215 results about "Mechanical heart valve prosthesis" patented technology

The invention discloses an artificial heart valve near-physiological pulsation fluid external evaluation device and method, and relates to the technical field of heart valve testing.The artificial heart valve near-physiological pulsation fluid external evaluation device comprises a supporting frame, a driving unit, a tested valve installation unit and an artery and peripheral loop unit, the driving unit provides power for liquid flowing, and the tested valve installation unit is used for fixing an artificial heart valve; and a liquid volume assembly and a resistance assembly of the artery and peripheral loop unit can simulate the compliance and resistance of aorta blood vessels and peripheral artery blood vessels, so that the pressure waveform simulation of the systemic circulation loop is more accurate. On the basis of the air cavity, the elastic corrugated pipes with different frequency responses are arranged, the compliance and rebound resilience of the aorta are simulated, a device for rapidly replacing the tested valve is designed, and the mechanical property of the simulated human body aorta is adjusted by adjusting the parameters such as the output frequency and the vibration amplitude of the driving unit; real pressure and flow waveforms under different physiological / pathological conditions are simulated, and a more accurate and convenient detection environment is realized.

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 relates to an artificial heart valve and a transcatheter heart valve replacement system.The artificial heart valve comprises a valve support and an outer skirt part, the valve support is provided with an inflow end and an outflow end, and the valve support is sequentially provided with a plurality of grid sets arranged in the circumferential direction from the outflow end to the inflow end; wherein the grid group closest to the inflow end is suitable for being matched with the position below the annulus plane, and the size of a net opening of at least one non-end grid group matched with the annulus plane is larger than that of a net opening of at least one axially adjacent grid group; the outer skirt part covers the outer surface of the valve stent, the outer skirt part at least covers the two adjacent grid groups close to the inflow end, and the position, close to the inflow end, of the outer skirt part is configured to be of a structure with the thickness gradually increased in the direction from the outflow end to the inflow end.

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 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 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 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 invention discloses an intelligent artificial heart valve integrated with pressure sensing, which comprises an implantation end and a body surface relay patch, the implantation end comprises a stent valve main body, a valve crossing pressure sensor pair, a microelectronic module and a flexible circuit, and the stent valve main body comprises a valve frame and a valve leaflet. The transvalvular pressure sensor pair comprises a first pressure sensor fixed to the ventricular proximal side of the stent valve body and a second pressure sensor fixed to the ventricular distal side of the stent valve body, leads of the pressure sensors are electrically connected with the microelectronic module through a flexible circuit, and the flexible circuit comprises a planar spiral coil; the plane spiral coil is electrically connected with the microelectronic module, the body surface relay patch comprises an external read-write coil, the external read-write coil transmits energy to the plane spiral coil, and the cross-lobe pressure sensor sends sensed data to the external read-write coil through the plane spiral coil. According to the invention, abnormal early warning can be realized, the treatment lagging is shortened, and the complication cost is reduced.

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.

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 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.

A method and an assembly for attaching a radiopaque marker to an attachment member of an artificial valve are disclosed. As an example, an artificial heart valve can include a frame including struts forming cells of the frame, at least one commissure comprising an attachment member and commissure tabs of two adjacent valve leaflets coupled thereto, an attachment member disposed across the cells of the frame and attached to the struts defining the cells, and a radiopaque marker suspended within the cell and suspended relative to the attachment member by suture threads. The suture threads extend from a first portion of the attachment member, through one or more openings of the marker, to a second portion of the attachment member, and the suture threads form two knots at the second portion on opposite sides of the marker such that the suture threads form an X-pattern that does not cross through the marker and across the attachment member.

The application discloses a valve holder, an assembly and a valve loading system for delivering a prosthetic heart valve, wherein the valve holder for delivering a prosthetic heart valve comprises a connecting seat and at least one holding arm distributed on the outer periphery of the connecting seat, the at least one holding arm has a positioning structure at the distal end thereof, which matches the outflow side of the prosthetic heart valve; the at least one holding arm is provided with a frame for placing a binding wire for binding the prosthetic heart valve, the frame has a wire passing path and a wire cutting port corresponding to the wire passing path, and the wire passing path allows a wire segment of the binding wire extending along the wire passing path to be suspended. The optimized arrangement of the valve holder, the assembly and the system of the application avoids the interference of the valve holder with the holding, positioning and releasing process of the prosthetic heart valve, meanwhile, provides a structural basis for the arrangement of the surrounding matching components, optimizes the operation experience of medical staff and improves the treatment effect.

Systems and methods for reducing vibrations perceived by a human due to an artificial heart valve include a vest that is wearable around a torso of the human, a plurality of sensors mounted to the vest, a plurality of vibration-generating actuators mounted to the vest, and a controller. The plurality of sensors detects vibrations in the human generated by the artificial heart valve. The controller is operable to receive signals representing the detected vibrations from the plurality of sensors, and is operable to produce anti-vibration signals that substantially attenuate the detected vibrations. A first sensor of the plurality of sensors is located near a first vibration-generating actuator of the plurality of vibration-generating actuators to form a sensor / actuator set. In the sensor / actuator set, the anti-vibration signals generated by the controller for the first vibration-generating actuator correspond to the vibrations detected by the first sensor.

The present invention provides a delivery system for an artificial valve, comprising an outer tube, an inner tube, an inflatable balloon, a first stopper and a second stopper. Both the first stopper and the second stopper include a fixing portion and a stopping portion. The stopping portion is a circumferentially closed annular structure. The fixing portion is connected to the inner tube. A first fluid passage or a second fluid passage is provided on the side wall of the first stopper; a first fluid passage is provided on the side wall of the second stopper; the first fluid passage axially penetrates through the stopping portion in the inner tube; the second fluid passage axially penetrates from one end of the stopping portion of the first stopper away from the fixing portion to the end of its fixing portion away from the stopping portion in the inner tube; the ends of the two stopping portions can axially limit the artificial valve. The present invention can make the expansion medium flow more smoothly in the initial stage of the inflation of the inflatable balloon, which is beneficial to the rapid progress of interventional treatment and better prevents the axial displacement of the artificial valve during the inflation of the inflatable balloon.

This invention discloses a novel valve stent and artificial heart valve, belonging to the field of medical device technology. The valve stent has a hollow, symmetrical, mesh-like tubular structure, with a first layer of hexagonal mesh groups, a second layer of polygonal mesh groups, and a third layer of polygonal mesh groups arranged sequentially from the outflow end to the inflow end. The stent has a small overall mesh count and symmetrical structure, resulting in uniform deformation during compression and expansion. It exhibits excellent radial support and minimal expansion rebound, significantly reducing the risk of paravalvular leakage. While maintaining radial support, this invention can reduce the stent strut width to 0.2–0.4 mm, and the minimum outer diameter of the valve after compression can reach 2.5–4.5 mm. Simultaneously, the overall length change during stent compression and expansion is minimal, greatly improving the smoothness of vascular delivery and the accuracy of valve implantation positioning. This meets the clinical needs of transcatheter aortic valve replacement surgery, enhancing the safety and effectiveness of artificial heart valve implantation.

A medical device that is adapted for excising a valve leaflet portion of a valve leaflet from a heart valve includes an elongate shaft including a distal region and an inflatable balloon that is secured to the distal region and that is adapted to extend through the heart valve. The inflatable balloon has an outer surface and includes a deflated configuration and an inflated configuration. An electrocautery electrode is disposed relative to the inflatable balloon such that the electrocautery electrode is positioned to excise the valve leaflet portion when RF energy is applied to the electrocautery electrode and the inflatable balloon is in the inflated configuration. In some cases, the heart valve includes an artificial heart valve. In some cases, the valve leaflet includes an artificial valve leaflet.

The application discloses an artificial heart valve device, an interventional instrument conveying assembly and a control handle, wherein the interventional instrument conveying assembly comprises a lock seat provided with a locking part; a lock piece is located at the distal end side of the lock seat; the lock piece is movable relative to the lock seat and has a release position which is separated from the locking part and a locking position which is inserted into the locking part; a pull wire assembly has a working end at the distal end, and the working end is wound to the interventional instrument in a loaded state and cooperates with the lock piece, wherein the lock piece restricts the pull wire in the locking position and releases the pull wire in the release position. The technical scheme disclosed by the application realizes the whole process control of the artificial heart valve stent through the guide part, especially the threading ring, meanwhile, the setting mode and the extension shape of the guide part can reduce the influence of the self-expanding characteristics of the artificial heart valve stent on the recovery of the artificial heart valve stent. The operation experience of medical staff is improved, and the treatment effect is improved.

The present invention relates to an implantable artificial device, such as an artificial heart valve, and to a mounting configuration and method for attaching a soft component, such as a valve leaflet or skirt, to the frame of such an artificial valve. [Solution] The valve leaflets are connected to the struts of the frame via primary sutures, which are passed in an in-and-out pattern along the cusp end portion of the valve leaflets, and the secondary sutures are passed around the struts through the primary sutures and have a plurality of self-tightening structures configured to contract on the struts under tension.