Bionic heart system and method for implementing a bionic heart system
By designing a biomimetic heart system, a micro-motor drives a push-pull plate to achieve forward and reverse movement of the left and right ventricles, solving the problems of poor smoothness and durability of artificial hearts in existing technologies. This achieves a safe and long-lasting pumping function and an appearance similar to the human heart.
Patent Information
- Application Number
- CN202310056326.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-01-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2043-01-18
AI Technical Summary
Existing artificial heart devices have problems such as being too large, not smooth, and not durable when simulating the ventricular contraction and relaxation functions of the human heart. In particular, devices that squeeze blood during relaxation cannot operate for long periods of time and safely.
It adopts a bionic heart system, including a shell, push-pull plate, push-pull rod, diaphragm, valve and power system. The push-pull plate is driven by a micro motor to realize the forward and reverse operation of the left and right ventricles, simulating the pumping function of the human heart. It is equipped with dual motors and dual communication system to ensure safety and durability.
It achieves a blood pumping function and blood pressure difference similar to the human heart, improving the safety and durability of the device, reducing energy consumption, extending the service life of the diaphragm, and its shape and size are similar to the human heart, adapting to the blood supply needs of different patients.
Smart Images

Figure CN116077824B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and in particular to a bionic heart system and a method for implementing the bionic heart system. Background Technology
[0002] An artificial heart generally refers to a mechanical means that partially or completely replaces the pumping function of the human heart. The history of human research and utilization of artificial hearts began in the mid-20th century. While some progress has been made over the decades, it remains largely in the exploratory stage. With technological advancements, artificial mechanical pumping devices have made many breakthroughs, evolving from axial flow pumps to centrifugal pumps, achieving significant progress. However, these artificial hearts still have several critical problems, such as general malfunction, susceptibility to damage, lack of durability, high failure rates, and a high risk of blood damage, leading to coagulation and thrombosis. Therefore, existing artificial hearts generally suffer from low safety, especially fully artificial hearts that completely simulate the contraction and relaxation functions of the human ventricle, which are often too large, lack smooth operation, and are difficult to sustain. Against this backdrop, this invention aims to solve the problem of the inability of ventricular devices that squeeze blood through relaxation to operate smoothly and sustainably, enabling them to operate smoothly, sustainably, and safely for an extended period. Summary of the Invention
[0003] This application provides a bionic heart system to solve the problem that the internal structure of devices like ventricular devices that squeeze blood through the principle of diastole cannot operate continuously and smoothly.
[0004] In a first aspect, embodiments of this application provide a bionic heart system, including a shell, a push-pull plate, a push-pull rod, a left ventricular diaphragm, a right ventricular diaphragm, an artificial blood vessel, an ingress valve, an egress valve, and an external integrated module system for a power system;
[0005] The left and right ventricular diaphragms are fixedly installed on both sides inside the shell, that is, the left ventricular diaphragm and the left part of the shell together form the left ventricle, and the right ventricular diaphragm and the right part of the shell together form the right ventricle;
[0006] Multiple ports are provided on the top of both sides of the housing, and the ingress valve or the egress valve and the artificial blood vessel are installed at each port.
[0007] There are two push-pull plates, including a left ventricular push-pull plate and a right ventricular push-pull plate. The left ventricular push-pull plate and the right ventricular push-pull plate are both located inside the housing and are respectively fixed at both ends of the push-pull rod. The left ventricular push-pull plate is connected to the outer surface of the left ventricular diaphragm, and the right ventricular push-pull plate is connected to the outer surface of the right ventricular diaphragm.
[0008] Straight teeth are also provided on both sides of the push-pull rod, and the straight teeth mesh with the round semi-tooth of the power system.
[0009] The power system is located between the left ventricular push-pull plate and the right ventricular push-pull plate, and the power system includes a micro motor, a rotary linear motion structure, and gears;
[0010] The micro motor meshes with the spur gear through the gear; when the micro motor drives the rotating linear running structure to move in a straight line in both directions, it drives the left ventricular push-pull plate and the right ventricular push-pull plate to move in opposite directions.
[0011] When the left ventricular push-pull plate moves in the positive direction, it pushes the left ventricular diaphragm, reduces the volume of the left ventricle, and pumps out the blood from the left ventricle. Meanwhile, the right ventricular push-pull plate stretches the right ventricular diaphragm, expands the volume of the right ventricle, and the right ventricle draws in blood.
[0012] When the left ventricular push-pull plate moves in the opposite direction, it stretches the left ventricular diaphragm, expanding the volume of the left ventricle, allowing blood to be drawn into the left ventricle. Meanwhile, the right ventricular push-pull plate pushes the right ventricular diaphragm, reducing the volume of the right ventricle and pumping blood out of the right ventricle. This cycle repeats, generating the same pumping function, pulsation, and blood pressure difference as the human heart, achieving the same kinetic energy as the human heart.
[0013] Optionally, the power system further includes a one-way bearing, and the micro motor is a dual motor. The two one-way bearings are respectively mounted on the shafts of the two micro motors. When one micro motor rotates to perform work, the other micro motor will not rotate and will be in standby mode because the one-way bearing is installed in reverse. When the micro motor that is performing work fails or stops working, the other standby micro motor will rotate to perform work under the instruction of the intelligent system, thus ensuring the safe operation of this application.
[0014] Optionally, the rotary linear running structure includes round teeth, round half teeth, and straight teeth; the round teeth and the round half teeth are connected in series, and there are two sets, which are respectively arranged on the left and right sides of the straight teeth. The round half teeth and the straight teeth mesh left and right. When the micro motor rotates, it drives the one-way bearing, round teeth, and round half teeth to rotate. One set of round half teeth meshes with the left side of the straight teeth, and the other set of round half teeth meshes with the right side of the straight teeth, so that the straight teeth run in both directions.
[0015] Optionally, the artificial blood vessels have four ends, one end of which is sutured to the corresponding incisions in the left and right atria, the aorta, and the pulmonary aorta, respectively, and the other end is inserted into the corresponding openings at the top of the shell and fixed with buckles.
[0016] Optionally, the bionic heart system also includes a power supply system, wherein the connection between the internal and external parts of the power supply system is wireless. The internal power supply system includes a power receiving coil, a built-in rechargeable battery, and a circuit board that are electrically connected to each other. The power receiving coil can be implanted subcutaneously near the body surface to receive electrical energy at a closer distance.
[0017] Optionally, the bionic heart system further includes a communication system, which includes a communication module, a processor, and an early warning system. The communication system consists of two parts: an internal part and an external part, and the internal part and the external part of the communication system are wirelessly connected.
[0018] Optionally, the bionic heart system further includes an intelligent chip and sensor system, which includes sensors, chips, circuit boards, and software systems. The built-in intelligent chip will set the initial speed of the micro motor according to the user's gender, weight, and different blood supply needs. During use, the speed can still be adjusted by sensing the user's body temperature, exercise speed, etc., to increase or decrease the blood supply at any time, thus mimicking the blood supply mode of the human heart.
[0019] Optionally, the bionic heart system further includes an external integrated module system, which includes a power transmission coil, an external rechargeable battery, an external circuit board chip, a communication system, an early warning system, and a display.
[0020] Optionally, all surfaces of the left ventricle, right ventricle, artificial blood vessels, inlet and outlet valves, and other surfaces that come into contact with human blood must be coated with a human-compatible material.
[0021] Secondly, embodiments of this application provide a method for implementing a bionic heart system, which is applied to the bionic heart system described in the first aspect.
[0022] The beneficial effects of this application are:
[0023] 1. Enables vertical operation of the push-pull rod. Compared to existing technologies that use piston-connecting rods (oscillating), this will make the power system run more smoothly, require less effort, and consume less energy.
[0024] 2. The soft membrane is squeezed for blood pumping. This will result in less deformation of the soft membrane when squeezed, thus reducing resistance and preventing the soft membrane from bending and becoming easily damaged (existing soft membranes require complete bending for each pumping). This will greatly increase the service life of the soft membrane and improve the durability of this application.
[0025] 3. Subcutaneous implantation of the power receiving coil. This brings the coil inside the body closer to and more tightly fitted with the coil outside the body, resulting in safer, more stable, and more efficient energy reception.
[0026] 4. It achieves continuous internal airflow, heat dissipation, and left-right spatial balance. Although the volumes of the left and right ventricles change continuously, the total volume of the left and right ventricles remains constant. That is, when the volume of one ventricle increases, the volume of the other ventricle must decrease. At the same time, due to the continuous flow of air from left to right, it also achieves uniform heat dissipation for all components.
[0027] 5. This application includes an adapter on the artificial blood vessel. The purpose of this adapter is to facilitate and expedite the replacement of the artificial mechanical heart, reduce surgical time, and more effectively ensure patient safety.
[0028] 6. Dual System Functionality. This application not only features two micro motors on the left and right sides, but also a dual circuit system and a dual communication system. This provides dual protection for both the components and critical parts, thereby enhancing its safety and durability.
[0029] 7. Initial speed and adjustment speed. The intelligent sensing chip of this application is designed with different initial speeds according to gender and weight, so that even if there is only one product specification, it can be suitable for all patients. At the same time, the sensor is set to adjust the speed according to the individual's needs, which is more in line with the human health needs.
[0030] 8. The product's dimensions are comparable to those of the human heart. The design concept and structural principles adopted in this application allow its external dimensions to be 110mm × 86mm × 85mm, which is similar to the size of a human heart. Furthermore, its operating mode also achieves a similar pulsation, blood pressure difference, and operating effect to the human heart. This is an extremely valuable and significant innovation. Attached Figure Description
[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is one of the structural schematic diagrams of the bionic heart system provided in the embodiments of this application;
[0033] Figure 2 This is the second schematic diagram of the bionic heart system provided in the embodiments of this application;
[0034] Figure 3This is a schematic diagram of the power system structure in the bionic heart system provided in the embodiments of this application;
[0035] Figure 4 This is a schematic diagram of the operation of the power system in the bionic heart system provided in the embodiments of this application;
[0036] Figure 5 This is a schematic diagram of the gear connection relationship in the power system;
[0037] Figure 6 This is one of the schematic diagrams showing the relationship between the power system and the push-pull rod;
[0038] Figure 7 This is the second schematic diagram showing the relationship between the power system and the push-pull rod;
[0039] Figure 8 This is a schematic diagram of the pia mater of the left and right ventricles;
[0040] Figure 9 This is one of the schematic diagrams showing the relationship between the diaphragm of the left and right ventricles, the push-pull plate, and the push-pull rod;
[0041] Figure 10 This is the second schematic diagram showing the relationship between the left and right ventricular diaphragms, the push-pull plate, and the push-pull rod.
[0042] Figure 11 This is a schematic diagram of the shell structure;
[0043] Figure 12 This is a top view of the bionic heart system provided in the embodiments of this application;
[0044] Figure 13 This is a schematic diagram of the power receiving coil;
[0045] Figure 14 This is a schematic diagram of the structure of the external integrated module system;
[0046] Figure 15 This is a schematic diagram of the structure of wearing a vest.
[0047] Explanation of reference numerals in the attached figures:
[0048] 1-A Left Ventricle
[0049] 1-B Right Ventricle
[0050] 2-A Left Ventricular Pia mater
[0051] 2-B Right Ventricular Pia mater
[0052] 3 left round half tooth
[0053] 4 straight teeth
[0054] 5 push-pull rods
[0055] 6-A Left Ventricular Shell
[0056] 6-B Right Ventricular Shell
[0057] 7 Right round half tooth
[0058] 8 Power System Support Frame
[0059] 9-A Left Ventricular Push-Pull Plate
[0060] 9-B Right Ventricular Push-Pull Plate
[0061] 10 built-in rechargeable battery
[0062] 11 Smart Circuit Board Chips
[0063] 12 sensors
[0064] 13 right micro motors
[0065] 14 left micro motors
[0066] 15. Right ventricular approach valve
[0067] 16. Right ventricular outflow valve
[0068] 17 common veins
[0069] 18 common pulmonary artery vessels
[0070] 19 common arteries
[0071] 20 pulmonary common vein vessels
[0072] 21. Left ventricular outflow valve
[0073] 22 Left ventricular approach valve
[0074] 23-A Left Ventricular diaphragm and shell annular interface
[0075] 23-B Right Ventricular diaphragm and shell annular interface
[0076] 24 Artificial blood vessels and tube fittings
[0077] 25. Connecting clips and sealing rings of the housing
[0078] 26-round tooth and left round half tooth tandem shaft
[0079] 27-tooth and right half-tooth tandem shaft
[0080] 28 left micro motor shaft
[0081] 29 Right micro motor shaft
[0082] 30 main drive gear tandem shaft
[0083] 31 Left drive gear
[0084] 32 Right drive gear
[0085] 33 Main drive gear
[0086] 34. Tandem gears of the main drive gears
[0087] 35 left one-way bearing
[0088] 36 Right-hand one-way bearing
[0089] 37 left micro motor transmission gear
[0090] 38 right micro motor transmission gear
[0091] 39 Receiving power coil
[0092] 40 power transmission coil
[0093] 41 Displays and Early Warning Systems
[0094] 42 external circuit board chips
[0095] 43 External rechargeable battery
[0096] 44 Wearing a vest
[0097] 45. Pocket zipper for external integrated module.
[0098] 46 external integrated modules are placed in a pocket
[0099] 47 Vest Zipper Detailed Implementation
[0100] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0101] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0102] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0103] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0104] In one embodiment, see Figures 1 to 15 This application provides a bionic heart system. The bionic heart system includes a shell (comprising a left ventricular shell 6-A and a right ventricular shell 6-B), push-pull plates (comprising a left ventricular push-pull plate 9-A and a right ventricular push-pull plate 9-B), push-pull rods 5, a left ventricular diaphragm 2-A, a right ventricular diaphragm 2-B, artificial blood vessels (comprising a common vein 17, a common pulmonary artery 18, a common artery 19, and a common pulmonary vein 20), ingress valves (comprising a right ventricular ingress valve 15 and a left ventricular outgress valve 21), outgress valves (comprising a right ventricular outgress valve 16 and a left ventricular ingress valve 22), and a power system.
[0105] The left and right ventricular diaphragms are fixedly installed on opposite sides of the housing. The left ventricular diaphragm 2-A forms the left ventricle 1-A between itself and the inner wall of the left ventricular housing 6-A, and similarly, the right ventricular diaphragm 2-B forms the right ventricle 1-B between itself and the inner wall of the right ventricular housing 6-B. The outer edge of the left ventricular diaphragm 2-A is connected to the annular interface 23-A of the housing. The outer edge of the right ventricular diaphragm 2-B is connected to the annular interface 23-B of the housing.
[0106] Multiple ports are provided on the top of both sides of the shell, and an inlet valve, an outlet valve, and an artificial blood vessel are installed at each port.
[0107] Please see further. Figure 1 , Figure 2 , Figure 11The top of the shell has four openings. The two openings on the left side of the diagram connect to the right ventricle 1-B, and the two openings on the right side connect to the left ventricle 1-A. Each opening is fitted with an artificial blood vessel. Figure 12 It can also be seen that the upper left port is equipped with a right ventricular inlet valve 15 and a common venous vessel 17; the lower left port is equipped with a right ventricular outlet valve 16 and a common pulmonary artery vessel 18; the upper right port is equipped with a left ventricular inlet valve 22 and a common pulmonary vein vessel 20; the lower right port is equipped with a left ventricular outlet valve 21 and a common artery vessel 19; the connecting buckles and sealing rings 25 of the left and right shells can also be seen.
[0108] There are two push-pull plates, including a left ventricular push-pull plate 9-A and a right ventricular push-pull plate 9-B. Both the left ventricular push-pull plate 9-A and the right ventricular push-pull plate 9-B are located inside the housing and are fixed to both ends of the push-pull rod 5. The plates of the left ventricular push-pull plate 9-A and the right ventricular push-pull plate 9-B are connected to the outer surfaces of the diaphragms of the left and right ventricles, respectively.
[0109] like Figure 1 , Figure 2 , Figure 9 , Figure 10 As shown, the right end of the push-pull rod 5 is provided with a left ventricular push-pull plate 9-A, which is connected to a portion of the outer surface of the left ventricular diaphragm 2-A; the left end of the push-pull rod 5 is provided with a right ventricular push-pull plate 9-B, which is connected to a portion of the outer surface of the right ventricular diaphragm 2-B.
[0110] pass Figure 3 , Figure 4 , Figure 5 , Figure 6 Simultaneously, it can be seen that spur teeth 4 are provided on the push-pull rod 5, and the two sides of spur teeth 4 mesh with the round semi-tooth 3 and round semi-tooth 7 of the power system. The power system is located between the left ventricular push-pull plate 9-A and the right ventricular push-pull plate 9-B, and the power system includes a micro motor and multiple gears of the rotary linear motion structure. The micro motor meshes with the spur teeth 4 through multiple gears. When the micro motor drives the rotary linear motion structure to move linearly in both directions, it drives the left ventricular push-pull plate 9-A and the right ventricular push-pull plate 9-B to move in opposite directions; from Figure 1 It can also be seen that when the left ventricular push-pull plate 9-A and the right ventricular push-pull plate 9-B move in the positive direction, the left ventricular push-pull plate 9-A pushes the left ventricular diaphragm 2-A, reducing the volume of left ventricular 1-A and pumping blood out of left ventricular 1-A through the outgoing valve. At the same time, the right ventricular push-pull plate 9-B stretches the right ventricular diaphragm 2-B, increasing the volume of right ventricular 2-B, which then draws blood in through the incoming valve; then from... Figure 2It can also be seen that when the left ventricular push-pull plate 9-A and the right ventricular push-pull plate 9-B move in opposite directions, the left ventricular push-pull plate 9-A will stretch open the diaphragm of the left ventricle 1-A, increasing the volume of the left ventricle 1-A. The left ventricle 1-A draws in blood through the inlet valve, while the right ventricular push-pull plate 9-B pushes the diaphragm of the right ventricle 1-B, reducing the volume of the right ventricle 1-B. The right ventricular push-pull plate 9-B will pump out the blood from the right ventricle 1-B through the outlet valve.
[0111] like Figure 1 and Figure 9 The bionic heart system shown is in the following state: The left ventricular push-pull plate 9-A compresses the left ventricular pia mater 2-A to the right, reducing the volume of the left ventricular 1-A and creating positive pressure within it. Blood in the left ventricular 1-A exits through the left ventricle to valve 21, and the common artery 19 is pumped out. Simultaneously, the right ventricular push-pull plate 9-B pulls the right ventricular pia mater 2-B to the right, increasing the volume of the right ventricular 1-B and creating negative pressure within it. Blood in the artificial blood vessel of the common vein 17 is drawn into the right ventricular 1-B through the right ventricle to valve 15. For example... Figure 2 , Figure 10 The bionic heart system shown is in the following state: Right ventricular push-pull plate 9-B squeezes right ventricular lamina 2-B to the left, reducing the volume of right ventricular 1-B; left ventricular push-pull plate 9-A pulls left ventricular lamina 2-A to the left, increasing the volume of left ventricular 1-A. Similarly, right ventricular 1-B pumps blood out through right ventricular outflow valve 16 and pulmonary artery 18, while left ventricular 1-A draws blood in through left ventricular inflow valve 22 and pulmonary vein 20. Figure 1 , Figure 9 The state shown and Figure 2 , Figure 10 The alternating states shown achieve the purpose of ventricular contraction and relaxation, as well as blood circulation.
[0112] The push-pull rod 5 has spur teeth 4 on both sides of its middle section. The power system is located in the middle of the housing and includes a micro motor, a rotary linear motion structure, a one-way bearing, and gears. The micro motor drives the rotary linear motion structure to perform bidirectional linear motion, which in turn drives the push-pull rod 5 to perform bidirectional linear motion, i.e. Figure 1 , Figure 2 It moves in a cyclical pattern in the left and right directions as shown.
[0113] Through the power system, push-pull rod 5, and the bidirectional linear reciprocating motion of the left and right ventricular push-pull plates, the left ventricle 1-A and right ventricle 1-B cyclically draw in or pump out blood, ensuring the smooth operation of the bionic heart system in this embodiment. Furthermore, although the volumes of the left ventricle 1-A and right ventricle 1-B continuously change, as... Figure 8As shown, the movement states of the left ventricular diaphragm 2-A and the right ventricular diaphragm 2-B are constantly changing and parallel. The overall volume of the left ventricle 1-A and the right ventricle 1-B remains constant; that is, when the volume of one ventricle increases, the volume of the other ventricle must decrease. The exchange of volume space between the two ventricles achieves the balance of the internal space of this application. At the same time, the continuous airflow in the left and right parts inside the shell also achieves uniform heat dissipation for all components.
[0114] Preferably, please see further details. Figure 1 and Figure 2 When the left ventricular push-pull plate 9-A compresses the left ventricular diaphragm 2-A to a preset limit position, or the right ventricular push-pull plate 9-B compresses the right ventricular diaphragm 2-B to a preset limit position, gaps still exist between the left ventricular diaphragm 2-A and the shell, and between the right ventricular diaphragm 2-B and the shell. This means that neither the left ventricular diaphragm 2-A nor the right ventricular diaphragm 2-B will rub against the shell, reducing wear and tear on the left and right ventricular diaphragms 2-A and 2-B, and extending their service life. It also avoids blood damage accidents caused by friction. Furthermore, compared to the existing soft balloons that need to be completely bent each time blood is pumped, the left ventricular diaphragm 2-A and right ventricular diaphragm 2-B experience less deformation under compression during pumping, resulting in less resistance and preventing bending and damage. This significantly increases the service life of the diaphragms and improves the durability of this application.
[0115] Optionally, the rotary linear running structure includes round teeth, round half teeth, straight teeth 4, a connecting shaft, and a slot; the round teeth and round half teeth are connected in series, with two sets respectively set on the left and right sides of the straight teeth 4. The round half teeth and straight teeth 4 mesh left and right. When the micro motor rotates, it drives the one-way bearing, round teeth, and round half teeth to rotate. The round half teeth mesh with the straight teeth 4 from left and right, causing the straight teeth 4 to run in both forward and reverse directions.
[0116] Optionally, the bionic heart system of this embodiment further includes a power system support frame 8. The power system support frame is disposed inside the housing and located in the middle of the housing, and the power system is mounted on the power system support frame 8.
[0117] like Figure 3 and Figure 4 As shown, the circular semi-tooth includes a left circular semi-tooth 3 and a right circular semi-tooth 7. The circular tooth includes a left micro motor transmission gear 37, a left transmission gear 31, a right micro motor transmission gear 38, a right transmission gear 32, a main transmission gear 33, and a tandem gear 34 of the main transmission gear.
[0118] like Figure 5As shown, the main drive gear 33 and the tandem gear 34 of the main drive gear are connected in series via the tandem shaft 30 of the main drive gear. The left drive gear 31 is connected in series with the left circular half-tooth 3 via the tandem shaft 26, and the right drive gear 32 is connected in series with the right circular half-tooth 7 via the tandem shaft 27.
[0119] Please see further. Figure 3 and Figure 4 The left transmission structure, formed by the left micro motor drive gear 37, left transmission gear 31, left circular half-tooth 3, and the connecting shaft 26 of the circular tooth and the left circular half-tooth, is located on the upper side of the push-pull rod 5. The right transmission structure, formed by the right micro motor drive gear 38, right transmission gear 32, right circular half-tooth 7, and the connecting shaft 27 of the circular tooth and the right circular half-tooth, is located on the lower side of the push-pull rod 5. The left micro motor drive gear 37 and the right micro motor drive gear 38 have identical structures, the left transmission gear 31 and the right transmission gear 32 have identical structures, and the left circular half-tooth 3 and the right circular half-tooth 7 have identical structures. The main transmission structure, formed by the main transmission gear 33, the connecting gear 34 of the main transmission gear, and the connecting shaft 30 of the main transmission gear, is located between the left and right transmission structures.
[0120] It should be noted that both the left semi-circular tooth 3 and the right semi-circular tooth 7 have meshing teeth only on half of the arc, and the left semi-circular tooth 3 and the right semi-circular tooth 7 are arranged symmetrically with respect to the push-pull rod 5. Please refer to [link / reference]. Figure 6 and Figure 7 When the meshing tooth of the left circular semi-tooth 3 engages with the straight tooth 4, the arc of the non-meshing tooth of the right circular semi-tooth 7 rotates to the part of the straight tooth 4, and the right circular semi-tooth 7 does not engage with the straight tooth 4, thus enabling the push-pull rod 5 to move in the direction of the left ventricle 1-A. Similarly, when the meshing tooth of the right circular semi-tooth 7 engages with the straight tooth 4, the left circular semi-tooth 3 does not engage with the straight tooth 4, thus enabling the push-pull rod 5 to move in the direction of the right ventricle 1-B. The arrangement of the left and right circular semi-tooths enables the push-pull rod 5 to perform a cyclic reciprocating linear motion. In addition, in this embodiment, the push-pull rod 5 can operate vertically, which, compared with the existing piston connecting rod (oscillating) operation, will make the power system run more smoothly, with less effort, and with lower energy consumption.
[0121] In one embodiment, the power system further includes a one-way bearing. The micro motor is a dual motor, with two one-way bearings respectively mounted on the shafts of the two micro motors. When one micro motor rotates to perform work, the other micro motor will not rotate and will be in standby mode because the one-way bearing is reversed. When the micro motor that is performing work fails or stops working, the other standby micro motor will rotate to perform work under the instruction of the intelligent system.
[0122] See Figures 3 to 5The micro motors include a left micro motor 14 and a right micro motor 13, and the one-way bearings include a left one-way bearing 35 and a right one-way bearing 36. The left micro motor shaft 28 is sleeved on the left one-way bearing 35, which is sleeved on the left micro motor drive gear 37. The left micro motor drive gear 37 meshes with the main drive gear 33. The tandem gear 34 of the main drive gear 33 meshes with the left drive gear 31. The left drive gear 31 is connected in series with the left circular half-tooth 3, which meshes with the spur tooth 4 on one side of the push-pull rod 5. The right micro motor shaft 29 is sleeved on the right one-way bearing 36, which is sleeved on the right micro motor drive gear 38. The right micro motor drive gear 38 meshes with the main drive gear 33. The tandem gear 34 of the main drive gear 33 meshes with the right drive gear 32, which is connected in series with the right circular half-tooth 7. The right circular half-tooth 7 meshes with the spur tooth 4 on the other side of the push-pull rod 5.
[0123] Please see further. Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 Bionic heart system in Figure 6 status and Figure 7 During the direct cyclic change of state, when the main motor is the left micro motor 14 and the backup motor is the right micro motor 13, the left micro motor 14 starts and the right micro motor 13 brakes. The rotation of the left micro motor shaft 28 drives the left one-way bearing 35 and the left micro motor transmission gear 37 to rotate. The left micro motor transmission gear 37 drives the main transmission gear 33 to rotate. The tandem shaft 30 of the main transmission gear causes the tandem gear 34 of the main transmission gear to rotate synchronously with the main transmission gear 33. The tandem gear 34 of the main transmission gear 33 drives the left transmission gear 31 to rotate. The tandem shaft 26 of the left transmission gear 31 and the left circular half-tooth 3 causes the left circular half-tooth 3 to rotate synchronously with the left transmission gear 31. At the same time, the tandem gear 34 of the main transmission gear drives the right transmission gear 32 to rotate. The tandem shaft 27 of the circular tooth and the right circular half-tooth causes the right circular half-tooth 7 to rotate synchronously with the right transmission gear 32. The left half-circular tooth 3 and the right half-circular tooth 7 mesh with the straight tooth 4 in sequence to realize the left and right reciprocating motion of the push-pull rod.
[0124] When the main motor fails, the backup motor, namely the right micro motor 13, starts. The right micro motor shaft 29 rotates, driving the right one-way bearing 36 and the right micro motor transmission gear 38 to rotate. The right micro motor transmission gear 38 drives the main transmission gear 33 to rotate. The meshing relationship of the remaining gears is the same as described above, and will not be repeated here.
[0125] Understandably, during operation, one of the left micro motor 14 and the right micro motor 13 acts as the main motor, while the other serves as a backup motor. When the main motor fails, the backup motor will perform work under the control of the intelligent system to prevent the bionic heart system from stopping due to the main motor failure, thus endangering life and further improving the safety performance of the bionic heart system, ensuring its safe operation.
[0126] Optionally, there are four artificial blood vessels, which are respectively connected to the left atrial incision, right atrial incision, aortic blood vessel, and pulmonary aortic blood vessel. The other end of the four artificial blood vessels is respectively inserted into the corresponding tube opening at the top of the shell and fixed with a buckle.
[0127] Please see further. Figure 12 The four artificial blood vessels are a common vein (17), a common pulmonary artery (18), a common artery (19), and a common pulmonary vein (20). Common vein 17 and common pulmonary artery 18 connect to the right ventricle (1-B). Common vein 17 corresponds to the right ventricular inlet valve (15), and common pulmonary artery 18 corresponds to the right ventricular outlet valve (16). Common artery 19 and common pulmonary vein 20 connect to the left ventricle (1-A). Common artery 19 corresponds to the left ventricular outlet valve (21), and common pulmonary vein 20 corresponds to the left ventricular inlet valve (22). One end of each artificial blood vessel connects to the corresponding part of the body, and the other end is inserted into the opening of the casing. Figure 11 The connector 24 shown is for the artificial blood vessel and its port. This part is fixed by a snap fastener, which facilitates the installation of the artificial blood vessel and its quick replacement when needed. That is, when it needs to be replaced after a certain number of years of use, simply disconnect the lower device of this invention, retain the original artificial blood vessel, and then connect it to the new lower device's port.
[0128] Optionally, please see further. Figure 11 The housing has a detachable symmetrical structure, consisting of two parts, left and right. The two parts are connected and sealed by connecting clips and sealing rings 25. Of course, the housing in this example can also be packaged and disassembled in various ways. For example, the left and right housings can be set as a whole, with an opening on only one side. After the internal components are installed, the housing can be sealed with a cover and sealing ring.
[0129] Optionally, the bionic heart system also includes a power supply system. The power supply system is wirelessly connected to the external environment. The internal power supply system includes an electrically connected receiving power coil 39, a built-in rechargeable battery 10, and a circuit board. The receiving power coil 39 can be implanted subcutaneously to receive power at closer range and improve energy utilization. The structure of the receiving power coil 39 is as follows: Figure 13 As shown.
[0130] Optionally, the bionic heart system also includes a communication system, which comprises a communication module, a processor, and is connected to the intelligent circuit board chip 11 system and the external warning system. The connection between the built-in and external parts of the communication system is a wireless automatic pairing connection.
[0131] Optionally, the bionic heart system also includes a smart chip and sensor system, which includes sensors 12, a smart circuit board chip 11, a circuit board, and a software system. Sensor 12 includes a temperature sensor, a lung motion sensor, and a motion sensor. The built-in smart circuit board chip 11 will set the initial speed of the micro motor according to the user's gender, weight, and blood supply needs. During use, the speed can still be adjusted by sensing the user's body temperature, movement speed, etc., through the sensor 12, to increase or decrease the blood supply at any time, thus mimicking the blood supply mode of the human heart.
[0132] like Figure 1 As shown, the built-in rechargeable battery 10, intelligent circuit board chip 11, and sensor 12 are all located inside the housing, and their specific positions can be adjusted according to the space inside the housing. The intelligent circuit board chip 11 is electrically connected to the left micro motor 14 and the right micro motor 13, and is used to control the starting and braking of the two micro motors. The intelligent circuit board chip 11 is also electrically connected to the power receiving coil 39 and the built-in rechargeable battery 10. The built-in rechargeable battery 10 provides backup power for the micro motors and the intelligent circuit board chip 11, and the charging method of the built-in rechargeable battery 10 is a non-contact wireless charging method. Using wireless charging can solve the charging problem of the bionic heart system, while making the device of this embodiment more humanized, intelligent, and convenient to use, so that users of the artificial heart system no longer have to suffer from the pain caused by the body being covered with tubes, and it brings the convenience of bathing and changing clothes.
[0133] Optionally, a built-in rechargeable battery 10 is provided, which allows the user to live like a normal person for a certain period of time without having to carry other auxiliary equipment, even when the external power-generating device is removed.
[0134] Optionally, the smart circuit board chip 11 can monitor the operating status of the micro motor and transmit the operating status information to the external monitoring system in a timely manner via wireless signal.
[0135] It should be noted that the artificial bionic heart system is equipped with an information control unit processor. The information control unit processor analyzes and processes the data sensed by the built-in intelligent circuit board chip 11 and sensor 12, such as the power of the built-in rechargeable battery 10, the speed of the micro motor, the internal pressure signal of the ventricular diaphragm, the speed of human movement, the speed of lung respiration, and body temperature. It can instruct and adjust the speed of the motor and crankshaft at any time, such as from 60 revolutions per minute to 70, 80, or even 160 revolutions per minute, to adapt to the blood supply requirements of the human body.
[0136] Preferably, the intelligent circuit board chip 11 can automatically monitor, analyze, and intelligently process various operational statuses of the bionic heart system. When the intelligent circuit board chip 11 and sensor 12 detect human body temperature, lung activity, and the speed of human body movement, and can calculate the amount of blood that should be supplied by combining the user's weight, gender, blood pressure, body fat, and other data pre-stored in the intelligent circuit board chip 11, the intelligent chip 11 will instruct the micro motor to change its rotation speed in a timely manner, thereby changing the operating frequency of the ventricular diaphragm and the speed of blood circulation in the human body.
[0137] Preferably, the intelligent circuit board chip 11 sets different initial speeds of the micro motor according to gender, weight, and the body's blood supply requirements, and can sense the speed of the user's body movement and adjust the speed accordingly.
[0138] For example, a 50kg adult female or a 60kg adult male, with a resting heart rate of 60 beats per minute and a heart rate of 70ml of blood pumped per minute, approximately 4200ml of blood is pumped out of the heart and delivered to various parts of the body per minute. The micro-motor drives the push-pull rod 5 to move 60 times per minute. Of course, the amount of blood pumped per minute varies for individuals of different weights; the greater the weight, the greater the blood pumped per minute. These settings can be configured before the user undergoes surgery. The device in this application is designed to pump 70ml of blood per cycle. When the intelligent circuit board chip 11 and sensor 12 sense an increase in body temperature, accelerated breathing, or increased physical activity, they instruct the micro-motor to either increase its speed (from an initial 60 beats per minute, gradually increasing to a maximum of 120 beats per minute; ... from an initial 90 beats per minute, gradually increasing to a maximum of 160 beats per minute) or decrease its speed (from a maximum of 120 or 160 beats per minute, gradually decreasing to 60 or 90 beats per minute), thereby simulating the rhythm and purpose of human heart function. Furthermore, a single product model addresses the compatibility issue for male and female patients of different weights, making this application more ergonomic and humane.
[0139] Optionally, the bionic heart system also includes a wearable vest or belt and an external integrated module system, which includes a power transmission coil 40, an external rechargeable battery 43, an external circuit board chip 42, a communication module, an early warning system, and a display.
[0140] like Figure 14 The schematic diagram of the external integrated module system shown includes a power transmission coil 40, an external rechargeable battery 43, an external circuit board chip 42, a communication module, a display, and an early warning system 41. The early warning system can be a horn, and the display can be a light. The external integrated module system has multiple backups for recharging, such as… Figure 15 The schematic diagram of the wearable vest 44 shown includes a vest zipper 47, pockets 46 and zippers 45. An external integrated module system is mounted in pocket 46, allowing for long-term stable communication with the bionic heart system inside the body, continuously charging the built-in rechargeable battery 10, and directly powering the built-in micro-motor. Furthermore, the electronic components are located in the chest pocket 46, shortening the sensing distance between electronic components inside and outside the body, thus improving work efficiency.
[0141] Optionally, all surfaces that come into contact with human blood, such as the left ventricle, right ventricle, artificial blood vessels, and inlet and outlet valves, must be coated with a biocompatible material. This prevents adverse reactions in the human body and further improves safety.
[0142] This application also provides a method for implementing a bionic heart system, which is applied to the aforementioned bionic heart system. The method primarily uses a smart circuit board chip 11 to control and instruct all components of this application, enabling them to achieve the design objectives of this application.
[0143] Primarily, the left micro motor 14 and right micro motor 13 are controlled by the intelligent circuit board chip 11. One of the dual motors acts as the main motor, while the other serves as a backup motor. When the main motor fails, the backup motor will perform work under the control of the intelligent chip 11. Taking the left micro motor 14 as the main motor and the right micro motor 13 as the backup motor as an example, when the main motor is operating normally, the intelligent chip 11 controls the left micro motor 14 and the right micro motor 13 to brake. When the main motor fails, the intelligent chip 11 promptly activates the right micro motor 13 to prevent the bionic heart system from stopping due to the main motor failure.
[0144] It should be noted that the illustrations shown in this application are for ease of understanding only. In actual manufacturing and use, the position, shape, size, proportion, and shell structure of each component in the illustrations should be adjusted according to actual needs during manufacturing (unless otherwise specified); for example (but not limited to) the thickness and arrangement of the main blood vessel and the tube opening, the shape, size and position of the inlet and outlet valves, the shell structure, and the shape, size and placement of each component.
[0145] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A bionic heart system, characterized in that, The bionic heart system comprises a shell, push-pull plates, a push-pull rod, a left ventricular soft membrane, a right ventricular soft membrane, an artificial blood vessel, an inlet valve, an outlet valve and a power system. The left and right ventricular soft membranes are fixedly installed on the two sides of the shell, the left ventricular soft membrane and the left part of the shell form a left ventricle, and the right ventricular soft membrane and the right part of the shell form a right ventricle. A plurality of pipe mouths are arranged on the top of the two sides of the shell, and the inlet valve or the outlet valve and the artificial blood vessel are respectively installed at each pipe mouth. The push-pull plates comprise left ventricular push-pull plates and right ventricular push-pull plates, the left ventricular push-pull plates and the right ventricular push-pull plates are located in the shell and are fixedly installed on the two ends of the push-pull rod, the left ventricular push-pull plates are connected with the outer surface of the left ventricular soft membrane, and the right ventricular push-pull plates are connected with the outer surface of the right ventricular soft membrane. Straight teeth are arranged on the two sides of the push-pull rod, and the straight teeth are engaged with the circular half teeth of the power system. The power system is located between the left ventricular push-pull plates and the right ventricular push-pull plates, and the power system comprises a micro motor and a plurality of gears of a rotary linear motion structure. The micro motor engages the straight teeth through the gears, and when the rotary linear motion structure is driven by the micro motor to move linearly in the positive and negative directions, the left ventricular push-pull plates and the right ventricular push-pull plates are driven to move in the positive and negative directions. When the left ventricular push-pull plates move in the positive direction, the left ventricular push-pull plates push and press the left ventricular soft membrane to reduce the volume of the left ventricle, pump out the blood in the left ventricle, and the right ventricular push-pull plates stretch the right ventricular soft membrane to expand the volume of the right ventricle, so that the right ventricle inhales blood. When the left ventricular push-pull plates move in the negative direction, the left ventricular push-pull plates stretch the left ventricular soft membrane to expand the volume of the left ventricle, so that the left ventricle inhales blood, and the right ventricular push-pull plates push and press the right ventricular soft membrane to reduce the volume of the right ventricle, so that the right ventricle pumps out the blood in the right ventricle; the cycle is repeated to produce the same pumping function, pulsation and blood pressure difference as the human heart. The rotary linear motion structure comprises circular teeth, circular half teeth and straight teeth, the circular teeth and the circular half teeth are connected in series, there are two groups of circular teeth, which are arranged on the left and right sides of the straight teeth, and the circular half teeth and the straight teeth are engaged on the left and right sides, when the micro motor rotates, the one-way bearing, the circular teeth and the circular half teeth are rotated, one group of circular half teeth engages the left side of the straight teeth, and the other group of circular half teeth engages the right side of the straight teeth, so that the straight teeth move in the positive and negative directions. The power system further comprises one-way bearings, the micro motor is a double motor, and the two one-way bearings are respectively sleeved on the two micro motor shafts, when one micro motor rotates to work, the other micro motor does not rotate due to the reverse installation of the one-way bearing and is in a standby state; when the micro motor working is faulty or stops, the standby micro motor rotates to work under the instruction of the intelligent system.
2. The bionic heart system of claim 1, wherein, The artificial blood vessels are four, one end is respectively sutured and connected with the left atrium incision, the right atrium incision, the aorta blood vessel and the pulmonary aorta blood vessel of the human body, and the other end is respectively inserted into the pipe orifice at the top of the shell and is fixed by using buckles.
3. The bionic heart system of claim 1, wherein, The bionic heart system further comprises a power supply system, the in-vivo and in-vitro connection mode of the power supply system is wireless connection, the in-vivo part of the power supply system comprises a receiving power coil, a built-in charging battery and a circuit board which are electrically connected with each other, wherein the receiving power coil can be implanted subcutaneously near the body surface to facilitate closer distance receiving of electric energy.
4. The bionic heart system of claim 1, wherein, The bionic heart system further comprises a communication system, the communication system comprises a communication module, a processor and an early warning system, and the communication system is composed of an in-built part and an external part, and the in-built part and the external part of the communication system are wirelessly connected.
5. The bionic heart system of claim 1, wherein, The bionic heart system further comprises an intelligent chip and a sensor system, the intelligent chip and the sensor system comprise a sensor, a chip, a circuit board and a software system; the in-built intelligent chip will set the initial rotating speed of the micro motor according to the different blood supply demands of the user's gender, weight and body, and the rotating speed can still be adjusted by the sensor to sense the user's body temperature and the speed of movement during use, so as to increase or decrease the blood supply at any time, and simulate the human heart blood supply mode operation.
6. The bionic heart system of claim 1, wherein, The bionic heart system further comprises a wearing vest or waistband and an in-vitro integrated module system, the in-vitro integrated module system comprises a sending power coil, an external charging battery, an external circuit board chip, a communication system, an early warning system and a display.
7. The bionic heart system of claim 1, wherein, The surfaces of the left ventricle, the right ventricle, the artificial blood vessels, the inlet valve and the outlet valve which contact with the human blood all need to be coated with a material compatible with the human body.
Citation Information
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