Artificial blood vessel, anastomosis device and anastomosis method

Abstract

The present invention discloses an artificial blood vessel, comprising an artificial blood vessel base and a skirt, wherein the skirt is used to connect the artificial blood vessel base to an autologous blood vessel. The present invention also provides an anastomosis device comprising the above-mentioned artificial blood vessel, further comprising a support assembly and a coating. In the initial state, the coating is sheathed on the outside of the support assembly, compressing the elastic member, and the support assembly is in a "folded" state. After the coating is completely separated from the support assembly, under the action of the elastic member restoring its deformation, the free end of the umbrella ridge rotates in a direction away from the umbrella frame, and drives the everting umbrella to move. At this time, the support assembly is in an "open" state. As the everting umbrella is opened, the everting umbrella pushes the skirt to open, and the end of the autologous blood vessel is everted. The present invention also provides an anastomosis method, utilizing the above-mentioned artificial blood vessel to connect the skirt to the everted portion of the autologous blood vessel. The present invention utilizes the skirt to achieve anastomosis between the artificial blood vessel and the autologous blood vessel, thereby reducing the difficulty of aortic surgery.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an artificial blood vessel, an anastomosis device and an anastomosis method. Background Art

[0002] In the field of aortic surgery, the definitive cure for aortic disease remains surgical reconstruction of the aorta and its branches. The mainstream vascular reconstruction method currently involves replacing diseased vessels with artificial blood vessels and anastomosing them with the retained native vessels using needle and thread suturing techniques.

[0003] Due to the large diameter of the aorta, the end-to-end anastomosis between the artificial blood vessel and the autologous blood vessel often takes a long time to connect the ends of the artificial blood vessel with the end of the autologous blood vessel. In addition, due to the differences in suturing experience and skills of the operating physicians, some aortic anastomoses may leak blood due to uneven suture density at the anastomosis, increasing the surgical risk for the patient. To further reduce anastomosis time and avoid anastomotic bleeding, the only way currently is for the operating physician to continuously train and improve anastomosis and suturing techniques. This method has a long learning cycle, different physicians have different learning abilities, and non-mechanized operations cannot achieve consistent anastomosis results.

[0004] Therefore, how to change the current situation in which the anastomosis of artificial blood vessels with autologous blood vessels in aortic surgery is time-consuming and labor-intensive, and difficult for medical workers to operate, has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide an artificial blood vessel, an anastomosis device and an anastomosis method to solve the problems existing in the above-mentioned prior art, reduce the difficulty of anastomosis between artificial blood vessels and autologous blood vessels, and reduce the risks of aortic surgery.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides an artificial blood vessel, comprising an artificial blood vessel base and a skirt, wherein the artificial blood vessel base is connected to the skirt, the artificial blood vessel base can be connected to an autologous blood vessel, the skirt is an annular structure, the outer diameter of the skirt is larger than the inner diameter of the autologous blood vessel, the skirt is mounted on the outside of the artificial blood vessel base, the skirt can be connected to the autologous blood vessel, and the skirt is made of a flexible material.

[0007] The present invention also provides an artificial blood vessel anastomosis device, comprising the above-mentioned artificial blood vessel, and further comprising:

[0008] A support assembly, the support assembly comprising an outward-turning umbrella, an umbrella frame, and an umbrella spine, the umbrella frame being an annular structure and being sleeved onto the exterior of the artificial blood vessel matrix, one end of the umbrella spine being hingedly connected to the umbrella frame with an elastic member disposed therebetween, the number of the umbrella spines being multiple, the outward-turning umbrella being connected to the multiple umbrella spines to form an umbrella-shaped structure having an opening, the outward-turning umbrella being located on a side of the umbrella spine close to the skirt;

[0009] The covering is a hollow cylindrical structure, and the covering can be slidably mounted on the outside of the support component. When the covering is mounted on the outside of the support component, the free end of the umbrella ridge is arranged close to the artificial blood vessel matrix. When the covering is detached from the support component, the outward-turned umbrella can be against the skirt.

[0010] Preferably, the umbrella frame is a split structure, comprising a first half ring and a second half ring, one end of the first half ring being hingedly connected to one end of the second half ring, and the other end of the first half ring being snap-connected to the other end of the second half ring.

[0011] Preferably, the support assembly further comprises a connecting wire, one end of which is connected to the first half ring or the second half ring, and the other end of which can be connected to a blood vessel delivery element.

[0012] Preferably, the connecting wire is made of metal material, and is arranged parallel to the axis of the artificial blood vessel matrix. There are two connecting wires, and the two connecting wires are respectively arranged at both ends of the first semi-ring or the second semi-ring.

[0013] Preferably, the covering film is connected with a pulling strip, and the pulling strip extends in a direction away from the skirt.

[0014] Preferably, a plurality of the umbrella ridges are uniformly distributed circumferentially around the axis of the umbrella frame, the elastic member is a twisted spring, and the elastic member corresponds to the umbrella ridges one by one.

[0015] Preferably, the blood vessel transport element can extend into the artificial blood vessel matrix, and the blood vessel transport element can drive the artificial blood vessel matrix, the blood vessel stent and the guide head to move.

[0016] Preferably, the artificial blood vessel anastomosis device of the present invention further comprises an anastomosis device, which comprises a stapler and a stapler magazine, wherein the stapler magazine is movably connected to the stapler magazine and contains suture staples, and the artificial blood vessel matrix can be anastomosed with the autologous blood vessel using the suture staples.

[0017] The present invention also provides an artificial blood vessel anastomosis method, which utilizes the above-mentioned artificial blood vessel, extends the artificial blood vessel into the autologous blood vessel, makes the end of the autologous blood vessel turn outward, connects the skirt with the turned-out part of the autologous blood vessel, and realizes the anastomosis of the artificial blood vessel and the autologous blood vessel.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The artificial blood vessel of the present invention comprises an artificial blood vessel base and a skirt. The skirt is used to connect the artificial blood vessel base with the autologous blood vessel, effectively improving the anastomosis degree between the artificial blood vessel and the autologous blood vessel, avoiding the problem of anastomotic bleeding, and reducing the difficulty of aortic surgery and anastomosis operation.

[0020] The present invention also provides an anastomosis device comprising the above-mentioned artificial blood vessel. In an initial state, the coating is sleeved on the outside of the support assembly, compressing the elastic member, and the support assembly is in a "folded" state. During operation, the artificial blood vessel is docked with the autologous blood vessel. The skirt is made of a flexible material. After being "folded", the skirt extends into the autologous blood vessel along with the artificial blood vessel base. The coating is then slid to move the coating away from the autologous blood vessel. After the coating is completely separated from the support assembly, under the action of the elastic member recovering its deformation, the free end of the umbrella ridge rotates away from the umbrella frame and drives the everting umbrella to move. At this time, the support assembly is in an "opened" state. As the everting umbrella expands, the everting umbrella pushes the skirt to expand and everts the end of the autologous blood vessel to facilitate the connection and anastomosis of the skirt and the autologous blood vessel. After the anastomosis is completed, the support assembly is withdrawn. The artificial blood vessel anastomosis device of the present invention utilizes the support assembly and the coating to facilitate the end-to-end connection and anastomosis of the artificial blood vessel and the autologous blood vessel, reduce the difficulty of the anastomosis operation, and reduce the risk of aortic surgery.

[0021] At the same time, the present invention also provides an anastomosis method, which utilizes the above-mentioned artificial blood vessel to extend the artificial blood vessel into the autologous blood vessel, so that the end of the autologous blood vessel is turned outward, and the skirt is connected to the turned-out part of the autologous blood vessel. The present invention utilizes the skirt to achieve anastomosis between the artificial blood vessel and the autologous blood vessel, effectively improving the anastomosis degree between the artificial blood vessel and the autologous blood vessel, and reducing the difficulty of aortic surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the structure of the artificial blood vessel anastomosis device of the present invention;

[0024] Figure 2 This is a schematic structural diagram of the artificial blood vessel anastomosis device of the present invention after the support assembly is expanded;

[0025] Figure 3 This is a schematic structural diagram of the artificial blood vessel anastomosis device of the present invention after the support assembly is withdrawn;

[0026] Figure 4 It is a side view schematic diagram of the artificial blood vessel anastomosis device of the present invention after the support assembly is expanded;

[0027] Figure 5 It is a schematic right side view of the artificial blood vessel anastomosis device of the present invention;

[0028] Figure 6 A schematic structural diagram of the anastomosis device of the artificial blood vessel anastomosis device of the present invention;

[0029] Figure 7 This is a schematic diagram of the artificial blood vessel anastomosis device of the present invention extending into an autologous blood vessel during operation;

[0030] Figure 8 This is a schematic diagram of the artificial blood vessel anastomosis device of the present invention causing the autologous blood vessel to evert when in operation;

[0031] Figure 9 This is a schematic diagram of the completion of anastomosis between an artificial blood vessel and an autologous blood vessel when the artificial blood vessel anastomosis device of the present invention is in operation;

[0032] Figure 10 Schematic diagram of the structure of the umbrella frame of the artificial blood vessel anastomosis device of the present invention.

[0033] Among them, 1 is the artificial blood vessel matrix, 2 is the skirt, 3 is the covering, 4 is the everted umbrella, 5 is the umbrella frame, 501 is the first half ring, 502 is the second half ring, 6 is the umbrella ridge, 7 is the elastic part, 8 is the branch blood vessel, 9 is the connecting line, 10 is the pulling strip, 11 is the blood vessel delivery element, 12 is the connecting rod, 13 is the blood vessel stent, 14 is the guide head, 15 is the pull ring, 16 is the nail seat, 17 is the nail magazine, 18 is the suture nail, and 19 is the autologous blood vessel. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The purpose of the present invention is to provide an artificial blood vessel, an anastomosis device and an anastomosis method to solve the problems existing in the above-mentioned prior art, reduce the difficulty of anastomosis between artificial blood vessels and autologous blood vessels, and reduce the risks of aortic surgery.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Please refer to Figures 1-10 ,in, Figure 1 is a schematic structural diagram of the artificial blood vessel anastomosis device of the present invention, Figure 2 This is a schematic diagram of the structure of the artificial blood vessel anastomosis device of the present invention after the support component is expanded. Figure 3 FIG1 is a schematic structural diagram of the artificial vascular anastomosis device of the present invention after the support component is withdrawn. Figure 4 This is a side view of the support assembly of the artificial blood vessel anastomosis device of the present invention after being expanded. Figure 5 is a right side schematic view of the artificial blood vessel anastomosis device of the present invention, Figure 6 Schematic diagram of the structure of the anastomosis device of the artificial blood vessel anastomosis device of the present invention, Figure 7 This is a schematic diagram of the artificial blood vessel anastomosis device of the present invention extending into the autologous blood vessel during operation. Figure 8 This is a schematic diagram of the artificial blood vessel anastomosis device of the present invention causing the autologous blood vessel to evert when in operation. Figure 9 This is a schematic diagram of the anastomosis between an artificial blood vessel and an autologous blood vessel when the artificial blood vessel anastomosis device of the present invention is working. Figure 10 Schematic diagram of the structure of the umbrella frame of the artificial blood vessel anastomosis device of the present invention.

[0038] The present invention provides an artificial blood vessel, comprising an artificial blood vessel base 1 and a skirt 2. The artificial blood vessel base 1 is connected to the skirt 2, and the artificial blood vessel base 1 can be connected to an autologous blood vessel 19. The skirt 2 is an annular structure, and the outer diameter of the skirt 2 is larger than the inner diameter of the autologous blood vessel 19. The skirt 2 is mounted on the outside of the artificial blood vessel base 1, and the skirt 2 can be connected to the autologous blood vessel 19. The skirt 2 is made of a flexible material.

[0039] The artificial blood vessel of the present invention includes an artificial blood vessel base 1 and a skirt 2. The skirt 2 is used to connect the artificial blood vessel base 1 with the autologous blood vessel 19, which effectively improves the anastomosis degree between the artificial blood vessel and the autologous blood vessel 19, avoids the problem of anastomotic bleeding, and reduces the difficulty of aortic surgery and anastomosis operation.

[0040] The present invention also provides an anastomosis device including the above-mentioned artificial blood vessel, which also includes a support assembly and a covering 3, wherein the support assembly includes an outward-turned umbrella 4, an umbrella frame 5 and an umbrella ridge 6, the umbrella frame 5 is an annular structure, the umbrella frame 5 is mounted on the outside of the artificial blood vessel matrix 1, one end of the umbrella ridge 6 is hinged to the umbrella frame 5 and an elastic member 7 is arranged between the two, there are multiple umbrella ridges 6, the outward-turned umbrella 4 is connected to the multiple umbrella ridges 6 to form an umbrella-shaped structure with an opening, the outward-turned umbrella 4 is located on the side of the umbrella ridge 6 close to the skirt 2; the covering 3 is a hollow cylindrical structure, the covering 3 can be slidably mounted on the outside of the support assembly, when the covering 3 is mounted on the outside of the support assembly, the free end of the umbrella ridge 6 is arranged close to the artificial blood vessel matrix 1, and when the covering 3 is detached from the support assembly, the outward-turned umbrella 4 can be against the skirt 2.

[0041] In the initial state of the artificial blood vessel anastomosis device of the present invention, the covering film 3 is sleeved on the outside of the supporting component, the elastic member 7 is compressed, and the supporting component is in a "folded" state. Figure 1 As shown, during operation, the artificial blood vessel is docked with the autologous blood vessel 19, and the skirt 2 is made of a flexible material. After being "folded", the skirt 2 extends into the autologous blood vessel 19 along with the artificial blood vessel base 1, and then the covering 3 is slid to move the covering 3 in the direction away from the autologous blood vessel 19. After the covering 3 is completely separated from the support assembly, under the action of the elastic member 7 restoring the deformation, the free end of the umbrella ridge 6 rotates in the direction away from the umbrella frame 5, and drives the everting umbrella 4 to move. At this time, the support assembly is in the "open" state. When the everting umbrella 4 is opened, the everting umbrella 4 pushes the skirt 2 to open and makes the end of the autologous blood vessel 19 everted. Figure 8 As shown, the skirt 2 facilitates the connection and anastomosis between the artificial blood vessel 19 and the native blood vessel 19. After the anastomosis is completed, the support assembly is withdrawn, and the umbrella-shaped structure with an opening formed by the everted umbrella 4 and the umbrella ridge 6 facilitates the withdrawal of the support assembly. The artificial blood vessel anastomosis device of the present invention utilizes the support assembly and the covering 3 to facilitate the end-to-end connection and anastomosis between the artificial blood vessel and the native blood vessel 19, reducing the difficulty of the anastomosis operation and the risks of aortic surgery.

[0042] It needs to be explained here that the vascular stent 13 is connected to the distal contraction section of the artificial blood vessel matrix 1. The transportation of the artificial blood vessel and the installation and release of the vascular stent 13 are common knowledge of those skilled in the art. Similarly, the skirt 2 is made of medical materials that meet the requirements of surgical operations, and the materials of other components are reasonably selected to avoid causing harm to the patient. These are common practices of those skilled in the art and will not be repeated here.

[0043] Since the artificial blood vessel may have branch blood vessels 8, the umbrella frame 5 is set to a split structure. When the support assembly is withdrawn, the umbrella frame 5 is split to avoid damaging the branch blood vessels 8 of the artificial blood vessel. In this specific embodiment, the umbrella frame 5 includes a first half ring 501 and a second half ring 502. Figure 10 One end of the first half ring 501 is hingedly connected to one end of the second half ring 502, and the other end of the first half ring 501 is clamped to the other end of the second half ring 502. When it is necessary to withdraw the umbrella frame 5, the clamped end is opened, and the first half ring 501 and the second half ring 502 rotate relative to each other, so that the umbrella frame 5 can be smoothly removed. The structure of the connection between the outward-turned umbrella 4 and the umbrella spine 6 is a non-closed structure with an opening, which facilitates the smooth withdrawal of the outward-turned umbrella 4 and the umbrella spine 6 along with the umbrella frame 5, effectively protecting the artificial blood vessel branch blood vessels 8.

[0044] Specifically, the support assembly also includes a connecting line 9, see Figure 1 One end of the connecting wire 9 is connected to the first half ring 501 or the second half ring 502, and the other end of the connecting wire 9 can be connected to the blood vessel delivery element 11. The connecting wire 9 can fix the axial position of the umbrella frame 5, avoid axial sliding and dislocation of the support assembly when the covering 3 slides, and improve the working reliability of the support assembly.

[0045] In this specific embodiment, the connecting wire 9 is made of metal material to improve the structural strength of the connecting wire 9. The connecting wire 9 is arranged parallel to the axis of the artificial blood vessel matrix 1. There are two connecting wires 9 to improve the force uniformity of the support component and avoid the rotational dislocation of the support component. The two connecting wires 9 are respectively arranged at the two ends of the first semi-ring 501 or the second semi-ring 502. In other specific embodiments of the present invention, multiple connecting wires 9 can also be set to further improve the stability and flexible adaptability of the support component. Two or more connecting wires 9 are all arranged on the first semi-ring 501 or the second semi-ring 502 to avoid affecting the opening and withdrawal action of the umbrella frame 5.

[0046] More specifically, the covering 3 is connected to a pull strip 10 that extends away from the skirt 2. The pull strip 10 facilitates sliding movement of the covering 3, further enhancing ease of operation. It should be noted that if the artificial blood vessel has branch vessels 8, the covering 3 can be sheared to prevent damage to the branch vessels 8 during sliding removal of the covering 3.

[0047] In addition, the outward-turning umbrella 4 is used to push the skirt 2 to unfold, thereby smoothly turning the end of the autologous blood vessel 19 outward. The provision of the outward-turning umbrella 4 improves the uniformity of force on the skirt 2, which is conducive to ensuring the uniform unfolding of the outer skirt 2, thereby making the subsequent connection and anastomosis between the skirt 2 and the autologous blood vessel 19 uniform and dense, and fully reducing the risk of anastomotic bleeding. Multiple umbrella spines 6 are evenly distributed circumferentially around the axis of the umbrella frame 5, improving the uniformity of force on the outward-turning umbrella 4. The elastic member 7 is a twisted spring, and the elastic member 7 corresponds to the umbrella spine 6 one-to-one. When the covering 3 is mounted on the outside of the support assembly, the elastic member 7 is compressed. When the support assembly is separated from the covering 3, under the force of the elastic member 7 restoring its deformation, the umbrella spine 6 flips over, driving the outward-turning umbrella 4 to open.

[0048] It should also be noted that the vascular transport element 11 can be extended into the artificial blood vessel matrix 1. The vascular transport element 11 uses the connecting rod 12 to extend into the distal contraction section of the artificial blood vessel matrix 1. During the operation, the vascular transport element 11 is used to transport the artificial blood vessel. The guide head 14 can provide guidance for the transportation of the artificial blood vessel matrix 1. The setting of the guide head 14 and the installation and release of the vascular stent 13 are both common means used by technical personnel in this field. The vascular transport element 11 is used to ensure the smooth progress of the surgical operation. In addition, the vascular transport element 11 is connected to a pull ring 15 to further improve the convenience of operation.

[0049] In other specific embodiments of the present invention, the artificial blood vessel anastomosis device further comprises an anastomosis device, which comprises a stapler 16 and a stapler cartridge 17. Figure 6 As shown, the stapler 17 is movably connected to the stapler base 16, and there are suture staples 18 in the stapler 17. There is a gap between the stapler 17 and the stapler base 16 that can accommodate the skirt 2 and the autologous blood vessel 19. The stapler 17 drives the suture staples 18 to move, fixing the artificial blood vessel base 1 and the autologous blood vessel 19. In actual operation, the anastomosis device can be set to a curved surface structure. For example, the anastomosis device is a semi-cylindrical surface. The suture staples 18 are first used to fix one side of the skirt 2 and the autologous blood vessel 19, and then the direction is changed to fix the other side of the skirt 2 and the autologous blood vessel 19; or, the anastomosis device is two symmetrical semi-cylindrical structures. The suture staples 18 can be used to fix the skirt 2 and the autologous blood vessel 9 at the same time, without the need for secondary operation, further improving the anastomosis efficiency. The stapler base 16 and the stapler 17 can be connected in a sliding manner or in a hinged manner to facilitate the operation of the suture staples 18.

[0050] Furthermore, the present invention also provides an artificial blood vessel anastomosis method, which utilizes the above-mentioned artificial blood vessel to extend the artificial blood vessel into the autologous blood vessel 19, and the outer diameter of the skirt 2 is larger than the diameter of the autologous blood vessel 19. During the anastomosis operation, the end of the autologous blood vessel 19 is turned outward, and an inclined surface is formed at the turned-out position. The skirt 2 is connected and fixed to the inclined surface at the turned-out position of the autologous blood vessel 19 to achieve the anastomosis of the artificial blood vessel and the autologous blood vessel 19, effectively improving the anastomosis degree between the artificial blood vessel and the autologous blood vessel 19 and reducing the risk of aortic surgery.

[0051] During aortic surgery, the aorta to be removed needs to be fully exposed, and then cut at the proximal and distal ends respectively to perform the anastomosis of the artificial blood vessel. When the distal end is cut, the remaining aortic opening will be exposed at the distal end of the incision. At this time, take out the artificial blood vessel with the appropriate specifications. The outer diameter of the skirt 2 of the artificial blood vessel is larger than the diameter of the aortic opening. Push the artificial blood vessel into the aortic opening in the antegrade direction until the skirt 2 is retracted proximally and the edge is flush with the edge of the opening, as shown in the figure. Figure 7As shown. Performing a first-level release, that is, sliding the membrane 3 to separate the membrane 3 from the support assembly, because the distal end of the aortic opening is not completely free and cannot move, the aortic opening is turned from the inside to the outside under the eversion of the umbrella 4, forming an inclined surface and adhering to the skirt 2 to form an anastomotic edge, as shown. Figure 8 As shown. The nail seat 16 and the nail magazine 17 are placed at the proximal and distal ends of the anastomotic edge. After the positions are adjusted appropriately, the nails 18 are fired to completely fix the skirt 2 and the everted aortic wall together to complete the aortic anastomosis. Figure 9 As shown. The present invention adopts a method of releasing the coating 3 and fixing the suture staples 18, which can quickly establish the anastomotic edge and perform anastomotic edge anastomosis. Compared with the needle and thread suturing method, the anastomosis time can be greatly shortened, and the density of the suture staples 18 in the staple cartridge 17 can be adjusted according to the actual working conditions, thereby achieving a uniform and dense fixation effect, thereby fully reducing the risk of anastomotic bleeding. After that, a secondary release is performed, that is, the pull ring 15 of the vascular delivery element 11 is withdrawn, so that the vascular stent 13 returns to its natural shape. Under the force of restoring the deformation, the vascular stent 13 drives the distal contraction section of the artificial blood vessel base 1 connected to it to return to a cylindrical shape, so that blood flow can flow from the artificial blood vessel beyond the skirt 2 into the distal aorta, and no abnormal fluid dynamics blood flow is formed near the anastomosis, thereby avoiding related risks. At the same time, the vascular stent 13 provides support for the aorta distal to the anastomosis, avoiding the risk caused by vascular collapse. Finally, the vascular delivery element 11 and its connected components are removed.

[0052] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An artificial vascular anastomosis device, characterized in that: include: An artificial blood vessel, comprising an artificial blood vessel base and a skirt, wherein the artificial blood vessel base is connected to the skirt, the artificial blood vessel base can be connected to an autologous blood vessel, the skirt is an annular structure, the outer diameter of the skirt is larger than the inner diameter of the autologous blood vessel, the skirt is sleeved on the outside of the artificial blood vessel base, the skirt can be connected to the autologous blood vessel, and the skirt is made of a flexible material; A support assembly, the support assembly comprising an outward-turning umbrella, an umbrella frame, and an umbrella spine, the umbrella frame being an annular structure and being sleeved onto the exterior of the artificial blood vessel matrix, one end of the umbrella spine being hingedly connected to the umbrella frame with an elastic member disposed therebetween, the number of the umbrella spines being multiple, the outward-turning umbrella being connected to the multiple umbrella spines to form an umbrella-shaped structure having an opening, the outward-turning umbrella being located on a side of the umbrella spine close to the skirt; The covering is a hollow cylindrical structure, and the covering can be slidably mounted on the outside of the support component. When the covering is mounted on the outside of the support component, the free end of the umbrella ridge is arranged close to the artificial blood vessel matrix. When the covering is detached from the support component, the outward-turned umbrella can be against the skirt.

2. The artificial blood vessel anastomosis device according to claim 1, characterized in that: The umbrella frame is a split structure, comprising a first half ring and a second half ring, one end of the first half ring being hingedly connected to one end of the second half ring, and the other end of the first half ring being snap-connected to the other end of the second half ring.

3. The artificial blood vessel anastomosis device according to claim 2, characterized in that: The support assembly further includes a connecting wire, one end of which is connected to the first half ring or the second half ring, and the other end of which can be connected to a blood vessel delivery element.

4. The artificial blood vessel anastomosis device according to claim 3, characterized in that: The connecting wire is made of metal material and is arranged parallel to the axis of the artificial blood vessel matrix. There are two connecting wires, and the two connecting wires are respectively arranged at the two ends of the first semi-ring or the second semi-ring.

5. The artificial blood vessel anastomosis device according to claim 1, characterized in that: The covering film is connected with a pulling strip, and the pulling strip extends in a direction away from the skirt.

6. The artificial blood vessel anastomosis device according to claim 1, characterized in that: A plurality of umbrella ridges are uniformly distributed circumferentially around the axis of the umbrella frame, and the elastic members are twisted springs, and the elastic members correspond to the umbrella ridges one by one.

7. The artificial blood vessel anastomosis device according to claim 3, characterized in that: The blood vessel transport element can extend into the artificial blood vessel matrix, and the blood vessel transport element can drive the artificial blood vessel matrix, the blood vessel stent and the guide head to move.

8. The artificial blood vessel anastomosis device according to claim 1, characterized in that: It also includes an anastomosis device, which includes a nail base and a nail magazine. The nail magazine is movably connected to the nail base, and the nail magazine contains suture nails. The artificial blood vessel matrix can be anastomosed with the autologous blood vessel using the suture nails.

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