WO2016082481A1

WO2016082481A1 - Primary-secondary type surgical anastomosis magnetic ring

Info

Publication number: WO2016082481A1
Application number: PCT/CN2015/078904
Authority: WO
Inventors: 史源
Original assignee: 史源
Priority date: 2014-11-27
Filing date: 2015-05-13
Publication date: 2016-06-02
Also published as: CN104398281A; CN104398281B

Abstract

Disclosed is a primary-secondary type surgical anastomosis magnetic ring. A secondary ring (1) and a primary ring (2) are both of an elliptic or round ring structure, the secondary ring (1) and the primary ring (2) are mutually connected and located by two or more fastening structures (3) on the primary ring (2), discontinuous grooves (6) are formed in the ring surface where the primary ring (2) is in contact with the secondary ring (1), and a press incline (7) is formed on the outer periphery of the ring surface. The primary ring (2) comprises an elliptic or round primary ring sleeve (8), and an elliptic or round primary magnetic ring (9), which corresponds to the primary ring sleeve (8) and is made of magnetic materials, the primary ring sleeve (8) is of an annular U-groove structure, the primary magnetic ring (9) is embedded into the annular U-groove structure, and the discontinuous grooves (6), the press incline (7) and the fastening structures (3) are all formed on the corresponding sleeve surfaces of the primary ring sleeve (8). The secondary ring (1) comprises an elliptic or round secondary ring sleeve (10), and an elliptic or round secondary magnetic ring (11), which corresponds to the secondary ring sleeve (10) and is made of magnetic materials, the secondary ring sleeve (10) is of an annular U-groove structure, and the secondary magnetic ring (11) is embedded into the annular U-groove structure. The magnetic ring is capable of preventing early falling of the magnetic ring due to rapid increase of magnetic force with tissue healing and thinning between magnetic rings, and preventing the dislocation of the secondary ring (1) and the primary ring (2).

Description

Sub-mother surgical anastomosis magnetic ring

Technical field

The present invention relates to a surgical anastomosis magnetic ring for acne circumcision, colorectal anastomosis or circumcision. In particular, it relates to a sub-mother surgical anastomosis magnetic ring having a composite structure.

Background technique

The principle of magnetic ring press-flange is to use the strong attraction between the magnetic rings made of rare earth permanent magnets to produce a continuous, non-penetrating and gradually strengthening mechanical compression; using the same shape magnetic ring to automatically align in three-dimensional space The characteristics are precisely aligned, resulting in ischemic necrosis of the compressed intestinal wall between the magnetic rings, while the adjacent intestinal wall of the outer ring of the magnetic ring gradually heals. In 1978, the former Soviet Union Kanshin and other scholars used the magnetic ring for gastroduodenal-jejunum lateral anastomosis. The anastomosis was healed 6-7 days after operation. The magnetic ring was excreted with feces, and the pathological results confirmed the anastomotic healing. good. In 1981, American scholar Jansen used a magnetic ring to perform rapid colorectal anastomosis in 21 patients. The magnetic ring diameter was 25, 28, and 30 mm. The magnetic attraction force was 2.5 N at a distance of 4 cm. The anastomosis was healed 7-12 days after surgery. Two patients had anastomotic rupture after fecal discharge. The other 18 patients had good anastomosis by X-ray and sigmoidoscopy, but were put on hold due to material limitations, anastomotic weight and other reasons. In 2009, the University of California, Ramin and other design gradient pressure magnetic ring intestinal anastomosis device for pig small intestine anastomosis, healed well. In 2009, Duke University Christophe and others used a magnetic stapler to complete an animal experiment involving small bowel anastomosis, which healed well. In 2011, the University of California, Kullada used a magnetic anastomosis device to complete the small intestine anastomosis large animal experiment, and the effect was good. At present, magnetic press anastomosis is widely used in the treatment of postoperative biliary stricture, coronary artery bypass grafting, esophageal stricture treatment, vascular anastomosis, gastrointestinal anastomosis, laparoscopic minimally invasive surgery, and endoscopic minimally invasive treatment. Its development history conforms to the development trend of surgery, and it has undergone open surgery and laparoscopic surgery before and after. It has now advanced into the natural endoscopic surgery and is full of vitality.

China is a country with high incidence of acne. According to statistics, about 52.2% of Chinese people suffer from acne diseases. It is conservatively estimated that hundreds of thousands of patients in China receive hemorrhoid surgery every year. About 100,000 people in the United States receive hemorrhoid surgery every year. According to statistics, the growth rate of colorectal cancer in large cities in China far exceeds that in western countries. About 400,000 new patients with colorectal cancer are added each year. Minimally invasive surgery for colorectal cancer has become a research hotspot. Therefore, it is speculated that nearly one million patients in China receive acne or colorectal cancer surgery every year. At present, the clinical surgical stapler is mainly a titanium stapler. Its core technology and patents are concentrated in the hands of developed countries such as Europe and the United States. The domestic stapler technology is relatively weak. Based on the long-term research of the applicant, this patent makes full use of the principle of magnetic press anastomosis technology. For the first time, the new composite structure of the mother-in-law magnetic ring is used for acne anastomosis, colorectal anastomosis and circumcision, in order to benefit the majority of domestic patients.

Procedure for prolapse and hemorrhoids (PPH) refers to the supraorbital mucosal circumcision with a circular titanium stapler. The procedure was first proposed by the Italian scholar Longo in 1998 for the treatment of second to fourth prolapsed internal hemorrhoids. The principle is that in the case of retaining the anal cushion tissue, a part of the internal hemorrhoids and the upper mucosa and submucosal tissue are removed by a circular loop of 3-4 cm, thereby achieving the purpose of blocking the blood flow of the iliac crest and suspending the tissue. . The pathological anorectal rectum is restored to a normal anatomical state. Because the procedure has no incision in the perianal skin, the postoperative pain is lighter. At the same time, due to the retention of the anal cushion, the postoperative ability to control the stool is not affected. There are no complications such as anal stenosis and fecal incontinence, which is rapidly promoted internationally, but Due to the high incidence of complications such as infection, pain and stenosis after titanium staple circular anastomosis, it is currently controversial in China.

The patent No. 201010200289.3 is mainly used for gastrointestinal anastomosis and lacks a safety anti-off device. The experience of the magnetic ring in the clinical application of gastrointestinal anastomosis has confirmed that if the magnetic ring magnetic force is weak, it is easy to disengage. Disengagement of the magnetic ring is a serious complication that can lead to death of the patient; if the magnetic force is too strong, the magnetic ring has fallen off before the intestinal wall heals, causing intestinal fistula or bleeding. Therefore, there must be a safety fixture

Patent No. 201210000963.2 relies on the deformation of the magnetic ring to pass through the colorectal lumen and anus. Since the upper mucosal resection is close to the dentate line, the patent decomposes the complete magnetic ring into 4 parts and joints. Connections are prone to complex manufacturing processes, weak magnetic forces, and increased instability.

Summary of the invention

The technical problem to be solved by the present invention is to provide a sub-mother surgical anastomosis magnetic ring of a composite structure.

The technical solution adopted by the present invention is: a sub-mother surgical anastomosis magnetic ring, comprising a sub-ring and a parent ring, wherein the sub-ring and the parent ring are both elliptical or circular ring structures, and the sub-rings and The female ring is connected to each other by two or more snap structures disposed on the female ring, and the female ring is formed with a discontinuous groove on a ring surface contacting the sub-ring, and the outer periphery of the annular surface A press bevel is formed on the surface.

The female ring includes an elliptical or circular female ring sleeve made of a magnetic conductive material or titanium, and an elliptical or circular mother magnetic ring composed of a magnetic material corresponding to the female ring sleeve. The female ring sleeve is an annular U-slot structure, the female magnetic ring is embedded in the annular U-slot structure, and the discontinuous groove, the press bevel and the buckle structure are formed on The corresponding sleeve surface of the female ring sleeve.

The thickness of the bottom surface of the female ring sleeve of the annular U-groove structure is 0.1 mm to 5 mm.

The buckle structure comprises a post and a chuck integrally formed on the top of the post for clamping the sub-ring located above the female ring, wherein the bottom end of the post is fixed to the female ring sleeve connection.

The bottom end of the chuck forms a right angle structure with the inner side of the post.

The bottom end of the post is fixedly connected to the inner side or the outer side of the female ring sleeve.

The sub-ring includes an elliptical or circular sub-ring sleeve made of a magnetically permeable material and an elliptical or circular sub-magnetic ring composed of a magnetic material corresponding to the sub-ring sleeve, The sub-ring sleeve is an annular U-groove structure, and the sub-magnetic ring is embedded in the annular U-groove structure.

The thickness of the bottom surface of the sub-ring sleeve of the annular U-groove structure is 0.1 mm to 5 mm.

When the sub-ring and the female ring adopt an elliptical structure, the two or more snap structures are respectively disposed on the inner circumferential surface or the outer circumferential surface of the female ring sleeve of the elliptical female ring.

When the sub-ring and the female ring adopt a circular structure, the two or more snap structures are respectively disposed on the inner circumferential surface or the outer circumferential surface of the female ring sleeve of the circular female ring.

The thickness of the mother ring is 1 to 10 mm.

The child-surgical surgical anastomosis magnetic ring of the invention has the following effects:

1. The present invention uses an elliptical or circular magnetic ring for supraorbital mucosal resection of a patient with acne, a low node, a rectal resection or an circumcision;

2. The invention utilizes a metal with good magnetic permeability (for example, 1J22 special steel) as a contact surface between the magnetic rings, and coats the magnetic ring with a special steel or a titanium shell to improve the overall firmness. Solved the difficulty of processing strong magnetic materials (such as NdFeB) and easily collapse Defects of the solution. Due to the existence of a magnetically conductive metal contact surface, even after the magnetic ring of the patent is cracked, due to the existence of the contact surface, the magnetic ring can be ensured not to disintegrate, and is still firmly attracted to the contact surface, and the magnetic force is not significantly attenuated, thereby improving The safety of the anastomosis magnetic ring significantly improves its clinical application value; the metal contact surface between the magnetic rings prevents the magnetic force from being healed and thinned with the tissue between the magnetic rings, and the magnetic force is rapidly increased, thereby helping to prevent the magnetic ring from falling off prematurely. ;

3. The invention relies on the anti-decoupling structure to solve the problem that the magnetic ring magnetic force is too large to cause premature detachment, and the magnetic force is too small to directly cause the magnetic ring to be disengaged; and the buckle structure can be appropriately relieved while ensuring safety. The weight of the magnetic ring reduces the volume and makes it lighter, which significantly improves the clinical application value; the buckle structure also helps the accurate alignment between the magnetic rings and prevents misalignment.

4. The mother-and-child design of the present invention, the same sub-magnetic ring is equipped with a series of female magnetic rings of the same diameter and thickness, and the corresponding sub-magnetic rings are selected according to the specific conditions of the patient and the thickness of the tissue, which is more reasonable;

5. The invention adopts an asymmetric structure (that is, one side of the magnetic ring has a discontinuous notch and the other side of the magnetic ring has no discontinuous notch), and the structure is easier to achieve precise matching, and avoids the misalignment of the magnetic ring gaps on both sides. Shortcomings;

6. The invention firstly utilizes the magnetic matching of the same shape to accurately match the characteristics of the automatic matching in the three-dimensional space, and then relies on the anti-decoupling structure to prevent distortion or misalignment between the magnetic rings and improve the accuracy of the matching.

7. The invention relies on a plurality of notches on one side ring to form a discontinuous anastomosis, which not only can improve the blood supply of the anastomosis, but also prevent the tissue of the intestinal wall clamped by the magnetic ring from slipping and improve the healing quality of the anastomosis.

8. The invention relies on the inclined surface structure of the outer edge of the magnetic ring to form an anastomotic pressure gradient, and reduces the sharp edge of the magnetic ring of the right-angled structure for the tissue cutting. At the same time, the firming of the anastomosis mouth facilitates the healing of the lateral tissue of the anastomosis, and the formation is avoided. The shortcomings of pressing too fast help to improve the quality of anastomosis healing.

9. The invention may be elliptical or circular in structure. If the elliptical structure is adopted, it is not only closer to the physiological state of the human body and rectum, but also more in line with the physiological characteristics of the pelvic cavity and the rectum. Moreover, the oval magnetic ring is more likely to discharge the anus than the circular magnetic ring after being detached; Stimulation of the rectal wall and anus, increasing the structural stability;

10. The invention can rely on the elliptical streamlined shape to smoothly discharge through the anus, the structural stability is obviously increased, and the processing and manufacturing process is obviously simplified.

DRAWINGS

Figure 1 is a schematic view of the overall structure of the present invention;

Figure 2 is a side view of the structure of Figure 1;

Figure 3 is a partial enlarged view of Figure 1;

Figure 4 is a schematic structural view of a mother ring in the present invention;

Figure 5 is a schematic view showing the structure of a neutron ring of the present invention;

Figure 6 is a schematic exploded view of the mother ring of the present invention;

Figure 7 is a schematic structural view of the buckle structure of the present invention;

Figure 8 is a schematic exploded view of the sub-ring of the present invention;

Figure 9 is a schematic view of the overall structure of the present invention;

Figure 10 is a schematic view showing the structure of the mother ring and the sub-ring before the mating of the present invention;

Figure 11 is a schematic view showing the structure of the mother ring and the sub-ring of the present invention;

Figure 12 is a schematic view showing the working state of the elliptical mother-child acne anastomosis magnetic ring of the present invention;

Figure 13 is a schematic view of a circular magnetic ring in the intestine;

Figure 14 is a schematic illustration of an elliptical magnetic ring in the intestine.

1: subring 2: parent ring

3: buckle 31: the post

32: chuck 4: right angle structure

5: Torus 6: Intermittent slot

7: Pressing bevel 8: Female ring cover

9: female magnetic ring 10: sub-ring set

11: sub-magnetic ring 12: rectal wall

A: Magnetic ring B: Intestinal wall

detailed description

A sub-mother surgical anastomosis magnetic ring of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 and FIG. 5 , a sub-mother surgical anastomosis magnetic ring of the present invention includes a sub-ring 1 and a parent ring 2, and the sub-ring 1 and the parent ring 2 are both In the case of an elliptical or circular ring structure, the sub-ring 1 and the parent ring 2 are connected to each other by two or more snap structures 3 disposed on the mother ring 2, the parent ring 2 being A discontinuous groove 6 is formed in the toroidal surface 5 in contact with the ring 1, and a press bevel 7 is formed on the outer periphery of the annular surface 5.

The thickness of the mother ring 2 is 1 to 10 mm. By setting the mother ring 2 of different thicknesses, one sub-ring 1 can be equipped with a series of mother rings of the same diameter and different thicknesses. In this way, it is more reasonable to select the corresponding magnetic ring according to the specific conditions of the patient and the thickness of the tissue. The invention relies on a plurality of interrupted grooves 6 on one side ring to form a discontinuous anastomosis, which not only improves the blood supply to the anastomosis, but also prevents the tissue of the intestinal wall and the sub-ring from being slipped off. Relying on the structure of the pressing bevel 7 on the outer edge of the mother ring, the pressure gradient of the anastomosis is formed, and the sharp edge of the magnetic ring is reduced for the tissue cutting, and the anastomosis of the anastomosis is facilitated while the anastomosis of the anastomosis is firmly pressed, so as to avoid the pressing too fast. Disadvantages help to improve the quality of anastomotic healing.

In the normal physiological state of the human body, the rectum and the rectum are not absolutely circular, and are oval-like due to the influence of the pelvic structure and distortion. The invention may be an elliptical or circular structure. If the sub-ring 1 and the parent ring 2 are both elliptical annular structures, not only are they closer to the human body, the rectal physiological state, but also the pelvic cavity and rectal distortion. The physiological characteristics, relying on the elliptical streamlined shape through the colorectal lumen and anus, the oval magnetic ring is more likely to discharge the anus than the circular magnetic ring, avoiding the defect that the circular magnetic ring is not easy to discharge. It can be seen from Fig. 13 and Fig. 14 that the elliptical magnetic ring with the same cross-sectional area is compared with the circular magnetic ring (the stimulation of the dilatation of the intestinal wall is reduced; the streamline type is closer to the intestinal lumen).

As shown in FIG. 4 and FIG. 6, the mother ring 2 includes an elliptical or circular mother ring sleeve 8 made of a magnetic conductive material or titanium, and a magnetic material corresponding to the mother ring sleeve 8. The elliptical or circular female magnetic ring 9 is formed, and the female ring sleeve 8 is an annular U-groove structure, and the bottom surface of the female ring sleeve 8 of the annular U-groove structure has a thickness of 0.1 mm to 5 mm. The female magnetic ring 9 is embedded in the annular U-groove structure, and the intermittent groove 6, the pressing inclined surface 7 and the snap structure 3 are formed on the female ring sleeve 8 On the corresponding set.

As shown in FIG. 2, FIG. 7, and FIG. 9, the buckle structure 3 includes a post 31 and a chuck 32 integrally formed on the top end of the post 31 for clamping the sub-ring 1 located above the female ring 2, wherein The bottom end of the post 31 is fixedly connected to the female ring sleeve 8. The bottom end of the chuck 32 forms a right angle structure 4 with the inner side of the post 31. The bottom of the post 31 The end is fixedly connected to the inner side or the outer side of the female ring sleeve 8.

As shown in FIG. 8, the sub-ring 1 includes an elliptical or circular sub-ring 10 made of a magnetically permeable material and an elliptical or magnetic material corresponding to the sub-ring 10 or The circular sub-magnetic ring 11 is an annular U-groove structure, and the bottom surface of the sub-ring 10 of the annular U-groove structure has a thickness of 0.1 mm to 5 mm. The sub-magnetic ring 11 is embedded in the annular U-groove structure.

In the present invention, when the sub-ring 1 and the female ring 2 have an elliptical structure, the two or more snap structures 3 are respectively disposed on the inner circumferential surface of the female ring sleeve 8 of the elliptical female ring 2 or On the outer peripheral surface.

In the present invention, when the sub-ring 1 and the female ring 2 have a circular structure, the two or more snap structures 3 are respectively disposed on the inner circumferential surface of the female ring sleeve 8 of the circular mother ring 2 or On the outer peripheral surface.

Since the bottom surface of the mother ring sleeve 8 and the sub-ring sleeve 10 which are made of a strong magnetic conductive material has a certain thickness (0.1 mm - 5 mm), the mother magnetic ring 9 and the sub magnetic ring 11 are firmly attracted to each other. On the opposite side, it is wrapped by the ring set. Thus, even if the magnetic ring is disintegrated, the phenomenon of disengagement or a significant decrease in magnetic force does not occur, and the stability and safety of the magnetic ring are increased.

In the embodiment of the present invention, the buckle structure 3 is designed at both ends of the long axis of the elliptical sub-ring 1 and the parent ring 2, so that the magnetic force can be effectively prevented from being too strong or too weak, and the magnetic ring can be prevented from being excessively weak, resulting in the magnetic ring falling off before the healing. And can prevent the magnetic force from being too weak to cause the magnetic ring to disengage. Therefore, while ensuring safety, the buckle structure 3 can also appropriately reduce the weight of the magnetic ring, reduce the volume, and make it more portable.

As shown in FIG. 10 and FIG. 11, in the process of the magnetic ring being engaged, the first embodiment of the latching structure 3 contacts the lower side of the inner side of the sub-ring 1. After the squeeze, the post 31 is slightly deformed, and the chuck 32 is parallel to the magnetic ring 1. The inner side surface slides from the lower side of the inner side of the sub-ring 1 to the upper side of the sub-ring 1 and then is elastically attached to the sub-ring 1 by the post 31, even if the sub-ring 1 is embedded in the chuck 32, the post 31 and the female The groove formed by the ring 2 is fixed and aligned. The invention relies on the buckle structure of the anti-offset, solves the problem that the magnetic force of the magnetic ring is too large, which is easy to cause premature fall off, and the magnetic force is too small, which directly causes the magnetic ring to be disengaged; and the buckle structure can also reduce the magneticity while ensuring safety. The weight of the ring reduces the volume and makes it lighter, which significantly improves the clinical application value; the buckle structure also helps the accurate alignment between the magnetic rings and prevents misalignment.

The invention utilizes a magnetically conductive steel (for example, 1J22 special steel) as a contact surface of the stapler, and is wrapped with a titanium shell to improve the overall firmness of the stapler, and solves the problem that the ferromagnetic material (such as NdFeB) is difficult to process and is easily disintegrated. The defect can be safely anastomosed even after cracking inside the magnetic ring, which improves the safety of the anastomotic ring and significantly improves the clinical application value.

The invention has a composite structure of a mother-surgical surgical anastomosis magnetic ring, which can be used for supraorbital mucosal resection or colorectal anastomosis, and has the following advantages: (1) the anastomosis is smooth and complete, the serosa is flat and the anastomosis is in the Tissue healing covers a uniform margin of anastomotic stoma, so it is an ideal method of anastomosis close to the natural state. (2) The use of non-penetrating anastomosis technology, combined with the protective effect of the anastomotic ring, is conducive to the prevention of contamination of the contents of the intestinal lumen. (3) Avoid the risk of anastomotic leakage or bleeding caused by the titanium nail gap; (4) The size of the anastomosis formed by the press anastomosis ring is determined by the outer diameter of the titanium stapler, and the size of the anastomosis of the titanium stapler is determined by its inner diameter. And the arrangement of the staples itself can lead to stenosis, so the anastomosis formed by the press ring is larger than that of the metal stapler under the same caliber, so the press anastomosis is less prone to intestinal stenosis; (5) There is no foreign body residue: Postoperative 1 Around the circumference, the magnetic ring is discharged with the stool, without any foreign matter remaining, which minimizes the degree of inflammatory stimulation and tissue fibrosis, reduces the incidence of anastomotic stenosis, and has good anastomotic compliance; (6) Simplifies the manufacturing process of the stapler and reduces Cost of stapler manufacturing; (7) Avoid dangerous complications caused by nail removal from titanium nails.

The working principle of the present invention will be described below with reference to Figs. 10 to 14:

In the present embodiment, the sub-ring 1 has a fixed diameter and a thickness, and the female ring 2 has a plurality of the same diameters and different thicknesses from the sub-ring 1, so that the magnetic force formed by the pairing with the female ring is also different. During the operation, according to the comprehensive factors such as the thickness and age of the rectal wall of the patient, the mother ring 2 with the corresponding thickness and magnetic force is selected. The specific use process is as follows:

1) According to the thickness of the patient's tissue and the specific conditions during the operation, select the sub-mesh combined magnetic ring of the corresponding thickness

2) The anus is expanded according to the conventional method, and the suture is placed, and the purse string is sutured 2-6 cm above the dentate line;

3) The parent ring 2 is placed into the rectum through the anal dissipator, and the purse string is tightened to reveal the buckle head 32;

4) The sub-ring 1 is placed, and then the parent ring 2 and the sub-ring 1 are aligned, and the snap-fit structure 3 is engaged;

5) The buckle structure 3 is in the process of the magnetic ring merging, firstly the chuck 32 contacts the inner side of the sub-ring 1 and the post 31 is slightly deformed after being squeezed, and the chuck 32 is adjacent to the inner side of the magnetic ring 1 by the sub-ring 1 The lower side of the inner side slides to the upper side of the inner side of the sub-ring 1, and then the card post 31 is elasticized and firmly clamped on the sub-ring 1 to complete the fixing and the matching.

6) Excision of excess acne tissue in the magnetic ring;

7) relying on the magnetic attraction force formed by the sub-ring 1 and the parent ring 2, and the protection of the buckle structure 3, pressing the rectal mucosa and the submucosa 12 to gradually necrosis, and then pressing on the sub-ring 1 and the parent ring 2 The outer side of the anastomosis gradually forms an anastomosis;

8) About 1 week after surgery, the sub-ring 1 and the parent ring 2 fall off and are excreted with the feces.

Claims

A sub-mother surgical anastomosis magnetic ring comprising a sub-ring (1) and a parent ring (2), wherein the sub-ring (1) and the parent ring (2) are both elliptical or circular ring structures The sub-ring (1) and the parent ring (2) are connected to each other by two or more snap structures (3) provided on the female ring (2), and the female ring (2) is A discontinuous groove (6) is formed in the annular surface (5) where the sub-ring (1) is in contact, and a press bevel (7) is formed on the outer periphery of the annular surface (5).
A female-female surgical anastomotic magnetic ring according to claim 1, wherein said mother ring (2) comprises an elliptical or circular female ring sleeve (8) made of a magnetic conductive material or titanium. And an elliptical or circular female magnetic ring (9) made of a magnetic material corresponding to the female ring sleeve (8), the female ring sleeve (8) being an annular U-groove structure, a female magnetic ring (9) is embedded in the annular U-groove structure, and the intermittent groove (6), the press bevel (7) and the snap structure (3) are formed in the The corresponding sleeve of the female ring sleeve (8).
A child-surgical surgical anastomosis magnetic ring according to claim 2, wherein the annular shape of the female ring sleeve (8) of the annular U-groove structure has a thickness of 0.1 mm to 5 mm.
A sub-mother surgical anastomosis magnetic ring according to claim 1 or 2, characterized in that the snap structure (3) comprises a post (31) and is integrally formed at the top end of the post (31) for The chuck (32) of the sub-ring (1) located above the female ring (2) is caught, wherein the bottom end of the post (31) is fixedly connected to the female ring sleeve (8).
A sub-mother surgical anastomosis magnetic ring according to claim 4, wherein the bottom end of the chuck (32) forms a right-angled structure (4) with the inner side of the post (31).
A sub-mother surgical anastomosis magnetic ring according to claim 4, characterized in that the bottom end of the post (31) is fixedly connected to the inner side or the outer side of the female ring sleeve (8).
A sub-mother surgical anastomosis magnetic ring according to claim 1, wherein said sub-ring (1) comprises an elliptical or circular sub-ring sleeve (10) composed of a magnetically permeable material and The sub-ring sleeve (10) corresponds to an elliptical or circular sub-magnetic ring (11) made of a magnetic material, and the sub-ring sleeve (10) is an annular U-groove structure, the sub-magnetic A ring (11) is inlaid into the annular U-groove structure.
The sub-mother surgical anastomosis magnetic ring according to claim 1, wherein the sub-ring sleeve (10) of the annular U-groove structure has a bottom surface thickness of 0.1 mm to 5 mm.
A sub-mother surgical anastomosis magnetic ring according to claim 1, wherein when said sub-ring (1) and said female ring (2) adopt an elliptical structure, said two or more snaps The structure (3) is respectively disposed on the inner circumferential surface or the outer circumferential surface of the female ring sleeve (8) of the elliptical female ring (2).
A sub-mother surgical anastomosis magnetic ring according to claim 1, wherein when said sub-ring (1) and said female ring (2) adopt a circular structure, said two or more snaps The structure (3) is respectively disposed on the inner circumferential surface or the outer circumferential surface of the female ring sleeve (8) of the circular mother ring (2).
A sub-mother surgical anastomosis magnetic ring according to claim 1, wherein said mother ring (2) has a thickness of 1 to 10 mm.