A nailing control component and conveying system

Abstract

The present invention discloses a nailing control assembly and a delivery system, which relates to the field of valve repair technology. The scheme includes: a housing, a bending tube control device, a spring tube control device, and an anchor control device; the housing includes a first shell and a second shell, and the second shell can move axially relative to the first shell; the bending tube control device is provided with a nailing bending tube, which can move axially and rotate circumferentially relative to the bending tube control device, and the bending tube control device is used to control the bending angle of the nailing bending tube; the spring tube control device is provided with a nailing spring tube, which can move axially and rotate circumferentially relative to the spring tube control device; the anchor control device is provided with an anchor steel cable, which can move axially and rotate circumferentially relative to the anchor control device. In this way, the device of the present invention has multiple driving modes and can control each tube individually, achieving more precise control, thereby improving surgical accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of valve repair, and in particular to a nailing control component and a delivery system. Background Art

[0002] Heart valves are checkpoints between different cardiovascular structures, and they can only open and close in a specific direction, ensuring that blood can only flow forward and not backward. The mitral valve is a "one-way valve" between the left atrium and the left ventricle, ensuring that blood circulation flows in a directional manner from the left atrium to the left ventricle and that a certain blood volume is passed through. Blood flows from the left atrium through the mitral valve into the left ventricle, and is then pumped into the aorta by the left ventricle to flow throughout the body. The mitral valve opens, allowing blood to flow from the left atrium into the left ventricle; it then closes, ensuring that blood does not flow back into the left atrium when the left ventricle contracts to pump blood into the aorta. If the mitral valve is diseased and cannot close fully, blood will flow back into the left atrium when the left ventricle contracts. This is mitral regurgitation.

[0003] Mitral regurgitation is the most common heart valve disease worldwide. Regurgitation reduces blood flow to various parts of the body. To compensate, the heart tries to pump blood more forcefully, increasing the workload. Patients with severe mitral regurgitation can experience a variety of debilitating symptoms, such as shortness of breath, palpitations, dizziness, and fatigue. These patients face the risk of poor quality of life, significant limitations in activity, repeated hospitalizations for heart failure, and increased mortality. Chronic severe mitral regurgitation is often accompanied by heart failure and can lead to death if left untreated.

[0004] Currently, in valve repair surgery, the control mode of the device that controls the anchor nailing into the valve annulus tissue is relatively simple and can only achieve simple movement and rotation. Therefore, when nailing, the doctor mostly relies on his experience to determine the screwing force. The device itself cannot provide other assistance or reference for the doctor's locking operation, making it inconvenient to use. Summary of the Invention

[0005] The purpose of the present invention is to solve at least one problem in the above-mentioned background technology, and to provide a nail driving control assembly and a delivery system.

[0006] To achieve the above-mentioned purpose, a nailing control assembly of the present invention includes:

[0007] Shell, bending tube control device, spring tube control device and anchor control device;

[0008] The housing includes a first shell and a second shell, the second shell being axially movable relative to the first shell;

[0009] The bending tube control device is provided with an axially penetrating nailing bending tube, and the nailing bending tube can move axially and rotate circumferentially relative to the bending tube control device. The bending tube control device is used to control the bending angle of the nailing bending tube;

[0010] The spring tube control device is provided with an axially penetrating nail spring tube, the nail spring tube is arranged in the nail bending adjustment tube, and the nail spring tube can move axially and rotate circumferentially relative to the spring tube control device;

[0011] An axially penetrating anchor cable is provided in the anchor control device, and the anchor cable is provided in the nailing spring tube. The anchor cable can move axially and rotate circumferentially relative to the anchor control device so that the anchor at the end of the anchor cable is nailed into the valve ring tissue.

[0012] Preferably, the bending pipe control device includes a first drive structure and a second drive structure;

[0013] The first driving structure is axially inserted into the housing, and the second driving structure penetrates the side wall of the housing;

[0014] The first driving structure is axially movable and circumferentially rotatable relative to the housing, and the second driving structure is engaged with the first driving structure via gears, so that the first driving structure moves axially in steps.

[0015] Preferably, a first rotating member and a second rotating member are provided in the first driving structure, and a first sliding groove is provided on the side wall of the first driving structure;

[0016] The first rotating member includes a first rotating column that can rotate in a circumferential direction, and the second rotating member is threadedly connected to the first rotating column;

[0017] A first slider is provided on a circumferential side wall of the second rotating member. The first slider is located in the first sliding groove. The first sliding groove is used to convert the circumferential rotation of the first rotating column into the axial movement of the second rotating member through the first slider.

[0018] The second rotating member is fixedly connected to the guide wire in the nailing and bending adjustment tube, and the second rotating member pulls the guide wire through axial movement to bend the nailing and bending adjustment tube.

[0019] Preferably, the spring tube control device includes a first fixed member and a third rotating member;

[0020] The first fixing member is fixedly connected to the bending pipe control device, the third rotating member is inserted into the first fixing member, and the third rotating member is fixedly connected to the nailing spring tube;

[0021] The third rotating member can move axially and rotate circumferentially relative to the first fixed member;

[0022] A first limiting hole is provided on the side wall of the first fixing member, and the first locking member is inserted into the first limiting hole to abut against the third rotating member to limit the movement of the nail spring tube.

[0023] Preferably, the anchor control device comprises a second fixing member and a fourth rotating member;

[0024] The second fixing member is fixedly connected to the spring tube control device, the fourth rotating member is inserted into the second fixing member, and the fourth rotating member is fixedly connected to the anchor cable;

[0025] The fourth rotating member is axially movable and circumferentially rotatable relative to the second fixed member.

[0026] Preferably, a first limiting groove and at least one second limiting groove are provided on the side wall of the second fixing member;

[0027] The first limiting groove passes through the second fixing member, the second limiting groove is connected to the first limiting groove, the first limiting groove extends axially, and the second limiting groove extends circumferentially;

[0028] A second limiting member is radially arranged to penetrate the side wall of the fourth rotating member. When the end of the second limiting member is located in the second limiting groove, the fourth rotating member can rotate circumferentially but cannot move axially. When the second limiting member is located in the first limiting groove, the fourth rotating member can move axially but cannot rotate circumferentially.

[0029] Preferably, a second locking member is provided on the side wall of the second housing, and the second locking member is inserted into the second housing and abuts against the first driving structure, so that the first driving structure and the second housing are fixedly connected;

[0030] A second sliding groove is provided on the side wall of the first housing, and a third limiting hole is provided on the side wall of the second housing. A third locking member can be inserted into the second sliding groove and located in the third limiting hole. The third locking member is slidably connected to the second sliding groove to enable the second housing to move axially relative to the first housing.

[0031] The third locking member is threadedly connected to the third limiting hole to fix the first shell and the second shell.

[0032] To achieve the above-mentioned purpose, a nail driving control assembly of the present invention further includes a thread locker control device;

[0033] The wire lock control device is fixedly connected to the housing. A wire lock spring tube axially penetrates the wire lock control device. The wire lock control device is used to control the wire lock anchor in the wire lock spring tube.

[0034] Preferably, an observation window is provided on the housing, and the nailing and bending tube and the wire locking spring tube pass through the observation window, and the observation window is made of a transparent material.

[0035] To achieve the above object, the present invention further provides a delivery system, comprising a nailing control assembly as described above, and further comprising a sheath bending adjustment assembly and a thread lock control assembly;

[0036] One end of the thread lock control assembly is connected to the sheath tube bending adjustment assembly, and the other end is connected to the nailing control assembly. The thread lock spring tube in the thread lock control assembly and the nailing bending adjustment tube in the nailing control assembly extend into the sheath tube in the sheath tube bending adjustment assembly.

[0037] The sheath tube bending adjustment component is used to adjust the bending angle of the sheath tube, and the wire lock control component is used to control the wire lock to lock the anchor nail.

[0038] Based on this, the beneficial effects of the present invention are:

[0039] 1. The present invention's nailing control assembly includes a bending tube control device, a spring tube control device, and an anchor control device. The bending tube control device controls the axial movement, circumferential rotation, and bending of the nailing bending tube within it; the spring tube control device controls the axial movement and circumferential rotation of the nailing spring tube within it; and the anchor control device controls the axial movement and circumferential rotation of the anchor cable within it. Through multiple drive modes, each component independently controls the pipeline, making it more convenient for surgeons to use, more precise, and improving surgical safety.

[0040] 2. Provide a delivery system, including a nailing control component, a sheath bending adjustment component, and a wire locking control component, which can realize the operations of anchor nailing and locking the anchor in valve repair surgery. The multiple components are detachable from each other and can also be quickly assembled, which is convenient for installation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0042] Figure 1 A schematic diagram schematically illustrates the structure of a nailing control assembly according to one embodiment of the present invention;

[0043] Figure 2A schematic diagram schematically showing the coordination of the first drive structure and the second drive structure in one embodiment of the present invention;

[0044] Figure 3 A schematic diagram schematically illustrates the structure of a spring tube control device and an anchor control device according to an embodiment of the present invention;

[0045] Figure 4 A schematic diagram schematically illustrates the structure of a conveying system according to one embodiment of the present invention;

[0046] Description of the accompanying drawings: housing 10, first shell 101, second slide 1011, third locking member 1012, third slide 1013, protrusion 1014, notch 1015, second shell 102, second locking member 1021, third limiting hole 1022, second limiting block 1023, observation window 103, bending pipe control device 20, nailing bending pipe 201, first driving structure 202, circumferential rack 2021, first rotating member 2022, first rotating column 20221, second rotating member 2023, first slider 20231, first slide 20 24, second drive structure 203, rotating shaft 2031, second rotating column 2032, gear 2033, first handle 2034, spring tube control device 30, nailing spring tube 301, first fixing member 302, third rotating member 303, first locking member 304, anchor control device 40, anchor steel cable 401, second fixing member 402, first limiting groove 4021, second limiting groove 4022, fourth rotating member 403, wire lock control device 50, sheath bending adjustment assembly 60, third shell 601, first control member 602, wire lock control assembly 70. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0048] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "an", "the" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0049] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of the present invention are described from the perspectives shown in the accompanying drawings and should not be construed as limiting the embodiments of the present invention. Furthermore, in the context, it should be understood that when an element is referred to as being formed "on" or "under" another element, it can be formed not only directly "on" or "under" the other element, but also indirectly "on" or "under" the other element through an intermediate element.

[0050] Figure 1 A schematic diagram showing the structure of a nailing control component according to an embodiment of the present invention is shown as follows: Figure 1 As shown, a nailing control assembly of the present invention includes:

[0051] Housing 10, bending tube control device 20, spring tube control device 30 and anchor control device 40;

[0052] The housing 10 includes a first housing 101 and a second housing 102 , wherein the second housing 102 is axially movable relative to the first housing 101 ;

[0053] The bending pipe control device 20 is provided with an axially penetrating nailing and bending pipe 201. The nailing and bending pipe 201 can move axially and rotate circumferentially relative to the bending pipe control device 20. The bending pipe control device 20 is used to control the bending angle of the nailing and bending pipe.

[0054] The spring tube control device 30 is provided with an axially penetrating nail spring tube 301, which is arranged in the nail bending adjustment tube 201. The nail spring tube 301 can move axially and rotate circumferentially relative to the spring tube control device 30.

[0055] An axially penetrating anchor cable 401 is provided in the anchor control device 40. The anchor cable 401 is provided in the nailing spring tube 301. The anchor cable 401 can move axially and rotate circumferentially relative to the anchor control device 40 so that the anchor at the end of the anchor cable 401 is nailed into the valve ring tissue.

[0056] With such a configuration, the bending tube control device 20 can control the axial movement, circumferential rotation and bending of the nailing bending tube 201 therein, the spring tube control device 30 can control the axial movement and circumferential rotation of the nailing spring tube 301 therein, and the anchor control device 40 can control the axial movement and circumferential rotation of the anchor steel cable 401 therein. Through multiple driving modes, each component controls the pipeline separately, making it more convenient for doctors to use, more precise in control, and improving the safety of surgery.

[0057] Further, Figure 2 A schematic diagram showing the coordination of the first drive structure and the second drive structure in one embodiment of the present invention is shown as follows: Figure 2 As shown:

[0058] The pipe bending control device 20 includes a first driving structure 202 and a second driving structure 203;

[0059] The first driving structure 202 is axially inserted into the housing 10 , and the second driving structure 203 penetrates the side wall of the housing 10 ;

[0060] The first driving structure 202 can move axially and rotate circumferentially relative to the housing 10 , and the second driving structure 203 is engaged with the first driving structure 202 through gears, so that the first driving structure 202 can move axially in steps.

[0061] Specifically, the second driving structure 203 includes a rotating shaft 2031, a second rotating column 2032, and a gear 2033. The rotating shaft 2031 circumferentially penetrates the housing 10, with the end of the rotating shaft 2031 exposed from the housing 10 and supported by the housing 10. The second rotating column 2032 is sleeved on the rotating shaft 2031 and is rotatably connected to the rotating shaft 2031. The ends of the second rotating column 2032 are also exposed from the housing 10. The gear 2033 is sleeved on the second rotating column 2032 and is fixedly connected to the second rotating column 2032.

[0062] The second driving structure 203 further includes a first handle 2034, which is disposed on a side wall of the housing 10 and is rotatably connected thereto. A rotating shaft 2031 and a second rotating column 2032 are inserted into the first handle 2034. The rotating shaft 2031 is movably connected to the first handle 2034, and the second rotating column 2032 is fixedly connected to the first handle 2034. When the first handle 2034 is driven to rotate, the second rotating column 2032 is driven to rotate synchronously, thereby driving the gear 2033 to rotate synchronously.

[0063] A circumferential rack 2021 is provided on the circumferential side wall of the first driving structure 202, and the circumferential rack 2021 is meshed and connected with the gear 2033. When the gear 2033 rotates, it drives the first driving structure 202 to move axially through the connection with the circumferential rack 2021, thereby realizing the axial stepping movement of the nailing and bending tube 201.

[0064] In this way, through the mating connection between the first drive structure 202 and the second drive structure 203, when the two are engaged, when the second drive structure 203 is controlled to rotate, the axial movement of the first drive structure 202 can be controlled through the meshing connection. At the same time, when the first drive structure 202 moves axially or rotates circumferentially, the second drive structure 203 will not change position in the axial or radial direction, which solves the disadvantage that when one of the two is connected by threaded mating, the position of the other must change when one moves.

[0065] Further, if Figure 2As shown, a first rotating member 2022 and a second rotating member 2023 are provided in the first driving structure 202, and a first sliding groove 2024 is provided on the side wall of the first driving structure 202;

[0066] The first rotating member 2022 includes a first rotating column 20221 that can rotate in the circumferential direction, and the second rotating member 2023 is threadedly connected to the first rotating column 20221;

[0067] A first slider 20231 is provided on the circumferential side wall of the second rotating member 2023. The first slider 20231 is located in the first sliding groove 2024. The first sliding groove 2024 is used to convert the circumferential rotation of the first rotating column 20221 into the axial movement of the second rotating member 2023 via the first slider 20231.

[0068] The second rotating member 2023 is fixedly connected to the guide wire in the nailing and bending adjustment tube 201. The second rotating member 2023 pulls the guide wire through axial movement to adjust the nailing and bending adjustment tube.

[0069] In this way, the cooperative connection between the first slide groove 2024 and the first slider 20231 can convert the rotational movement of the first rotating member 2022 into the axial movement of the second rotating member 2023, and the second rotating member 2023 is fixedly connected to the guide wire, and then the guide wire is pulled through the axial movement of the second rotating member 2023 to realize the bending operation of the nailing and bending tube 201.

[0070] Further, Figure 3 A schematic diagram showing the structure of a spring tube control device and an anchor control device according to an embodiment of the present invention is shown as follows: Figure 3 As shown:

[0071] The spring tube control device 30 includes a first fixed member 302 and a third rotating member 303;

[0072] The first fixing member 302 is fixedly connected to the bending pipe control device 20, the third rotating member 303 is inserted into the first fixing member 302, and the third rotating member 303 is fixedly connected to the nailing spring tube 301;

[0073] The third rotating member 303 can move axially and rotate circumferentially relative to the first fixed member 302;

[0074] A first limiting hole (not shown) is provided on the side wall of the first fixing member 302 . The first locking member 304 is inserted into the first limiting hole to abut against the third rotating member 303 to limit the movement of the nail spring tube 301 .

[0075] Specifically, the nailing spring tube 301 axially passes through the third rotating member 303 and the first fixed member 302, and is inserted into the nailing bending tube 201. The third rotating member 303 is fixedly connected to the nailing spring tube 301, and the third rotating member 303 can move, thereby enabling the nailing spring tube 301 to achieve axial movement and circumferential rotation.

[0076] A first limiting hole is provided on the side wall of the first fixing member 302, and the first locking member 304 is threadedly connected to the first limiting block. By screwing in the first locking member 304, the first locking member 304 is brought into contact with the third rotating member 303, thereby limiting the axial movement and circumferential rotation of the third rotating member 303, thereby achieving the fixation of the nailing spring tube 301 and the first fixing member 302.

[0077] Furthermore, if Figure 3 As shown:

[0078] The anchor control device 40 includes a second fixing member 402 and a fourth rotating member 403;

[0079] The second fixing member 402 is fixedly connected to the spring tube control device 30 , the fourth rotating member 403 is inserted into the second fixing member 402 , and the fourth rotating member 403 is fixedly connected to the anchor cable 401 ;

[0080] The fourth rotating member 403 can move axially and rotate circumferentially relative to the second fixed member 402 .

[0081] Specifically, the anchor cable 401 axially passes through the fourth rotating member 403 and the second fixed member 402, and extends into the nailing spring tube 301. The end of the anchor cable 401 is detachably connected to the anchor, which is movably connected to the second fixed member 402 through the fourth rotating member 403, and the fourth rotating member 403 is fixedly connected to the anchor cable. The rotation of the anchor cable 401 is then achieved by controlling the rotation of the fourth rotating member 403, thereby achieving the anchor nailing into the valve ring tissue.

[0082] Furthermore, if Figure 3 As shown, a first limiting groove 4021 and at least one second limiting groove 4022 are provided on the side wall of the second fixing member 402;

[0083] The first limiting groove 4021 passes through the second fixing member 402 , and the second limiting groove 4022 is connected to the first limiting groove 4021 . The first limiting groove 4021 extends axially, and the second limiting groove 4022 extends circumferentially.

[0084] A second limiting member (not shown in the figure) is radially provided on the side wall of the fourth rotating member 403. When the end of the second limiting member is located in the second limiting groove 4022, the fourth rotating member 403 can rotate circumferentially but cannot move axially. When the second limiting member is located in the first limiting groove 4021, the fourth rotating member 403 can move axially but cannot rotate circumferentially.

[0085] Specifically, at least one second limiting groove 4022 is provided. In the solution of the present invention, two second limiting grooves 4022 are provided, and the circumferential extension directions of the two second limiting grooves 4022 are opposite. In this way, the two second limiting grooves 4022 are redundantly provided. When one of the second limiting grooves 4022 fails, the axial movement of the anchor cable 401 can still be limited by rotating the second limiting member into the other second limiting groove 4022.

[0086] At the same time, when the fourth rotating member 403 is inserted into the second fixing member 402 and the second limiting member is located in the second limiting groove 4022, the distance between the end of the fourth rotating member 403 close to the second fixing member 402 and the second fixing member 402 is about 6 mm. When the fourth rotating member 403 is rotated so that the second limiting member is aligned with the first limiting groove 4021, the fourth rotating member 403 can move axially. When the fourth rotating member 403 moves axially in the direction close to the second fixing member 402, if the fourth rotating member 403 moves the spacing distance, the fourth rotating member 403 will abut the second fixing member 402, which can prevent the fourth rotating member 403 from moving excessively. The setting of this distance can prevent the anchor at the end of the anchor cable 401 from excessively penetrating into the valve ring tissue to pierce the inner wall of the heart, thereby preventing cardiac bleeding from affecting the safety of the operation.

[0087] Further, if Figure 1 As shown, a second locking member 1021 is provided on the side wall of the second housing 102. The second locking member 1021 is inserted into the second housing 102 and abuts against the first driving structure 202, so that the first driving structure 202 and the second housing 102 are fixedly connected;

[0088] A second sliding groove 1011 is provided on the side wall of the first housing 101, and a third limiting hole 1022 is provided on the side wall of the second housing 102. A third locking member 1012 can be inserted into the second sliding groove 1011 and located in the third limiting hole 1022. The third locking member 1012 is slidably connected to the second sliding groove 1011 to enable the second housing 102 to move axially relative to the first housing 101.

[0089] The third locking member 1012 is threadedly connected to the third limiting hole 1022 to fix the first housing 101 and the second housing 102 .

[0090] Specifically, the second locking member 1021 is threadedly connected to the second shell 102. When the second locking member 1021 is screwed into the second shell 102 and abuts against the first drive structure 202, the first drive structure 202 is fixedly connected to the second shell 102. At this time, by sliding the second shell 102, the second shell 102 moves axially, thereby driving the first drive structure 202, the spring tube control device 30 and the anchor control device 40 to move axially synchronously, thereby realizing the control of the forward and backward movement of the entire pipeline.

[0091] When the second shell 102 is moved into place, since the third locking member 1012 is threadedly connected to the third limiting hole 1022, the third locking member 1012 can be controlled to rotate so that the third locking member 1012 abuts against and squeezes the first shell 101, thereby achieving a fixed connection between the first shell 101 and the second shell 102.

[0092] Furthermore, if Figure 1 As shown, a third slide groove 1013 is provided on the side wall of the first housing 101, a protrusion 1014 is provided on the inner wall of the third slide groove 1013, and notches 1015 are provided on both sides of the protrusion 1014. The notches 1015 extend a certain distance along the circumferential direction. A second limit block 1023 is provided on the side wall of the second housing 102, and the second limit block 1023 is provided corresponding to the third slide groove 1013;

[0093] When the second housing 102 is inserted into the first housing 101, the second limiting block 1023 is located in the third sliding groove 1013. When the second housing 102 moves axially relative to the first housing 101, the second limiting block 1023 moves in the third sliding groove 1013. When the second limiting block 1023 touches the protrusion 1014, the protrusion 1014 limits the movement of the second limiting block 1023, preventing the second housing 102 from moving further. The protrusion 1014 is arranged close to the edge of the first housing 101, thereby preventing the second housing 102 from sliding excessively out of the first housing 101.

[0094] At the same time, when the second shell 102 is inserted, the second limit block 1023 abuts the protrusion 1014. At this time, a greater force can be used to continue to push the second shell 102, so that the second limit block 1023 squeezes the protrusion 1014, causing the protrusion 1014 to shift toward the direction close to the notch 1015, thereby increasing the distance from the protrusion 1014 to the inner wall of the relative third slide groove 1013, so that the second limit block 1023 can slide in, thereby realizing the installation of the second shell 102. After the second shell 102 enters, the protrusion 1014 resets and continues to prevent the second shell 102 from sliding out of the third slide groove 1013 in the opposite direction.

[0095] Furthermore, if Figure 1 As shown, the nailing control assembly of the present invention further includes a thread lock control device 50;

[0096] The wire lock control device 50 is fixedly connected to the housing 10 . A wire lock spring tube axially penetrates the wire lock control device 50 . The wire lock control device 50 is used to control the wire lock anchor in the wire lock spring tube.

[0097] Specifically, the nailing control component of the present invention is installed with the locking wire control component 70. The locking wire control component 70 can control the first group of locking wires to lock the first group of anchors, and the locking wire control device 50 in the nailing control component can control the second group of locking wires to lock the second group of anchors. The doctor can synchronously operate the locking wire control component 70 and the locking wire control device 50 to synchronously lock the first group of anchors and the second group of anchors. When operating, the doctor can make the two refer to each other and compare the respective locking forces, so that the locking forces of the two groups are the same or similar through regulation, so that after the anchors are finally locked, the shape of the repaired valve ring tissue is regular, which is conducive to subsequent recovery.

[0098] Furthermore, an observation window 103 is provided on the shell 10, through which the nailing and bending tube 201 and the wire locking spring tube pass. The observation window 103 is made of a transparent material, and scale lines may be provided on the edge of the observation window 103. When the nailing and bending tube 201 or the wire locking spring tube moves axially, the doctor can view the moving distance of the tube through the observation window 103, which is convenient for the doctor to use.

[0099] Further, Figure 4 A schematic diagram of the structure of a conveying system according to an embodiment of the present invention is shown as follows: Figure 4 As shown, the present invention also provides a delivery system, including the above-mentioned nailing control assembly, and also including a sheath bending adjustment assembly 60 and a wire locking device control assembly 70;

[0100] One end of the thread lock control assembly 70 is connected to the sheath tube bending adjustment assembly 60, and the other end is connected to the nailing control assembly. The thread lock spring tube in the thread lock control assembly 70 and the nailing bending adjustment tube in the nailing control assembly extend into the sheath tube in the sheath tube bending adjustment assembly 60;

[0101] The sheath bending adjustment component 60 is used to adjust the bending angle of the sheath, and the wire locking device control component 70 is used to control the wire locking device to lock the anchor.

[0102] Specifically, the sheath bending adjustment assembly 60 includes a third housing 601 and a first control member 602. The first control member 602 is disposed on the side of the third housing 601. One end of the third housing 601 is connected to the sheath, and the other end is connected to the wire lock control assembly 70.

[0103] The first control member 602 is fixedly connected to the guide wire in the sheath, and the first control member 602 can control the axial movement of the guide wire to pull the guide wire to realize the bending operation of the sheath. At the same time, the first control member 602 is arranged on the side of the third shell 601 to reduce the overall axial length of the third shell 601, thereby reducing the axial length of the wire locking spring tube and the nailing bending adjustment tube 201 to a certain extent. The shorter the axial length of the tube, the higher the control accuracy of its end, thereby improving the surgical accuracy.

[0104] With such a configuration, through the above-mentioned delivery system, the doctor completes the anchor nailing operation by controlling the nailing control component, and completes the operation of locking the anchor nail with the wire locker through the wire locker control component 70. When all is completed, the wire locker is removed from the wire locker spring tube, the anchor nail is removed from the nailing bending tube 201, and the entire device is withdrawn from the human body to complete the valve ring repair surgery.

[0105] To sum up, through the solution of the present invention, the nailing control assembly includes a bending tube control device 20, a spring tube control device 30 and an anchor control device 40. The bending tube control device 20 can control the axial movement, circumferential rotation and bending of the nailing bending tube 201 therein, the spring tube control device 30 can control the axial movement and circumferential rotation of the nailing spring tube 301 therein, and the anchor control device 40 can control the axial movement and circumferential rotation of the anchor steel cable 401 therein. Through multiple driving modes, each component controls the pipeline separately, making it more convenient for doctors to use, more precise in control, and improving surgical safety.

[0106] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A nailing control component, characterized in that: include: Shell, bending tube control device, spring tube control device and anchor control device; The housing includes a first shell and a second shell, the second shell being axially movable relative to the first shell; The bending tube control device is provided with an axially penetrating nailing bending tube, and the nailing bending tube can move axially and rotate circumferentially relative to the bending tube control device. The bending tube control device is used to control the bending angle of the nailing bending tube; The spring tube control device is provided with an axially penetrating nail spring tube, the nail spring tube is arranged in the nail bending adjustment tube, and the nail spring tube can move axially and rotate circumferentially relative to the spring tube control device; An axially penetrating anchor cable is provided in the anchor control device, the anchor cable is provided in the nailing spring tube, and the anchor cable can move axially and rotate circumferentially relative to the anchor control device so that the anchor at the end of the anchor cable is nailed into the valve annulus tissue; The bending pipe control device includes a first driving structure and a second driving structure; The first driving structure is axially inserted into the housing, and the second driving structure penetrates the side wall of the housing; The first drive structure is capable of axial movement and circumferential rotation relative to the housing. A circumferential rack is provided on a circumferential side wall of the first drive structure. The second drive structure includes a gear. The second drive structure is meshed with the first drive structure via the gear and the circumferential rack to enable the first drive structure to move axially in steps. A first rotating member and a second rotating member are provided in the first driving structure, and a first sliding groove is provided on a side wall of the first driving structure; The first rotating member includes a first rotating column that can rotate in a circumferential direction, and the second rotating member is threadedly connected to the first rotating column; A first slider is provided on a circumferential side wall of the second rotating member. The first slider is located in the first sliding groove. The first sliding groove is used to convert the circumferential rotation of the first rotating column into the axial movement of the second rotating member through the first slider. The second rotating member is fixedly connected to the guide wire in the nailing and bending adjustment tube, and the second rotating member pulls the guide wire through axial movement to bend the nailing and bending adjustment tube; The spring tube control device includes a first fixed member and a third rotating member; The first fixing member is fixedly connected to the bending pipe control device, the third rotating member is inserted into the first fixing member, and the third rotating member is fixedly connected to the nailing spring tube; The third rotating member can move axially and rotate circumferentially relative to the first fixed member; A first limiting hole is provided on the side wall of the first fixing member, and the first locking member is inserted into the first limiting hole to abut against the third rotating member to limit the movement of the nail spring tube.

2. A nailing control assembly according to claim 1, characterized in that: The anchor control device includes a second fixed member and a fourth rotating member; The second fixing member is fixedly connected to the spring tube control device, the fourth rotating member is inserted into the second fixing member, and the fourth rotating member is fixedly connected to the anchor cable; The fourth rotating member is axially movable and circumferentially rotatable relative to the second fixed member.

3. A nailing control assembly according to claim 2, characterized in that: A first limiting groove and at least one second limiting groove are provided on the side wall of the second fixing member; The first limiting groove passes through the second fixing member, the second limiting groove is connected to the first limiting groove, the first limiting groove extends axially, and the second limiting groove extends circumferentially; A second limiting member is radially arranged to penetrate the side wall of the fourth rotating member. When the end of the second limiting member is located in the second limiting groove, the fourth rotating member can rotate circumferentially but cannot move axially. When the second limiting member is located in the first limiting groove, the fourth rotating member can move axially but cannot rotate circumferentially.

4. A nailing control assembly according to claim 1, characterized in that: A second locking member is provided on the side wall of the second housing. The second locking member is inserted into the second housing and abuts against the first driving structure to fix the first driving structure to the second housing. A second sliding groove is provided on the side wall of the first housing, and a third limiting hole is provided on the side wall of the second housing. A third locking member can be inserted into the second sliding groove and located in the third limiting hole. The third locking member is slidably connected to the second sliding groove to enable the second housing to move axially relative to the first housing. The third locking member is threadedly connected to the third limiting hole to fix the first shell and the second shell.

5. The nailing control assembly according to claim 1, characterized in that: Also included is a thread locker control; The wire lock control device is fixedly connected to the housing. A wire lock spring tube axially penetrates the wire lock control device. The wire lock control device is used to control the wire lock anchor in the wire lock spring tube.

6. A nailing control assembly according to claim 5, characterized in that: An observation window is provided on the shell, and the nailing and bending adjustment tube and the wire locking spring tube pass through the observation window, and the observation window is made of a transparent material.

7. A conveying system, characterized in that: A nailing control assembly comprising any one of claims 1 to 6, further comprising a sheath bending adjustment assembly and a wire lock control assembly; One end of the thread lock control assembly is connected to the sheath tube bending adjustment assembly, and the other end is connected to the nailing control assembly. The thread lock spring tube in the thread lock control assembly and the nailing bending adjustment tube in the nailing control assembly extend into the sheath tube in the sheath tube bending adjustment assembly. The sheath tube bending adjustment component is used to adjust the bending angle of the sheath tube, and the wire lock control component is used to control the wire lock to lock the anchor nail.

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