An interventional valve stent and valve

Abstract

The present application relates to an interventional valve stent and a valve, wherein the valve stent comprises a main body, wherein the main body is provided with a plurality of valve openings, and the valve openings have side walls; wherein at least one first support portion is provided in at least part of the valve openings, and the first support portion is connected to the side walls. In the present application, by providing a first support portion in the valve opening of the valve stent, the first support portion can improve the supporting performance of the valve stent, and when the valve is placed in the patient's body, the supporting force between the valve stent and the patient's diseased valve can be improved, thereby reducing the risk of the valve falling off the diseased valve, improving the position accuracy of the valve, thereby improving the working performance of the valve, and ensuring the safety of the patient.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an interventional valve stent and a valve. Background Art

[0002] Traditional heart valve replacement surgery is an open and highly invasive procedure that is traumatic and requires extracorporeal circulation. The surgical risk is high, and adverse reactions such as massive bleeding, infection, and arrhythmia are prone to occur during the operation, causing the patient to even need several months to recover. Although the transapical aortic valve replacement has a small surgical incision, it still causes trauma to the patient's heart and causes long-term pain during the recovery process. In recent years, researchers have been committed to achieving artificial heart valve replacement without opening the chest or placing the patient on extracorporeal circulation, striving to minimize trauma. The biological valve can be placed through the patient's own valve to avoid removing the patient's diseased valve.

[0003] Since the biological valve is supported by the patient's own valve, there is a risk of the valve stent in the biological valve falling off if the supporting force is insufficient or the valve stent is not properly fixed, thus affecting the patient's life safety. Summary of the invention

[0004] The present application provides an interventional valve stent and a valve. The valve stent has good supporting and fixing properties and can prevent the valve from falling off.

[0005] The first aspect of the present invention provides an invasive valve stent, the valve stent comprising a main body, the main body being provided with a plurality of valve openings, the valve openings having side walls;

[0006] Wherein, at least one first supporting portion is arranged in at least a portion of the valve opening, and the first supporting portion is connected to the side wall.

[0007] In a possible design, the first support portion divides the valve opening into at least one quadrilateral structure.

[0008] In a possible design, the first supporting portion at least includes a first section and a second section that are bent relative to each other;

[0009] Along the first direction, one end of the first section is connected to the second section, and the other ends of the first section and the second section are respectively connected to the corresponding side walls.

[0010] In a possible design, the first section, the second section and the side wall have the same length, so that the first section, the second section and the side wall form a rhombus or a square.

[0011] In a possible design, along the second direction, at least two first support portions are disposed in the valve opening, and a preset distance exists between adjacent first support portions.

[0012] In a possible design, at least a portion of the first support portion can be convex toward the outside of the valve orifice, or at least a portion of the first support portion can be concave toward the outside of the valve orifice.

[0013] In a possible design, the valve opening is in a hexagonal shape.

[0014] In one possible design, the material of the valve support includes cobalt-based alloy, stainless steel or nickel titanium.

[0015] A second aspect of the present application provides a valve, the valve comprising:

[0016] A valve stent, wherein the valve stent is the interventional valve stent described above;

[0017] The valve leaflets are mounted on the valve support.

[0018] In one possible design, the valve is a balloon-expandable valve.

[0019] In the present application, by setting a first support portion in the valve orifice of the valve stent, the first support portion can improve the supporting performance of the valve stent. When the valve is implanted in the patient's body, the supporting force of the valve stent and the patient's diseased valve can be improved, while improving the anchoring ability of the valve during interventional surgery, thereby reducing the risk of the valve falling off the diseased valve, improving the positioning accuracy of the valve, thereby improving the working performance of the valve, and ensuring the safety of the patient.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the valve provided in the present application in a first specific embodiment;

[0022] Figure 2 This is a schematic structural diagram of the valve provided in the present application in another specific embodiment;

[0023] Figure 3 for Figure 1 and Figure 2 A schematic diagram of a partial structure of the valve stent in the first specific embodiment;

[0024] Figure 4 for Figure 1 and Figure 2A schematic diagram of a partial structure of the valve stent in the second specific embodiment;

[0025] Figure 5 for Figure 1 and Figure 2 A schematic diagram of a partial structure of the valve stent in a third specific embodiment;

[0026] Figure 6 for Figure 1 and Figure 2 A schematic diagram of a partial structure of the valve stent in a fourth specific embodiment;

[0027] Figure 7 for Figure 1 and Figure 2 A schematic diagram of a partial structure of the valve stent in a fifth specific embodiment;

[0028] Figure 8 for Figure 1 and Figure 2 A partial structural schematic diagram of the valve stent in a sixth specific embodiment;

[0029] Fig. 9 for Figure 1 and Figure 2 A partial structural schematic diagram of the valve stent in a seventh specific embodiment;

[0030] Fig.10 for Figure 1 and Figure 2 A partial structural schematic diagram of the valve stent in an eighth specific embodiment;

[0031] Fig.11 for Figure 1 A schematic diagram of a partial structure of a valve stent;

[0032] Fig.12 for Figure 2 Schematic diagram of the structure of the valve stent;

[0033] Fig.13 for Figure 1 and Figure 2 A partial structural schematic diagram of the valve stent in a ninth specific embodiment;

[0034] Fig.14 for Figure 1 and Figure 2 Top view of the middle leaflet.

[0035] Reference numerals:

[0036] 1-valve stent;

[0037] 11-Body part;

[0038] 111- first installation port;

[0039] 112- second installation port;

[0040] 12-valve opening;

[0041] 121- side wall;

[0042] 13- first supporting portion;

[0043] 131- first paragraph;

[0044] 132-Second paragraph;

[0045] 14- second supporting portion;

[0046] 2- leaflets;

[0047] 21-first leaflet;

[0048] 22-second leaflet;

[0049] 23-third leaflet;

[0050] 3- Skirt;

[0051] X-first direction;

[0052] Y - Second direction.

[0053] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0054] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0055] It should be clear that the described embodiments are only 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 ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0056] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0057] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0058] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0059] The present application embodiment provides a valve and a valve support 1 thereof, such as Figure 1 and Figure 2 As shown, the valve comprises a valve support 1, a leaflet 2 and a skirt 3, wherein the leaflet 2 and the skirt 3 are both mounted on the valve support 1, and the leaflet 2 is located in the space formed by the valve support 1; the valve support 1 can be a grid-type structure, and the skirt is designed and sewn in different ways to block the grid of the valve support 1, so as to prevent blood from flowing back from the gap of the native valve when the heart blood flows back. The material of the skirt 3 can be PET, PTFE, or biological tissue material.

[0060] The expansion methods of the valve can include balloon expansion and self-expanding. In the balloon expansion method, a balloon is placed in the transcatheter aortic valve. After the valve is introduced into the body through a delivery system, the balloon is expanded by applying pressure, thereby driving the valve to expand and anchor at the lesion site. The self-expanding expansion method achieves expansion through the inherent characteristics of the transcatheter aortic valve stent material. When placed in the human body, the transcatheter aortic valve is radially compressed and placed in the delivery system catheter. After placement in the human body, the catheter is withdrawn so that the valve can self-expand to its original size without constraints and anchor at the lesion site. Therefore, a valve that is expanded by a balloon is a balloon-expandable valve, and a valve that is expanded by a self-expanding valve is a self-expanding valve.

[0061] After the valve is implanted in the human body, Figure 1 and Figure 2Taking the perspective shown as an example, blood flows from top to bottom, and under the action of blood pressure, the leaflets 2 open, thereby opening the blood channel of the valve. At this time, the valve is in an open state; when the blood pressure disappears, the leaflets 2 can deform and close, thereby blocking the blood channel of the valve to prevent blood from flowing back. At this time, the valve is in a closed state. At the same time, after the valve is implanted in the human body, it can usually be supported at the diseased valve of the human body, thereby replacing the diseased valve. Therefore, it is necessary to ensure the position of the valve after it is implanted in the human body, that is, it is necessary to prevent the valve from falling off after being implanted in the human body.

[0062] In the present application embodiment, Figures 3 to 10 As shown, the valve stent 1 includes a main body 11 , which is provided with a plurality of valve openings 12 , and the valve openings 12 have side walls 121 , wherein at least one first support portion 13 is provided in at least part of the valve openings 12 , and the first support portion 13 is connected to the side walls 121 .

[0063] In this embodiment, by setting a first support portion 13 in the valve orifice 12 of the valve stent 1, the first support portion 13 can improve the support performance of the valve stent 1 along the first direction X (radial). When the valve is implanted in the patient's body, the support force between the valve stent 1 and the patient's diseased valve can be improved, thereby reducing the risk of the valve falling off the diseased valve, improving the positioning accuracy of the valve, thereby improving the working performance of the valve, and ensuring the safety of the patient.

[0064] In addition, if Figures 8-10 As shown, in this embodiment, during the operation of the valve, under the action of blood pressure, the first support portion 13 can be deformed. For example, the first support portion 13 can protrude toward the outside of the valve stent 1, or can be recessed toward the inside of the valve stent 1, thereby improving the riveting effect between the valve and the native valve ring and further reducing the risk of valve detachment.

[0065] Specifically, Figures 3 to 7 As shown, the first support portion 13 divides the valve opening 12 into at least one quadrilateral structure.

[0066] As mentioned above, the valve needs to expand after being implanted into the patient's body, that is, the valve needs to be deformed, so that the valve stent 1 needs to have good deformation ability. Since the quadrilateral structure has the characteristic of being easily deformed when subjected to force, when the first support portion 13 separates the valve opening 12 into a quadrilateral structure, the valve stent 1 has a higher supporting force and also has good deformation ability, thereby improving the performance of the valve.

[0067] In a specific embodiment, Figures 3 to 7As shown, the first support portion 13 at least includes a first section 131 and a second section 132 that are bent relatively to each other; along the first direction X, the first section 131 is connected to one end of the second section 132 , and the other ends of the two are respectively connected to the corresponding side walls 121 .

[0068] In this embodiment, the relatively bent first section 131 and the second section 132 are connected to the two side walls 121 of the valve orifice 12 to form a quadrilateral structure. At this time, the first section 131 and the second section 132 can improve the supporting performance of the valve stent 1, that is, when the valve stent 1 is subjected to external force along the first direction X, the first section 131 and the second section 132 can play a supporting role; at the same time, when the valve stent 1 expands, the relatively bent first section 131 and the second section 132 can deform at the position where the two are connected, thereby helping to achieve the expansion of the valve stent 1.

[0069] The angle between the first section 131 and the second section 132 may be any angle between 0° and 180°, as long as the two are not located on the same straight line.

[0070] More specifically, if Figures 3 to 7 As shown, the first section 131 , the second section 132 and the side wall 121 have the same length, so that the first section 131 , the second section 132 and the side wall 121 form a rhombus or a square.

[0071] In this embodiment, when the first section 131, the second section 132 and the side wall 121 form a rhombus or a square, under the action of external force, the rhombus or square structure has a higher stability in deformation under the action of external force, and the rhombus or square structure also has the advantage of easy processing and improves the appearance performance of the valve stent 1.

[0072] like Figure 3 In the illustrated embodiment, after the first support portion 13 is provided, the first support portion 13 separates the valve opening 12 into a quadrilateral structure and a hexagonal structure. During the expansion of the valve stent 1, both the quadrilateral structure and the hexagonal structure can be deformed.

[0073] In another specific embodiment, Figure 6 and Figure 7 In the illustrated embodiment, at least two first support portions 13 are provided in the valve orifice 12 along the second direction Y, and there is a preset distance between adjacent first support portions 13. The preset distance can be set according to actual conditions, as long as the two first support portions 13 do not interfere with each other during the crimping process of the valve stent 1, that is, there is a gap between the two first support portions 13 along the second direction Y during the crimping process of the valve stent 1, or the two first support portions 13 just touch each other along the second direction Y, thereby preventing the two first support portions 13 from squeezing each other and affecting the expansion of the valve stent 1.

[0074] In this embodiment, when at least two first support portions 13 are provided in the valve orifice 12 , the valve orifice 12 can be divided into at least two quadrilaterals. When the valve stent 1 expands, the at least two quadrilateral structures can further promote the expansion of the valve stent 1 .

[0075] The two first support portions 13 may include a first section 131 and a second section 132 that are bent relative to each other, and the first section 131 and the second section 132 are both connected to the side wall 121 of the valve opening 12. Figure 6 and Figure 7 In the illustrated embodiment, along the second direction Y, two first support portions 13 are disposed in the valve opening 12 , thereby dividing the valve opening 12 into two quadrilateral structures and one hexagonal structure.

[0076] In the above embodiments, the shape of the valve opening 12 may be a hexagon. Specifically, the shape of the valve opening 12 may be a regular hexagon, that is, the lengths of the side walls 121 of the valve opening 12 are equal.

[0077] In this embodiment, when the hexagonal valve opening 12 is subjected to external force, the deformation amount at each location is similar, so that the valve stent 1 can expand evenly, improving the performance of the valve in the patient's body. At the same time, it can also simplify the structure of the valve stent 1 and improve the appearance performance of the valve.

[0078] On the other hand, the material of the valve support 1 includes cobalt-chromium alloy.

[0079] Meanwhile, the first supporting portion 13 is disposed at the flap 12 corresponding to the skirt 3 .

[0080] One end of the skirt 3 of the traditional valve is connected and fixed to the leaflet 2, and the other end is connected and fixed to the bottom end of the valve stent 1, so that the valve is compressed in the catheter. During percutaneous interventional heart valve replacement, the valve is expanded at the desired position by balloon inflation, thereby replacing the native valve. However, the native valve either has asynchronous opening and closing of the leaflet 2, causing severe regurgitation, or the leaflet 2 is severely calcified and incompletely opened and closed. In either case, after the percutaneous implantation of the valve, the stent 1 will be more likely to not fit tightly with the surrounding annulus, so that blood flows from the gap at the edge of the valve into the ventricle, causing paravalvular leakage. When the paravalvular leakage is severe, the patient will experience complications such as chest tightness, shortness of breath, hemolysis, anemia, and angina pectoris after surgery.

[0081] In order to solve this technical problem, Figure 1 and Figure 2As shown, after the skirt 3 is installed on the valve support 1, the area of ​​the skirt 3 is greater than or equal to the area of ​​the valve support 1, so that the skirt 3 can move freely. Therefore, after the valve is implanted in the human body, since the skirt 3 can move freely, it can fill the gap between the valve and the surrounding annulus under the pressure of blood, so that the valve fits closely with the surrounding annulus after implantation in the human body, preventing blood from flowing from the edge of the valve into the ventricle, reducing the occurrence of paravalvular leakage, and finally achieving the purpose of treatment.

[0082] More specifically, if Figure 1 and Figure 2 As shown, the skirt 3 is closed along the circumference of the valve stent 1. After the valve is percutaneously implanted, the closed skirt 3 fits more closely with the annular surface of the native valve, which can reduce the blood flowing into the patient's ventricle from the gap of the valve stent 1, thereby reducing the paravalvular leakage of the valve, reducing the occurrence of complications such as chest tightness, shortness of breath, hemolysis, anemia, angina pectoris, etc. after valve replacement surgery, and improving the safety of the valve.

[0083] In a specific embodiment, along the height direction of the valve support 1, the skirt 3 includes a top end and a bottom end, and the top end and the bottom end are mounted on the valve support 1, for example, the top end and the bottom end are sewn to the valve support 1. At the same time, between the top end and the bottom end, the area of ​​the skirt 3 is greater than or equal to the area of ​​the valve support 1, and the skirt 3 near the top end and the skirt 3 near the bottom end are connected to form an annular structure or a pleated structure.

[0084] In this embodiment, when the area of ​​the skirt 3 between the top and the bottom is larger than the area of ​​the valve support 1, there is a gap between the skirt 3 between the top and the bottom and the valve support 1, which can move freely, so that the gap between the valve and the surrounding annulus can be filled under the pressure of blood, so that the valve fits closely with the surrounding annulus after being placed in the human body, preventing blood from flowing from the edge of the valve into the ventricle, and reducing the occurrence of paravalvular leakage. At the same time, when the skirt 3 near the top and the skirt 3 near the bottom are connected, it helps to form an annular structure or a pleated structure on the skirt 3.

[0085] Among them, when processing the valve, when the top and bottom ends of the skirt 3 are sewn on the valve support 1, since the area of ​​the skirt 3 between the top and the bottom is greater than or equal to the area of ​​the valve support 1, the skirt 3 can pinch out an annular structure or a pleated structure by itself, and then sew from bottom to top or from top to bottom between the top and the bottom with needle and thread, thereby forming an annular structure or a pleated structure.

[0086] In another specific embodiment, Fig.11 As shown, the valve stent 1 includes a plurality of first mounting openings 111, and the skirt 3 is mounted on the first mounting openings 111 and blocks the first mounting openings 111; along the second direction Y, the plurality of first mounting openings 111 are located at the same height so that the skirt 3 is Figure 1The ring structure shown.

[0087] In another specific embodiment, Fig.12 As shown, along the second direction Y, a plurality of first installation openings 111 are located at different heights, so that the skirt 3 has a pleated structure.

[0088] In the above two embodiments, the structure surrounded by the skirt 3 is determined according to the position of each first installation opening 111, that is, when the first installation openings 111 are located at the same height, the skirt 3 forms an annular suture ring, and when the heights of the first installation openings 111 are different, the skirt 3 forms an irregular shaped suture ring. No matter which one, it can fit tightly with the surrounding annular surface after implantation, prevent blood from flowing from the edge of the valve into the ventricle, reduce the occurrence of paravalvular leakage, and ultimately achieve the purpose of treatment.

[0089] In addition, the skirt 3 is sewn to the valve support 1 at the first installation opening 111, so that the valve does not need to be provided with an additional support frame for the skirt 3, but the skirt 3 is directly sewn to the valve support 1, thereby simplifying the structure of the valve.

[0090] In the above embodiments, Figure 1 and Figure 2 As shown, the skirt 3 is a single-layer structure, and a portion of the skirt 3 is located inside the valve stent 1 , while the other portion extends out of the valve stent 1 through the first mounting opening 111 .

[0091] In this embodiment, when the skirt 3 is sewn on the valve stent 1, the single-layer skirt 3 can be first placed in the valve stent 1, and then a part of the skirt 3 is extended to the outside of the valve stent 1 through the first installation opening 111, and sewn at the first installation opening 111, so that the inner and outer sides of the valve stent 1 have skirts 3, thereby further reducing the occurrence of paravalvular leakage and improving the performance of the valve. In addition, when the skirt 3 located on the inner and outer sides of the valve stent 1 is an integrated structure, it can also simplify the difficulty of sewing the skirt 3 and improve its strength and reliability.

[0092] On the other hand, Figure 3 As shown, the valve stent 1 includes a second mounting opening 112, and the second mounting opening 112 and the first mounting opening 111 are arranged along the second direction Y, and the leaflet 2 is mounted on the second mounting opening 112 and blocks the second mounting opening 112. Figure 3 As shown, the valve stent 1 has three second mounting openings 112, and the valve includes three leaflets 2, the three second mounting openings 112 are all used to mount the leaflets 2 (the leaflets 2 can be mounted on the second mounting openings 112 by sewing or bonding), and the angle between the three second mounting openings 112 is 120°, as shown in FIG. Fig.14As shown, the first lobe 21, the second lobe 22 and the third lobe 23 are symmetrically distributed, and the first lobe 21, the second lobe 22 and the third lobe 23 are the same in size.

[0093] like Fig.13 As shown, a second supporting portion 14 is provided at the second mounting opening 112 , and the second supporting portion 14 is used to support the leaflet 2 along the first direction X.

[0094] In this embodiment, when the valve is squeezed before being implanted into the patient's body, the valve stent 1 of the valve is deformed by the squeezing force. By providing the second support portion 14, after the valve stent 1 is deformed and contracts, the second support portion 14 can support the leaflets 2, thereby preventing the leaflets 2 from being crushed by the valve stent 1, thereby improving the safety and reliability of the valve.

[0095] Among them, Fig.13 As shown, the second supporting portion 14 can extend along the first direction X, so as to support the leaflet 2 in the radial direction during the process of pressing and gripping the valve.

[0096] The valve described in the embodiments of the present application is a balloon-expandable valve.

[0097] As mentioned above, the expansion methods of the valve include self-expanding and balloon-expanding. For the self-expanding valve, since the height of its valve stent 1 is relatively large, in the future, when the self-expanding valve is used again for the patient who has already used the self-expanding valve for "valve-in-valve" replacement surgery, the newly implanted self-expanding valve has the risk of blocking the entrance of the coronary artery, while the height of the valve stent 1 of the balloon-expandable valve is much smaller than the height of the valve stent of the self-expanding valve, and when the "valve-in-valve" replacement surgery is performed again in the future, it will not block the entrance of the coronary artery at all. Therefore, the balloon-expandable valve is safer.

[0098] In addition, the valve in the embodiment of the present application is a balloon-expandable valve, so that when the skirt 3 is sewn to the valve stent 1, compared with the self-expanding valve, the circumferential closed structure of the skirt 3 can be achieved without a traction rope, thereby simplifying the structure of the valve.

[0099] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An interventional valve stent, characterized in that: The valve stent (1) comprises a main body (11), the main body (11) being provided with a plurality of valve openings (12), the valve openings (12) having side walls (121); Wherein, along the second direction (Y), at least part of the valve opening (12) is provided with at least two first support portions (13), the first support portions (13) being connected to the side wall (121), and the at least two first support portions (13) being capable of dividing the valve opening (12) into at least two quadrilaterals; The valve support (1) comprises a second mounting opening (112), wherein a second supporting portion (14) is provided at the second mounting opening (112), wherein the leaflets (2) of the valve can be mounted on the second mounting opening (112) and seal the second mounting opening (112), wherein the second supporting portion (14) extends along a first direction (X), and is used to support the leaflets (2) in a radial direction when the valve is pressed and gripped.

2. The invasive valve stent according to claim 1, characterized in that: The first supporting portion (13) comprises at least a first section (131) and a second section (132) that are bent relative to each other; Along a first direction (X), one end of the first section (131) is connected to the second section (132), and the other ends of the two are respectively connected to the corresponding side wall (121).

3. The invasive valve stent according to claim 2, characterized in that: The first section (131), the second section (132) and the side wall (121) have the same length, so that the first section (131), the second section (132) and the side wall (121) form a rhombus or a square.

4. The invasive valve stent according to claim 2, characterized in that: There is a preset distance between adjacent first supporting portions (13).

5. The invasive valve stent according to any one of claims 1 to 4, characterized in that: At least a portion of the first support portion (13) can be convex toward the outside of the valve opening (12), or at least a portion of the first support portion (13) can be concave toward the outside of the valve opening (12).

6. The invasive valve stent according to any one of claims 1 to 4, characterized in that: The valve opening (12) is in the shape of a hexagon.

7. The invasive valve stent according to any one of claims 1 to 4, characterized in that: The material of the valve stent (1) includes cobalt-based alloy, stainless steel or nickel titanium.

8. A valve, characterized in that: The valve comprises: A valve stent (1), wherein the valve stent (1) is the interventional valve stent (1) according to any one of claims 1 to 7; A valve leaflet (2), wherein the valve leaflet (2) is mounted on the valve support (1).

9. The valve according to claim 8, characterized in that The valve is a balloon-expandable valve.

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