CN213217907U

CN213217907U - Integrated stent blood vessel

Info

Publication number: CN213217907U
Application number: CN202021780623.2U
Authority: CN
Inventors: 吴智勇; 王志维; 任伟; 胡锐
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-05-18
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses an integration support blood vessel, include artificial blood vessel, tectorial membrane support and fill the branch, artificial blood vessel with the tectorial membrane support links to each other its characterized in that: also comprises a hoop, a sheet-shaped flexible object and a sewing edge; the clamp is arranged at the joint of the artificial blood vessel and the covered stent; the sheet-shaped flexible object is of an open structure, and one side of the sheet-shaped flexible object is annularly connected to the artificial blood vessel; the suture edge is annularly arranged between the clamp and the artificial blood vessel. The utility model discloses owing to only need simply firmly will sew up reason and autologous blood vessel incision and sew up, need not to guarantee sealed effect through sewing up, consequently simplified the operation greatly, shortened the operation time. After the subsequent tectorial membrane stent is expanded, the autologous blood vessel is expanded, so that the autologous blood vessel is tightly attached to the sheet-shaped flexible object, and the autologous blood vessel and the artificial blood vessel are well sealed. The method has the advantages of high efficiency and safety of anastomosis of blood vessels, and prevention of blood leakage at anastomotic orifice.

Description

Integrated stent blood vessel

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to integration support blood vessel.

Background

At present, partial autologous blood vessels inside the human body need to be replaced by artificial blood vessels in the treatment process of some diseases. In the prior art, a suture method is mainly adopted to anastomose an autologous blood vessel and an artificial blood vessel, and the method is safe and effective, but the method has high technical requirements on surgeons, is long in operation time consumption, and can cause blood leakage at an anastomotic opening. If one operation needs to perform anastomosis of a plurality of blood vessels, the time consumption and the risk are greatly increased. For example, when an operation is performed on an acute Aortic Dissection (AD) patient, a surgical thoracotomy operation is generally required clinically, an artificial blood vessel and a stent graft are used to replace a blood vessel with a lesion or a lesion, the operation requires that a proximal end of the artificial blood vessel, a distal end of the artificial blood vessel and 3 branches of the artificial blood vessel are respectively anastomosed with an ascending aorta, a descending aorta, a brachiocephalic trunk, a left common carotid artery and a left subclavian artery of the patient, the operation time required by the method is long, the technical requirement on a doctor is high, blood leakage easily occurs at an anastomotic site, and the doctor is required to perform suture repair. Because the operation needs to be carried out under the condition that the human body is in low-temperature circulation stopping, the overlong anastomosis time of the blood vessels easily causes various operation complications.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problems, the utility model provides a can be with the autologous blood vessel of human body and the quick and firm connection of artificial blood vessel to sealed good integration support blood vessel.

In order to solve the technical problem, the utility model provides an integrated stent blood vessel, which comprises an artificial blood vessel 1, a covered stent 2 and a perfusion branch 10, wherein the artificial blood vessel 1 is connected with the covered stent 2, and also comprises a clamp 3, a sheet-shaped flexible object 4 and a suture edge 5; the clamp 3 is arranged at the joint of the artificial blood vessel 1 and the covered stent 2; the sheet-shaped flexible object 4 is of an open structure, and one side of the sheet-shaped flexible object is annularly connected to the artificial blood vessel 1; the suture edge 5 is annularly arranged between the clamp 3 and the artificial blood vessel 1.

Preferably, the artificial blood vessel 1 comprises a main artificial blood vessel 101 and one or more branch artificial blood vessels 102, the stent graft 2 comprises a main stent graft 201 and one or more branch stent grafts 202, the yoke 3 comprises a main yoke 301 and one or more branch yokes 302, the sheet flexure 4 comprises a main sheet flexure 401 and one or more branch sheet flexures 402, the stitch rim 5 comprises a main stitch rim 501 and one or more branch stitch rims 502, the main artificial blood vessel 101, the main tectorial membrane bracket 201, the main hoop 301, the main sheet-shaped flexible object 401 and the main suture edge 501 are matched in size and shape, the branch artificial blood vessel 102, the branch covered stent 202, the branch hoop 302, the branch sheet-shaped flexible object 402 and the branch suture edge 502 are in one-to-one correspondence and are matched in size and shape.

Preferably, the sheet-shaped flexible object 4 is provided with a connecting mechanism on two sides which need to be overlapped when wrapping part of the artificial blood vessel 1 and the whole covered stent 2.

Further, the connecting mechanisms are respectively a hook 6 and a buckle 7, and are fixed through the hook 6 and the buckle 7.

Further, the connecting mechanism is two or more than two sheets 8 with strong viscosity or magnetism, one side of each sheet 8 with strong viscosity or magnetism is strongly fixed on the superposed surface of the two sides of the sheet-shaped flexible object 4 to be superposed, and the other side of each sheet 8 with strong viscosity or magnetism is covered with a removable protective sheet 9.

Preferably, clamp 3 is annular clamp, the 3 outsides of clamp are equipped with the annular groove, its inboard with the junction of artificial blood vessel 1 and tectorial membrane support 2 closely laminates and can not take place relative movement during practical application.

Preferably, the sheet-shaped flexible object 4 can wrap a part of the artificial blood vessel 1 and the whole of the stent graft 2 at the same time when the adjacent two sides of one side of the artificial blood vessel 1 connected by the sheet-shaped flexible object 4 are overlapped.

Compared with the prior art, the beneficial effects of the utility model are that: as only simple suturing is needed to ensure firm connection when the suturing edge and the autologous vessel incision are sutured in the operation, and the sealing effect is not needed to be ensured through suturing, the operation is greatly simplified, and the operation time is shortened. And subsequently, the covered stent is released, and the covered stent is expanded to prop open the autologous blood vessel, so that the autologous blood vessel is tightly attached to the inside of the sheet-shaped flexible object, the autologous blood vessel and the artificial blood vessel are well sealed, and blood leakage at an anastomotic stoma can not occur. The method has high efficiency and safety of anastomosis of blood vessel, and avoids blood leakage at anastomosis port

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. In the drawings:

FIG. 1 is a cross-sectional view of an embodiment of the present invention without a bifurcated prosthesis;

FIG. 2 is a cross-sectional view of an embodiment of the present invention including a branched artificial blood vessel;

FIG. 3 is a schematic view of the sheet-like flexible object with the hook and loop connecting mechanism of the present invention;

FIG. 4 is a schematic view of the present invention, wherein the connecting mechanism is a flexible sheet with two or more sheets having strong adhesion or magnetism;

fig. 5, 6 and 7 are schematic views of the embodiment shown in fig. 1 at various operation steps.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step should fall within the scope of protection of the present specification. And the drawings described are only schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes. The dimensions and relative dimensions do not correspond to actual reductions in practice of the invention.

For ease of understanding and description, many of the components in some embodiments of the present description are regular in shape, but one skilled in the art will appreciate that the components of embodiments of the present description may be any irregular shape that meets the requirements.

In this context, for the sake of brevity, not all possible combinations of individual features in the various embodiments or examples are described. Therefore, the respective features in the respective embodiments or examples may be arbitrarily combined as long as there is no contradiction between the combinations of the features, and all the possible combinations should be considered as the scope of the present specification.

In addition, the embodiments mentioned below are all applied to the blood vessel replacement of the acute aortic dissection patient, but it should be understood that the present invention can only be applied to the blood vessel replacement of the acute aortic dissection patient.

Example 1: as shown in fig. 1, the integrated stent blood vessel comprises an artificial blood vessel 1, a covered stent 2 and a perfusion branch 10, wherein the artificial blood vessel 1 is connected with the covered stent 2, and is characterized in that: also comprises a hoop 3, a sheet-shaped flexible object 4 and a sewing edge 5; the clamp 3 is arranged at the joint of the artificial blood vessel 1 and the covered stent 2, an annular groove is arranged on the outer side of the clamp 3, the inner side of the annular groove is tightly attached to the joint of the artificial blood vessel 1 and the covered stent 2, and relative movement cannot occur in practical application; the sheet-shaped flexible object 4 is of an open structure, one side of the sheet-shaped flexible object is annularly connected to the artificial blood vessel 1, and when the two adjacent sides of the side are overlapped, the sheet-shaped flexible object 4 can wrap part of the artificial blood vessel 1 and all the covered stents 2 simultaneously; the suture edge 5 is annularly arranged between the clamp 3 and the artificial blood vessel 1, and does not move relatively in practical application; the artificial blood vessel 1, the covered stent 2, the hoop 3, the sheet-shaped flexible object 4 and the suture edge 5 are matched in size and shape.

According to the present embodiment, when the autologous blood vessel is anastomosed with the artificial blood vessel 1, the stent graft 2 is inserted into the autologous blood vessel from the incision of the autologous blood vessel by the delivery system (not shown) until the clamp 3 is completely inserted into the autologous blood vessel. At this time, as shown in fig. 5, the sheet-like flexible object 4 is everted and fitted over the exterior of the artificial blood vessel 1, and the suture is used to connect the suture edge 5 with the autologous vessel incision. The suture only needs to ensure the connection strength without ensuring the sealing state of the suture part, so that only a few sparse stitches are needed, and the suture time is greatly shortened compared with the existing operation time. As shown in fig. 6, the sheet-shaped flexible object 4 is turned over and sleeved outside the autologous blood vessel and the artificial blood vessel 1. As shown in figure 7, the openings of the sheet-shaped flexible objects 4 are connected by sewing at the superposition positions of the openings by using the suture, the autologous blood vessel is wrapped with the artificial blood vessel 1, and the sheet-shaped flexible objects 4 are ensured to be tightly attached to the autologous blood vessel and are not excessively pressed against the autologous blood vessel. And (3) tying the sheet-shaped flexible object 4 and the autologous blood vessel in the groove of the clamp 3 by using a suture or other suitable components outside the sheet-shaped flexible object 4 to ensure that the autologous blood vessel, the artificial blood vessel 1 and the sheet-shaped flexible object 4 are tightly and firmly connected. The covered stent is released by a conveying system (not shown in the figure), and the covered stent expands to open the autologous blood vessel so that the autologous blood vessel is tightly attached to the inside of the sheet-shaped flexible object 4. So that the autologous blood vessel and the artificial blood vessel 1 are well sealed and no blood leakage occurs.

Example 2: as shown in fig. 2, the artificial blood vessel 1 comprises a main artificial blood vessel 101 and one or more branch artificial blood vessels 102, the stent graft 2 comprises a main stent graft 201 and one or more branch stent grafts 202, the clamp 3 comprises a main clamp 301 and one or more branch clamps 302, the sheet-shaped flexible object 4 comprises a main sheet-shaped flexible object 401 and one or more branch sheet-shaped flexible objects 402, the suture edge 5 comprises a main suture edge 501 and one or more branch suture edges 502, the main artificial blood vessel 101, the main stent graft 201, the main clamp 301, the main sheet-shaped flexible object 401 and the main suture edge 501 are matched in size and shape, and the whole formed by the components is called a main stent vessel. The branch artificial blood vessel 102, the branch covered stent 202, the branch hoop 302, the branch sheet-shaped flexible object 402 and the branch suture edge 502 are in one-to-one correspondence and are matched in size and shape, and the whole formed by the components is called a branch stent blood vessel. The main stent vessel is adapted to coincide with a main native vessel (e.g., an aorta), and the branch stent vessel is adapted to coincide with a branch native vessel (e.g., an arterial branch) on the main native vessel. Due to the size difference between the aorta and the artery branches, in order to adapt to autologous vessels with different sizes, the sizes of the main stent vessel and the branch stent vessel and the sizes of the components thereof may also be different and may not be mutually replaceable, so that the components with one-to-one correspondence and the sizes and the shapes being matched are selected to form stent vessels with different sizes in use.

According to the embodiment, the main stent vessel and the branch stent vessel are anastomosed in the same manner as the artificial blood vessel in the embodiment 1. The present embodiment is suitable for replacing an autologous blood vessel having a plurality of branch vessels.

Example 3: as shown in fig. 3, the sheet-shaped flexible object 4 is provided with a buckle (7) and a hook (6) on two sides which need to be overlapped when wrapping part of the artificial blood vessel 1 and the whole covered stent 2. In actual use, the autologous blood vessel is wrapped with the artificial blood vessel 1 by connecting the openings of the sheet-like flexible objects 4 at their overlapping portions using the hook (6) and the buckle (7) without connecting the sheet-like flexible objects using a suture as in example 1.

Example 4: as shown in fig. 4, two or more sheets 8 with strong adhesion or magnetism are arranged on two sides of the sheet-shaped flexible object 4, which need to be overlapped when wrapping part of the artificial blood vessel 1 and all the covered stent 2, one side of each sheet 8 with strong adhesion or magnetism is strongly fixed on the overlapped surface of the two sides of the sheet-shaped flexible object 4, which need to be overlapped, and the other side is covered with a removable protective sheet 9. In practical use, the protective sheet 9 is removed, the openings of the sheet-like flexible objects 4 are connected at the overlapped part thereof through the sheet-like objects 8 with strong adhesive or magnetic property, and the autologous blood vessel is wrapped with the artificial blood vessel 1 without connecting the sheet-like flexible objects through the suture as in the embodiment 1.

The scope of the present invention is not limited to the above-described embodiments, and it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the scope and spirit of the present invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. An integrated stent blood vessel comprises an artificial blood vessel (1), a covered stent (2) and a perfusion branch (10), wherein the artificial blood vessel (1) is connected with the covered stent (2), and is characterized in that: the utility model also comprises a clamp (3), a sheet-shaped flexible object (4) and a sewing edge (5);

the clamp (3) is arranged at the joint of the artificial blood vessel (1) and the covered stent (2);

the sheet-shaped flexible object (4) is of an open structure, and one side of the sheet-shaped flexible object is annularly connected to the artificial blood vessel (1);

the suture edge (5) is annularly arranged between the clamp (3) and the artificial blood vessel (1).

2. The integrated stent vessel of claim 1, wherein: the artificial blood vessel (1) comprises a main artificial blood vessel (101) and one or more branch artificial blood vessels (102), the tectorial membrane stent (2) comprises a main tectorial membrane stent (201) and one or more branch tectorial membrane stents (202), the clamp (3) comprises a main clamp (301) and one or more branch clamps (302), the sheet-shaped flexible object (4) comprises a main sheet-shaped flexible object (401) and one or more branch sheet-shaped flexible objects (402), the suture edge (5) comprises a main suture edge (501) and one or more branch suture edges (502), the main artificial blood vessel (101), the main tectorial membrane stent (201), the main clamp (301), the main sheet-shaped flexible object (401) and the main suture edges (501) are matched in size and shape, and the branch artificial blood vessel (102), the branch tectorial membrane stent (202), The branch clamping hoop (302), the branch sheet-shaped flexible object (402) and the branch stitching edge (502) are in one-to-one correspondence and are matched in size and shape.

3. The integrated stent vessel according to claim 1 or 2, wherein: the two sides of the sheet-shaped flexible object (4) which need to be overlapped when wrapping part of the artificial blood vessel (1) and all of the covered stent (2) are respectively provided with a connecting mechanism.

4. The integrated stent vessel of claim 3, wherein: the connecting mechanisms are respectively a hook (6) and a buckle (7) and are fixed through the hook (6) and the buckle (7).

5. The integrated stent vessel of claim 3, wherein: the connecting mechanism is two or more than two sheet-shaped objects (8) with strong viscosity or magnetism, one side of each sheet-shaped object (8) with the strong viscosity or magnetism is strongly fixed on the superposed surface of two sides of the sheet-shaped flexible object (4) which need to be superposed, and the other side of each sheet-shaped flexible object is covered with a removable protective sheet (9).

6. The integrated stent vessel of claim 1, wherein: the clamp (3) is an annular clamp, an annular groove is formed in the outer side of the clamp (3), the inner side of the annular groove is tightly attached to the joint of the artificial blood vessel (1) and the film-coated support (2), and relative movement cannot occur during practical application.

7. The integrated stent vessel of claim 1, wherein: when the two adjacent sides of one side of the artificial blood vessel (1) connected with the sheet-shaped flexible object (4) are overlapped, the sheet-shaped flexible object (4) can wrap part of the artificial blood vessel (1) and all the covered stents (2) at the same time.