end surface between two adjacent titanium alloy needles 7 The inward conical small hole 4, the titanium alloy needle 7 of each permanent magnet anastomotic ring and the conical small hole 4 positions of another permanent magnet anastomotic ring are mirror images corresponding to the outer surface of the corresponding titanium alloy needle 7 and the cone The shape and size of the inner wall of the small hole 4 are consistent.

The working principle of the present invention is: at first two permanent magnet anastomosis rings have the end faces of cylindrical annular groove 3 relative as shown in Figure 2, then the blood vessel 11 to be anastomotic passes through the polypropylene cylindrical shell 2 of two permanent magnet anastomosis rings The hollow hole 5 passes through as shown in Figure 3, and then the permanent magnets 1 in the two permanent magnet anastomosis rings attract each other to automatically complete the anastomosis as shown in Figure 4, and the anastomosis port 10 is sealed to form a smooth blood vessel anastomosis cavity.

The anastomosis of blood vessels with different diameters is accomplished by using two permanent magnet anastomotic rings containing permanent magnets 1 corresponding to the diameters of the large and medium-sized blood vessels to be anastomosed, thus avoiding the narrowing of the lumen and false anastomosis caused by manual suture anastomosis. Aneurysm, anastomotic leakage, slow anastomotic speed, and many complications, the two permanent magnet anastomotic rings are relatively smooth and neat, so that the intima of the blood vessel fits neatly, avoiding anastomotic stenosis, blood leakage, and ligatures Slipping causes massive bleeding, local tissue granuloma, and pseudoarterial formation, and the anastomosis speed is more than 10 times faster than that of manual anastomosis, which avoids the anastomotic oozing of tissues and organs caused by organ congestion and edema due to long-term blockage of blood flow. The titanium alloy needles 7 attached to the surfaces of the other two permanent magnet anastomotic rings are small in size and have good tissue compatibility with the polypropylene material, and the polypropylene material also has an anti-infection effect. The two permanent magnet anastomotic rings are embedded in the tissue after the operation, and the magnetic field of the two permanent magnet anastomotic rings also plays a good role in promoting the healing of the tissue. Small and fast recovery. Operation using the device does not cause or only causes very slight adhesion, and reoperation is simple and easy.

Claims (1)

1. A magnetic device suitable for large and medium-sized blood vessel anastomosis, characterized in that: it consists of two permanent magnet anastomosis rings, each of which has a shape and size that is the same as that of the blood vessel to be anastomotic (11) The polypropylene cylindrical shell (2) of the hollow hole (5) that pipe diameter conforms to, and this cylindrical shell (2) has cylindrical annular groove (3) on one end face, and this end face just is divided by groove (3) like this It is two parts, the outer end surface and the inner end surface, and the groove (3) is embedded with a cylindrical annular permanent magnet (1) whose central axis coincides with the central axis of the cylindrical annular groove, and the permanent magnets of the two permanent magnets coincide with the ring. The magnetism of the magnet (1) is opposite. One end face of the permanent magnet (1) is flush with the outer end face and the inner end face. In addition, more than two conical titanium alloy needles are distributed on the outer end face. (7), the outer end surface between two adjacent titanium alloy needles (7) has a cone-shaped small hole (4) with the cone point inward, and the titanium alloy needle (7) of each permanent magnet anastomosis ring The position of the conical small hole (4) of the other permanent magnet anastomotic ring corresponds to the mirror image one by one, and the outer surface of the corresponding titanium alloy needle (7) is consistent with the shape and size of the inner wall of the conical small hole (4).

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