阅读说明：本技术 一种血管支撑环及血管支撑环组件 (Blood vessel support ring and blood vessel support ring assembly ) 是由 余翔 顾尚梅 余君艳 余飞 于 2021-08-30 设计创作，主要内容包括：本申请实施例涉及医疗技术领域,尤其是涉及一种血管支撑环及血管支撑环组件；本申请实施例提供的血管支撑环,包括分离部,本申请实施例通过设置分离部,从而防止血管的内膜黏在一起,也就是说,通过设置分离部,从而将血管相互黏连的内膜从血管管腔内分开,使血管内膜保持间隙,从而解决现有技术中,当人们在进行血管吻合时,容易贯穿对侧血管壁的技术问题,进而提高血管吻合的成功率；另外,本申请实施例结构简单,操作方便,可以调节2个吻合端的大小,使得吻合端管径一致,方便、快速的修剪血管断端及外膜周围的组织,降低吻合血管的难度,且缝合血管后可予以修剪以去除支撑环,另外,血管内膜外翻均匀。(The embodiment of the application relates to the technical field of medical treatment, in particular to a blood vessel supporting ring and a blood vessel supporting ring assembly; the blood vessel support ring that this application embodiment provided, including the separator, this application embodiment is through setting up the separator to prevent that the inner membrance of blood vessel from gluing together, that is to say, through setting up the separator, thereby the inner membrance that glues each other with the blood vessel separates from the blood vessel lumen, makes the blood vessel inner membrance keep the clearance, thereby solves among the prior art, when people when carrying out the vascular anastomosis, runs through the technical problem of contralateral vascular wall easily, and then improves the anastomotic success rate of blood vessel; in addition, the embodiment of the application has simple structure and convenient operation, can adjust the size of 2 anastomotic ends, ensures that the diameters of the anastomotic ends are consistent, conveniently and quickly trims the broken ends of the blood vessel and tissues around the adventitia, reduces the difficulty of anastomotic blood vessel, trims the blood vessel to remove the support ring after suturing the blood vessel, and ensures that the blood vessel intima is everted uniformly.)

1. A vessel support ring (1), comprising:

a separation part (11) for preventing the intima of the blood vessel from sticking together.

2. The vessel support ring (1) according to claim 1, wherein said separation portion (11) has a lumen, said separation portion (11) being adapted to be connected to the intima of the vessel, the volume of said separation portion (11) within the vessel being capable of expanding when said lumen is filled with gas or liquid to jack up the intima of the vessel.

3. The vessel support ring (1) according to claim 1, wherein the separation portion (11) is ring-shaped.

4. The vessel support ring (1) according to claim 2, wherein at least a portion of a side of the separation portion (11) facing the vessel is provided with a slip-preventing structure (12).

5. The vessel support ring (1) according to claim 4, wherein said anti-slip structure (12) is serrated.

6. The vessel support ring (1) according to any of claims 5, further comprising a fixation structure (13), said fixation structure (13) being used for fixing the separation portion (11) with the vessel, said fixation structure (13) being provided on the separation portion (11) and/or the anti-slip structure (12).

7. The vessel support ring (1) according to claim 2, further comprising an adjustment mechanism (14), said adjustment mechanism (14) being in communication with said lumen of said separation portion (11), said adjustment mechanism (14) being adapted to expand or contract the volume of said separation portion (11).

8. The vessel support ring (1) according to claim 7, further comprising a controller (15), said controller (15) being connected with said adjusting mechanism (14).

9. A vascular support ring (1) assembly, comprising:

the vessel supporting ring (1) according to any of claims 1 to 8, the number of said vessel supporting rings (1) being at least 2;

at least 2 of the blood vessel supporting rings (1) are magnetically attracted.

10. The assembly of a vessel support ring (1) according to claim 9, further comprising an everting structure (2), the everting structure (2) being for moving the vessel support ring (1) located within a vessel out of the vessel.

Technical Field

The embodiment of the application relates to the technical field of medical treatment, in particular to a blood vessel supporting ring and a blood vessel supporting ring assembly.

Background

Blood vessels refer to a series of conduits through which blood flows. Blood vessels are located throughout the body, except for the cornea, hair, nails, dentin, and epithelium. The blood vessels are classified into arterial blood vessels, venous blood vessels and capillary blood vessels according to different structural functions.

The blood vessels of the human body are communicated with each other through the artery-capillary-vein, and the blood vessels can be directly communicated with each other between the artery, the vein and the vein, even between the artery and the vein, so that the blood vessel anastomosis is formed.

Taking microsurgery as an example, when a blood vessel is anastomosed in a microscopic manner, good matching of a main knife and an assistant is usually required, and the adventitia is separated and trimmed for a long time before anastomosis. Because the blood vessel is in spasm state, the vessel wall is collapsed, the intima is overlapped (also called as the intima is stuck together), the vessel diameter is small, and the like, the blood vessel often easily penetrates through the contralateral vessel wall during the anastomosis of the blood vessel.

Disclosure of Invention

The embodiment of the application provides a blood vessel support ring and blood vessel support ring subassembly to at least, solve prior art, when people's blood vessel kiss, run through the technical problem of contralateral vascular wall easily.

In a first aspect, an embodiment of the present application provides a blood vessel support ring, including:

a separation part for preventing the intima of the blood vessel from sticking together.

In one implementation, the separation portion has a lumen for connection to the intima of the vessel, and when the lumen is filled with gas or liquid, the volume of the separation portion within the vessel can be increased to jack up the intima of the vessel.

In one implementation, the separation portion is annular.

In one implementation, at least a portion of a side of the separation portion facing the blood vessel is provided with a slip-resistant structure.

In one implementation, the anti-slip structure is serrated.

In one implementation, the blood vessel separation device further comprises a fixing structure, the fixing structure is used for fixing the separation part and the blood vessel, and the fixing structure is arranged on the separation part and/or the anti-skid structure.

In one implementation mode, the device further comprises an adjusting mechanism, the adjusting mechanism is communicated with the inner cavity of the separation part, and the adjusting mechanism is used for expanding or reducing the volume of the separation part.

In one implementation, the device further comprises a controller, and the controller is connected with the adjusting mechanism.

In a second aspect, embodiments of the present application provide a vessel support ring assembly comprising:

the number of the blood vessel supporting rings is at least 2;

at least 2 blood vessel supporting rings are magnetically attracted.

In one implementation, the vessel support ring further comprises an everting structure for moving the vessel support ring located within the vessel out of the vessel.

Advantageous effects

The utility model provides a blood vessel support ring, including the separation part, this application embodiment is through setting up the separation part, thereby prevent that vascular intima from gluing together, that is to say, through setting up the separation part, thereby overlap blood vessel each other, the intima of adhesion separates from the vascular lumen, make the vascular intima keep the clearance, thereby solve among the prior art, when people are carrying out the vascular anastomosis, run through the technical problem of contralateral vessel wall easily, and then improve the anastomotic success rate of blood vessel, avoid in the suture process, because of running through the blood vessel to the lateral wall and cause the nevertheless bloody condition of anastomotic end to take place.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a blood vessel support ring provided in an embodiment of the present application at 1 angle;

fig. 2 is a schematic structural view of another 1-degree angle of the blood vessel supporting ring provided in the embodiment of the present application, wherein the blood vessel supporting ring is disposed at the end of the broken end, and the blood vessel supporting ring is located in the blood vessel cavity;

FIG. 3 is a view showing that when the lumen of the separation part in FIG. 2 is filled with gas or liquid, the volume of the separation part in the blood vessel can be increased to push up the intima of the blood vessel, such as forming a flare at the end of the broken end;

FIG. 4 is a schematic structural diagram of another example of a blood vessel support ring provided in an embodiment of the present application;

FIGS. 5-9 are schematic structural views of 4 different examples of a retractor needle according to embodiments of the present application;

FIG. 10 is a schematic structural diagram illustrating a further example of a blood vessel support ring according to an embodiment of the present application;

fig. 11 is a schematic structural view of a blood vessel support ring assembly according to an embodiment of the present application in actual use, wherein 2 blood vessel support rings shown in fig. 11 are magnetically attracted;

fig. 12-15 are schematic views of the blood vessel support ring assembly provided by the embodiment of the present application in actual use, fig. 12 can be understood as a top view direction, fig. 13-15 can be understood as a front view direction, and fig. 12-15 can be understood in a sequential order, that is, a process in which the position of the blood vessel support ring is moved (e.g., everted) when one pulls a pull wire away from one end of a pull needle.

Description of reference numerals:

1. a blood vessel support ring; 11. a separation section; 12. an anti-slip structure; 13. a fixed structure; 14. an adjustment mechanism; 15. a controller;

2. an everting structure; 21. a traction needle; 211. a barb; 22. and (6) pulling the wire.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for convenience in describing the embodiments of the present application and for simplification of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

Generally, a blood vessel refers to a series of conduits through which blood flows. Blood vessels are located throughout the body, except for the cornea, hair, nails, dentin, and epithelium. The blood vessels are classified into arterial blood vessels, venous blood vessels and capillary blood vessels according to different structural functions.

The blood vessels of the human body are communicated with each other through the artery-capillary-vein, and the blood vessels can be directly communicated with each other between the artery, the vein and the vein, even between the artery and the vein, so that the blood vessel anastomosis is formed.

Taking microsurgery as an example, when a blood vessel is anastomosed in a microscopic manner, good matching of a main knife and an assistant is usually required, and the adventitia is separated and trimmed for a long time before anastomosis. Because the blood vessel is in a spastic state, the vessel wall is collapsed, the intima is overlapped (also called as the intima is stuck together), the vessel diameter is small, and the like, the blood vessel often easily penetrates through the contralateral vessel wall during the anastomosis of the blood vessel.

In order to solve the above problems, the embodiment of the present application provides a blood vessel support ring and a blood vessel support ring assembly, which are configured with a separation portion, so as to separate the blood vessels from the lumens of the blood vessels, and keep the intima of the blood vessels in a gap, thereby solving the technical problem that when people perform vascular anastomosis, the intima of the blood vessels easily penetrates through the blood vessel on the opposite side, so as to improve the success rate of vascular anastomosis, and avoid the situation that the anastomosis end is not free of blood due to the fact that the blood vessels penetrate through the opposite side wall in the suturing process.

The blood vessel support ring of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a blood vessel support ring 1 provided in an embodiment of the present application at 1 angle;

fig. 2 is a schematic structural diagram of another 1 structure of the blood vessel supporting ring 1 according to the embodiment of the present application, wherein the blood vessel supporting ring 1 is disposed at the end of the broken end, and the blood vessel supporting ring 1 is located in a blood vessel; fig. 3 is a view showing that when the lumen of the separation part 11 in fig. 2 is filled with gas or liquid, the volume of the separation part 11 in the blood vessel can be increased to push up the blood vessel intima, such as forming a flare at the end of the broken end. Referring to fig. 1-3, a blood vessel support ring 1 provided by the embodiment of the present application includes a separation portion 11, where the separation portion 11 is used to prevent intima from adhering together, and the technical solution of the embodiment of the present application is to provide the separation portion 11 to prevent intima from adhering together, that is, to provide the separation portion 11 to separate the intima from the lumen of the blood vessel, so as to keep the intima in a gap.

With continued reference to fig. 1-3, the separating portion 11 may have a lumen, the separating portion 11 being adapted to be connected to the intima of the blood vessel, and when the lumen is filled with gas or liquid, the volume of the separating portion 11 within the blood vessel can be increased to lift the intima of the blood vessel, as shown in detail in fig. 3. For example, in a particular application, the separation portion 11 including the lumen may be placed within the severed end of the blood vessel, and the separation portion 11 may be inflated by inflating/filling the lumen, e.g., by injecting saline through a syringe into the lumen, such that when the separation portion 11 is inflated, the blood vessel will be inflated by the separation portion 11, thereby rapidly separating the stuck intima of the blood vessel, such that when one sutures the blood vessel, one will not suture the contralateral wall.

As shown in fig. 1 to 3, the separating portion 11 may be annular, and by forming the separating portion 11 to be annular as a whole, it is easy to take, that is, compared with the separating portion 11 having a spherical shape or the like, the separating portion 11 is formed to be annular, so that it is possible to prevent people from taking it; on the other hand, since the whole annular separation part 11 is generally hollow, and not all the blood vessels of the patient have a perfect circular cross section, for example, the cross section of the blood vessels of some patients is elliptical, by setting the whole annular separation part 11 to have a substantially hollow structure, the degree of deformability is easier than that of a sphere, so that the separation part 11 can be better adapted to blood vessels of different shapes (such as elliptical cross section) and sizes during inflation, the separation part 11 can be attached to the periphery of the blood vessel intima, and thus the separation part 11 is not easy to slip off from the blood vessel intima; in addition, the material is saved.

It is understood that the cross-section of the annular separation portion 11 may be circular, triangular, 4-sided, 5-sided, etc.

It is understood that in other examples, the separation portion 11 may be a ball or other suitable structure as long as it can lift the vessel bulge/the vessel intima.

It is understood that in other examples, the separation portion 11 may be a balloon structure such as a balloon, and of course, other suitable structures besides a balloon may be used as long as the intima of the blood vessel can be expanded/swollen to have a gap between the intima of the blood vessel.

In other examples, the separation portion 11 may be used to connect with the adventitia, that is, the separation portion 11 may be sleeved outside the blood vessel, and the effect of preventing the intima from sticking together may also be achieved.

Fig. 4 is a schematic structural diagram of another example of the blood vessel support ring 1 provided in the embodiment of the present application, and referring to fig. 4, at least a portion of a side of the separation portion 11 facing a blood vessel is provided with an anti-slip structure 12; in actual use, the anti-slip structure 12 is provided to increase friction force between the separation part 11 and the vascular intima, thereby achieving an anti-slip effect.

With continued reference to FIG. 4, the non-slip structure 12 may be serrated; for example, in order to prevent the serrated anti-slip structure 12 from damaging the intima of the blood vessel, as an alternative implementation manner, referring to fig. 4, the serrations may be arranged in an inverted manner on one circumference of the side of the separation portion 11 facing the blood vessel, or of course, only a part of one circumference thereof, and it is understood that, since the serrations are arranged in an inverted manner on one circumference of the side of the separation portion 11 facing the blood vessel, in order to prevent the serrated anti-slip structure 12 from puncturing the separation portion 11, in other words, to prevent the apex angle of the triangle in fig. 4 from puncturing the separation portion 11, in one example, the separation portion 11 may be made of a conventional rubber material, i.e., the separation portion 11 made of a rubber material, such as a medical silicon rubber, or a conventional natural rubber material; in addition, in an example, it is also possible to provide a rubber layer on the above-mentioned separated portion 11, for example, wrap the rubber layer on the separated portion 11, and then provide the anti-slip structure 12 on the rubber layer.

In other examples, a silicone layer or a protrusion (e.g., 4-sided polygon, 5-sided polygon, or 6-sided polygon in cross section) may be provided on the side of the separation portion 11 facing the blood vessel, so as to provide the anti-slip function as an alternative to the anti-slip structure 12.

It can be seen that the shape of the anti-slip structure 12 is not limited to a specific shape, and may be a saw-toothed shape, or some protrusions with cross-sections of 4-sided polygon, 5-sided polygon, or 6-sided polygon, or a conventional silicone layer.

With continued reference to fig. 4, the blood vessel support ring 1 provided in the embodiment of the present application may further include a fixing structure 13, the fixing structure 13 is used to fix the separation portion 11 with the blood vessel, the fixing structure 13 is disposed on the separation portion 11 and/or the anti-slip structure 12, and the fixing structure 13 is disposed on the anti-slip structure 12.

In a specific application, the separation part 11 with the fixing structure 13 can be placed in the broken end of the blood vessel, and then the inner cavity of the separation part 11 is filled with gas or liquid, when the inner cavity is filled with gas or liquid, the volume of the separation part 11 in the blood vessel can be increased, because the fixing structure 13 is arranged on the separation part 11 and/or the anti-slip structure 12, for example, the fixing structure 13 is arranged on the anti-slip structure 12, the fixing structure 13 can also move towards the outside of the blood vessel along with the increase of the volume of the separation part 11, so that the blood vessel wall is punctured, and the separation part 11 is fixed with the blood vessel.

Thus, by providing the fixing structure 13, the separation portion 11 is prevented from slipping on the intima of the blood vessel, for example, when the separation portion 11 is inflated with gas or liquid into the lumen, the volume of the separation portion 11 becomes large, and when the friction force between the separation portion 11 and the intima of the blood vessel is small, the separation portion 11 slips on the intima of the blood vessel.

In which, by way of example, figures 5-9 illustrate different embodiments of the fixing structure 13.

Fig. 10 is a schematic structural diagram of another example of the blood vessel supporting ring 1 provided in the embodiment of the present application, and referring to fig. 10, the blood vessel supporting ring 1 provided in the embodiment of the present application may further include an adjusting mechanism 14, for example, the adjusting mechanism 14 may be an injection pot, the adjusting mechanism 14 is in communication with the inner cavity of the separation part 11, and the adjusting mechanism 14 is used for expanding or contracting the volume of the separation part 11.

For example, the adjustment mechanism 14 may be an injection device or an insufflation device; for example, the liquid injection device or the gas injection device, which may be a pump, injects liquid or gas into the inner chamber of the separation section 11 through the communication pipe; for example, the adjustment mechanism 14 may be another suitable structure such as a syringe, as long as the volume of the separation section 11 can be increased or decreased.

In other examples, still can set up the scale mark at the extending direction (like axial direction) on communicating pipe, through setting up the scale mark, can play 2 effects: firstly, in the liquid injection process, liquid can flow through the liquid injection pipe, so that people can conveniently observe the amount of the liquid injected into the air bag by the liquid injection device by setting scale marks, so that people can conveniently determine the preset value when the separation part 11 bulges, and further the damage caused by the fact that the blood vessel bulges too much due to the fact that the amount of the injected liquid is too large is avoided by taking the preset value as a reference; secondly, people can be convenient for start and stop the priming device and refer to, for example, the accessible is observed the position of liquid at the scale mark to control priming device and start and stop at suitable time.

With continued reference to fig. 10, the blood vessel support ring 1 provided in the embodiments of the present application may further include a controller 15, wherein the controller 15 is connected to, e.g., electrically connected to, the liquid injection device, or the controller 15 is connected to the gas injection device; in practical use, the controller 15 is arranged, so that the control is convenient for people to control; for convenience of description, the balloon is taken as the separating portion 11 for illustration, for example, the embodiment of the present application may set a preset value of the blood vessel being inflated by the balloon on the controller 15, so that the balloon can inflate the blood vessel just, for example, the blood vessel can be stopped after 1 flare is formed at the broken end of the blood vessel (see the right side of fig. 3), and the risk of the blood vessel being damaged due to the too large volume of the balloon is prevented.

Fig. 11 is a schematic structural view of an assembly of the blood vessel supporting ring 1 according to an embodiment of the present application in practical use, wherein 2 blood vessel supporting rings 1 illustrated in fig. 11 are magnetically attracted; fig. 12 to 15 are schematic structural views of the blood vessel support ring 1 assembly provided in the embodiment of the present invention in practical use, fig. 12 can be understood as a top view direction, fig. 13 to 15 can be understood as a front view direction, and fig. 13 to 15 can be understood in a sequential order, that is, as a process of the blood vessel support ring 1 being displaced (e.g., turned inside out) when one pulls the pulling wire 22 away from one end of the pulling needle 21, and as shown in fig. 11 to 15, the embodiment of the present invention further provides a blood vessel support ring 1 assembly including the above blood vessel support rings 1, wherein the number of the blood vessel support rings 1 is at least 2; at least 2 blood vessel supporting rings 1 are magnetically attracted; taking 2 blood vessel supporting rings 1 as an example, for convenience of description, the 2 blood vessel supporting rings 1 may be referred to as a first supporting ring and a second supporting ring, respectively, and 1 magnet may be disposed on one of the first supporting ring and the second supporting ring, and 1 magnet with different magnetism may be disposed on the other of the first supporting ring and the second supporting ring, or an object made of iron or the like, so as to realize the magnetic attraction of the 2 blood vessel supporting rings 1.

Through setting up 2 at least blood vessel support rings 1 to the looks magnetism and inhale, in specific application, mainly play 2 effects:

the first and fast connection functions are that when the blood vessels are anastomosed, the risk of untimely blood supply of a patient sometimes occurs, and particularly, when large blood vessels in the deep part of a body cavity need to be anastomosed in a major operation, the organ ischemia time is prolonged due to long-time blood flow blockage, and the body injury of the patient is aggravated; therefore, when the blood vessel support ring 1 assembly of the embodiment of the present application is used, taking 2 blood vessel support rings 1 as an example, 2 blood vessel support rings 1 may be placed into the blood vessel of 2 disconnected ends of the blood vessel in advance, and then the separation portion 11 of the blood vessel support ring 1 is inflated/filled with liquid, so that the disconnected ends of the blood vessel are swollen/supported, for example, to form a bell mouth, and then the disconnected ends of the 2 blood vessels are close to each other, so that the blood can be magnetically attracted together, and then the blood can be passed through, that is, the blood can be passed through without suturing first.

Secondly, the effect of being convenient for suture, when the blood vessel is anastomosed, that is to say, in the operation process, for some crowds (for example, doctors/students who just work, etc.), nervous mood often appears, through setting up 2 blood vessel support rings 1 to magnetism and inhale mutually to make two disconnected ends magnetism inhale in advance together, like this, when sewing up, because the hookup location department of two disconnected ends is bloated, and two disconnected ends link together, sew up on this basis and make the degree of difficulty of sewing up reduce a lot, that is to say, after all disconnected ends have been connected, go to sew up promptly to sew up and have had more, direct threading just can, thereby play the effect of being convenient for suture.

It will be appreciated that the number of vessel support rings 1 is only preferred, and in other examples the number of vessel support rings 1 may also be 3, 4 or even more.

It should be noted that, because the number of the blood vessel support rings 1 is at least 2, in a specific application, the sizes (such as the inner diameters of the tubes) of the broken ends of the blood vessels can be unified by respectively adjusting the volumes of the separating parts 11 of the blood vessel support rings 1, so that the suturing operation of people is facilitated, and the situation that blood leaks after the suturing operation due to the fact that the inner diameter of one side of the tube is large and the inner diameter of the other side of the tube is small is avoided.

With continued reference to fig. 12-15, the everting structure 2 may include a pull pin 21 and a pull wire 22, the pull pin 21 having a barb 211; the traction wire 22 is connected with the traction needle 21; the number of everting structures 2 is at least 2, e.g. oppositely arranged.

When the method is specifically applied, for example, the traction needle 21 sequentially passes through B, C from a in the figure and then is led out from D, when the traction wire 22 is pulled to depart from one end part of the traction needle 21, such as a thread end above a in fig. 11, 2 blood vessel support rings 1 positioned in the end parts of 2 blood vessel broken ends can be exposed out of the blood vessel, thus, when suturing, because the 2 blood vessel broken ends are protruded on the surface of the outer side wall of the blood vessel, when suturing, only the suture needs to be performed back and forth in the horizontal direction, and the like, the suture is not needed to be performed in the oblique threading (such as from inside to outside/from outside to inside) in the suturing process in the prior art, so that the difficulty of suturing by people is greatly reduced, and the suture is convenient for people; in addition, since the 2 blood vessel supporting rings 1 are exposed outside the blood vessel, there is no possibility that the blood vessel supporting rings 1 remain in the blood vessel, and in addition, the blood vessel supporting rings 1 can be directly taken down (e.g., cut off) after suturing without considering the material of the blood vessel supporting rings 1 (e.g., without using the existing biodegradable medical material), thereby not only having a simple structure but also having a low cost.

Wherein the number of the everting structures 2 is only preferred, in other examples other numbers are possible, such as 3, 4, 5, etc.

Wherein, it can be understood that, owing to be equipped with barb 211 on the traction needle 21, consequently, when pulling the one end tip that pull wire 22 deviates from traction needle 21, barb 211 is equivalent to the knot of rope, plays the effect that need not to tie a knot promptly, that is to say, when pulling the one end tip that pull wire 22 deviates from traction needle 21, owing to be equipped with barb 211 on the traction needle 21, consequently the other end of cable can offset with the blood vessel outer wall, can not enter into to the blood vessel from the blood vessel outside, barb 211's principle is equivalent to barb 211 on the fishing tackle fishhook.

The specific structure of the traction needle 21 can be seen in fig. 5-8, wherein the shape of the traction needle 21 is not limited herein, and it may be a straight line as a whole, and of course, it may also be an arc structure, such as a semicircle.

It will be understood that the everting structure 2 comprising the traction needle 21 and the traction wire 22 may not be used, and for example, the two ends of the severed vessel end may be directly applied by other tools, so that the 2 vessel supporting rings 1 may also be everted to be exposed outside the vessel.

In other examples, the everting structure 2 may be any suitable structure, except for the traction needle 21 and the traction wire 22, as long as the blood vessel support ring 1 is exposed to the outside of the blood vessel.

It is understood that the blood vessel support ring of the embodiments of the present application can be used not only for blood vessels, but also for lymphatic vessels and other suitable vessels in other examples.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.