Prosthetic vessel stabilizing device

Abstract

The application discloses an artificial blood vessel stabilizing device. The artificial blood vessel has a first anastomosis end and a second anastomosis end opposite to each other along an axial direction of the artificial blood vessel. The artificial blood vessel stabilizing device comprises a supporting sleeve, which is through along the axial direction and has a first connecting end and a second connecting end opposite to each other along the axial direction. The supporting sleeve is arranged outside the artificial blood vessel, the first anastomosis end is connected with the first connecting end, and the second anastomosis end is connected with the second connecting end. The artificial blood vessel stabilizing device can provide reliable support for the artificial blood vessel, reduce swing and deformation of the artificial blood vessel, and improve the stability of the artificial blood vessel.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to an artificial blood vessel stabilizing device. BACKGROUND

[0002] Prosthetic valve implantation surgery is a treatment method for restoring heart function by replacing or repairing diseased heart valves.

[0003] For some patients with a small valve ring or a narrow left ventricle, in order to achieve the implantation of a larger size valve, an artificial blood vessel is implanted above the valve ring and connected to the artificial blood vessel in the prosthetic valve implantation surgery to improve the hemodynamic effect.

[0004] However, the artificial blood vessel is a soft tube, which is prone to swing and deformation, and has poor stability, which affects the postoperative effect. SUMMARY

[0005] The present application provides an artificial blood vessel stabilizing device, which can provide reliable support for the artificial blood vessel, reduce the swing and deformation of the artificial blood vessel, and improve its stability.

[0006] The present application provides an artificial blood vessel stabilizing device, wherein the artificial blood vessel has a first anastomosis end and a second anastomosis end opposite to each other along its axial direction, and the artificial blood vessel stabilizing device comprises:

[0007] A support sleeve is provided, which is through along its axial direction, and has a first connecting end and a second connecting end opposite to each other along its axial direction; the support sleeve is sleeved on the outside of the artificial blood vessel, the first anastomosis end is connected to the first connecting end, and the second anastomosis end is connected to the second connecting end.

[0008] The artificial blood vessel stabilizing device as described above, wherein the support sleeve is a mesh sleeve, and a plurality of through holes penetrating in the radial direction of the support sleeve are uniformly distributed on the sleeve wall of the support sleeve.

[0009] The artificial blood vessel stabilizing device as described above, wherein the first connecting end is connected to the first anastomosis end through a first connecting member, the first connecting member is annular, and the radial dimension of the first connecting member can change with the expansion of the artificial blood vessel.

[0010] The second connecting end is connected to the second anastomosis end through a second connecting member, and the second connecting member is an annular structure with a fixed radial dimension.

[0011] The artificial blood vessel stabilizing device as claimed in any one of the preceding claims, wherein the first connecting member comprises a plurality of arc-shaped elements, each of the arc-shaped elements having a first end and a second end along a circumferential direction thereof, the first end having a insertion hole, the second end having an insertion portion, the insertion portion of each of the arc-shaped elements being inserted into the insertion hole of one of the arc-shaped elements, the plurality of the arc-shaped elements being sequentially connected to form a ring structure.

[0012] During the expanding process, the insertion depth of the insertion portion into the insertion hole gradually decreases.

[0013] The artificial blood vessel stabilizing device as claimed in any one of the preceding claims, wherein the first connecting member comprises a plurality of arc-shaped elements and a plurality of corrugated elements, one of the corrugated elements being fixedly connected between each two adjacent arc-shaped elements, the arc-shaped elements and the corrugated elements being alternately arranged to form a ring structure, the corrugated elements having a plurality of corrugated portions along a circumferential direction of the ring structure.

[0014] During the expanding process, the corrugated portions are gradually unfolded.

[0015] The artificial blood vessel stabilizing device as claimed in any one of the preceding claims, wherein an elastic protective sleeve is coated on a surface of the first connecting member.

[0016] The artificial blood vessel stabilizing device as claimed in any one of the preceding claims, further comprising a righting structure, the righting structure being connected to the second connecting end of the support sleeve.

[0017] The righting structure is coaxially arranged with the support sleeve along an axial direction of the support sleeve.

[0018] The righting structure has a radial dimension greater than that of the support sleeve along a radial direction of the support sleeve, and the righting structure is capable of expanding or contracting along the radial direction of the support sleeve.

[0019] The artificial blood vessel stabilizing device as claimed in any one of the preceding claims, wherein the righting structure comprises:

[0020] a connecting ring, detachably connected to the second connecting end;

[0021] a righting member, woven by a plurality of warp threads distributed along a circumferential direction of the support sleeve and a plurality of weft threads distributed along an axial direction of the support sleeve, each of the warp threads having a first end fixedly connected to the connecting ring and a second end fixedly connected to the support sleeve;

[0022] The radial dimension of the righting member can be adjusted by adjusting the distance between the second end of each of the warp threads and the connecting ring.

[0023] The artificial blood vessel stabilizing device as claimed in any one of the preceding claims, wherein the righting member is made of a plastic material.

[0024] The righting member has an expanded state and a contracted state, in the contracted state, each of the warp threads is close to each other and is contracted, the distance between the second end of each of the warp threads and the connecting ring is maximum, and the righting member has a columnar structure;

[0025] In the expanded state, compared with the contracted state, the distance between the second end of each of the warp threads and the connecting ring is reduced, each of the warp threads is plastically deformed and is away from each other, and the diameter of each of the weft threads is plastically deformed and is increased.

[0026] The artificial blood vessel stabilizing device as described above, wherein the warp thread is an arc-shaped elastic member, and the weft thread is a ring-shaped flexible member;

[0027] The righting structure further comprises a flexible limiting ring;

[0028] The righting member has an expanded state and a contracted state, in the contracted state, each of the warp threads is close to each other and is contracted, the distance between the second end of each of the warp threads and the connecting ring is maximum, and the righting member has a columnar structure;

[0029] In the expanded state, the flexible limiting ring is separated from the righting member, each of the warp threads is away from each other and is expanded to form an ellipsoid or a spherical structure.

[0030] The artificial blood vessel stabilizing device provided by the present application sets a support sleeve outside the artificial blood vessel, connects the first anastomosis end of the artificial blood vessel with the first connecting end of the support sleeve, and connects the second anastomosis end of the artificial blood vessel with the second connecting end of the support sleeve, so that the support sleeve can effectively support the artificial blood vessel, reduce the swing and deformation of the artificial blood vessel, and improve the stability of the artificial blood vessel after implantation.

[0031] Further, the artificial blood vessel stabilizing device provided by the present application is used together with the support sleeve through the righting structure, which can further maintain the distance between the support sleeve and the atrial wall, and reduce the situation that the compression of the human blood vessel and the support sleeve on the atrial wall causes the blood reflux to be blocked or even the deformation of the atrial wall. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be briefly introduced, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the premise that the drawings are not creative labor.

[0033] Figure 1 The artificial blood vessel stabilizing device of the present application is an exploded view of the support sleeve and the artificial blood vessel;

[0034] Figure 2Structure diagram of a first connecting member of a support sleeve of a vascular prosthesis stabilizing device according to an embodiment of the present application;

[0035] Figure 3 Structure diagram of another first connecting member of a support sleeve of a vascular prosthesis stabilizing device according to an embodiment of the present application;

[0036] Figure 4 Structure diagram of another vascular prosthesis stabilizing device according to an embodiment of the present application.

[0037] Explanation of reference numerals:

[0038] 1. Vascular prosthesis; 11. First anastomosis end; 12. Second anastomosis end;

[0039] 2. Support sleeve; 21. First connecting end; 22. Second connecting end; 23. First connecting member; 231. Arc-shaped element; 2311. First end; 23111. Insertion hole; 2312. Second end; 23121. Insertion part; 232. Wave-shaped element; 233. Elastic protective sleeve; 24. Second connecting member;

[0040] 3. Righting structure; 31. Connecting ring; 32. Righting element; 321. Warp; 322. Weft. DETAILED DESCRIPTION

[0041] The features and exemplary embodiments of various aspects of the present application will be described in detail below with reference to the drawings. The following description is merely intended to explain the present application, and is not intended to limit the present application. The present application can be implemented without some of the specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.

[0042] Mitral valve replacement "chimney technique" is mainly used to solve the mismatch of graft and the risk of left ventricular rupture caused by small annulus or narrow left ventricle in traditional implantation process. By implanting an artificial valve at a position 4-5 mm above the annulus and connecting a vascular prosthesis (such as a dacron conduit or a flexible conduit), a larger size valve can be implanted, which is especially suitable for children, low-weight patients and complex cases (such as calcified annulus or recurrent regurgitation). The advantages include reducing the risk of left ventricular rupture, reducing the need for secondary surgery, and improving hemodynamic effects.

[0043] Although this technique can solve certain anatomical problems, it has a low popularity rate due to its complex operation and complication risks, and can only be used as a supplement to traditional methods rather than the first choice. There are three reasons for the low popularity rate:

[0044] 1. If the artificial blood vessel is too long, it will be unstable and swing from side to side, which may lead to the risk of valve jamming; while if the artificial blood vessel is too short, it will restrict the opening of the artificial valve.

[0045] 2. The anastomosis between the artificial blood vessel and the valve annulus will occupy the volume of the left atrium. Since it is close to the atrial wall, it may come into contact with and compress the atrial wall, thus obstructing blood return.

[0046] 3. Artificial blood vessels are prone to deformation, which may compress the pulmonary veins and cause pulmonary vein stenosis.

[0047] The present invention mainly solves the above problems: preventing the chimney from swaying, preventing the pipe from being too close to the posterior wall of the left atrium, and preventing pulmonary vein stenosis caused by deformation of the left atrium.

[0048] In view of the problems existing in the above-mentioned related technologies, the present application provides an artificial blood vessel stabilization device that can provide reliable support for the artificial blood vessel 1, reduce the swing and deformation of the artificial blood vessel 1, improve the stability of the artificial blood vessel 1, and ensure the postoperative recovery effect.

[0049] like Figure 1 As shown, this application provides an artificial blood vessel stabilization device, which is used to connect with an artificial blood vessel 1. The artificial blood vessel 1 has a first anastomosis end 11 and a second anastomosis end 12 opposite to each other along its axial direction. The first anastomosis end 11 is used to anastomose with an artificial valve, and the second anastomosis end 12 is used to anastomose with human tissue.

[0050] The artificial blood vessel stabilization device includes a support sleeve 2, which provides support for the artificial blood vessel 1.

[0051] The support sleeve 2 is through-shaped along its axial direction, and the support sleeve 2 has a first connecting end 21 and a second connecting end 22 facing away from each other along its axial direction.

[0052] When setting it up, the axial direction of the support sleeve 2 is the same as that of the artificial blood vessel 1, that is, the two extend in the same direction.

[0053] The support sleeve 2 is fitted onto the outside of the artificial blood vessel 1. The first anastomosis end 11 is connected to the first connecting end 21, and the second anastomosis end 12 is connected to the second connecting end 22. This fixes the first anastomosis end 11 and the second anastomosis end 12 of the artificial blood vessel 1, effectively unfolding and fixing it along the axial direction of the artificial blood vessel 1, reducing the possibility of deformation and shortening of the artificial blood vessel 1. At the same time, the support sleeve 2 provides support to the artificial blood vessel 1 on its outside, effectively preventing deformation and swaying of the artificial blood vessel 1, and improving the stability of the artificial blood vessel 1.

[0054] like Figure 1As shown in the embodiment of this application, the artificial blood vessel stabilization device includes a support sleeve 2 that is a mesh sleeve with a plurality of radially penetrating through holes evenly distributed on its wall. This effectively reduces the weight of the support sleeve 2, achieving lightweight design.

[0055] Optionally, the support sleeve 2 is formed by interlacing multiple linear structures, which has the advantages of being easy to process and easy to form a uniform cylindrical structure.

[0056] Optionally, the support sleeve 2 can be made of polyester, which has good strength and elastic recovery ability, is not easily deformed during use, and can quickly return to its original shape after deformation; in addition, polyester has good chemical stability and a long service life.

[0057] like Figure 1 As shown in the embodiment of this application, the artificial blood vessel stabilization device is provided in which the first connecting end 21 is connected to the first anastomosis end 11 by a first connecting member 23, and the second connecting end 22 is connected to the second anastomosis end 12 by a second connecting member 24.

[0058] The first connecting member 23 is annular, and the radial dimension of the first connecting member 23 can be expanded.

[0059] The second connecting member 24 is a ring structure with fixed dimensions.

[0060] During implantation, the first connecting member 23, which connects the first connecting end 21 and the first anastomosing end 11, is anastomosed with the artificial valve and the patient's autologous tissue. For some younger patients, as the patient ages, their autologous tissue will grow. By setting an expandable first connecting member 23, it can automatically adjust to adapt to the growth of the patient's autologous tissue, avoiding a situation where the size of the first connecting member 23 cannot be adjusted, thus affecting the growth of the autologous tissue.

[0061] like Figure 2 As shown in the embodiment of this application, the artificial blood vessel stabilization device includes a first connecting member 23 comprising a plurality of arc-shaped elements 231, which are spliced ​​together to form a roughly ring-shaped structure.

[0062] Specifically, the arc-shaped element 231 has a first end 2311 and a second end 2312 along its circumference. Along the direction from the first end 2311 to the second end 2312, the arc-shaped element 231 is tapered. A insertion hole 23111 is recessed on the end face of the first end 2311, and an insertion portion 23121 is formed on the second end 2312. The insertion portion 23121 of each arc-shaped element 231 is inserted into the insertion hole 23111 of an adjacent arc-shaped element 231, so that multiple arc-shaped elements 231 are connected sequentially to form a ring structure.

[0063] In the process of expansion of the patient's autologous tissue, the insertion depth of the insertion part 23121 in the corresponding insertion hole 23111 gradually decreases; that is, the insertion part 23121 gradually exits from the corresponding insertion hole 23111, so that the diameter of the annular structure gradually increases to adapt to the growth of the patient's autologous tissue and the like.

[0064] In the implantation process, the first connecting member 23 can be anastomosed to the patient's autologous tissue in a state of minimum diameter, and can expand with the growth of the patient's autologous tissue.

[0065] As shown in Figure 3 The artificial blood vessel stabilizing device provided by the embodiments of the present application, wherein the first connecting member 23 comprises a plurality of arc-shaped elements 231 and a plurality of corrugated elements 232, one corrugated element 232 is fixedly connected between every two adjacent arc-shaped elements 231, the arc-shaped elements 231 and the corrugated elements 232 are alternately arranged and connected to form an annular structure, and the corrugated elements 232 have a plurality of fold parts along the circumference of the annular structure;

[0066] In the process of expansion of the patient's autologous tissue, the fold parts gradually unfold, and the diameter of the annular structure gradually increases to adapt to the growth of the patient's autologous tissue and the like.

[0067] In the implantation process, the first connecting member 23 can be anastomosed to the patient's autologous tissue in a state of minimum diameter, and can expand with the growth of the patient's autologous tissue.

[0068] In some embodiments, the second connecting member 24 can also adopt the same structure as the first connecting member 23 to adapt to the growth of the patient's autologous tissue.

[0069] The artificial blood vessel stabilizing device provided by the embodiments of the present application, wherein the surface of the first connecting member 23 is coated with an elastic protective sleeve 233. By arranging the elastic protective sleeve 233, the smoothness of the surface of the first connecting member 23 can be improved, the situation that the first connecting member 23 is jammed due to interference with the patient's autologous tissue during expansion can be reduced, and at the same time, the shape and structure of the first connecting member 23 can be maintained to prevent the adjacent two arc-shaped elements 231 from separating or the corrugated elements 232 from deforming and twisting.

[0070] As shown in Figure 4 The artificial blood vessel stabilizing device provided by the embodiments of the present application, wherein the artificial blood vessel stabilizing device further comprises a righting structure 3, and the righting structure 3 is connected to the second connecting end 22 of the support sleeve 2;

[0071] The righting structure 3 and the support sleeve 2 are coaxially arranged along the axial direction of the support sleeve 2;

[0072] The radial dimension of the righting structure 3 is greater than the radial dimension of the support sleeve 2 in the radial direction of the support sleeve 2, and the righting structure 3 can expand or contract in the radial direction of the support sleeve 2.

[0073] During implantation into the patient's body, the righting structure 3 is arranged inside the left atrium of the patient and contacts the atrial wall to achieve positioning. Through the positioned righting structure 3, the support sleeve 2 connected to the righting structure 3 is supported and righted, and the distance between the support sleeve 2 and the atrial wall is maintained, which is equivalent to forming an annulus between the support sleeve 2 and the atrial wall to prevent the support sleeve 2 from pressing the atrial wall due to deflection and ensure smooth blood return.

[0074] As shown in Figure 4 The artificial blood vessel stabilizing device provided by the embodiment of the present application, wherein the righting structure 3 comprises a connecting ring 31 and a righting member 32.

[0075] The connecting ring 31 is detachably connected with the second connecting end 22; optionally, the connecting ring 31 is detachably screwed with the second connecting member 24 through threads.

[0076] The righting member 32 is woven by a plurality of warp threads 321 arranged at intervals in the circumferential direction of the support sleeve 2 and a plurality of weft threads 322 arranged at intervals in the axial direction of the support sleeve 2, each of the warp threads 321 is substantially arc-shaped, and each of the weft threads 322 is annular;

[0077] The first end 2311 of each of the warp threads 321 is fixedly connected with the connecting ring 31, and the second end 2312 of each of the warp threads 321 is fixedly connected together.

[0078] The radial dimension of the righting member 32 can be adjusted by adjusting the distance between the second end 2312 of each of the warp threads 321 and the connecting ring 31, so that the righting member 32 is adapted to the size of the left atrium of the patient.

[0079] Optionally, the artificial blood vessel stabilizing device provided by the embodiment of the present application, wherein the righting member 32 is made of a plastic material.

[0080] Specifically, the righting member 32 has an expanded state and a contracted state. In the contracted state, each of the warp threads 321 is close to and contracted with each other, the distance between the second end 2312 of each of the warp threads 321 and the connecting ring 31 is maximum, and the righting member 32 is in a columnar structure. At this time, the radial dimension structure is relatively small, which facilitates implantation of the righting structure 3 into the patient's body.

[0081] In the expanded state, compared with the contracted state, the distance between the second end 2312 of each of the warp threads 321 and the connecting ring 31 is reduced, each of the warp threads 321 is plastically deformed and away from each other, and each of the weft threads 322 is plastically deformed and the diameter is increased, so that the righting body is substantially spherical or ellipsoidal as a whole, so as to adapt to the shape of the left atrium.

[0082] Optionally, the artificial blood vessel stabilizing device provided by the embodiments of the present application, wherein the warp 321 is an arc-shaped elastic member, and the weft 322 is a ring-shaped flexible member.

[0083] The righting member 32 has an expanded state and a contracted state, and the righting structure 3 further comprises a flexible limiting ring.

[0084] Specifically, in the contracted state, each warp 321 is elastically deformed and shrinks towards each other, so that the righting member 32 assumes a columnar structure, and the flexible limiting ring is sleeved outside each warp 321 to position each warp 321, so that the righting member 32 is kept in the columnar structure, thereby facilitating implantation into the patient's body.

[0085] In the expanded state, the flexible limiting ring is separated from the righting member 32, and each warp 321 is no longer constrained by the flexible limiting ring and can expand away from each other to form an ellipsoidal or spherical structure to adapt to the shape of the left atrium.

[0086] Optionally, the flexible limiting ring can be separated from the righting member 32 by shearing or dissolving in blood to achieve expansion of the righting body.

[0087] The artificial blood vessel stabilizing device provided by the present application sets the support sleeve 2 outside the artificial blood vessel 1, and connects the first anastomosis end 11 of the artificial blood vessel 1 with the first connecting end 21 of the support sleeve 2, and connects the second anastomosis end 12 of the artificial blood vessel 1 with the second connecting end 22 of the support sleeve 2, so as to effectively provide support for the artificial blood vessel 1 through the support sleeve 2, reduce the swinging and deformation of the artificial blood vessel 1, and improve the stability of the artificial blood vessel 1 after implantation.

[0088] Further, the artificial blood vessel stabilizing device provided by the present application uses the righting structure 3 in cooperation with the support sleeve 2, which can further keep the distance between the support sleeve 2 and the atrial wall, and reduce the situation that the human blood vessel and the support sleeve 2 press the atrial wall to cause blood reflux obstruction or even atrial wall deformation.

[0089] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the stated elements.

[0090] The above is only a specific implementation of the present application, and those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here. It should be understood that the protection scope of the present application is not limited to this, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed in the present application, and these modifications or replacements should be covered within the protection scope of the present application.

Claims

1. A vascular graft stabilization device, comprising: The application relates to a prosthesis stabilizing device for connecting with a prosthesis (1) which has opposite first and second anastomosis ends (11, 12) along an axial direction, the first anastomosis end (11) being used for anastomosis with a prosthesis valve, the prosthesis stabilizing device comprising: a supporting sleeve (2) which is through along an axial direction and has opposite first and second connecting ends (21, 22) along the axial direction, the supporting sleeve (2) being sleeved on the outside of the prosthesis (1), the first anastomosis end (11) being connected with the first connecting end (21), and the second anastomosis end (12) being connected with the second connecting end (22); the first connecting end (21) is connected with the first anastomosis end (11) through a first connecting member (23), the first connecting member (23) is annular, and the radial dimension of the first connecting member (23) can expand along with the expansion of the prosthesis (1); the first connecting member (23) comprises a plurality of arc-shaped elements (231), the arc-shaped elements (231) have first and second ends (2311, 2312) along a circumferential direction, the first end (2311) has a plug hole (23111), and the second end (2312) is formed with a plug part (23121), the plug part (23121) of each arc-shaped element (231) is inserted into the plug hole (23111) of one arc-shaped element (231), and a plurality of the arc-shaped elements (231) are sequentially connected to form an annular structure; in the expansion process, the insertion depth of the plug part (23121) in the corresponding plug hole (23111) gradually decreases; alternatively, the first connecting member (23) comprises a plurality of arc-shaped elements (231) and a plurality of corrugated elements (232), one corrugated element (232) is fixedly connected between every two adjacent arc-shaped elements (231), the arc-shaped elements (231) and the corrugated elements (232) are alternately arranged and connected to form an annular structure, and the corrugated elements (232) have a plurality of wrinkle parts along the circumferential direction of the annular structure; in the expansion process, the wrinkle parts are gradually unfolded.

2. The artificial vessel stabilization device of claim 1, wherein, the supporting sleeve (2) is a mesh sleeve, and a plurality of through holes penetrating along a radial direction are uniformly distributed on the sleeve wall of the supporting sleeve (2).

3. The prosthesis stabilizing device according to claim 1, wherein the second connecting end (22) is connected with the second anastomosis end (12) through a second connecting member (24), and the second connecting member (24) is an annular structure with a fixed radial dimension.

4. The artificial vessel stabilization device of claim 1, wherein, an elastic protective sleeve (233) is coated on the surface of the first connecting member (23).

5. The artificial vessel stabilization device of claim 1, wherein, the prosthesis stabilizing device further comprises a righting structure (3) connected to the second connecting end (22) of the supporting sleeve (2); the righting structure (3) is coaxially arranged with the supporting sleeve (2) along the axial direction of the supporting sleeve (2). The radial dimension of the centralizing structure (3) is greater than the radial dimension of the support sleeve (2) along the radial direction of the support sleeve (2), and the centralizing structure (3) can expand or contract along the radial direction of the support sleeve (2).

6. The artificial vessel stabilization device of claim 5, wherein, The centralizing structure (3) comprises: a connecting ring (31) detachably connected with the second connecting end (22); a centralizing member (32) formed by weaving a plurality of warp threads (321) distributed along the circumferential direction of the support sleeve (2) and a plurality of weft threads (322) distributed along the axial direction of the support sleeve (2), the first end (2311) of each warp thread (321) being fixedly connected with the connecting ring (31), and the second end (2312) of each warp thread (321) being fixedly connected with the connecting ring (31); The radial dimension of the centralizing member (32) can be adjusted by adjusting the distance between the second end (2312) of each warp thread (321) and the connecting ring (31).

7. The artificial vessel stabilization device of claim 6, wherein, The centralizing member (32) is made of plastic material; The centralizing member (32) has an expanded state and a contracted state, in the contracted state, each warp thread (321) is contracted by being close to each other, the distance between the second end (2312) of each warp thread (321) and the connecting ring (31) is maximum, and the centralizing member (32) has a columnar structure; In the expanded state, compared with the contracted state, the distance between the second end (2312) of each warp thread (321) and the connecting ring (31) is reduced, each warp thread (321) is plastically deformed and away from each other, and each weft thread (322) is plastically deformed and the diameter is increased.

8. The artificial vessel stabilization device of claim 6, wherein, The warp thread (321) is an arc-shaped elastic member, and the weft thread (322) is an annular flexible member; The centralizing structure (3) further comprises a flexible limiting ring; The centralizing member (32) has an expanded state and a contracted state, in the contracted state, each warp thread (321) is elastically deformed and close to each other, so that the centralizing member (32) has a columnar structure, and the flexible limiting ring is sleeved on the outside of each warp thread (321); In the expanded state, the flexible limiting ring is separated from the centralizing member (32), and each warp thread (321) is expanded away from each other to form an ellipsoidal or spherical structure.

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