An anchoring device

Abstract

The present invention provides an anchoring device for fixing an artificial heart valve stent, comprising: an anchoring ring and a plurality of connecting rods. Among them, the anchoring ring is annular; the plurality of connecting rods are evenly distributed on the anchoring ring, and one end of the plurality of connecting rods is fixedly connected to the anchoring ring. The other ends of the plurality of connecting rods face the same direction parallel to the midline of the anchoring ring and form an annular fixing part, and the connecting rods are used to fix the artificial heart valve stent. By means of the anchoring device, the present invention changes the installation position of the artificial heart valve stent, so that the artificial heart valve stent can be far away from the mitral valve, thereby reducing the risk of the artificial heart valve stent interfering with the mitral valve.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an anchoring device. Background Art

[0002] With the continuous increase in the average lifespan, the incidence of heart diseases has gradually increased. One of the main types of heart diseases is heart valve disease, and currently, artificial heart valves are mainly used to treat the disease. However, in the prior art, in order to make the artificial heart valve stent more stable after implantation, the artificial heart valve stent needs to be implanted at a deeper position, which results in a relatively high risk of the artificial heart valve stent interfering with the mitral valve.

[0003] It can be seen that there is a problem in the prior art that the risk of the artificial heart valve stent interfering with the mitral valve is relatively high. Summary of the Invention

[0004] Embodiments of the present invention provide an anchoring device to solve the problem in the prior art that there is a relatively high risk of the artificial heart valve interfering with the mitral valve.

[0005] To achieve the above object, embodiments of the present invention provide an anchoring device for fixing an artificial heart valve stent, including: an anchoring ring and a plurality of connecting rods, wherein,

[0006] The anchoring ring is annular;

[0007] The plurality of connecting rods are evenly distributed on the anchoring ring, and one end of the plurality of connecting rods is fixedly connected to the anchoring ring. The other ends of the plurality of connecting rods face the same direction parallel to the midline of the anchoring ring and form an annular fixing portion. The connecting rods are used to fix the artificial heart valve stent.

[0008] As an optional implementation manner, an inner hook is provided at the end of the connecting rod away from the anchoring ring. The inner hook faces the inner side of the anchoring ring, and the inner hook is used to fix the artificial heart valve stent.

[0009] As an optional implementation manner, a magnetic attraction block is provided at the end of the connecting rod away from the anchoring ring, and the artificial heart valve stent is provided with the magnetic attraction block. The connecting rod and the artificial stent are connected through the magnetic attraction block.

[0010] As an optional implementation manner, the anchoring ring is wavy, and one end of the connecting rod is connected to the wave valley of the wave shape close to the connecting rod.

[0011] As an optional implementation manner, the number of wave shapes of the anchoring ring is the same as the number of connecting rods.

[0012] As an alternative embodiment, the materials of the anchoring ring and the connecting rod are nitinol alloy materials.

[0013] One of the above technical solutions has the following advantages or beneficial effects:

[0014] In the embodiment of the present invention, the anchoring device is pre-placed at a position far from the mitral valve, and then the artificial heart valve stent is fixed at the corresponding position and connected to the anchoring device, enhancing the stability of the overall structure, so that the artificial heart valve stent can be far away from the mitral valve, thereby reducing the risk of interference between the artificial heart valve stent and the mitral valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of an anchoring device provided by an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of the planar split structure of an anchoring device provided by an embodiment of the present invention;

[0018] Figure 3 is a schematic structural diagram of an artificial heart valve stent provided by an embodiment of the present invention;

[0019] Figure 4 is a schematic diagram of the delivery of an anchoring device provided by an embodiment of the present invention;

[0020] Figure 5 is a schematic diagram of the release process of an anchoring device provided by an embodiment of the present invention;

[0021] Figure 6 is a schematic diagram of the position of an anchoring device after release provided by an embodiment of the present invention;

[0022] Figure 7 is a schematic diagram of the delivery of an artificial heart valve stent provided by an embodiment of the present invention;

[0023] Figure 8 is a schematic diagram of the release process of an artificial heart valve stent provided by an embodiment of the present invention;

[0024] Figure 9 is a schematic diagram of the position of an artificial heart valve stent after release provided by an embodiment of the present invention;

[0025] Figure 10 It is a schematic diagram of the connection position between an anchoring device and an artificial heart valve stent provided by an embodiment of the present invention. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple.

[0028] As Figure 1 shown, an embodiment of the present invention provides an anchoring device 10 for fixing an artificial heart valve stent 20, including: an anchoring ring 101 and a plurality of connecting rods 102. Among them,

[0029] the anchoring ring 101 is annular;

[0030] the plurality of connecting rods 102 are evenly distributed on the anchoring ring 101, and one end of the plurality of connecting rods 102 is fixedly connected to the anchoring ring 101. The other ends of the plurality of connecting rods 102 face the same direction parallel to the center line of the anchoring ring 101 and form an annular fixing part. The connecting rods 102 are used to fix the artificial heart valve stent 20.

[0031] In this embodiment, the anchoring device 10 is fixed at a position far from the mitral valve, and then the artificial heart valve stent 20 is fixedly connected to the anchoring device 10 so that the artificial heart valve stent 20 can be far from the mitral valve, thereby reducing the risk of interference between the artificial heart valve stent 20 and the mitral valve.

[0032] Among them, after the anchoring ring 101 is released to the target position, it is fixed to the inner wall of the blood vessel; after the artificial heart valve stent 20 is delivered and released, the artificial heart valve stent 20 is connected to the annular fixing part formed by the connecting rods 102 and fixed in the native annulus region. In this way, the artificial heart valve stent 20 is far from the mitral valve, thereby reducing the risk of interference between the artificial heart valve stent 20 and the mitral valve; and the anchoring device 10 can increase the stability of the artificial heart valve stent 20 after installation and prevent the artificial heart valve stent 20 from falling off.

[0033] In addition, the artificial heart valve stent 20 is of a self-expanding or balloon-expandable design. The artificial heart valve stent 20 provided in the embodiment of the present invention is of a self-expanding structure, as Figure 2 shown.

[0034] Among them, the state of the connection between the anchoring device 10 and the artificial heart valve stent 20 is as Figure 3 shown. The anchoring device 10 is connected and fixed to the artificial heart valve stent 20 through a connecting rod 102.

[0035] As an alternative embodiment, an inner hook is provided at one end of the connecting rod 102 away from the anchoring ring 101. The inner hook faces the inner side of the anchoring ring 101, and the inner hook is used to fix the artificial heart valve stent 20.

[0036] In this embodiment, the connection and fixation between the connecting rod 102 and the artificial heart valve stent 20 are achieved through the inner hook. Among them, the artificial heart valve stent 20 is of a mesh structure, and the inner hook is adapted to the mesh structure and can be connected and fixed to the inner hook after the artificial heart valve stent 20 is released.

[0037] Among them, the inner hook is formed by a shape-setting heat treatment method.

[0038] As an alternative embodiment, a magnetic attraction block is provided at one end of the connecting rod 102 away from the anchoring ring 101, and a magnetic attraction block is provided on the artificial heart valve stent 20. The connecting rod 102 and the artificial stent are connected through the magnetic attraction block.

[0039] In this embodiment, the anchoring device 10 is connected and fixed to the artificial heart valve stent 20 through the magnetic attraction block. Among them, the magnetic attraction block is a medical-grade magnetic attraction component. Correspondingly, a magnetic attraction block is also installed on the surface of the artificial heart valve stent 20 and is connected and fixed to the connecting rod 102 by magnetic force after the artificial heart valve stent 20 is released.

[0040] In addition, one end of the connecting rod 102 away from the anchoring ring 101 can be set in the form of an annular bayonet to be fixedly connected to the artificial heart valve stent 20.

[0041] As an alternative embodiment, the anchoring ring 101 is wavy, and one end of the connecting rod 102 is connected to the wave valley of the wave shape close to the connecting rod 102.

[0042] In this embodiment, when the anchoring device 10 is transported, the anchoring device 10 needs to be compressed. At this time, setting the anchoring ring 101 of the anchoring device 10 to be wavy can facilitate compression, and at the same time, the wave shape can make the fixation of the anchoring ring 101 to the blood vessel inner wall more stable.

[0043] According to the different sizes of artificial heart valve stents 20, the anchoring ring 101 is designed to be composed of 3 to 12 waveforms to meet the size requirements. The width and thickness of the anchoring ring 101 are 0.3 to 3 mm to increase the strength of the structure.

[0044] As an optional implementation, the number of waves of the anchor ring 101 is consistent with the number of connecting rods 102 .

[0045] In this embodiment, setting the number of waveforms and the number of connecting rods 102 to be consistent can make the anchoring device 10 evenly stressed and the connection with the artificial heart valve stent 20 more stable.

[0046] As an optional embodiment, the anchoring ring 101 and the connecting rod 102 are made of nickel-titanium alloy.

[0047] In this embodiment, the anchoring ring 101 is made of a nickel-titanium alloy material to enable compression of the anchoring device 10 and expansion and stretching after release.

[0048] During the use of the anchoring device 10, if Figure 5 As shown, the anchoring device 10 is first delivered to the aorta above the native valve. Figure 6 and Figure 7 As shown, the anchoring device 10 is released, and the anchoring ring 101 abuts and fixes against the inner wall of the blood vessel. Figure 8 As shown, the artificial heart valve stent 20 is delivered to the connecting rod 102 position of the anchoring device 10, as shown in FIG. Figure 9 As shown, the compressed artificial heart valve stent 20 is exposed, and the position is confirmed to be normal. Finally, the artificial heart valve stent 20 is released, and the artificial heart valve stent 20 is connected and fixed with the anchoring device 10, and abutted and fixed with the inner wall of the original valve ring area, completing the implantation of the artificial heart valve stent 20. The anchoring device 10 can make the position of the artificial heart valve stent 20 higher than the ventricle position, thereby reducing the risk of interfering with the mitral valve and avoiding compression of the left His bundle.

[0049] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0050] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit of the present invention and the scope protected by the claims, and all of them fall within the protection scope of the present invention.

Claims

1. An anchoring device, characterized in that, the anchoring device is used to fix an artificial heart valve stent, and the anchoring device includes: an anchoring ring and a plurality of connecting rods, wherein, the anchoring ring is wavy; the plurality of connecting rods are evenly distributed on the anchoring ring, and one end of the plurality of connecting rods is fixedly connected to the anchoring ring. The other ends of the plurality of connecting rods face the same direction parallel to the center line of the anchoring ring and form an annular fixing portion. The plurality of connecting rods are used to fix the artificial heart valve stent; an inner hook is provided at one end of the plurality of connecting rods away from the anchoring ring, and the inner hook faces the inner side of the anchoring ring. The inner hook is used to fix the artificial heart valve stent; a magnetic attraction block is provided at one end of the plurality of connecting rods away from the anchoring ring, and the artificial heart valve stent is provided with the magnetic attraction block. The plurality of connecting rods and the artificial heart valve stent are connected through the magnetic attraction block; during the use of the anchoring device, the anchoring device is conveyed to the aortic position above the native valve; the anchoring device is released, and the anchoring ring abuts against and is fixed to the blood vessel inner wall; the artificial heart valve stent is conveyed to the position of the plurality of connecting rods of the anchoring device; the compressed artificial heart valve stent is exposed; the artificial heart valve stent is released, and the artificial heart valve stent is fixedly connected to the anchoring device and abuts against and is fixed to the inner wall of the original annulus region.

2. The anchoring device according to claim 1, characterized in that, one end of the plurality of connecting rods is connected to the trough close to the plurality of connecting rods.

3. The anchoring device according to claim 2, characterized in that, the number of waveforms of the anchoring ring is the same as the number of the plurality of connecting rods.

4. The anchoring device according to claim 1, characterized in that, the materials of the anchoring ring and the plurality of connecting rods are nitinol alloy materials.

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