An electromagnetic heart beat assist device

Abstract

The present invention relates to the field of medical device technology, specifically an electromagnetic heart beat assist device, an electromagnetic heart beat assist device, comprising: an endocardium, an exocardium support body, two permanent magnets and an electromagnet, a power supply and a controller, the endocardium covers the surface of the heart, the exocardium support body covers the outside of the endocardium, two permanent magnets are fixed on the outside of the endocardium and correspond to the left ventricle and the right ventricle respectively, two electromagnets are fixed on the inside of the exocardium support body and arranged opposite to the permanent magnets, and the power supply and controller are used to supply power to the electromagnets and adjust the magnitude and direction of the current, so that the electromagnets can exert repulsive or attractive forces on the permanent magnets, thereby driving the heart to contract or relax. The advantages of this patent are that it can assist the human heart to beat, has strong controllability, improves heart failure symptoms, prolongs the life of patients, and has a simple structure, a small size, only requires surgical implantation, is easy to replace, has low manufacturing and use costs, has a long service life, and is easily accepted by doctors and patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an electromagnetic heart beat assist device. Background Art

[0002] Heart failure, also known as HF, refers to the inability to fully discharge venous blood from the heart due to the systolic and / or diastolic function of the heart, which leads to blood congestion in the venous system and insufficient blood perfusion in the arterial system, thus causing a syndrome of cardiac circulatory disorders. This syndrome is mainly manifested as pulmonary congestion and vena cava congestion. Heart failure is not an independent disease, but the terminal stage of heart disease. The vast majority of heart failures start with left heart failure, which first manifests as pulmonary circulation congestion. The two-year survival rate of heart failure drug treatment is about 80%, and the five-year survival rate is only about 50%. Breakthroughs must be sought in the treatment of heart failure to save a large number of people who are dying.

[0003] At present, intra-aortic balloon counterpulsation is effective for low cardiac output heart failure, especially those with cardiogenic shock. However, the equipment is bulky and cannot be carried, making it unsuitable and inconvenient for long-term use. Foreign artificial heart research is mostly focused on mimicking the structure of the heart, and it is necessary to replace and remove the patient's heart. Due to insufficient energy supply, although there are artificial hearts in clinical application, the risk of death is high and the life span is very short. Finally, due to the short service life and many complications, it is not accepted by patients and difficult to promote. Heart transplantation is often difficult to implement widely due to the lack of donors, large surgical trauma, high cost, and high immune rejection reaction. Summary of the invention

[0004] In order to overcome the defects existing in the prior art, the task of the present invention is to provide an electromagnetic heart beat assist device, which can actively promote the contraction or relaxation of the human heart, assist the human heart to beat, and has strong controllability, so that the human heart can restore its normal blood pumping function, can improve the symptoms of heart failure, and prolong the patient's life. It has very important application value, and has a simple structure and a small size. It does not require the removal of the heart, but only requires surgical implantation. It is easy to replace, has a low cost of use, a long service life, and is easily accepted by doctors and patients.

[0005] The task of the present invention is achieved through the following technical solutions:

[0006] An electromagnetic heart beat assist device, comprising:

[0007] The inner membrane, when in use, covers and is fixedly connected to the surface of the human heart;

[0008] The outer membrane support body is covered on the outside of the inner membrane when in use, with a gap between the inner membrane and the outer membrane support body, and the edge of the outer membrane support body is fixedly connected to the surface of the human heart;

[0009] A permanent magnet, the permanent magnet is fixedly connected to the outside of the inner membrane, the number of the permanent magnets is at least two, at least one permanent magnet is located on the outside of the left ventricle of the human heart, and at least one permanent magnet is located on the outside of the right ventricle of the human heart;

[0010] The electromagnet is fixedly connected to the inner side of the outer membrane support and can be supported and fixed by the outer membrane support. When in use, the electromagnet corresponds to the permanent magnet and is arranged relatively;

[0011] The power supply and controller are connected to the electromagnet through wires, and are used to supply power to the electromagnet and adjust the magnitude and direction of the current, so that the electromagnet can exert repulsive or attractive force on the corresponding permanent magnet, thereby driving the human heart to contract or relax.

[0012] As a preferred technical solution, the electromagnetic heart beat assist device also includes a sensor, which is connected to the controller. The sensor can monitor the human heart beat rhythm in real time and send data to the controller, so that the controller controls the electromagnet to apply repulsive force to the permanent magnet to promote the contraction of the human heart when the human heart contracts, and controls the electromagnet to apply attractive force to the permanent magnet to promote the diastole of the heart when the heart relaxes.

[0013] As a preferred technical solution, the controller is preset with the normal beating rhythm of the human heart. When the sensor detects that the human heart has stopped beating, the controller can control the electromagnet to apply repulsive or attractive force to the permanent magnet to drive the heart to contract or relax according to the preset normal beating rhythm of the human heart.

[0014] As a preferred technical solution, the inner membrane and / or the outer membrane support body is a pocket-shaped structure that can be put on the surface of the human heart.

[0015] As a preferred technical solution, the inner membrane is a soft elastic film, and the hardness of the outer membrane support is greater than that of the inner membrane.

[0016] As a preferred technical solution, the permanent magnet is an arc surface structure so as to fit on the surface of the human heart through the inner membrane, and the electromagnet is an arc surface structure matching the corresponding permanent magnet, and each electromagnet is composed of one or more electromagnetic coils.

[0017] As a preferred technical solution, when in use, the inner membrane covers and is sutured and fixed to the visceral surface of the pericardium of the human heart, and the outer membrane support body is covered outside the inner membrane and the edge of the outer membrane support body is sutured and fixed to the parietal surface of the pericardium of the human heart.

[0018] Compared with the prior art, the electromagnetic heart beat assist device of the present invention uses the inner membrane to fix at least two permanent magnets on the outside of the left ventricle and the right ventricle of the human heart respectively, and uses the outer membrane support to fix at least two electromagnets at the relative positions of the corresponding permanent magnets respectively. By supplying power to the electromagnets and adjusting the current magnitude and direction, the electromagnets can exert repulsive or attractive forces on the corresponding permanent magnets, thereby actively promoting the human heart to contract or relax, that is, assisting the human heart to beat, and having strong controllability, so that the human heart can restore normal blood pumping function, improve heart failure symptoms, and prolong the life of patients, and has very important application value, and has a simple structure, a small size, and does not require removal of the heart, but only requires surgical implantation, is easy to replace, has low manufacturing and use costs, has a long service life, and is easily accepted by doctors and patients. By setting a sensor, the sensor can be used to detect the user's heart beat rhythm in real time, and then automatically control the present invention to assist the human heart to beat and keep it synchronized with the user's own heart beat rhythm. By presetting the normal beating rhythm of the human heart in the controller, when the user's heart stops beating, the controller can drive the heart to contract and relax according to the normal beating rhythm of the human heart, maintain normal blood pumping function, and prevent danger. The inner membrane and outer membrane support body are set to a pocket-shaped structure that can be put on the surface of the human heart, so that it is convenient to put it on the outer surface of the heart from bottom to top, and the permanent magnet is just located on the outside of the left and right ventricles of the human heart, and the electromagnet is just opposite to the corresponding permanent magnet position. The inner membrane is set to be a soft elastic film, so that it is convenient to cling to the surface of the heart, and the hardness of the outer membrane support body is set to be greater than the hardness of the inner membrane, so that it is convenient to support and fix the electromagnet to prevent shaking. The permanent magnet and the electromagnet are set to be a mutually coordinated arc surface result, which is convenient to match the contour of the human heart, and it is convenient to increase the force area while reducing the thickness of the permanent magnet and the electromagnet.

[0019] The concept, specific structure and effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the electromagnetic heart beat assist device of the present invention;

[0021] Figure 2 It is a schematic diagram of the electromagnetic heart beat assist device of the present invention in use. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below by taking an intelligent medical device using an electromagnetic heart beat assist device of the present invention as an example and combining with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0023] It should be noted that when an element is referred to as being “connected to” another element, it may be directly connected to the other element or may be indirectly connected via an intervening element.

[0024] like Figure 1-2 As shown, an electromagnetic heart beat assist device comprises:

[0025] The inner membrane 11 is used to cover and be fixedly connected to the surface of the human heart 2;

[0026] The outer membrane support body 12 is covered on the outside of the inner membrane 11 and has a gap with the inner membrane 11 when in use, and the edge of the outer membrane support body 12 is fixedly connected to the surface of the human heart 2;

[0027] A permanent magnet 13, the permanent magnet 13 is fixedly connected to the outside of the inner membrane 11, and the number of the permanent magnets 13 is two, one of which is located on the outside of the left ventricle 21 of the human heart 2, and the other permanent magnet 13 is located on the outside of the right ventricle 22 of the human heart 2;

[0028] The electromagnet 14 is fixedly connected to the inner side of the outer membrane support 12 and can be supported and fixed by the outer membrane support 12. When in use, the electromagnet 14 corresponds to the permanent magnet 13 one by one and is arranged relatively;

[0029] The battery and controller 15 are connected to the electromagnet 14 through the wire 16, and are used to supply power to the electromagnet 14 and adjust the magnitude and direction of the current, so that the electromagnet 14 can exert a repulsive force or an attractive force on the corresponding permanent magnet 13, thereby driving the human heart 2 to contract or relax.

[0030] The present invention discloses an electromagnetic heart beat assist device. An inner membrane 11 is used to fix two permanent magnets 13 on the outside of a left ventricle 21 and a right ventricle 22 of a human heart 2. An outer membrane support 12 is used to fix two electromagnets 14 on the relative positions of the corresponding permanent magnets 13. By supplying power to the electromagnets 14 and adjusting the magnitude and direction of the current, the electromagnets 14 can exert repulsive or attractive forces on the corresponding permanent magnets 13, thereby actively promoting the contraction or relaxation of the human heart 2, that is, assisting the human heart 2 to beat. The device has strong controllability, restores the normal blood pumping function of the human heart 2, improves the symptoms of heart failure, and prolongs the life of the patient. The device has very important application value, has a simple structure, and is compact. It does not require removal of the heart 2, but only requires surgical implantation. The device is easy to replace, has a low manufacturing and use cost, and has a long service life. It is easily accepted by doctors and patients.

[0031] As a preferred embodiment, the electromagnetic heart beat assist device further includes a sensor (not shown in the figure), which is connected to the controller. The sensor can monitor the beat rhythm of the human heart 2 in real time and send the data to the controller, so that the controller controls the electromagnet 14 to apply a repulsive force to the permanent magnet 13 to promote the contraction of the human heart 2 when the human heart 2 contracts, and controls the electromagnet 14 to apply an attractive force to the permanent magnet 13 to promote the relaxation of the heart 2 when the heart 2 relaxes. By setting the sensor, the sensor can be used to detect the beat rhythm of the user's heart 2 in real time, and then automatically control the present invention to assist the human heart 2 to beat and keep it synchronized with the beat rhythm of the user's own heart 2.

[0032] As a preferred embodiment, the controller is preset with the normal beating rhythm of the human heart 2. When the sensor detects that the human heart 2 stops beating, the controller can control the electromagnet 14 to apply repulsive force or attractive force to the permanent magnet 13 according to the preset normal beating rhythm of the human heart 2 to drive the heart 2 to contract or relax. By presetting the normal beating rhythm of the human heart 2 in the controller, when the user's heart 2 stops beating, the controller can drive the heart 2 to contract or relax according to the normal beating rhythm of the human heart 2, maintain normal blood pumping function, and prevent danger.

[0033] As a preferred embodiment, the inner membrane 11 and the outer membrane support body 12 are pocket-shaped structures that can be put on the surface of the human heart 2. By setting the inner membrane 11 and the outer membrane support body 12 as pocket-shaped structures that can be put on the surface of the human heart 2, it is convenient to put on the outer surface of the heart 2 from bottom to top, and the permanent magnet 13 is exactly located outside the left and right ventricles of the human heart 2, and the electromagnet 14 is exactly opposite to the corresponding permanent magnet 13.

[0034] As a preferred embodiment, the inner membrane 11 is a soft elastic film, and the hardness of the outer membrane support body 12 is greater than the hardness of the inner membrane 11. By setting the inner membrane 11 as a soft elastic film, it is convenient to closely adhere to the surface of the heart 2, and setting the hardness of the outer membrane support body 12 to be greater than the hardness of the inner membrane 11, it is convenient to support and fix the electromagnet 14 to prevent shaking.

[0035] As a preferred embodiment, the permanent magnet 13 is a curved surface structure so as to be attached to the surface of the human heart 2 through the inner membrane 11, and the electromagnet 14 is a curved surface structure matched with the corresponding permanent magnet 13, and each electromagnet 14 is composed of one or more electromagnetic coils. By setting the permanent magnet 13 and the electromagnet 14 as a curved surface result that matches each other, it is convenient to match the contour of the human heart 2, and it is convenient to increase the force-bearing area while reducing the thickness of the permanent magnet 13 and the electromagnet 14.

[0036] The human heart surface can be understood as the pericardium parietal layer, the pericardium visceral layer or other structures located on the heart surface. As a preferred embodiment, when in use, the inner membrane 11 covers and is sutured and fixed on the pericardium visceral layer surface of the human heart 2, and the outer membrane support body 12 is covered outside the inner membrane 11 and the edge of the outer membrane support body 12 is sutured and fixed to the pericardium parietal layer surface of the human heart 2.

[0037] The electromagnetic heart beat assist device of the present invention can be implanted and installed through surgical operation, specifically: cut the pericardium of the user's heart 2, implant the endocardium 11 into the pericardial cavity and sew the endocardium 11 and the surface of the pericardial visceral layer 23, then implant the outer membrane support body 12 into the pericardial cavity and sew the edge of the outer membrane support body 12 and the pericardial wall layer 24 at the root of the heart 2, and make the electromagnet 14 and the permanent magnet 13 relative to each other. If the outer membrane support body 12 is made of non-deformable or difficult to deform material, it will occupy a certain volume and may require thoracotomy for implantation. If the outer membrane support body 12 is made of deformable material and is molded after entering the chest cavity, or is made of compressible and expandable material, or is made of memory material, it can also be considered to be implanted by minimally invasive surgery. The battery and controller 15 can be placed at the bottom of the left chest cavity, or the wire 16 can pass through the left intercostal muscle, and the battery and controller 15 can be placed subcutaneously on the left chest or externally.

[0038] The above description is only a preferred embodiment of the present application 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 application 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 this application (but not limited to) by each other.

Claims

1. An electromagnetic heart beat assist device, characterized in that: include: The inner membrane, when in use, covers and is fixedly connected to the surface of the human heart; The outer membrane support body, when in use, covers the outer side of the inner membrane and has a gap between the inner membrane, the edge of the outer membrane support body is fixedly connected to the surface of the human heart, when in use, the inner membrane covers and is sutured and fixed to the surface of the visceral layer of the pericardium of the human heart, the outer membrane support body covers the outer side of the inner membrane and the edge of the outer membrane support body is sutured and fixed to the surface of the parietal layer of the pericardium of the human heart; A permanent magnet, the permanent magnet is fixedly connected to the outside of the inner membrane, the number of the permanent magnets is at least two, at least one permanent magnet is located on the outside of the left ventricle of the human heart, and at least one permanent magnet is located on the outside of the right ventricle of the human heart; The electromagnet is fixedly connected to the inner side of the outer membrane support body and can be supported and fixed by the outer membrane support body. When in use, the electromagnet corresponds to the permanent magnet one by one and is arranged relatively. The permanent magnet is a curved surface structure so that it can be attached to the surface of the human heart through the inner membrane. The electromagnet is a curved surface structure that matches the corresponding permanent magnet. The power supply and controller are connected to the electromagnet through wires, and are used to supply power to the electromagnet and adjust the magnitude and direction of the current, so that the electromagnet can exert repulsive or attractive force on the corresponding permanent magnet, thereby driving the human heart to contract or relax; the power supply is a battery, and the battery and controller are placed at the bottom of the left chest cavity, or the battery and controller are placed subcutaneously on the left chest or externally outside the body and are connected to the electromagnet through wires passing through the left intercostal muscles.

2. The electromagnetic heart beat assist device according to claim 1, characterized in that: The electromagnetic heart beat assist device also includes a sensor, which is connected to a controller. The sensor can monitor the human heart beat rhythm in real time and send data to the controller, so that the controller controls the electromagnet to apply a repulsive force to the permanent magnet to promote the contraction of the human heart when the human heart contracts, and controls the electromagnet to apply an attractive force to the permanent magnet to promote the diastole of the heart when the heart relaxes.

3. The electromagnetic heart beat assist device according to claim 2, characterized in that: The controller is preset with the normal beating rhythm of the human heart. When the sensor detects that the human heart stops beating, the controller can control the electromagnet to apply repulsive or attractive force to the permanent magnet to drive the heart to contract or relax according to the preset normal beating rhythm of the human heart.

4. The electromagnetic heart beat assist device according to claim 1, characterized in that: The inner membrane and / or the outer membrane support body is a pocket-shaped structure that can be put on the surface of the human heart.

5. The electromagnetic heart beat assist device according to claim 1, characterized in that: The inner membrane is a soft elastic film, and the hardness of the outer membrane support is greater than that of the inner membrane.

6. The electromagnetic heart beat assist device according to claim 1, characterized in that: Each electromagnet is composed of one or more electromagnetic coils.

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