Artificial aortic valve deployment stent

Abstract

The present disclosure relates to the technical field of medical devices, and in particular to an artificial arterial valve deployment stent, wherein the artificial arterial valve deployment stent comprises a valve support member, the valve support member is used to support the valve, so that a valve pocket is formed between the valve and the sinus wall. This solution reduces the difficulty of replacing the arterial valve and improves the success rate of the replacement.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to an artificial aortic valve deployment stent. Background Art

[0002] Complex congenital heart diseases such as pulmonary atresia, tetralogy of Fallot (double outlet right ventricle) with severe pulmonary artery stenosis, complex transposition of the great arteries, and common arterial trunk often require reconstruction of the pulmonary valve structure and function due to the lack of connection between the right ventricle and the pulmonary artery, or extreme stenosis (dysplasia) of the pulmonary valve. Loss of aortic valve function caused by congenital aortic stenosis and acquired aortic valve disease in children requires aortic valve repair. In related technologies, allogeneic valved conduits, porcine valve Dacron conduits, bovine jugular vein conduits, bovine pericardial valved conduits or patches can be used as repair materials for the cardiac outflow tract.

[0003] However, the applicant found that since the shape of the above-mentioned artificial aortic valve material is relatively simple, during the operation, the doctor often needs to use the cut artificial aortic valve to replace the aortic valve. During this process, the doctor needs to manually adjust the shape of the artificial aortic valve to ensure that the shape of the valve pocket formed after replacement is close to the shape of the valve pocket in the human body, so that the opening and closing functions of the artificial aortic valve after replacement are perfect, thereby increasing the difficulty of the aortic valve replacement operation and reducing the success rate of the replacement. Summary of the invention

[0004] In order to solve the problems in the related art, an embodiment of the present disclosure provides an artificial arterial valve deployment stent.

[0005] In a first aspect, an artificial arterial valve deployment stent is provided in an embodiment of the present disclosure, characterized in that the artificial arterial valve deployment stent includes a valve support member, which is used to support the valve so that a valve pocket is formed between the valve and the sinus wall.

[0006] In one embodiment of the present disclosure, the artificial arterial valve deployment stent further includes a back support member connected to the valve support member, and the back support member is used to adhere to the native sinus wall or the artificial sinus wall.

[0007] In one embodiment of the present disclosure, the valve support member includes an apposition surface support arm, and the back support member is connected to both ends of the apposition surface support arm.

[0008] In one embodiment of the present disclosure, at least one location on the apposition surface arm is detachably connected to the artificial aortic valve.

[0009] In one embodiment of the present disclosure, the valve support further comprises a longitudinal arm;

[0010] One end of the longitudinal arm is connected to the mating surface arm, and the other end of the longitudinal arm is connected to the back support member. Preferably, the other end of the longitudinal arm can be connected to the lower edge of the back support member.

[0011] In one embodiment of the present disclosure, one end of the longitudinal support arm is connected to the top of the mating surface support arm, wherein the top of the mating surface support arm is the farthest distance from the mating surface support arm to the upper edge of the back support member;

[0012] The other end of the longitudinal support arm is connected to the bottom of the lower edge of the back support, wherein the bottom of the lower edge of the back support is the farthest distance from the lower edge of the back support to the upper edge of the back support.

[0013] In one embodiment of the present disclosure, the mating surface support arm includes two sub-support arms, and the angle between the two sub-support arms is 120°-180°.

[0014] In one embodiment of the present disclosure, the mating surface support arm is arc-shaped.

[0015] In one embodiment of the present disclosure, the upper edge of the back support and the mating surface arm form a closed circle or a closed ellipse.

[0016] In one embodiment of the present disclosure, the lower edge of the back support is arc-shaped.

[0017] In one embodiment of the present disclosure, at least one of the valve support and the back support comprises at least one through hole.

[0018] In one embodiment of the present disclosure, the back support is integrally formed with the valve support.

[0019] In one embodiment of the present disclosure, the back support and the valve support are made of polypropylene, polyetheretherketone, polyurethane, titanium alloy or stainless steel.

[0020] In one embodiment of the present disclosure, at least one of the back support and the valve support is used for suture connection with the artificial aortic valve, or, at least one of the back support and the valve support is used for adhesive connection with the artificial aortic valve, or, at least one of the back support and the valve support is used for detachable connection with the artificial aortic valve via a clamping assembly.

[0021] According to the technical solution provided by the embodiment of the present disclosure, the artificial arterial valve deployment stent is characterized in that the artificial arterial valve deployment stent includes a valve support member, and the valve support member is used to support the valve so that a valve pocket is formed between the valve and the sinus wall. During the operation, since the shape of the artificial arterial valve has been fixed by the artificial arterial valve deployment stent before the operation, there is no need for the doctor to adjust it during the operation. Therefore, the doctor can easily sew the valve supported by the valve support member in the artificial arterial valve deployment stent and the valve ring at a determined position, so that a valve pocket can be formed between the artificial arterial valve and the sinus wall, and ensure that the shape of the valve pocket is relatively close to the shape of the valve pocket in the human body, and the opening and closing functions of the artificial arterial valve after replacement are perfect, and then the artificial arterial valve is separated from the artificial arterial valve deployment stent, and the artificial arterial valve deployment stent is removed to complete the operation. Therefore, this solution reduces the difficulty of replacing the aortic valve and improves the success rate of the replacement.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objectives and advantages of the present disclosure will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings. In the accompanying drawings:

[0024] Figure 1 A schematic structural diagram of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown.

[0025] Figure 2 A schematic structural diagram of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown.

[0026] Figure 3 A longitudinal cross-sectional view showing an artificial aortic valve deployment stent according to an embodiment of the present disclosure.

[0027] Figure 4 A schematic structural diagram of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown.

[0028] Figure 5 A schematic structural diagram of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown.

[0029] Figure 6 A schematic structural diagram of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0030] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0031] In the present disclosure, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof exist or are added.

[0032] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] In the present disclosure, if it involves operations of obtaining user information or user data or displaying user information or user data to others, the operations are all authorized and confirmed by the user, or actively selected by the user.

[0034] In the related art, when performing an aortic valve replacement operation, the doctor often needs to first use a cut artificial aortic valve to replace the aortic valve. During this process, the doctor needs to manually adjust the shape of the artificial aortic valve to ensure that the shape of the valve pocket formed after replacement is close to the shape of the valve pocket in the human body, so that the opening and closing functions of the artificial aortic valve after replacement are perfect, thereby increasing the difficulty of the aortic valve replacement operation and reducing the success rate of the replacement.

[0035] In order to solve the above problems, an embodiment of the present disclosure provides an artificial arterial valve deployment stent.

[0036] According to the technical solution provided by the embodiment of the present disclosure, the artificial arterial valve deployment stent is characterized in that the artificial arterial valve deployment stent includes a valve support member, and the valve support member is used to support the valve so that a valve pocket is formed between the valve and the sinus wall. During the operation, since the shape of the artificial arterial valve has been fixed by the artificial arterial valve deployment stent before the operation, there is no need for the doctor to adjust it during the operation. Therefore, the doctor can easily sew the valve supported by the valve support member in the artificial arterial valve deployment stent and the valve ring at a determined position, so that a valve pocket can be formed between the artificial arterial valve and the sinus wall, and ensure that the shape of the valve pocket is relatively close to the shape of the valve pocket in the human body, and the opening and closing functions of the artificial arterial valve after replacement are perfect, and then the artificial arterial valve is separated from the artificial arterial valve deployment stent, and the artificial arterial valve deployment stent is removed to complete the operation. Therefore, this solution reduces the difficulty of replacing the aortic valve and improves the success rate of the replacement.

[0037] Figure 1 A schematic diagram of the structure of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown, Figure 1 As shown, the artificial arterial valve deployment stent includes a valve support 200, which is used to support the valve 300 so that a valve pocket 301 is formed between the valve 300 and the sinus wall, wherein the sinus wall can be a native sinus wall or an artificial sinus wall.

[0038] According to the technical solution provided by the embodiment of the present disclosure, the artificial arterial valve deployment stent is characterized in that the artificial arterial valve deployment stent includes a valve support member, and the valve support member is used to support the valve so that a valve pocket is formed between the valve and the sinus wall. During the operation, since the shape of the artificial arterial valve has been fixed by the artificial arterial valve deployment stent before the operation, there is no need for the doctor to adjust it during the operation. Therefore, the doctor can easily sew the valve supported by the valve support member in the artificial arterial valve deployment stent and the valve ring at a determined position, so that a valve pocket can be formed between the artificial arterial valve and the sinus wall, and ensure that the shape of the valve pocket is relatively close to the shape of the valve pocket in the human body, and the opening and closing functions of the artificial arterial valve after replacement are perfect, and then the artificial arterial valve is separated from the artificial arterial valve deployment stent, and the artificial arterial valve deployment stent is removed to complete the operation. Therefore, this solution reduces the difficulty of replacing the aortic valve and improves the success rate of the replacement.

[0039] Figure 2 A schematic structural diagram of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown. Figure 3 A longitudinal cross-sectional view of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown, Figure 2-3 As shown, the artificial arterial valve deployment stent further includes a back support member 100 connected to the valve support member 200 , and the back support member 100 is used to adhere to the sinus wall 400 .

[0040] In one embodiment of the present disclosure, at least one of the valve support and the back support. Figure 2 As shown, the back support includes at least one through hole 104 .

[0041] In one embodiment of the present disclosure, the back support is integrally formed with the valve support.

[0042] In one embodiment of the present disclosure, the back support and the valve support are made of polypropylene, polyetheretherketone, polyurethane, titanium alloy or stainless steel.

[0043] In one embodiment of the present disclosure, at least one of the back support and the valve support is used for suture connection with the artificial aortic valve, or, at least one of the back support and the valve support is used for adhesive connection with the artificial aortic valve, or, at least one of the back support and the valve support is used for detachable connection with the artificial aortic valve via a clamping assembly.

[0044] According to the technical solution provided by the embodiment of the present disclosure, the artificial arterial valve deployment stent is characterized in that the artificial arterial valve deployment stent includes a valve support member, and the valve support member is used to support the valve so that a valve pocket is formed between the valve and the sinus wall. During the operation, since the shape of the artificial arterial valve has been fixed by the artificial arterial valve deployment stent before the operation, there is no need for the doctor to adjust it during the operation. Therefore, the doctor can easily sew the valve supported by the valve support member in the artificial arterial valve deployment stent and the valve ring at a determined position, so that a valve pocket can be formed between the artificial arterial valve and the sinus wall, and ensure that the shape of the valve pocket is relatively close to the shape of the valve pocket in the human body, and the opening and closing functions of the artificial arterial valve after replacement are perfect, and then the artificial arterial valve is separated from the artificial arterial valve deployment stent, and the artificial arterial valve deployment stent is removed to complete the operation. Therefore, this solution reduces the difficulty of replacing the aortic valve and improves the success rate of the replacement.

[0045] In one embodiment of the present disclosure, Figure 4 A schematic diagram of the structure of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown, Figure 4 As shown, the valve support component includes an apposition surface support arm 201, and the back support component 100 is connected to both ends of the apposition surface support arm 201.

[0046] Preferably, two ends of the upper edge 101 of the back support 100 may be connected to two ends of the mating surface support arm 201 respectively.

[0047] In one embodiment of the present disclosure, at least one location on the apposition surface arm is detachably connected to the artificial aortic valve.

[0048] Preferably, Figure 4 As shown, the artificial arterial valve 300 can be connected to the top 202 of the mate surface arm 201, both ends of the mate surface arm 201, and the bottom 103 of the lower edge 102 of the back support 100 respectively, wherein the top 202 of the mate surface arm 201 is the farthest distance from the mate surface arm 201 to the upper edge 101 of the back support 100, and the bottom 103 of the lower edge 102 of the back support 100 is the farthest distance from the lower edge 102 of the back support 100 to the upper edge 101 of the back support 100.

[0049] In the technical solution provided in the embodiment of the present disclosure, by making the valve support component include a mating surface arm and connecting the back support component to both ends of the mating surface arm, the weight of the valve support component can be reduced and the cost of manufacturing the valve support component can be reduced without affecting the function of the valve support component in supporting the artificial aortic valve.

[0050] In one embodiment of the present disclosure, Figure 4 As shown, the valve support also includes a longitudinal arm 203; one end of the longitudinal arm 203 is connected to the apposition arm 201, and the other end of the longitudinal arm 203 is connected to the back support 100. Preferably, the other end of the longitudinal arm 203 can be connected to the lower edge 102 of the back support 100.

[0051] In one embodiment of the present disclosure, Figure 4 As shown, one end of the longitudinal arm 203 is connected to the top 202 of the mating surface arm 201, and the other end of the longitudinal arm 203 is connected to the bottom 103 of the lower edge 102 of the back support 100, wherein the top 202 of the mating surface arm 201 is the farthest distance from the mating surface arm 201 to the upper edge 101 of the back support 100, and the bottom 103 of the lower edge 102 of the back support 100 is the farthest distance from the lower edge 102 of the back support 100 to the upper edge 101 of the back support 100.

[0052] In the technical solution provided in the embodiment of the present disclosure, by providing a longitudinal support arm and connecting one end of the longitudinal support arm to the mating surface support arm and the other end of the longitudinal support arm to the back support member, the valve support member can support the artificial aortic valve from multiple different angles, thereby ensuring that the shape of the artificial aortic valve meets the requirements before surgery.

[0053] In one embodiment of the present disclosure, Figure 5 A schematic diagram of the structure of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown, Figure 5 As shown, the mating surface support arm includes two sub-support arms 204, and the angle 205 between the two sub-support arms 204 is 120°-180°.

[0054] In one embodiment of the present disclosure, in one embodiment of the present disclosure, the mating surface support arm is arc-shaped.

[0055] In one embodiment of the present disclosure, the upper edge of the back support and the mating surface arm form a closed circle or a closed ellipse.

[0056] For example, Figure 6 A schematic diagram of the structure of an artificial aortic valve deployment stent according to an embodiment of the present disclosure is shown, Figure 6As shown, the mating surface support arm 201 is arc-shaped, and the upper edge 101 of the back support member 100 and the mating surface support arm 201 form a closed circle or an ellipse.

[0057] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present disclosure is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other.

Claims

1. An artificial aortic valve deployment stent, characterized in that: The artificial arterial valve deployment stent comprises a valve support member, and the valve support member is used to support the valve so that a valve pocket is formed between the valve and the sinus wall; The artificial arterial valve deployment stent also includes a back support member connected to the valve support member, and the back support member is used to adhere to the sinus wall; The valve support member includes an apposition surface support arm, and the back support member is connected to both ends of the apposition surface support arm; The valve support also includes a longitudinal arm; One end of the longitudinal support arm is connected to the top of the mating surface support arm, wherein the top of the mating surface support arm is the farthest distance from the mating surface support arm to the upper edge of the back support member; The other end of the longitudinal support arm is connected to the bottom of the lower edge of the back support, wherein the bottom of the lower edge of the back support is the farthest distance from the lower edge of the back support to the upper edge of the back support.

2. The artificial aortic valve deployment stent according to claim 1, characterized in that: At least one location on the apposition surface support arm is detachably connected to the artificial arterial valve.

3. The artificial aortic valve deployment stent according to claim 1, characterized in that: The mating surface support arm includes two sub-support arms, and the angle between the two sub-support arms is 120°-180°.

4. The artificial aortic valve deployment stent according to claim 1, characterized in that: The mating surface support arm is arc-shaped.

5. The artificial aortic valve deployment stent according to claim 4, characterized in that: The upper edge of the back support member and the mating surface support arm form a closed circle or a closed ellipse.

6. The artificial aortic valve deployment stent according to any one of claims 1 to 4, characterized in that: At least one of the valve support and the back support includes at least one through hole.

7. The artificial aortic valve deployment stent according to any one of claims 1 to 4, characterized in that: The back support member is integrally formed with the valve support member.

8. The artificial aortic valve deployment stent according to any one of claims 1 to 4, characterized in that: The back support member and the valve support member are made of polypropylene, polyetheretherketone, polyurethane, titanium alloy or stainless steel.

9. The artificial aortic valve deployment stent according to any one of claims 1 to 4, characterized in that: At least one of the back support and the valve support is used for suture connection with the artificial arterial valve, or at least one of the back support and the valve support is used for adhesive connection with the artificial arterial valve, or at least one of the back support and the valve support is used for detachable connection with the artificial arterial valve via a clamping assembly.

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