250 results about "Artificial heart" patented technology

The invention belongs to the technical field of biological medicine, and particularly discloses an artificial valve tissue calcification model and a preparation method and application thereof. The preparation method comprises the following steps: providing human valvular interstitial cells; the method comprises the following steps: providing a hydrogel system, wherein the hydrogel system comprises type I collagen, fibrinogen and Matrigel matrigel; constructing an engineered heart valve tissue strip by taking the hydrogel system as a skeleton structure between valve interstitial cells; and culturing the engineered heart valve tissue strip by using a calcification induction culture solution, so that the valve tissue generates a calcification phenotype. The model provided by the invention can generate a valve calcification phenotype which is similar to that after human heart valve calcification and is represented by valve interstitial cell activation, extracellular matrix remodeling such as collagen mass secretion and calcium deposition region generation. The model provided by the invention is low in cost, can be produced in batches, meets the research on the pathogenesis of extracorporeal valve calcification, and makes up for the dilemma that no artificial valve calcification model is available for drug research and development at present.

The invention discloses a steady-state leakage and forward flow testing device for a heart valve, and relates to the technical field of medical instrument inspection. The device comprises a reservoir, a pipeline, and a driving device, a regulating valve, a front-end flow meter, a front-end valve mounting channel and a rear-end valve mounting channel which are sequentially mounted on the pipeline, and the two ends of the pipeline are communicated with the reservoir. The heating and temperature control system ensures that the liquid temperature meets the requirement of a new edition standard, the valve installation channel with the inner diameter of 70 mm is suitable for a large-size mitral valve, and differential pressure sensor interfaces are arranged in front of and behind the valve ring of the artificial heart valve, so that the requirement of the new standard for the position of a sensor is met; according to the device, flexible selection of pressure values under different blood pressure states is achieved by adjusting the rotating speed of a driving device (a magnetic pump), accurate measurement and automation of the leakage amount are achieved through a high-precision flow meter, and the whole design aims at improving the accuracy and repeatability of testing and ensuring the quality and safety of an artificial heart valve.

Disclosed herein are a high-molecular artificial heart valve and a preparation method therefor, relating to the technical field of medical instruments. The high-molecular artificial heart valve comprises a frame, a skirt arranged on the surface of the frame, and valve leaflets bonded with the skirt. The preparation method therefor comprises the following steps: after the skirt is prepared on the frame, arranging a part of the valve leaflets on the surface of at least a part of the edge of the skirt, or connecting the edges of the valve leaflets with the at least a part of the skirt, and then bonding the valve leaflets with the edge of the skirt by means of interface microtreatment. The interface microtreatment is achieved by means of a polymer solution that bonds the valve leaflets with the edge of the skirt or by utilizing thermal bonding between the valve leaflets and the edge of the skirt. The valve prepared by the method has the advantages of uniform structure and high strength, effectively improving the production quality of the valve.

The invention provides an artificial heart valve thrombus risk assessment method and device. The thrombus risk assessment method for the artificial heart valve comprises the following steps: acquiring a physiological scene after the artificial heart is implanted into the artificial valve through a resistance characteristic parameter and an elastic expansion characteristic parameter; starting a pulsating pump to output a pulsating flow medium to the artificial heart in a physiological scene; capturing the motion trail of the fluorescent particles through a high-speed camera and obtaining the original data of the blood flow velocity at the downstream of the artificial valve; acquiring a fluid mechanics simulation parameter group according to the blood flow velocity original data; and inputting a pre-trained valvular thrombus random forest classifier according to the fluid mechanics simulation parameter group, and outputting a thrombus risk probability graph in the physiological scene. According to the method, the fluid mechanics simulation parameter group is calculated based on the instantaneous velocity vector field captured by the PIV and the space-time distribution information, the two-dimensional / three-dimensional thrombus risk probability graph is generated through the random forest classifier, the high-risk point coordinates are marked, and the thrombus probability and the thrombus position are accurately predicted.

The invention discloses a self-repairing acrylate dielectric material based on a dual-mode network as well as a preparation method and application of the self-repairing acrylate dielectric material based on the dual-mode network. According to the material, dynamic covalent chemistry and a synergistic effect of a dual-mode network structure are utilized, a long-chain flexible cross-linking agent and a short-chain chain extender containing dynamic thiocarbamate bonds are adopted, and the self-repairing acrylate dielectric material based on the dual-mode network is prepared. Meanwhile, the proportion of the multifunctional micromolecule TMPTMA or PET4A is optimized, and performance balance and self-repairing are achieved. In the preparation process, click reaction curing is initiated through ultraviolet light, the process is simple, and the cost is low. The tensile strength is 0.3-0.6 MPa, the elongation at break is 350%, the dielectric constant at 1kHz is 7-9, the dielectric loss is 0.047-0.067, and the mechanical property can be completely recovered within 30 minutes at the temperature of 100 DEG C. The device is suitable for bionic flapping wing aircraft muscle systems, muscle-like drivers, repairable artificial heart valves and the like, damage is repaired through dynamic key recombination, the reliability of the device is improved, and the service life of the device is prolonged.

The invention provides a mitral valve replacement system in the technical field of medical instruments, and the mitral valve replacement system comprises a valve stent, a fixing ring and a shearing part, the fixing ring is arranged around the end face of the valve stent, and the shearing part is oppositely arranged on one side of the valve stent. The fixing ring surrounds the groove in the end face of the valve support to limit the moving direction of the valve support, so that the valve support is stably located at the native mitral valve ring, and the butterfly buckle is arranged on the valve support to buckle and clamp the native mitral valve leaflet. The fixing ring is tied and hooped at the groove in the end face of the valve support of the artificial heart valve, so that the artificial heart valve is stably positioned at the original mitral valve annulus, displacement of the artificial heart valve caused by external force factors such as blood flow impact force is prevented, and then the perivalvular leakage problem caused by displacement is avoided; the native mitral valve anterior leaflet is cut open through the cutting part, and then the cut native mitral valve anterior leaflet is buckled and clamped through the butterfly buckle, so that blood flowing through the native mitral valve anterior leaflet smoothly circulates, and the problem that the left ventricular outflow tract is obstructed is solved.

The invention discloses an interventional artificial heart liquid path shunting structure, and relates to the technical field of medical instruments, the interventional artificial heart liquid path shunting structure comprises an impeller rotating shaft, a transmission shaft and a multi-cavity tube, the impeller rotating shaft is internally provided with a liquid path channel, the far end of the impeller rotating shaft is rotatably connected with a pigtail tube through a rotating structure, and the multi-cavity tube comprises a perfusion cavity and an outflow cavity; the near end of the impeller rotating shaft is connected with the far end of the transmission shaft, an inlet communicated with the liquid path channel is formed in the impeller rotating shaft, the inlet is communicated with the perfusion cavity, the liquid path channel and the outflow cavity, and perfusion liquid flows in from the perfusion cavity and flows out from the transmission shaft. The perfusate flows into the liquid path channel from the near end of the impeller rotating shaft through the inlet, flows to the far end of the impeller rotating shaft along the liquid path channel, flows out of the gap between the impeller rotating shaft and the rotating structure and then enters the human body, and meanwhile the perfusate flows out of the outflow cavity. Interface lubrication can be improved, friction is reduced, and cooling and heat dissipation can be achieved.

The embodiment of the invention provides a pulse control system and device of a ventricular catheter pump, and relates to the technical field of artificial hearts. When controlling the ventricular catheter pump, the pulse control equipment executes the following pulse control method: applying a pulse control signal to a driving assembly of the ventricular catheter pump, wherein the pulse control signal is a periodic pulse signal containing a pulse rotating speed; and according to the pulse control signal, the driving assembly is controlled to alternately operate according to a set operation rotating speed and a pulse rotating speed, so that the ventricular catheter pump generates periodic pulse jitter. By applying the scheme provided by the embodiment, thrombosis is effectively prevented, and the operation safety of the ventricular catheter pump is improved.

The invention relates to a high-molecular artificial heart valve and a preparation method thereof. The high-molecular artificial heart valve is composed of a specially-designed valve support and high-molecular valve leaflets. The inflow end of the valve support extends outwards in the radial direction relative to the outflow end to form a circumference, through holes are distributed in the circumference, a plurality of arc-shaped sections are formed at the outflow end and used for attachment of valve leaflets, reinforcing ribs are arranged on the outer walls of the arc-shaped sections, arc-shaped grooves are formed in the surfaces of the arc-shaped sections, and convex stand columns are arranged at the junctions of the adjacent valve leaflets at the top of the outflow end between the adjacent arc-shaped sections. The preparation method adopts a step-by-step dip-coating curing process and comprises the steps of pre-dip-coating, formal dip-coating and annealing heat treatment. By optimizing the structural design and preparation process of the valve stent, the combination firmness of the valve stent and the high-molecular valve leaflet is remarkably improved, the pore defect between the valve stent and the high-molecular valve leaflet is effectively reduced, and the internal stress of the valve leaflet under the blood flow load is reduced, so that the service life of the high-molecular valve is greatly prolonged; and the reliability and the durability in practical application are improved.

The invention provides a preparation method of a polymer artificial heart valve composite material, which comprises the following steps: immersing a fabric with a first polymer layer on the surface into a poor solvent, and paving the fabric on a substrate, so that when the first polymer layer is in contact with a second polymer solution, the first polymer layer is only slightly dissolved; forming a coating formed by embedding the first polymer layer and the second polymer layer on the surface of the fabric under the action that the poor solvent prevents the second polymer solution from entering the fabric; meanwhile, after the fabric is immersed in the poor solvent, the adsorption of the fabric to the second polymer solution is reduced, so that the fabric is kept flat in the composite material, the internal structure of the composite material is uniform, and the stability of the composite material is enhanced. By means of the mode, the polymer artificial heart valve composite material which is uniform in internal structure and smooth and flat in surface is prepared.

The invention provides an artificial heart valve device, and relates to the technical field of heart surgeries, valve leaflets are fixedly mounted on a supporting assembly, and the inner edge of a suture ring is used for being sutured and fixed with the supporting assembly and providing support for the valve leaflets; the outer edge (second connecting surface) of the suture ring is sutured with a tissue ring, so that the valve leaflet and the supporting assembly are fixed on the tissue ring; the suture ring is a non-planar flexible ring which is continuously arranged, the inner edge (a first connecting surface) and the outer edge of the suture ring have a size difference in the radial direction and have an axial fall in the axial direction, and the surface of the suture ring is a spatial curved surface and is of a skirt-shaped size change structure, so that the outer edge of the suture ring can be subjected to radial size change; the circumferential size of the outer edge is adaptively and flexibly deformed so as to be matched with tissue rings of different sizes within a certain range, and the shape and size adaptation range of the suture ring is expanded.

1. Name of the product in this design: Transcatheter replacement of mitral valve. 2. Purpose of this design: for artificial heart valve replacement in the medical field. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The present invention belongs to the technical field of artificial heart valves, and particularly relates to a method for forming a frame of an artificial heart valve, a planar forming machine and a mold. The method for forming a frame of an artificial heart valve, the planar forming machine and the mold of the present invention are provided with a plurality of convex push blocks and arc-shaped push blocks that can move independently, and according to the forming curve of the wire, the mold closing directions of the respective push blocks are designed, which can avoid and overcome the technical problem in the prior art that during the planar forming process, when the upper and lower molds provide a relatively large vertical force, the sliding property of the wire in the horizontal direction is not good, resulting in incomplete mold closing and failure to achieve the expected shaping effect; moreover, due to the unique design of the mold closing direction, the external force applied by the push block on the wire is small, scratches on the wire are not likely to occur, and the appearance of the finished product will not be affected; the planar forming machine for the frame of the artificial heart valve can realize continuous automated production of planar forming, so as to improve production efficiency.

The application discloses a heart valve device and relates to the technical field of artificial heart valves, which comprises an outer valve frame and a valve leaflet assembly connected to the inside of the outer valve frame, and the outer valve frame is a ring-shaped grid frame; the outer valve frame comprises an inflow side grid frame and an outflow side grid frame arranged in sequence from an inflow end to an outflow end, and the inflow side grid frame and the outflow side grid frame form an annular recess for clamping a native valve ring on the outer periphery of the outer valve frame; the outflow side grid frame comprises a plurality of groups of grid support units connected in sequence along the circumferential direction and enclosed into a ring, and the grid support unit comprises an outer convex grid support and an inner concave grid support, and the outer surface of the inner concave grid support is arranged in a concave manner relative to the outer surface of the outer convex grid support. In this way, the anterior leaflet of the original mitral valve can be attached to the inner concave grid support, the extrusion of the outer valve frame on the anterior leaflet is reduced, the anterior leaflet is prevented from being extruded to the left ventricular outflow tract by the outer valve frame, and the outflow area of the left ventricular outflow tract is prevented from being reduced to cause obstruction.

Disclosed in the present application are an artificial heart valve, an interventional system, and a position registration method for an artificial heart valve. The artificial heart valve comprises: a stent, which is of a cylindrical structure and has a spatially axial direction, the interior of the cylindrical structure being a blood flow channel, and the stent being radially deformable so as to switch between a delivery state in which the stent is radially compressed and a deployed state in which the stent is radially deployed; valve leaflets, which are connected to the stent to control the blood flow channel; and a first radiopaque marker, which is connected to the stent. At the reference angle of viewing of the stent, when the stent rotates around its own axis, the distance between the projection position of the first radiopaque marker and the axis of the stent changes correspondingly.

The present invention provides an artificial heart pump device and a preparation method of a magnetic diaphragm pump, belonging to the field of medical devices. The artificial heart pump device includes a magnetic diaphragm pump system and a magnetic field generating system; the magnetic diaphragm pump includes a magnetic diaphragm and a non-magnetic pump body; after the magnetic diaphragm is magnetized radially, it deforms under a uniform magnetic field; the non-magnetic pump body cooperates with the magnetic diaphragm to generate elastic deformation, and realizes the function of pumping blood by changing the volume of the magnetic diaphragm pump; a hose connects each artery or vein where the magnetic diaphragm pump is connected to the human heart to complete the transportation and circulation of blood in the human blood vessels and the magnetic diaphragm pump; a one-way valve controls the one-way flow of blood; the magnetic field generating system generates a uniform magnetic field along the axial direction of the magnetic diaphragm. The artificial heart pump device provided by the present invention has higher operation reliability and longer service life.

The utility model discloses a machining die for an artificial heart valve support, which belongs to the technical field of production and machining of medical instruments, and comprises a support main body and a die-casting main body, the die-casting main body comprises at least two hold-down units, each hold-down unit comprises a first hold-down component and a second hold-down component, and the first hold-down component and the second hold-down component are arranged in the axial direction of the support main body. The first pressing and holding assembly and the second pressing and holding assembly are detachably connected. The first pressing assembly comprises a first pressing piece and a fixed anchor pressing piece, the fixed anchor pressing piece is arranged on the outer wall of the first pressing piece, the side, close to the fixed anchor pressing piece, of the first pressing piece is provided with a first protruding structure and a positioning groove, the first protruding structure is arranged in the positioning groove, and the fixed anchor pressing piece is provided with a second protruding structure corresponding to the first protruding structure. The inner wall and the outer wall of the fixing anchor are extruded and shaped through the first protruding structure and the second protruding structure respectively, so that the main body of the artificial heart valve stent and the fixing anchor are simultaneously machined at a time through the machining die, and the machining production efficiency is improved.

The present invention provides a valve delivery device and its delivery system, comprising: a catheter part, the catheter part is provided with a first end for being delivered into the human body and a second end for providing operations, and includes an inner tube and an intermediate tube sleeved outside the inner tube; a housing part, the housing part is provided with a first housing, an outer tube and a second housing, the first end of the outer tube is fixedly communicated with the first housing, and the second end of the outer tube is fixedly communicated with the second housing; an anchoring member, the anchoring member is fixed at the first end of the intermediate tube and fixedly carries a stent for an artificial heart valve; a first control structure arranged at the second end of the catheter part and used for controlling the relative sliding of the intermediate tube and the outer tube; the housing part is sleeved on the catheter part. The present invention is used to deliver an artificial heart valve to the position of the native valve and replace the diseased valve, and can perform circumferential control, thereby improving the delivery effect.

The present application relates to a kind of trans-catheter heart valve replacement system, which is composed of artificial heart valve and valve anchoring device, wherein the valve anchoring device can be wrapped outside valve chordae tendineae, while capturing native valve leaflet, providing positioning point for subsequent implantation of artificial heart valve;Artificial heart valve can be implanted in heart, and replace the physiological function of native valve.The valve anchoring device and artificial heart valve can be matched and positioned, in order to prevent the two from being too tight and continuous extrusion, friction and causing chordae tendineae rupture, there are two kinds of cooperation between them: the first cooperation state, can let artificial heart valve and valve anchoring device abut each other, ensure the stability of structure and position when the two are matched with each other;Second cooperation state, there is gap between artificial heart valve and valve anchoring device at this time, so that native valve leaflet or chordae tendineae can pass through, to reduce the contact area between valve replacement system and chordae tendineae as much as possible, avoid extruding chordae tendineae.

The present invention relates to an artificial heart valve, which comprises a valve stent, a first sealing membrane, a second sealing membrane, valve leaflets and valve leaflet anchoring members. The valve stent includes an inflow section and an outflow section; the first sealing membrane is attached to the outer side of the valve stent and comprises a hydrophilic swelling material, which can absorb liquid and swell after contacting with blood, for reducing paravalvular leakage; the second sealing membrane is arranged on the outer side of the first sealing membrane and at least covers all regions corresponding to the outer surface of the inflow section, for increasing the friction with the native valve leaflets; the valve leaflets are arranged inside the valve stent for controlling the unidirectional flow of blood; the valve leaflet anchoring members are spiral and can be coiled outside the mitral / tricuspid chordae tendineae plexus and interact with the valve stent. By providing the first sealing membrane and the second sealing membrane, the artificial heart valve of the present invention can better fit with the native tissue after being implanted into the mitral / tricuspid valve, so as to effectively prevent the occurrence of paravalvular leakage.

The present disclosure discloses a matching method and device of a heart valve and an electronic device. The method comprises: determining a plurality of target planes in a heart according to an anatomical structure image of the heart; determining a structural feature of the heart in each plane according to the anatomical structure image; determining a junction point in each target plane of the plurality of target planes according to the structural feature, wherein the junction point is a point at a junction edge between any two adjacent leaflets of the heart valve of the heart, and the junction edge is a connecting position between any two adjacent leaflets; determining a first push-away range corresponding to each target plane according to the junction point and the structural feature of the heart; determining a second push-away range corresponding to the heart valve according to the first push-away range corresponding to each target plane; and determining an artificial heart valve matched with the heart valve according to the second push-away range. The present disclosure solves the technical problem that the accuracy cannot be guaranteed due to the determination of the heart valve according to experience in the related art.

The utility model relates to a valve frame and an artificial heart valve. The valve frame can be switched between a radial compression structure and a radial expansion structure; each of an inflow row grid, an outflow row grid and a middle row grid of the valve frame comprises two rows of wave rods which are oppositely arranged and connected with each other, each row of wave rods comprises a plurality of supporting rods, and the opposite ends of every two adjacent supporting rods are connected at a joint part; each joint part comprises a solid part and a vacant part radially penetrating through the solid part, the opposite ends of the two adjacent supporting rods are smoothly connected with the solid part on the two sides of the vacant part, the vacant part is also in a smooth shape, and an opening of the vacant part corresponding to the wave crest of the wave rod faces the wave trough in the axial direction; the opening of the vacant part corresponding to the wave trough of the wave rod faces the wave crest in the axial direction; the joint part is used for helping each grid to uniformly deform in the structure conversion process of the valve frame; the width of the solid part is larger than or equal to the sum of two times of the width of the supporting rod and the width of the vacant part. The heart valve prosthesis comprises the valve frame, a covering film and at least two artificial valve leaflets capable of being opened and closed oppositely.

The present invention relates to a monitoring device for the operating state of an artificial heart pump, which can solve the monitoring problem that the rotational speed of the artificial heart pump blade does not match the rotational speed of the motor after the blood parameters change. The device mainly includes an artificial heart pump, a magnet holder, a contact-separation triboelectric nanogenerator module, an electromagnetic power generation module, and an independent-layer triboelectric nanogenerator module. At low speeds, the magnet in the pump is excited to rotate by the magnet on the magnet holder, and at the same time, the magnet on the copper electrode of the contact-separation triboelectric nanogenerator module is excited to periodically contact and separate from the insulator material layer, generating an electrical signal. At high speeds, the magnet in the pump cuts the coil to generate an electrical signal, and the frequency of this electrical signal represents the rotational speed of the artificial heart pump blade. The insulator material rotor part of the independent-layer triboelectric nanogenerator rotates with the motor shaft and frictions with the copper electrode on the stator to generate an electrical signal, and the frequency of this electrical signal represents the rotational speed of the motor. By comparing the frequencies of the two, it is possible to detect whether the artificial heart pump has lost its rotational speed and give an early warning in time.

A loading system for an artificial heart valve device is disclosed. A loading funnel is disposed within a watertight interior space that is at least partially filled with or fillable with a biocompatible fluid. The funnel may have a cylindrical end to which a delivery catheter is connected, the delivery catheter having a lumen that will receive a collapsed artificial heart valve device. The expanded artificial heart valve device may be placed within the funnel and pushed or pulled into the funnel, the funnel providing a predictable, reliable, and repeatable surface for collapsing the artificial heart valve device. Ultimately, the artificial heart valve device is collapsed and translated into the lumen of the delivery catheter for further translation therealong and release into the heart chamber of interest.

The invention discloses a telescopic and movable heart valve prosthesis stent and a control system thereof, and the telescopic and movable heart valve prosthesis stent comprises the telescopic and movable heart valve prosthesis stent which is provided with a concave honeycomb unit structure; the strain sensing module is integrated at the stressed part of the concave honeycomb unit and is used for acquiring strain data of each honeycomb unit in real time; the data transmission module is connected with the strain sensing module and transmits the strain data to the control module; the control module is in communication connection with the data transmission module and comprises the steps of pre-storing a mapping model and updating and / or storing a corresponding relation of compression force-strain-radial shrinkage amount; the PID control module is used for calculating a real-time compression force adjusting instruction according to the deviation between the real-time strain data and the target strain; and the force control execution module is arranged at the front end of the conveying conduit, is in communication connection with the control module, and is used for applying or reducing local compression force to the corresponding honeycomb unit according to the compression force adjustment instruction. The invention adapts to the growth needs of patients, and reduces the surgical risk.

The present invention provides a control system and method for personalized treatment of a left ventricular assist device, relating to the field of artificial heart technology. The method comprises: for each cardiac cycle, a Starling-like regulator receives a left atrial pressure signal fed back by a physiological feedback module, and outputs a desired cardiac index based on the patient's body surface area; a pump flow quantification feedback module calculates the pump flow in real time based on the rotational speed and current of the left ventricular assist device, and outputs the feedback cardiac index in combination with the patient's body surface area; calculates the deviation between the desired cardiac index and the feedback cardiac index, inputs the deviation into a controller, and the controller determines the output current increment based on the deviation; and repeats the above process until the control system stabilizes. Ventricular pressure is monitored by the physiological feedback module and the cardiovascular coupling module, and personalized physiological characteristics analysis is performed in combination with the patient's body surface area, so that the pump speed parameters can be automatically optimized according to the patient's real-time physiological state.

The application discloses a heart valve stent and an artificial heart valve structure formed by the heart valve stent. The heart valve stent comprises a stent body and a joint, wherein the joint comprises a fixed part and an elastic stretching part connected with the fixed part, and a movable end is formed at one end of the elastic stretching part away from the fixed part. Through the optimized design of the structure, the service life of the artificial heart valve installed on the stent is greatly prolonged, meanwhile, a material with smaller elasticity can be used to achieve the same valve performance as that of a material with higher elasticity in the prior art, and the leaflet assembly can be closed faster under less external force, and the effect is remarkable.

The invention discloses an artificial heart valve and a processing method. The heart valve prosthesis comprises a support and a plurality of valve leaflets connected to the support, the support is of a cylindrical structure, a blood flow channel is formed in the support, each valve leaflet comprises a body, the body has the transverse direction and the longitudinal direction which are opposite in the flattened state, and the outer edge of the body comprises a free edge and a fixed edge which are distributed on the two opposite sides in the longitudinal direction; the valve leaflets are fixed to the support through the fixing edges of the valve leaflets, and the free edges of the valve leaflets are matched with one another to control a blood flow channel in the artificial heart valve. The lug pieces are arranged on the two transverse opposite sides of the body, the free edges and the fixed edges of the lug pieces intersect at the corresponding sides, and each lug piece is provided with a first bending part which is bent towards the transverse inner side of the body from the combination part of the lug piece and the body and is attached to the body to form a combination part of a double-layer structure; and the second bending part is bent from the tail end of the first bending part to the transverse outer side of the body. By improving the valve leaflet structure and the suture method, the sealing effect and safety of the valve leaflet are improved.

The invention belongs to the technical field of artificial heart, and discloses an artificial heart magnetic suspension blood pump motor system technology based on wireless energy supply. The system is composed of a data acquisition module, a control algorithm module and an execution module. The data acquisition module acquires information such as blood flow, blood pressure, temperature and energy through various sensors and transmits the information to the control algorithm module. The control algorithm module adopts a model prediction control algorithm and calculates optimal control parameters according to the collected information. The execution module comprises a magnetic suspension blood pump motor, and the rotating speed of the magnetic suspension blood pump motor is dynamically adjusted according to the control parameters to meet physiological needs of the patient. According to the magnetic suspension blood pump motor system based on wireless energy supply, the problems of friction, energy loss and heating are reduced, and the reliability of the system is improved. And through a wireless energy supply mode, the movement freedom degree of the patient is effectively improved, and the system stability and the service life are enhanced.