Left ventricular implant and left ventricular repair system

Abstract

The application provides a left ventricular implant and a left ventricular repair system. The left ventricular implant comprises a filling member arranged at a proximal end and a support member arranged at a distal end for supporting the filling member. The filling member comprises a filling body and a stent arranged in the filling body. When the heart contracts, the filling body and the stent are extruded, the stent is deformed, and the filling body is driven to move towards the proximal end. The unique stent structure cooperates to drive the filling body to move only towards the proximal end, and the movement direction is the same as the ejection direction, so that the proximal end of the filling body generates an additional force along the vertical axis direction to the blood flow ejected from the left ventricle to the aorta. While achieving the controlled movement direction of the proximal end of the filling body, the left ventricular pressure can be further increased. Therefore, the heart pumping function is enhanced, the physiological function of the diseased heart is improved, and sufficient blood flow is provided to meet the needs of the body.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, and relates to cardiac treatment devices, and more particularly to a left ventricular implant and a left ventricular repair system. Background Technology

[0002] Studies have shown that many patients experience left ventricular enlargement after a heart attack, which leads to a decrease in cardiac output and subsequently causes symptoms of heart failure such as shortness of breath. Heart failure is a common heart disease that prevents the heart from providing enough blood flow to meet the body's needs.

[0003] Currently, left ventricular volume reduction surgery is a treatment technique used to isolate damaged myocardium. By separating the non-functional portion of the heart from the healthy, functional portion, it reduces the total volume of the left ventricle, restoring its shape and function. Especially for patients with post-myocardial infarction wall motion incoordination or ventricular aneurysm, isolating the ventricular cavity containing the inactivated myocardium can improve left ventricular geometry, reduce left ventricular volume, prevent cardiac enlargement, and decrease ventricular wall tension, thereby preventing further left ventricular remodeling.

[0004] Most existing left ventricular volume reduction devices are designed with a parachute-like structure. While they can improve cardiac function and increase ejection fraction, the improvement is not significant, falling far short of normal cardiac function. This is because, in commonly used parachute-structured volume reduction devices, the movement of the top of the device is uncontrolled during cardiac systole, when the heart pumps blood into the aorta. Besides movement in the same direction as ejection (from the left ventricle towards the aorta), movement occurs more often in the opposite direction, relatively increasing the left ventricular volume and thus reducing the volume reduction effect. Summary of the Invention

[0005] This invention provides a left ventricular implant and system thereof to solve the problems existing in the prior art.

[0006] A left ventricular implant includes a filler disposed proximally and a support disposed distally for supporting the filler. The filler includes a filler body and a stent disposed within the filler body. The filler is configured such that when the heart contracts, the filler body and the stent are compressed, and the stent deforms, thereby driving the filler body to move proximally.

[0007] The filling body has a vertical section with a height of 5mm-10mm and a diameter that is the maximum diameter of the filling body, which is 30-50mm.

[0008] The support is disposed inside the filling body between the proximal end and the distal end of the vertical section. The support includes a first central axis and multiple first skeletons. The first central axis is fixedly connected to the center of the proximal end of the filling body. The first skeletons extend radially from the first central axis to the distal end. One end of the first skeleton is connected to the first central axis, and the other end abuts against the interior of the vertical section of the filling body.

[0009] Each of the first skeletons includes an inclined segment, one end of which is connected to the first central axis. The inclined segment extends obliquely downward from the end connected to the first central axis and forms an angle greater than 90° with the first central axis.

[0010] The projected length of the inclined segment on the horizontal plane is equal to half of the maximum diameter. Each of the first skeletons also includes a supporting segment, which bends from the end of the inclined segment and extends vertically downward. When the vertical segment of the filling body and the supporting segment are compressed, the inclined segment deforms and arches towards the proximal end to drive the filling body to move towards the proximal end.

[0011] The supporting section has a first through hole, and a first anchor bar extends obliquely downward along the upper end face of the first through hole. The angle between the first anchor bar and the vertical plane where the first through hole is located is in the range of 20°-45°. The first anchor bar passes through the filling body anchor bar on the myocardium of the left ventricle.

[0012] The support member is connected to the far end of the filler. The support member includes a second central axis and multiple second skeletons extending radially from the second central axis. The second central axis is a hollow structure. Each second skeleton is bent toward the filler. The end of each second skeleton forms an angle with the vertical plane. The angle ranges from 20° to 45°.

[0013] Each of the second skeletons has a second through hole at its end, and a second anchor extends obliquely upward along the distal surface of the second through hole to form a second anchor. There is an angle between each second anchor and the plane where the end of the second skeleton is located, with the angle ranging from 20° to 45°. The second anchor is used to anchor to the myocardium of the left ventricle.

[0014] The left ventricular implant also includes a third anchor, which is located at 1 / 4 of the distance from the bottom of the distal end of the filling body. The third anchor includes a fixing section and an anchor section. The fixing section is fixed to the filling body, and the anchor section extends outward from the surface of the filling body in a U-shape and is used to anchor to the myocardium of the left ventricle.

[0015] A left ventricular repair system includes a left ventricular implant with the aforementioned structure and a delivery device. The delivery device includes a delivery sheath and a push rod passing through the delivery sheath. The push rod is detachably connected to the proximal end of the filler. The left ventricular implant is delivered to a predetermined position in the left ventricle via the delivery sheath and the push rod.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The left ventricular implant and left ventricular repair system provided by this invention firstly isolates the non-functional portion of the heart from the healthy, functional portion through the entire implant, reducing the volume of the left ventricle. Simultaneously, during cardiac contraction and pumping blood into the aorta, a unique stent structure collaboratively drives the implant to arch only towards the top of the left ventricle. Because the movement direction of the top of the implant is only the same as the ejection direction, the proximal end of the implant generates an additional force along the vertical axis towards the aorta on the blood flow ejected from the left ventricle. While controlling the movement direction of the top of the implant, it further increases the left ventricular pressure. This enhances the heart's pumping function, increases the ejection fraction, improves the physiological function of the diseased heart, and thus provides sufficient blood flow to meet the body's needs.

[0018] Attached Figures and Their Descriptions

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate some embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an overall schematic diagram of the left ventricular implant in some embodiments;

[0022] Figure 2 These are schematic diagrams of the filler structure in some embodiments;

[0023] Figure 3 These are schematic diagrams of the support structure in some embodiments;

[0024] Figure 4 These are schematic diagrams of the support structure in some embodiments;

[0025] Figure 5 and Figure 6 This is a schematic diagram of the filler structure in some alternative embodiments;

[0026] Figure 7 A schematic diagram of the specific structure of the third anchor spike in some alternative embodiments.

[0027] Figure 8 This is a schematic diagram of the state of the filling body and the support before they are compressed in some embodiments;

[0028] Figure 9 This is a schematic diagram showing the state of the filling body and the support after being compressed in some embodiments;

[0029] Figures 10-14 This is a schematic diagram of the implantation process of the left ventricular implant and its system in some embodiments. Detailed Implementation

[0030] For ease of description, the orientation closer to the operator is defined as proximal, and the orientation farther from the operator is defined as distal. Furthermore, the orientation closer to the normal ventricular cavity is defined as the top of the left ventricular implant, and the orientation closer to the bulging apex is defined as the bottom of the left ventricular implant. The length direction of the left ventricular implant during delivery is defined as axial, and the direction perpendicular to the axial direction is defined as radial.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on certain embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Throughout this specification, the terms "an embodiment," "an embodiment," "in another embodiment," or "in some embodiments" refer to including, in at least one embodiment, a specific reference element, structure, or feature related to that embodiment. Therefore, the phrases "in an embodiment," "in another embodiment," or "in some embodiments" appearing in different places throughout the specification do not necessarily all refer to the same embodiment. Furthermore, specific elements, structures, or features may be combined in one or more embodiments in any suitable manner.

[0033] The present invention provides a left ventricular implant 10 to better enhance the pumping function of the diseased heart, increase the ejection fraction, and thus further improve the physiological function of the diseased heart.

[0034] In some embodiments, combined with Figure 1As shown, a left ventricular implant 10 includes a filler 12 disposed at the proximal end J and a support 14 disposed at the distal end Y for supporting the filler 12. The filler 12 and the support 14 are connected and fixed by welding or bonding. The filler 12 mainly serves to isolate healthy tissue of the left ventricle (LV) from the ventricular aneurysm, reducing the volume of the diseased LV. Simultaneously, during cardiac contraction and pumping blood into the aorta, the filler 12's proximal end is controlled to arch only towards the top of the left ventricle. Since the movement direction of the top of the filler 12 is only the same as the blood ejection direction (i.e., the direction from the left ventricle to the aorta), the proximal end of the filler 12 generates an additional force along the vertical axis towards the aorta on the blood flow ejected from the left ventricle, thereby enhancing the pumping function of the diseased heart. The support 14 mainly serves to support and anchor the entire implant 10.

[0035] In some embodiments, combined with Figure 2 As shown, the filler 12 includes a filler body 120 and a stent 121 disposed within the filler body 120. The filler 12 is configured such that when the heart contracts, the filler body 120 and the stent 121 are compressed, the stent 121 deforms, thereby driving the filler body 120 to move proximally to J.

[0036] In some embodiments, the filling body 120 is woven from nickel-titanium alloy wire and is shaped like a heart, which conforms to the structure of the apex of the heart and can better fit the inner wall of the left ventricle (LV).

[0037] The heart-shaped spherical filling body 120 has a vertical segment 120a, the diameter of which is the maximum diameter of the filling body 120. The vertical segment 120a is used to attach and engage with the neck of the ventricular aneurysm, effectively fixing the filling body 120 in place; this is the location where the heart is primarily compressed during contraction. The filling body 120 is divided by the vertical segment 120a. The portion above the vertical segment 120a primarily interacts directly with blood flow to increase ejection fraction. The portion below the vertical segment 120a is used to effectively attach, engage, and fill the gaps in the ventricular aneurysm, reducing left ventricular volume.

[0038] Furthermore, based on the actual diameter of the ventricular aneurysm, the maximum diameter of the vertical segment 120a of the filling body 120 is set to 30mm-50mm, and the overall height of the filling body 120 ranges from 15mm-20mm. Among them, the height of the vertical segment 120a ranges from 5mm-10mm, which is used to attach and engage with the neck of the ventricular aneurysm to reduce the volume of the left ventricle.

[0039] In some embodiments, in order to better achieve the cooperation between the support 121 and the filling body 120, the support 121 is disposed inside the filling body 120 between the proximal end J and the distal end Y of the vertical segment 120a.

[0040] Combination Figure 3 As shown, the support 121 has an overall umbrella-shaped structure, including a first central shaft 1212 and multiple first skeletons 1214. The first central shaft 1212 is located at the center and is fixedly connected to the center of the proximal end J of the filling body 120. The first skeletons 1214 extend radially from the first central shaft 1212 to the distal end Y, with one end of the first skeleton 1214 connected to the first central shaft 1212 and the other end abutting against the interior of the vertical segment 120a of the filling body 120. The first central shaft 1212 is fixedly connected to the center of the proximal end J of the filling body 120 by a bolt head 122. Optionally, the relative fixed position of the three components is with the first central shaft 1212 inside, the filling body 120 in the middle, and the bolt head 122 outside. The first skeletons 1214 extend evenly below the first central shaft 1212. The distal end of the filling body 120 is also fixedly connected by a bolt head 122.

[0041] It should be noted that, since the vertical segment 120a of the filling body 120 is located within the normal left ventricle (LV), this portion is primarily subjected to compression by the ventricular wall during cardiac contraction. To facilitate the deformation of the stent 121 under compression and to better drive the filling body 120 to arch proximally towards the J, thereby enhancing pumping function, the maximum diameter of the first skeleton 1214 is determined based on the diameter of the vertical segment 120a of the filling body 120, and the two remain identical. Furthermore, the lowest point of the first skeleton 1214 must not be lower than the vertical segment 120a of the filling body 120.

[0042] In some embodiments, it is combined again Figure 3 As shown, each first frame 1214 includes an inclined section 1214a and a supporting section 1214b. One end of the inclined section 1214a is connected to the first central axis 1212, and the other end is connected to the vertical section 120a. To better provide an upward force to the distal end Y of the filling body 120, the inclined section 1214a of each frame in the first frame 1214 extends obliquely downward from the end connected to the first central axis 1212, forming an angle greater than 90° with the first central axis 1212. Preferably, the angle between the inclined section 1214a and the central axis is set to a range of 95°-100°.

[0043] To ensure that the maximum diameter of the support 121 is consistent with the diameter of the vertical segment 120a of the filling body 120, the supporting segment 1214b is formed by bending from the end of the inclined segment 1214a and extending vertically downward, and the projected length of the inclined segment 1214a in the horizontal plane is equal to half of the maximum diameter. When the vertical segment 120a and the supporting segment 1214b are compressed, the inclined segment 1214a deforms and arches towards the proximal end J, thereby driving the filling body 120 to move towards the proximal end J.

[0044] It should be noted that neither the inclined segment 1214a nor the supporting segment 1214b of the first skeleton 1214 is fixed to the filling body 120. The inclined segment 1214a is suspended inside the filling body 120, while the supporting segment 1214b is in close contact with the interior of the vertical segment 120a of the filling body 120. This allows the supporting segment 1214b to be directly and simultaneously compressed when the filling body 120 is compressed, thereby causing the entire stent 121 to work synergistically against the proximal J of the filling body 120. This generates an additional force along the vertical axis L pointing towards the aorta on the blood flow ejected from the left ventricle, thereby enhancing the heart's pumping function.

[0045] In some embodiments, to enhance the engagement and anchoring between the device and the neck of the ventricular aneurysm and prevent the entire device 10 from shifting, the supporting section 1214b of the first frame 1214 may be provided with a first anchor spike. Specifically, a first through hole 1214c is formed on the supporting section 1214b of the first frame 1214, and a first anchor spike 123 extends obliquely downward along the proximal end face 1214c1 of the first through hole 1214c. The angle between the first anchor spike 123 and the vertical plane containing the first through hole 1214c is in the range of 20°-45°. The first anchor spike 123 is used to penetrate the filling body 120 and anchor onto the myocardium of the left ventricle (LV). Optionally, the first through hole 1214c can be provided as a square hole, a round hole, or other irregularly shaped hole, as long as it can compress and accommodate the first anchor spike 123 during delivery and release and facilitate the first anchor spike 123 to penetrate the myocardium, thereby assisting in better anchoring of the entire device 10.

[0046] In some embodiments, the number of first skeletons 1214 may be set to a range of 3-6. Too few skeletons will prevent the supports 121 from creating a uniform circumferential compression effect on the interior of the filling body 120. Too many skeletons will increase the overall size of the supports 121, making subsequent shrinkage and release inconvenient.

[0047] In addition, the filler 12 also includes a flow-blocking membrane 125, which is fitted inside the filler body 120 to block blood flow into the ventricular aneurysm and is mainly made of a highly biocompatible polymer material.

[0048] In some embodiments, combined with Figure 4As shown, the support member 14 is located below the filler member 12 and is connected to the distal end Y of the filler member 12. It is shaped like an inverted umbrella and is formed by cutting and shaping a nickel-titanium alloy tube, serving to support and anchor the entire device 10. The support member 14 includes a second central shaft 141 and multiple second skeletons 143 extending radially from the second central shaft 141. The second central shaft 141 is a hollow structure used to connect with the filler member 12. Each second skeleton 143 is bent towards the filler member 12, contacting the inner wall of the apex to support the entire device 10.

[0049] In some embodiments, to better conform to the myocardial wall, the end of each second skeleton 143 forms an angle with the vertical plane. To prevent the end of the second skeleton 143 from failing to fully conform to the ventricular wall due to a small angle, or from increasing the cardiac load due to an excessively large angle, the angle range is set to 20°-45°.

[0050] In some embodiments, each second skeleton 143 has a second through hole 145 at its end, and a second anchor 147 extends obliquely upward along the distal surface 145a of the second through hole. Each second anchor 147 has an angle between itself and the vertical plane containing the end of the second skeleton 143, with the angle ranging from 20° to 45°. The second anchor 147 is used to anchor itself to the myocardium of the left ventricle (LV). With this configuration, when the second anchor 147 pierces the myocardial wall at the apex of the heart, the second skeleton 143 around the second through hole 145 conforms to the ventricular wall, providing support for the second anchor 147 and preventing it from shifting during heartbeats, thus enhancing anchoring capability. Optionally, the second through hole 145 can also be a square hole, a round hole, or other irregularly shaped hole, as long as it can compress and accommodate the second anchor 147 during delivery and release, and facilitates the second anchor 147's insertion into the myocardium, thus assisting in better anchoring of the entire device 10.

[0051] In some embodiments, it is particularly emphasized that, to prevent insufficient support or the large size from affecting subsequent contraction and release, the number of second skeletons 143 and second anchors 147 is set to 3-6. To conform to the apex structure, the maximum diameter of the support member 14 does not exceed half the maximum diameter of the filler member 12.

[0052] In other embodiments, combined with Figure 5 and Figure 6 As shown, in order to better anchor the entire implant 10 and prevent the entire device from deflecting, in addition to providing the first anchor 123 in the abutment section 1214b of the first skeleton 1214, a third anchor 127 can also be provided at 1 / 4 of the distance from the distal end face of the filling body 120, so as to provide sufficient anchoring force to the distal part of the filling body 120.

[0053] Optionally, combined Figure 7 As shown, to better conform to the inverted conical shape and weaving direction of the distal portion of the filling body 120, the third anchor 127 is U-shaped overall, including a fixing section 127a and an anchor section 127b. The fixing section 127a deflects inward into the U-shape and is fixed to the distal portion of the filling body 120 by a steel sleeve, helping to stabilize the entire implant 10. The direction of the fixing section 127a is consistent with the weaving extension direction of the nickel-titanium wire at the fixing position. The anchor section 127b extends outward from the surface of the filling body 120 in a U-shape, with a conical tail end, for anchoring to the myocardium of the left ventricle (LV).

[0054] It is particularly important to emphasize that the filling body 120, the support 14, and all anchors (123, 127, 147) are all made of a lightweight nickel-titanium alloy material with superelasticity and shape memory function. On the one hand, this facilitates shaping and transportation, and the lightweight nature of the nickel-titanium alloy will not place excessive additional load on the heart. On the other hand, nickel-titanium metal has a certain strength, is not easily broken, and will deform under external force. After the external force is removed, it will recover or tend to recover its original shape and position due to its elasticity or shape memory ability.

[0055] Combination Figure 8-9 As shown, this briefly illustrates the changes of the filler 12 before and after being compressed after the entire implant 10 is delivered and released, wherein the support 14 remains stationary before and after being compressed.

[0056] Specifically, in the initial state, the angle between the inclined segment 1214a of the first skeleton 1214 and the first central axis 1212 is greater than 90°. When the heart contracts, the vertical segment 120a of the filling body 120 and the supporting segment 1214b of the first skeleton 1214 are simultaneously compressed in the direction R. During the compression process, the length of the inclined segment 1214a in the first skeleton 1214 remains unchanged, but it will deform and transmit the force to the first central axis 1212. This causes the first central axis 1212 to move along the vertical axis L in the direction S, and only to arch towards the proximal end J. As a result, the angle between the inclined segment 1214a and the first central axis 1212 gradually increases during the movement in the direction S. At the same time, the proximal end J of the filling body 120 is driven to move only along the vertical axis L in the direction S, arching towards the proximal end J of the filling body 120 without lateral deviation.

[0057] It is important to emphasize that the supporting segment 1214b does not move vertically along the vertical axis L, and its contact position with the interior of the vertical segment 120a of the filling body 120 remains unchanged. When the heart contracts and pumps blood into the aorta, the stent 121 moves proximally to the top of the filling body 120 in conjunction with the stent 121. Compared to existing filling devices where the direction of top movement is uncontrolled, the movement direction of the proximal J of the filling body 120 in this invention is only the same as the direction of blood ejection, which is the direction from the left ventricle to the aorta. The proximal J of the filling body 120 exerts an additional force along the vertical axis L towards the aorta on the blood flow ejected from the left ventricle, thereby increasing the left ventricular pressure while reducing the left ventricular volume and controlling the direction of movement of the filling member 12, thus enhancing the heart's pumping function.

[0058] A left ventricular repair 1 includes a left ventricular implant 10 with the aforementioned structure and a delivery device 20. The delivery device 20 includes a delivery sheath 22 and a push rod 24 passing through the delivery sheath 22. The push rod 24 is detachably connected to the proximal end of the filler 12. The left ventricular implant 10 is delivered to a predetermined position in the left ventricle through the delivery sheath 22 and the push rod 24.

[0059] For ease of understanding, combined with Figures 10-14 As shown, the implantation process of the left ventricular implant 10 in this invention is briefly described as follows:

[0060] Step 1: Establish access using a transcatheter aortic arch approach, and advance the delivery sheath 22 to near the apex of the heart, such as... Figure 10 As shown.

[0061] Step 2: Connect the implant 10 to the push rod 24 in the delivery device 10, and slowly deliver the implant 10 to the ventricle along the delivery sheath 22 in the delivery device 10. At this time, the filler 12 and the support 14 are completely straightened and retracted within the delivery sheath 22. Figure 11 As shown.

[0062] Step 3: Next, release the support member 14 of the implant 10 close to the apex of the heart. After release, the support member 14 automatically opens into an inverted umbrella shape, and the second anchor 147 of the support member 14 also automatically pops out from the second through hole 145 to form an angle. At this time, the filler 12 is not released and is completely retracted in the delivery sheath 22, as... Figure 12 As shown.

[0063] Step 4: Adjust the position of the support 14 so that all the second anchors 147 are fully inserted into the myocardium. Simultaneously, after the second skeleton 143 is completely against the ventricular wall, fix the push rod 24 and slowly withdraw the delivery sheath 22 until the filling material 12 is completely released. After release, the filling material 12 opens into a heart-shaped sphere, the support 121 also opens into an umbrella shape, and the first anchors 123 on the support 121 automatically pop out to form an angle, passing through the filling body 120 and anchoring into the myocardium of the left ventricle (LV). Figure 13 As shown.

[0064] Step 5: After confirming that the vertical section 120a of the filler 12 is completely flush with the inner wall of the endocardium and there are no gaps between them, unscrew the push rod 24 and remove the delivery sheath 22. Figure 14 As shown.

[0065] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0066] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

Claims

1. A left ventricular implant, characterized in that The left ventricular implant comprises a filling member arranged at a proximal end and a support member arranged at a distal end for supporting the filling member, the filling member comprises a filling body and a stent arranged in the filling body, the filling body has a vertical section, the stent is arranged in the interior between the proximal end of the filling body and the distal end of the vertical section, the stent comprises a first central shaft and a plurality of first skeletons, the first central shaft is fixedly connected with the center of the proximal end of the filling body, the first skeletons extend radially from the first central shaft and extend in the distal direction; the filling member is configured such that when the heart contracts, the filling body and the stent are extruded, the stent deforms to arch up in the proximal direction, thereby driving the filling body to move in the proximal direction.

2. The left ventricular implant of claim 1, wherein The diameter of the vertical section is the maximum diameter of the filling body, and the maximum diameter is 30-50 mm.

3. The left ventricular implant of claim 2, wherein, One end of the first skeleton is connected with the first central shaft, and the other end abuts against the interior of the vertical section of the filling body.

4. The left ventricular implant of claim 3, wherein, Each of the first skeletons comprises an inclined section, one end of the inclined section is connected with the first central shaft, the inclined section extends obliquely downward from the end connected with the first central shaft, and forms an included angle greater than 90° with the first central shaft.

5. The left ventricular implant of claim 4, wherein, The projection length of the inclined section on the horizontal plane is equal to half of the maximum diameter, each of the first skeletons further comprises an abutting section, the abutting section is bent from the end of the inclined section and extends vertically downward, when the vertical section of the filling body and the abutting section are extruded, the inclined section deforms to arch up in the proximal direction, so as to drive the filling body to move in the proximal direction.

6. The left ventricular implant of claim 5, wherein, A first through hole is formed on the abutting section, a first anchor is formed by extending obliquely downward along the upper end surface of the first through hole, the included angle between the first anchor and the vertical plane where the first through hole is located ranges from 20° to 45°, and the first anchor is anchored on the myocardium of the left ventricle through the filling body.

7. The left ventricular implant of claim 1, wherein, The support member is connected with the distal end of the filling member, the support member comprises a second central shaft and a plurality of second skeletons extending radially from the second central shaft, the second central shaft is a hollow structure, each of the second skeletons is bent towards the filling member, and the end of each of the second skeletons forms an included angle with the vertical plane, and the included angle ranges from 20° to 45°.

8. The left ventricular implant of claim 7, wherein, The end of each of the second skeletons is provided with a second through hole, a second anchor is formed by extending obliquely upward along the distal end surface of the second through hole, each of the second anchors forms an included angle with the plane where the end of the second skeleton is located, and the included angle ranges from 20° to 45°, and the second anchor is used to anchor on the myocardium of the left ventricle.

9. The left ventricular implant of claim 1, wherein, The left ventricular implant further comprises a third anchor, the third anchor is arranged at a distance of 1 / 4 from the bottom surface of the distal end of the filling body, the third anchor comprises a fixed section and an anchor section, the fixed section is fixed with the filling body, and the anchor section is bent outwardly from the surface of the filling body in a U shape and is used to anchor on the myocardium of the left ventricle.

10. A left ventricular repair system comprising the left ventricular implant of any one of claims 1-9 and a delivery device, the delivery device comprising a delivery sheath and a push rod passing through the delivery sheath, the push rod being removably connected to the proximal end of the filler, the left ventricular implant being delivered to a predetermined location in the left ventricle by the delivery sheath and push rod.

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