Valve stent with good stability

Abstract

The invention relates to the technical field of medical instruments, and discloses a good-stability valve stent which comprises an inner supporting plate, a connecting body is fixedly connected to the bottom end of the inner supporting plate, a grabbing plate is fixedly connected to the bottom end of the connecting body, a through hole is formed in the side edge of the grabbing plate, a grabbing foot is fixedly installed at the bottom end of the grabbing plate, and an inner upper stent is fixedly connected to the top end of the inner supporting plate; a connecting assembly is fixedly installed on the side edge of the inner supporting plate, an outer supporting plate is fixedly connected to the side edge of the connecting assembly, and an outer support is fixedly connected to the top end of the outer supporting plate. The valve stent is prevented from shifting, the stability of the valve stent in the body is guaranteed, the valve stent is monitored, an abnormal signal is sent to a guardian through the micro wireless communication module under the abnormal condition, the abnormal signal of the valve stent can be recognized in time, valve dysfunction, vascular stenosis or thrombosis can be accurately captured, and the valve stent can be used for monitoring the valve stent. And the stability and the use safety of the valve stent in the body are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a valve stent with good stability. Background Art

[0002] In the field of cardiovascular medicine, valvular disease is a type of disease that poses a serious threat to human health. Valvular stents, as important medical devices for treating valvular disease, have been widely used and deeply studied in recent years. They have brought new hope to many valvular disease patients and significantly improved their quality of life and prognosis. The main function of valvular stents is to replace or repair damaged valves, restore the normal function of valves, and ensure the unidirectional flow of blood in the heart and vascular system.

[0003] When the heart valve cannot work properly due to lesions (such as stenosis, insufficiency, etc.), the valve stent can be implanted in the body through interventional surgery or surgical procedures. During the beating of the heart, the valve component of the valve stent is like a normal valve. It opens when the heart contracts, allowing blood to flow smoothly from one heart chamber to another or into the blood vessels; it closes when the heart relaxes to prevent blood from flowing back. This process effectively maintains the heart's pumping function and ensures blood supply to organs throughout the body. For many patients with decreased heart function due to valvular disease, after the valve stent implantation, heart function is significantly improved, the patient's mobility is enhanced, and symptoms such as dyspnea and fatigue are significantly alleviated, allowing patients to return to normal life and work, greatly improving their quality of life.

[0004] As an important innovative achievement in the field of cardiovascular medicine, valve stents have brought revolutionary changes to the treatment of valvular diseases. Through their unique structural design and working principles, they have effectively restored the normal function of the valve, bringing good news to many patients. With the continuous development and improvement of technology, valve stents are expected to provide safer and more effective treatment options for more patients with valvular diseases in the future, further promoting the progress of cardiovascular medicine.

[0005] The valve stent needs to withstand the mechanical stress generated by the beating heart and the impact of high-speed blood flow in the body for a long time. Over time, the stent structure may be damaged, affecting its support stability for the valve. At the same time, during the dynamic movement of the heart, especially when the heart rate is too fast or too slow or the heart structure changes, the fixation between the stent and the tissue may be affected, causing the stent to move slightly. Long-term accumulation may cause the fixed structure to loosen and affect the stability of the valve stent. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies of the prior art, the present invention provides a valve stent with good stability. It has the ability to grasp the surrounding heart tissue through the grasping plate and through holes, prevent the stent from shifting, ensure its stability in the body. At the same time, the through holes can change the path and direction of blood flow. When blood flows through the through holes, the force that originally concentrated on impacting the stent is dispersed. By monitoring the valve stent, in case of an abnormality, an abnormal signal is sent to the guardian through the micro wireless communication module, enabling timely identification of the abnormal signal of the valve stent, accurately capturing abnormal valve function, vascular stenosis or thrombosis, and enhancing the stability and use safety of the valve stent and other advantages.

[0008] (II) Technical Solution

[0009] To achieve the above object, the present invention provides the following technical solution: A valve stent with good stability, including an inner support plate. The bottom end of the inner support plate is fixedly connected with a connecting body. The bottom end of the connecting body is fixedly connected with a grasping plate. Through holes are opened on the side of the grasping plate, and grasping feet are fixedly installed at the bottom end. The top end of the inner support plate is fixedly connected with an inner upper support, and the middle side is fixedly connected with an inner lower support. A connecting component is fixedly installed on the side of the inner support plate. An outer support plate is fixedly connected to the side of the connecting component. The top end of the outer support plate is fixedly connected with an outer support.

[0010] Preferably, there are five groups of the inner support plates arranged in a circumferential array, and each two adjacent inner support plates are connected through the inner lower support and the inner upper support.

[0011] Preferably, two grasping plates are relatively fixedly connected to the bottom end of each connecting body.

[0012] Preferably, two through holes are relatively opened on the side of each grasping plate.

[0013] Preferably, the connecting component is composed of two mutually sleeved components.

[0014] Preferably, a micro monitoring component is also arranged inside the inner support plate.

[0015] Preferably, the micro monitoring component includes a micro sensor component and a micro wireless communication module. The micro sensor component includes a micro pressure sensor and a micro tachometer. The speed and pressure data of the valve stent are monitored through the micro pressure sensor and the micro tachometer.

[0016] Preferably, the specific working steps of the micro monitoring component are as follows:

[0017] S1. Obtain the data of the micro pressure sensor and the micro tachometer respectively, and mark them as pressure data Ys and speed data Ss;

[0018] S2. Calculate the pressure change value Ybh and the speed change value Sbh based on the pressure data Ys and the speed data Ss. The calculation formula for the pressure change value Ybh is as follows:

[0019]

[0020] In the calculation formula, SYbh represents the current pressure data value, PYbh represents the historical average pressure data value, SYbh - PYbh represents the difference between the current pressure data value and the historical average pressure data value, and Byc represents the standard deviation between the current pressure data value and the historical average pressure data value;

[0021] The calculation formula for the speed change value Sbh is as follows:

[0022]

[0023] In the calculation formula, SSbh represents the current speed data value, PSbh represents the historical average speed data value, SSbh - PSbh represents the difference between the current speed data value and the historical average speed data value, and Bsc represents the standard deviation between the current speed data value and the historical average speed data value;

[0024] S3. Determine whether the valve stent is abnormal according to the pressure change value Ybh and the speed change value Sbh;

[0025] S4. Send an abnormal signal to the micro wireless communication module;

[0026] S5. The micro wireless communication module sends the abnormal signal to the guardian.

[0027] Preferably, the determination method for S3 to determine whether the valve stent is loose according to the pressure change value Ybh and the speed change value Sbh is as follows:

[0028] When the pressure change value Ybh is greater than the pressure change standard value, it represents that the valve stent is abnormal; when the speed change value Sbh is greater than the speed change standard value, it also represents that the valve stent is abnormal. In any of the above two situations, an abnormal signal needs to be sent to the micro wireless communication module.

[0029] Preferably, a polyether ether ketone coating is constructed on the surface of the valve stent, and the valve stent is made of metal materials such as stainless steel and nitinol, as well as biodegradable materials.

[0030] Compared with the prior art, the present invention provides a valve stent with good stability and has the following beneficial effects:

[0031] 1. The valve stent of the present invention is made of metal materials such as stainless steel and nitinol alloy, as well as biodegradable materials, which can provide stable and lasting support for the valve, ensure the normal opening and closing function of the valve during the heartbeat, and maintain the blood circulation of the heart. Nitinol alloy can return to a pre-set shape at a specific temperature. Utilizing this property, the stent is compressed to a smaller size for easy delivery to the diseased site through a catheter. After reaching the designated position, the stent resumes its original shape in the body temperature environment, achieving precise positioning and effective support. The biodegradable material gradually degrades and is absorbed by the human body in vivo, avoiding potential risks that may be brought by traditional stents permanently remaining in the body, such as long-term inflammatory reactions and thrombus formation. The polyetheretherketone coating can improve the biocompatibility of the stainless steel stent, reduce the adsorption of proteins and platelets in the blood, and lower the risk of thrombus formation. At the same time, the good chemical stability of the polyetheretherketone coating can prevent the stainless steel from corroding in the body environment and extend the service life of the stent.

[0032] 2. When the valve stent is implanted into the heart, the present invention uses a grasping plate to grasp the surrounding heart tissue pierced by the stent to prevent the stent from shifting and ensure its stability in the body. Especially under the blood flow impact caused by the heartbeat, it can still maintain a good fixed state. After the valve stent is implanted into the heart, the blood flow caused by the heartbeat flows through the through holes, reducing the blood impact on the valve stent. At the same time, the through holes can change the path and direction of the blood flow. The blood flow passes through the through holes, dispersing the force that originally concentrated on impacting the stent. And when the heart beats, the blood flow impact will form pressure concentration points at some parts of the stent, which is likely to cause stent damage over a long time. The through holes can guide the blood flow to be evenly distributed on the surface of the stent, avoiding excessive local pressure and effectively improving the service life of the valve stent.

[0033] 3. The present invention monitors the pressure received by the implanted valve stent through a micro pressure sensor and monitors the moving speed of the implanted valve stent through a micro tachometer. In case of an abnormality, an abnormal signal is sent to the guardian through a micro wireless communication module, which can timely identify the abnormal signal of the valve stent, accurately capture problems such as abnormal valve function, vascular stenosis or thrombus formation, and facilitate timely notifying the guardian to take the patient to seek medical treatment. Doctors can intervene before the condition deteriorates, greatly reducing the risk of the patient having serious complications or even endangering life. Brief Description of the Drawings

[0034] Figure 1 is a three-dimensional schematic diagram of the structure of the present invention;

[0035] Figure 2 is an isometric view schematic diagram of the structure of the present invention;

[0036] Figure 3 is a three-dimensional schematic diagram of the structure of the present invention;

[0037] Figure 4 This is the front view schematic diagram of the structure of the present invention.

[0038] Among them, 1 is the inner support plate; 2 is the connecting body; 3 is the grasping plate; 4 is the through hole; 5 is the grasping foot; 6 is the inner upper support; 7 is the inner lower support; 8 is the connecting component; 9 is the outer support plate; 10 is the outer support; 11 is the micro monitoring component. Specific embodiments

[0039] 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 only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1-4 , a valve stent with good stability, including an inner support plate 1, the bottom end of the inner support plate 1 is fixedly connected with a connecting body 2, the bottom end of the connecting body 2 is fixedly connected with a grasping plate 3, through holes 4 are opened on the side of the grasping plate 3, and grasping feet 5 are fixedly installed at the bottom end. The top end of the inner support plate 1 is fixedly connected with an inner upper support 6, and the middle side is fixedly connected with an inner lower support 7. A connecting component 8 is fixedly installed on the side of the inner support plate 1, the side of the connecting component 8 is fixedly connected with an outer support plate 9, and the top end of the outer support plate 9 is fixedly connected with an outer support 10;

[0041] A polyetheretherketone coating is constructed on the surface of the valve stent, and the valve stent is made of metal materials such as stainless steel and nitinol and biodegradable materials;

[0042] The valve stent is made of metal materials such as stainless steel and nitinol and biodegradable materials, which can provide stable and lasting support for the valve, ensure the normal opening and closing function of the valve during the heart beating process, and maintain the blood circulation of the heart. Nitinol can return to the pre-set shape at a specific temperature. Using this property, the stent is compressed to a smaller size for easy delivery to the diseased site through a catheter. After reaching the designated position, the stent returns to its original shape in the body temperature environment, achieving precise positioning and effective support. The biodegradable material gradually degrades and is absorbed by the human body in the body, avoiding potential risks that may be brought by traditional stents staying in the body permanently, such as long-term inflammatory reactions and thrombosis. The polyetheretherketone coating can improve the biocompatibility of the stainless steel stent, reduce the adsorption of proteins and platelets in the blood, and reduce the risk of thrombosis. At the same time, the good chemical stability of the polyetheretherketone coating can prevent the corrosion of stainless steel in the body environment and extend the service life of the stent;

[0043] There are five groups of inner support plates 1 arranged in a circumferential array, and each two adjacent inner support plates 1 are connected by an inner lower support 7 and an inner upper support 6;

[0044] At the bottom end of each connecting body 2, two gripping plates 3 are relatively fixedly connected;

[0045] When the valve stent is implanted into the heart, the gripping plates 3 grip the surrounding heart tissue that has been punctured to prevent the stent from shifting and ensure its stability in the body. Especially under the blood flow impact caused by the heartbeat, it can still maintain a good fixed state;

[0046] On the side of each gripping plate 3, two through holes 4 are relatively formed;

[0047] After the valve stent is implanted into the heart, the blood flow caused by the heartbeat flows through the through holes 4, reducing the blood impact on the valve stent. At the same time, the through holes 4 can change the path and direction of the blood flow. When the blood flow passes through the through holes 4, the force originally concentrated on impacting the stent is dispersed. And when the heart beats, the blood flow impact will form a pressure concentration point at some parts of the stent, which is likely to cause damage to the stent after long-term action. The through holes 4 can guide the blood flow to be evenly distributed on the surface of the stent, avoiding excessive local pressure and effectively improving the service life of the valve stent;

[0048] The connecting component 8 is composed of two mutually sleeved components;

[0049] A micro monitoring component 11 is also arranged inside the inner support plate 1;

[0050] The micro monitoring component 11 includes a micro sensor component and a micro wireless communication module. The micro sensor component includes a micro pressure sensor and a micro tachometer, and the speed and pressure data of the valve stent are monitored through the micro pressure sensor and the micro tachometer;

[0051] The specific working steps of the micro monitoring component 11 are as follows:

[0052] S1. Obtain the data of the micro pressure sensor and the micro tachometer respectively, and mark them as pressure data Ys and speed data Ss;

[0053] S2. Calculate the pressure change value Ybh and the speed change value Sbh according to the pressure data Ys and the speed data Ss. The calculation formula for the pressure change value Ybh is:

[0054]

[0055] In the calculation formula, SYbh represents the current pressure data value, PYbh represents the historical average pressure data value, SYbh - PYbh represents the difference between the current pressure data value and the historical average pressure data value, and Byc represents the standard deviation between the current pressure data value and the historical average pressure data value;

[0056] The calculation formula for the speed change value Sbh is:

[0057]

[0058] In the calculation formula, SSbh represents the current speed data value, PSbh represents the historical average speed data value, SSbh - PSbh represents the difference between the current speed data value and the historical average speed data value, and Bsc represents the standard deviation between the current speed data value and the historical average speed data value;

[0059] S3. Determine whether the valve stent is abnormal according to the pressure change value Ybh and the speed change value Sbh;

[0060] When the pressure change value Ybh is greater than the pressure change standard value, it represents that the valve stent is abnormal; when the speed change value Sbh is greater than the speed change standard value, it also represents that the valve stent is abnormal. In any of the above two situations, an abnormal signal needs to be sent to the micro wireless communication module;

[0061] S4. Send an abnormal signal to the micro wireless communication module;

[0062] S5. The micro wireless communication module sends the abnormal signal to the guardian.

[0063] By monitoring the pressure exerted on the implanted valve stent through a micro pressure sensor and monitoring the moving speed of the implanted valve stent through a micro tachometer, and sending an abnormal signal to the guardian through the micro wireless communication module in case of an abnormality, the abnormal signal of the valve stent can be identified in a timely manner, and problems such as abnormal valve function, vascular stenosis or thrombosis can be accurately captured, which is convenient for timely notifying the guardian to take the patient to see a doctor, and the doctor can intervene before the condition deteriorates, greatly reducing the risk of the patient developing serious complications or even endangering life.

[0064] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve stent with good stability, characterized in that: It includes an inner support plate (1), the bottom end of the inner support plate (1) is fixedly connected with a connecting body (2), the bottom end of the connecting body (2) is fixedly connected with a grasping plate (3), through holes (4) are formed in the side of the grasping plate (3), and grasping feet (5) are fixedly installed at the bottom end. The top end of the inner support plate (1) is fixedly connected with an inner upper support (6), and the middle side is fixedly connected with an inner lower support (7). A connecting component (8) is fixedly installed on the side of the inner support plate (1), an outer support plate (9) is fixedly connected to the side of the connecting component (8), and an outer support (10) is fixedly connected to the top end of the outer support plate (9).

2. The valve stent with good stability according to claim 1, characterized in that: There are five groups of the inner support plates (1) arranged in a circumferential array, and each two adjacent inner support plates (1) are connected through the inner lower support (7) and the inner upper support (6).

3. The valve stent with good stability according to claim 2, characterized in that: Two grasping plates (3) are relatively fixedly connected to the bottom end of each connecting body (2).

4. The valve stent with good stability according to claim 3, characterized in that: Two through holes (4) are relatively formed in the side of each grasping plate (3).

5. The valve stent with good stability according to claim 4, characterized in that: The connecting component (8) is composed of two mutually sleeved components.

6. The valve stent with good stability according to claim 5, characterized in that: A micro monitoring component (11) is further arranged inside the inner support plate (1).

7. The valve stent with good stability according to claim 6, characterized in that: The micro monitoring component (11) includes a micro sensor component and a micro wireless communication module. The micro sensor component includes a micro pressure sensor and a micro speedometer, and the speed and pressure data of the valve stent are monitored through the micro pressure sensor and the micro speedometer.

8. The valve stent with good stability according to claim 7, characterized in that: The specific working steps of the micro monitoring component are as follows: S1. Obtain the data of the micro pressure sensor and the micro speedometer respectively, and mark them as pressure data Ys and speed data Ss; S2. Calculate the pressure change value Ybh and the speed change value Sbh according to the pressure data Ys and the speed data Ss. The calculation formula of the pressure change value Ybh is: In the calculation formula, SYbh represents the current pressure data value, PYbh represents the historical average pressure data value, SYbh - PYbh represents the difference between the current pressure data value and the historical average pressure data value, and Byc represents the standard difference between the current pressure data value and the historical average pressure data value; The calculation formula of the speed change value Sbh is: In the calculation formula, SSbh represents the current speed data value, PSbh represents the historical average speed data value, SSbh - PSbh represents the difference between the current speed data value and the historical average speed data value, and Bsc represents the standard difference between the current speed data value and the historical average speed data value; S3. Judge whether the valve stent is abnormal according to the pressure change value Ybh and the speed change value Sbh; S4. Send an abnormal signal to the micro wireless communication module; S5. The micro wireless communication module sends the abnormal signal to the guardian.

9. The valve stent with good stability according to claim 8, characterized in that: The determination method for judging whether the valve stent is loose in step S3 according to the pressure change value Ybh and the speed change value Sbh is: When the pressure change value Ybh is greater than the pressure change standard value, it means that the valve stent is abnormal; When the speed change value Sbh is greater than the speed change standard value, it also indicates that the valve stent is abnormal. In either of the above two cases, an abnormal signal needs to be sent to the micro wireless communication module.

10. A valve stent with good stability according to claim 9, characterized in that: A polyetheretherketone coating is constructed on the surface of the valve stent, and the valve stent is made of metal materials such as stainless steel and nitinol, as well as biodegradable materials.

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