Cardiac atrial stent with defibrillation function

Abstract

The application provides an atrial stent with a defibrillation function, and relates to the technical field of medical devices.The stent comprises a ball cage and a defibrillation catheter; the ball cage is installed in an atrium; one end of the defibrillation catheter is arranged around the ball cage, and the other end is connected with a defibrillation power supply; and a plurality of electrodes are arranged at intervals on the defibrillation catheter around the ball cage.In the embodiment of the application, when a patient has atrial fibrillation, the defibrillation catheter is electrified, the atrial nerves of the patient are ablated through the electrodes, the patient can be defibrillated in time and effectively, and the life safety of the patient is ensured.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an atrial stent with defibrillation function. Background Technology

[0002] The heart is divided into left and right ventricular septa, each containing a ventricle and an atrium. The ventricles are separated by the interventricular septum, and the atria are separated by the interatrial septum. Valves prevent backflow of blood between the atria, ventricles, and arteries. Specifically, the valve between the left atrium and left ventricle is the mitral valve; the valve between the right atrium and right ventricle is the tricuspid valve; the valve between the left ventricle and the great artery is the aortic valve; and the valve between the right ventricle and the pulmonary artery is the pulmonary valve.

[0003] If a valve cannot close completely or opens insufficiently due to disease or other reasons, it will lead to blood reflux and insufficient blood supply. For example, valvular stenosis causing poor blood flow or incomplete closure will result in insufficient blood supply to the heart, greatly increasing the burden on the heart and leading to heart failure. Traditional treatment for this type of valvular heart disease involves open-chest surgery, cardiac arrest, and, under hypothermic circulatory support, surgical repair of the valve or replacement with an artificial valve. After the surgery, the heart is restarted to complete subsequent procedures. The surgical trauma, risks, and long-term, expensive postoperative rehabilitation of valve replacement make many patients unwilling to undergo surgery.

[0004] With the continuous development of minimally invasive surgical techniques, artificial valves can be introduced into the patient's body through a catheter, that is, the heart valve is placed through minimally invasive interventional surgery. The surgery does not require opening the chest, so it is less traumatic and the postoperative recovery is faster. It provides a new solution for patients with valvular stenosis whose lives cannot be prolonged or whose pain cannot be relieved by conventional treatments.

[0005] Patients who have undergone heart valve intervention surgery are more prone to atrial fibrillation. However, current artificial valves do not have defibrillation capabilities, and failure to defibrillate atrial fibrillation in a timely manner can endanger the patient's life. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides an atrial stent with defibrillation function, solving the problem that artificial valves do not have defibrillation function.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] An atrial stent with defibrillation function, the stent comprising: a ball cage and a defibrillation catheter;

[0011] The ball cage is installed inside the atrium;

[0012] One end of the defibrillation catheter is wound around the ball cage, and the other end is connected to the defibrillation power supply; the defibrillation catheter wound around the ball cage is provided with several electrodes at intervals.

[0013] Preferably, the defibrillator is located outside the patient's body, and the defibrillator catheter extends through the atrial wall to the outside of the patient's body and is connected to the defibrillator.

[0014] Preferably, the defibrillation catheter includes: a winding catheter and an exit catheter; the winding catheter is wound around a ball cage; one end of the exit catheter is electrically connected to the winding catheter, and the other end is electrically connected to the defibrillation power supply.

[0015] The connecting end of the winding conduit is provided with a limiting ball;

[0016] The lead-out conduit includes an outer tube and a wire; the wire is connected to a limiting ball, and the outer tube is sleeved outside the wire.

[0017] Preferably, the ball cage includes: an upper ball cage, a lower ball cage, and an elastic element; the upper ball cage and the lower ball cage are connected by the elastic element.

[0018] Preferably, the bottom end of the lower ball cage has an opening, and a cylindrical support extends into the ball cage from the opening.

[0019] Preferably, the lower ball cage and the cylindrical support are provided with a sealing membrane, so that the atrium and ventricle are connected only through the cylindrical support.

[0020] Preferably, an artificial valve is disposed inside the cylindrical stent.

[0021] Preferably, the upper ball cage is provided with a sealing membrane.

[0022] Preferably, the bottom of the lower ball cage is provided with elastic barbs, which are arranged in a circumferential array around the lower ball cage and are driven into the inner wall of the atrium.

[0023] Preferably, the bottom of the lower ball cage is provided with a hook, which opens and hooks the original valve, causing the original valve to lose its function.

[0024] (III) Beneficial Effects

[0025] This invention provides an atrial stent with defibrillation function. Compared with the prior art, it has the following advantages:

[0026] In this invention, a ball cage is installed inside the atrium, one end of a defibrillation catheter is wound around the ball cage, and the other end is connected to a defibrillation power source; the defibrillation catheter wound around the ball cage is provided with several electrodes at intervals; when the patient has atrial fibrillation, the defibrillation catheter is energized, and the atrial nerves of the patient are ablated through the electrodes, which can defibrillate in a timely and effective manner and ensure the patient's life safety. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a top axonometric view of the central room support structure in Embodiment 1 of the present invention;

[0029] Figure 2 This is a bottom-view axonometric drawing of the central room support structure in Embodiment 1 of the present invention;

[0030] Figure 3 This is an isometric view of the central room support structure in Embodiment 2 of the present invention;

[0031] Figure 4 This is an isometric view of the central room support structure in Embodiment 3 of the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This application provides an atrial stent with defibrillation function, which solves the problem that artificial valves do not have defibrillation function.

[0034] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0035] In this embodiment of the invention, a ball cage is installed inside the atrium. One end of the defibrillation catheter is wound around the ball cage according to the atrial fibrillation maze procedure, and the other end is connected to the defibrillation power supply. Several electrodes are arranged at intervals on the defibrillation catheter wound around the ball cage. When the patient has atrial fibrillation, the defibrillation catheter is energized, and the atrial nerves of the patient are ablated through the electrodes, which can defibrillate in a timely and effective manner and ensure the patient's life safety.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] Example 1:

[0038] like Figure 1 , Figure 2 As shown, the present invention provides an atrial stent with defibrillation function, the stent comprising: a ball cage 10 and a defibrillation catheter 20;

[0039] The ball cage 10 is installed inside the atrium;

[0040] One end of the defibrillation catheter 20 is wound around the ball cage 10 according to the atrial fibrillation maze procedure, and the other end is connected to the defibrillation power supply; the defibrillation catheter 20 wound around the ball cage 10 is provided with several electrodes at intervals.

[0041] When a patient has atrial fibrillation, the defibrillation catheter 20 is energized, and the atrial nerves are ablated through electrodes, which can defibrillate the patient in a timely and effective manner and ensure the patient's life safety.

[0042] The defibrillator is located outside the patient's body, and the defibrillator catheter 20 extends through the atrial wall to the outside of the patient's body and is connected to the defibrillator.

[0043] like Figure 1 , Figure 2 As shown, the ball cage 10 includes an upper ball cage 11, a lower ball cage 12, and an elastic element 13; the upper ball cage 11 and the lower ball cage 12 are connected by the elastic element 13. This allows the ball cage 10 to extend and retract vertically, improving its fit with the atrium and connection stability.

[0044] like Figure 1 , Figure 2 As shown, the bottom end of the lower ball cage 12 has an opening 14, and a cylindrical support 15 extends from the opening 14 into the ball cage 10.

[0045] like Figure 1 , Figure 2 As shown, the lower ball cage 12 and the cylindrical support 15 are provided with a sealing membrane 16, so that the atrium and ventricle are connected only through the cylindrical support 15.

[0046] like Figure 1 , Figure 2 As shown, an artificial valve 30 is disposed inside the tubular stent 15.

[0047] like Figure 1 , Figure 2 As shown, the bottom of the lower ball cage 12 is provided with elastic barbs 17, which are arranged in a circumferential array around the lower ball cage 12. The elastic barbs 17 are driven into the inner wall of the atrium, further improving the connection stability between the ball cage 10 and the atrium.

[0048] like Figure 1 , Figure 2 As shown, the bottom of the lower ball cage 12 is provided with a hook 18, which opens and hooks the original valve, causing the original valve to lose its function and preventing insufficient blood supply caused by insufficient opening of the original valve.

[0049] Example 2:

[0050] like Figure 3 As shown, the defibrillation catheter 20 includes: a winding catheter 21 and an exit catheter 22; the winding catheter 21 is wound around the ball cage 10; one end of the exit catheter 22 is electrically connected to the winding catheter 21, and the other end is electrically connected to the defibrillation power supply.

[0051] A limiting ball 23 is provided at the connecting end of the winding conduit 21;

[0052] The lead-out conduit 22 includes an outer tube 24 and a wire 25; the wire 25 is sleeved with a limiting ball 23, and the outer tube 24 is sleeved outside the wire 25.

[0053] After atrial fibrillation ablation is completed, the connection between the bypass catheter 21 and the exit catheter 22 can be released, and the exit catheter 22 can be removed from the body, while the ball cage 10 and the bypass catheter 21 remain in the body.

[0054] Example 3:

[0055] like Figure 4 As shown, the upper ball cage 11 is provided with a sealing membrane 16, which is used to block the atrial appendage and prevent the formation of atrial appendage thrombus during atrial fibrillation.

[0056] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0057] In this embodiment of the invention, a ball cage is installed inside the atrium. One end of the defibrillation catheter is wound around the ball cage according to the atrial fibrillation maze procedure, and the other end is connected to the defibrillation power supply. Several electrodes are arranged at intervals on the defibrillation catheter wound around the ball cage. When the patient has atrial fibrillation, the defibrillation catheter is energized, and the atrial nerves of the patient are ablated through the electrodes, which can defibrillate in a timely and effective manner and ensure the patient's life safety.

[0058] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An atrial stent with defibrillation function, characterized in that, The stent includes: a ball cage (10) and a defibrillation catheter (20); The ball cage (10) is installed inside the atrium; One end of the defibrillation catheter (20) is wound around the ball cage (10) according to the atrial fibrillation maze procedure, and the other end is connected to the defibrillation power supply; the defibrillation catheter (20) wound around the ball cage (10) is provided with several electrodes at intervals; The defibrillator is located outside the patient's body, and the defibrillator catheter (20) extends through the atrial wall to the outside of the patient's body and is connected to the defibrillator. The defibrillation catheter (20) includes: a winding catheter (21) and an exit catheter (22); the winding catheter (21) is wound around the ball cage (10); one end of the exit catheter (22) is electrically connected to the winding catheter (21), and the other end is electrically connected to the defibrillation power supply; The connecting end of the winding conduit (21) is provided with a limiting ball (23); The lead-out conduit (22) includes an outer tube (24) and a wire (25); the wire (25) is connected to the limiting ball (23), and the outer tube (24) is sleeved outside the wire (25).

2. The atrial stent with defibrillation function as described in claim 1, characterized in that, The ball cage (10) includes an upper ball cage (11), a lower ball cage (12), and an elastic element (13); the upper ball cage (11) and the lower ball cage (12) are connected by the elastic element (13).

3. The atrial stent with defibrillation function as described in claim 2, characterized in that, The lower ball cage (12) has an opening (14) at its bottom end, and a cylindrical support (15) extends from the opening (14) into the ball cage (10).

4. The atrial stent with defibrillation function as described in claim 3, characterized in that, The lower ball cage (12) and the cylindrical support (15) are provided with a sealing membrane (16) so that the atrium and ventricle are connected only through the cylindrical support (15).

5. The atrial stent with defibrillation function as described in claim 4, characterized in that, An artificial valve (30) is disposed inside the tubular stent (15).

6. The atrial stent with defibrillation function as described in claim 2, characterized in that, The upper ball cage (11) is provided with a sealing membrane (16).

7. The atrial stent with defibrillation function as described in any one of claims 2 to 6, characterized in that, The bottom of the lower ball cage (12) is provided with elastic barbs (17), which are arranged in a circumferential array around the lower ball cage (12) and are driven into the inner wall of the atrium.

8. The atrial stent with defibrillation function as described in any one of claims 2 to 6, characterized in that, The bottom of the lower ball cage (12) is provided with a hook (18), which opens and hooks the original valve, causing the original valve to lose its function.

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