A delivery system for valve repair

Abstract

The present invention discloses a delivery system for valve repair, which relates to the technical field of valve repair, and the scheme is: a first delivery component and a second delivery component; the first delivery component includes a first thread locker control device and a first nailing control device, one end of the first thread locker control device is fixedly connected to a multi-lumen tube, and the other end is detachably connected to the first nailing control device; the second delivery component is detachably connected to the first thread locker control device, and the second delivery component includes a second thread locker control device and a second nailing control device; the multi-lumen tube includes an axially arranged first lumen, a second lumen and a third lumen, and the delivery system is used to make the first thread locker and the second thread locker synchronously lock the first nailer and the second nailer through the first lumen and the third lumen. The device can lock two groups of nailers at the same time, and adjust the locking force in real time by comparing with each other, so that the shape of the valve after repair is regular.

Description

Technical Field

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

[0002] Heart valves are checkpoints between different cardiovascular structures. They can only open and close in a certain direction to ensure 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 from the left atrium to the left ventricle in a directional manner and passes a certain amount of blood flow. 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 and flows to the whole body. The mitral valve opens, and blood flows from the left atrium into the left ventricle; then the mitral valve closes to ensure that when the left ventricle contracts to pump blood to the aorta, blood does not flow back into the left atrium. If the mitral valve is diseased and cannot be fully closed, it will cause blood to 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. In order to compensate, the heart will try to pump blood more forcefully, which increases the heart's workload. Patients with severe mitral regurgitation may 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 limitation of activities, repeated hospitalizations due to heart failure and increased mortality. Chronic severe mitral regurgitation is often accompanied by heart failure, which can lead to death if not treated.

[0004] At present, there are two main treatment methods for mitral regurgitation: medication and surgery. The surgical treatment is divided into edge-to-edge repair, valve repair and chord repair. For valve repair, multiple groups of anchors are inserted into the valve ring, and each group of anchors is locked by multiple lockers to achieve the overall repair of the valve. However, the internal situation of the heart valve is not visible during treatment, and the locking force is controlled by the doctor's experience. However, locking each group of anchors one by one cannot ensure that the locking force is consistent each time, resulting in an irregular shape of the repaired valve ring, which leads to uneven valve closure along the valve commissure. Tighter closure will reduce blood flow and cause insufficient blood supply, while looser closure will not achieve the purpose of treating reflux. Summary of the invention

[0005] The object of the present invention is to solve at least one of the problems in the above-mentioned background technology, and to provide a delivery system for valve repair.

[0006] To achieve the above object, a valve repair delivery system of the present invention comprises:

[0007] a first conveying assembly and a second conveying assembly;

[0008] The first conveying assembly includes a first wire locking device control device and a first nail driving control device, one end of the first wire locking device control device is fixedly connected to the multi-lumen tube, and the other end is detachably connected to the first nail driving control device, the first nail driving control device is used to control the first nail driving device to drive nails, and the first wire locking device control device is used to control the first wire locking device to lock the first nail driving device;

[0009] The second conveying assembly is detachably connected to the first wire locking device control device, the second conveying assembly includes a second wire locking device control device and a second nailing control device, the second nailing control device is used to control the second nailing device to nail, and the second wire locking device control device is used to control the second wire locking device to lock the second nailing device;

[0010] The multi-lumen tube includes a first lumen, a second lumen and a third lumen arranged axially, the first lumen is used for the first thread locker to enter, the second lumen is used for the first nail driver and the second nail driver to enter respectively, and the third lumen is used for the second thread locker to enter;

[0011] The conveying system is used to enable the first wire locker and the second wire locker to synchronously lock the first nail driver and the second nail driver through the first lumen and the third lumen.

[0012] To achieve the above-mentioned purpose, a delivery system for valve repair of the present invention further includes a sheath bending adjustment component;

[0013] The sheath tube bending assembly comprises a first mounting bracket and a first adjusting structure, wherein the first adjusting structure is arranged on the side of the first mounting bracket for adjusting the sheath tube, one end of the first mounting bracket is connected to the sheath tube, and the other end is connected to the first wire lock control device;

[0014] The multi-lumen tube passes through the first mounting bracket and passes through the sheath tube.

[0015] Preferably, the first wire lock control device comprises a second mounting bracket and a second adjustment structure, one end of the second mounting bracket is connected to the multi-lumen tube, and the other end is connected to the first nailing control device or the second conveying assembly, the second adjustment structure is fixedly connected to the side of the second mounting bracket, and the second adjustment structure is used to control the axial movement and circumferential rotation of the first wire lock;

[0016] The first wire lock passes through the second adjustment structure and the second mounting bracket in sequence.

[0017] Preferably, the first nailing control device comprises a third mounting bracket and a third adjusting structure, one end of the third mounting bracket is connected to the second mounting bracket, and the other end is connected to the third adjusting structure;

[0018] The first nail driver passes through the third adjustment structure, the third mounting bracket and the second mounting bracket in sequence, and the third adjustment structure is used to control the axial movement and circumferential rotation of the first nail driver.

[0019] Preferably, the second nail driving control device comprises a fourth mounting bracket and a fourth adjustment structure, one end of the fourth mounting bracket is connected to the second mounting bracket, and the other end is connected to the fourth adjustment structure and the second wire lock control device;

[0020] The second nail driver passes through the fourth adjustment structure, the fourth mounting bracket and the second mounting bracket in sequence, and the fourth adjustment structure is used to control the axial movement and circumferential rotation of the second nail driver.

[0021] Preferably, the second wire lock control device comprises a fifth adjustment structure, and the fifth adjustment structure is connected to the fourth mounting bracket;

[0022] The second wire locker passes through the fifth adjustment structure, the fourth mounting bracket and the second mounting bracket in sequence, and the fifth adjustment structure is used to control the axial movement and circumferential rotation of the second wire locker.

[0023] Preferably, a first limiting hole is provided on the side wall of the second mounting bracket, a first limiting groove is provided on the side wall of the third mounting bracket, and a second limiting groove is provided on the side wall of the fourth mounting bracket;

[0024] When the third mounting bracket or the fourth mounting bracket is connected to the second mounting bracket, the first limiting member is inserted into the first limiting groove or the second limiting groove through the first limiting hole, and the first limiting member is used to limit the movement of the third mounting bracket or the fourth mounting bracket.

[0025] To achieve the above-mentioned purpose, a delivery system for valve repair of the present invention further comprises an expansion tube, and the expansion tube is detachably connected to the sheath tube bending adjustment assembly.

[0026] Preferably, injection channels are provided on the second mounting bracket, the third mounting bracket and the fourth mounting bracket, and the injection channels are used to inject sealing liquid to seal the inner space of the multi-lumen tube.

[0027] Preferably, observation windows are provided on the third mounting bracket and the fourth mounting bracket, and the observation windows are made of transparent material.

[0028] Based on this, the beneficial effects of the present invention are:

[0029] 1. Through the solution of the present invention, when the first nailing device completes nailing, the first thread locker can be left in the first lumen of the multi-lumen tube, and when the second nailing device is nailing, the second thread locker is located in the third lumen. When the second nailing device completes nailing, the doctor can synchronously control the first thread locker control device and the second thread locker control device to control the first thread locker and the second thread locker to respectively lock the first nailing device and the second nailing device with the same or similar locking force, so that the shape of the repaired valve is regular;

[0030] 2. Through the scheme of the present invention, the sheath bending adjustment assembly includes a first mounting bracket and a first adjustment structure, and the first adjustment structure is arranged on the side of the first mounting bracket. In this way, the overall length of the sheath bending adjustment device can be reduced, thereby shortening the length of the nailing and bending adjustment tube and the wire locking spring tube. The shorter the length of the nailing and bending adjustment tube and the wire locking spring tube, the higher the accuracy of the first conveying assembly and the second conveying assembly in controlling their movement and bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0032] Figure 1 A schematic diagram schematically shows the structure of a conveying system according to an embodiment of the present invention;

[0033] Figure 2 A cross-sectional view schematically showing a multi-lumen tube according to one embodiment of the present invention;

[0034] Figure 3 A schematic diagram schematically shows the structure of a sheath tube bending adjustment assembly according to an embodiment of the present invention;

[0035] Figure 4 A schematic diagram schematically showing the structure of a first wire lock control device according to an embodiment of the present invention;

[0036] Figure 5 A schematic diagram schematically showing the structure of a first nailing control device according to an embodiment of the present invention;

[0037] Figure 6 A schematic diagram schematically showing the structure of a second conveying assembly in one embodiment of the present invention;

[0038] Description of the accompanying drawings: first conveying assembly 10, first wire lock control device 101, second mounting bracket 1011, second auxiliary connecting member 10111, second shell 10112, first limiting hole 10113, first limiting member 10114, second adjusting structure 1012, first control member 10121, second control member 10122, first nailing control device 102, third mounting bracket 1021, first limiting groove 10211, third shell 10212, fourth shell 10213, third adjusting structure 1022, third control member 10221, fourth control member 10222, fifth control member 10223, multi-lumen tube 103, first lumen 1031, second lumen 1032, third lumen 1033, second conveying assembly 20, second wire lock control device 201, The fifth adjusting structure 2011, the ninth control member 20111, the tenth control member 20112, the second nailing control device 202, the fourth mounting bracket 2021, the fifth shell 20211, the sixth shell 20212, the second limiting groove 20213, the fourth adjusting structure 2022, the sixth control member 20221, the seventh control member 20222, the eighth control member 20223, the sheath bending adjustment assembly 30, the first mounting bracket 301, the first auxiliary connecting member 3011, the first through hole 3012, the first groove 3013, the guide column 3014, the first shell 3015, the second groove 30151, the first adjusting structure 302, the first rotating member 3021, the second rotating member 3022, the first protrusion 30221, the sheath 303, the expansion tube 40, the injection channel 50, and the observation window 60. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] 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", "said" 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 other meanings.

[0041] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is formed "on" or "under" another element, it can not only be formed directly "on" or "under" another element, but also be formed "on" or "under" another element indirectly through an intermediate element.

[0042] Figure 1 A schematic diagram schematically shows the structure of a conveying system according to an embodiment of the present invention, Figure 2 A cross-sectional view schematically showing a multi-lumen tube according to an embodiment of the present invention is shown in FIG. Figure 1 , 2 As shown, a delivery system for valve repair of the present invention comprises:

[0043] A first conveying assembly 10 and a second conveying assembly 20;

[0044] The first conveying assembly 10 includes a first thread locker control device 101 and a first nail driving control device 102. One end of the first thread locker control device 101 is fixedly connected to the multi-lumen tube 103, and the other end is detachably connected to the first nail driving control device 102. The first nail driving control device 102 is used to control the first nail driving device to drive nails, and the first thread locker control device 101 is used to control the first thread locker to lock the first nail driving device.

[0045] The second conveying assembly 20 is detachably connected to the first thread locker control device 101. The second conveying assembly 20 includes a second thread locker control device 201 and a second nail driving control device 202. The second nail driving control device 202 is used to control the second nail driving device to drive nails. The second thread locker control device 201 is used to control the second thread locker to lock the second nail driving device.

[0046] The multi-lumen tube 103 includes a first lumen 1031, a second lumen 1032 and a third lumen 1033 arranged axially therein. The first lumen 1031 is used for the first thread locker to enter, the second lumen 1032 is used for the first nail driver and the second nail driver to enter respectively, and the third lumen 1033 is used for the second thread locker to enter;

[0047] The delivery system is used to allow the first thread locker and the second thread locker to synchronously lock the first nail driver and the second nail driver through the first lumen 1031 and the third lumen 1033 .

[0048] Specifically, the first conveying assembly 10 includes a first thread lock control device 101 and a first nail driving control device 102. One end of the first thread lock control device 101 is detachably connected to the first nail driving control device 102 and the second conveying assembly 20, and the other end is fixedly connected to the multi-lumen tube 103.

[0049] When it is used, the first nailing control device 102 is connected to the first wire locking device control device 101, so that the first wire locking device penetrates into the first lumen 1031 of the multi-lumen tube 103, and the first nailing device penetrates into the second lumen 1032. When the first nailing device completes the nailing operation, the first nailing control device 102 and the first wire locking device control device 101 are disassembled, and the second conveying component 20 is installed with the first wire locking device control device 101, so that the second wire locking device in the second wire locking device control device 201 penetrates into the third lumen 1033, and the second nailing device in the second nailing control device 202 penetrates into the second lumen 1032. At this time, the first lumen 1031 penetrates the first wire locking device, the second lumen 1032 penetrates the second nailing device, and the third lumen 1033 penetrates the second wire locking device;

[0050] When the second nail driver completes the nailing operation, the first wire locking device control device 101 and the second wire locking device control device 201 are synchronously controlled to respectively control the first wire locking device to lock the first nail driver and the second wire locking device to lock the second nail driver, thereby synchronously completing two sets of locking operations.

[0051] With such arrangement, when the doctor synchronously controls the two sets of thread locks for locking, the locking degrees of the two sets of thread locks are adjusted in real time by comparing the control degrees of the two sets of thread locks, so that the locking forces of the two sets of nailers are consistent or similar, thereby making the overall shape of the heart valve regular, solving the problem that the doctor cannot refer to each other when locking separately and cannot ensure the consistency of the locking forces twice, resulting in irregular shape of the repaired heart valve and affecting the subsequent recovery degree.

[0052] Further, Figure 3 A schematic diagram schematically shows the structure of a sheath tube bending adjustment assembly according to an embodiment of the present invention, as shown in FIG. Figure 1 , 3 As shown, a delivery system for valve repair of the present invention further includes a sheath bending adjustment component 30 and a dilation tube 40;

[0053] The sheath tube bending assembly 30 includes a first mounting bracket 301 and a first adjusting structure 302. The first adjusting structure 302 is arranged on the side of the first mounting bracket 301 to be used for bending the sheath tube 303. One end of the first mounting bracket 301 is connected to the sheath tube 303, and the other end is connected to the first wire lock control device 101.

[0054] The multi-lumen tube 103 passes through the first mounting bracket 301 and through the sheath tube 303 .

[0055] Specifically, a first auxiliary connecting piece 3011 is provided in the first mounting bracket 301, the sheath tube 303 is inserted into the first mounting bracket 301 and fixedly connected to one end of the first auxiliary connecting piece 3011, and the other end of the first auxiliary connecting piece 3011 is used for inserting the expansion tube 40 and the first wire lock control device 101, so that the whole is assembled.

[0056] A first through hole 3012 and a first groove 3013 are provided on the side wall of the first auxiliary connecting piece 3011, and a guide column 3014 is provided on the side wall of the first mounting bracket 301. The first through hole 3012 penetrates the side wall of the first auxiliary connecting piece 3011, and the bending guide wire on the sheath tube 303 can be led out of the first auxiliary connecting piece 3011 through the first through hole 3012;

[0057] The first groove 3013 extends in the axial direction, and the first groove 3013 and the first through hole 3012 are on the same axis. After the bending guide wire in the sheath tube 303 is led out through the first through hole 3012, it is inserted from one end of the first groove 3013 and passes through the other end of the first groove 3013.

[0058] The guide column 3014 is arranged near the other end of the first groove 3013, and the guide column 3014 extends in the radial direction. When the bending adjustment guide wire passes through the other end of the first groove 3013, it is wrapped around the side wall of the guide column 3014. The side wall of the guide column 3014 guides the bending adjustment guide wire of the sheath 303 so that it changes from extending in the axial direction to extending in the radial direction, and then is fixedly connected to the first adjustment structure 302 located on the side of the first mounting bracket 301. The first adjustment structure 302 can make the bending adjustment guide wire move back and forth in the radial direction, and then the bending of the sheath 303 is achieved by pulling the bending adjustment guide wire.

[0059] The first mounting bracket 301 further includes a first shell 3015 located at a side thereof and extending outwards, and the first adjustment structure 302 is inserted into the first shell 3015 and fixedly connected to the bending adjustment guide wire;

[0060] The first adjustment structure 302 includes a first rotating member 3021 and a second rotating member 3022. The second rotating member 3022 is sleeved on the first rotating member 3021, and the two are threadedly connected. At the same time, a first protrusion 30221 is provided on the circumferential side wall of the second rotating member 3022. A second groove 30151 extending along the axial direction of the first housing 3015 is provided on the first housing 3015. The second groove 30151 penetrates the side wall of the first housing 3015. The first protrusion 30221 is inserted into the second groove 30151 and is slidably connected thereto.

[0061] When the first rotating member 3021 is controlled to rotate, the second rotating member 3022 sleeved thereon is limited by the mutual positioning between the first protrusion 30221 and the second groove 30151 to achieve axial movement, and the bending adjustment guide wire of the sheath 303 is fixedly connected to the second rotating member 3022. When the second rotating member 3022 moves, the bending adjustment guide wire will be pulled synchronously, thereby realizing the bending operation of the sheath 303.

[0062] In this way, by setting the first adjustment structure 302 for adjusting the bending sheath 303 on the side of the first mounting bracket 301, the overall length of the sheath bending adjustment assembly 30 can be shortened, and the length of the wire locking spring tube and the nailing bending adjustment tube can be reduced to a certain extent. The shorter the length of the wire locking spring tube and the nailing bending adjustment tube, the higher the control accuracy of the end control, which can achieve more precise control during surgery.

[0063] Furthermore, an injection channel 50 is also provided on the side of the first auxiliary connecting member 3011, and the injection channel 50 runs through the first mounting bracket 301. The injection channel 50 is used to inject sealing liquid to seal the internal space of the first auxiliary connecting member 3011 to prevent external air from entering the human body through the sheath tube 303, or blood in the human body from flowing out through the sheath tube 303.

[0064] Furthermore, the expansion tube 40 is detachably connected to the sheath tube bending adjustment assembly 30, and the expansion tube 40 can be inserted into the sheath tube 303 and partially extend out of the sheath tube 303;

[0065] The insertion end of the expansion tube 40 is set to be conical, which is easier to penetrate the body tissue, guide the insertion of the sheath 303, and provide an insertion path for the sheath 303. After it completes the corresponding operation, it is disassembled from the sheath bending assembly 30, and the first delivery assembly 10 and the sheath bending assembly 30 are installed to complete the subsequent valve repair operation.

[0066] Further, Figure 4 A schematic diagram schematically shows the structure of a first wire lock control device according to an embodiment of the present invention, as shown in FIG. Figure 4 As shown:

[0067] The first thread lock control device 101 includes a second mounting bracket 1011 and a second adjustment structure 1012. One end of the second mounting bracket 1011 is connected to the multi-lumen tube 103, and the other end is connected to the first nailing control device 102 or the second conveying assembly 20. The second adjustment structure 1012 is fixedly connected to the side of the second mounting bracket 1011. The second adjustment structure 1012 is used to control the axial movement and circumferential rotation of the first thread lock;

[0068] The first wire locker passes through the second adjustment structure 1012 and the second mounting bracket 1011 in sequence.

[0069] Specifically, a second auxiliary connecting piece 10111 is provided in the second mounting bracket 1011, the multi-lumen tube 103 is inserted into the second mounting bracket 1011 and fixedly connected to one end of the second auxiliary connecting piece 10111, and the first nailing control device 102 and the second conveying assembly 20 are detachably connected to the other end of the second auxiliary connecting piece 10111.

[0070] The second mounting bracket 1011 further includes a second housing 10112 disposed at a side thereof, the second housing 10112 extending in a radial direction, the second adjustment structure 1012 being mounted on the second housing 10112, a first wire lock spring tube being disposed in the second adjustment structure 1012, the first wire lock spring tube penetrating the second adjustment structure 1012, passing through the second housing 10112 and entering into the first lumen 1031 of the multi-lumen tube 103;

[0071] The first wire locker spring tube has a first wire locker in it, and the axial movement and circumferential rotation of the first wire locker spring tube can be achieved through the control of the second adjustment structure 1012, thereby achieving the locking operation of the first wire locker.

[0072] A first steel cable is arranged in the first wire locking spring tube, and an end portion of the first steel cable is detachably connected to the first wire locking device. The second adjustment structure 1012 includes a first control member 10121 and a second control member 10122. The first control member 10121 is sleeved on the first wire locking spring tube, and the second control member 10122 is sleeved on the first steel cable. The first control member 10121 can control the axial movement and circumferential rotation of the first wire locking spring tube, and the second control member 10122 can control the axial movement and circumferential rotation of the first steel cable, and can control the disassembly of the first steel cable and the first wire locking device. When the first wire locking device completes the locking operation, the first steel cable and the first wire locking device are controlled to be disassembled, and then the first wire locking spring tube and the first steel cable are controlled to be synchronously withdrawn from the body to complete the surgical operation.

[0073] An injection channel 50 is also provided on the side of the second auxiliary connecting piece 10111. The injection channel 50 runs through the second mounting bracket 1011. The injection channel 50 is used to inject sealing liquid to seal the internal space of the second auxiliary connecting piece 10111 to prevent external air from entering the human body through the multi-lumen tube 103, or blood from flowing out of the human body.

[0074] In this way, by setting the second adjustment structure 1012 on the side of the first mounting bracket 301, the length of the entire device can also be shortened, thereby reducing the overall length of the wire locking spring tube and the nailing and bending tube to achieve more precise control.

[0075] Further, Figure 5 A schematic diagram schematically shows the structure of a first nailing control device according to an embodiment of the present invention, as shown in FIG. Figure 5 As shown:

[0076] The first nailing control device 102 includes a third mounting bracket 1021 and a third adjustment structure 1022. One end of the third mounting bracket 1021 is connected to the second mounting bracket 1011, and the other end is connected to the third adjustment structure 1022.

[0077] The first nail driver passes through the third adjustment structure 1022, the third mounting bracket 1021 and the second mounting bracket 1011 in sequence. The third adjustment structure 1022 is used to control the axial movement and circumferential rotation of the first nail driver.

[0078] Specifically, a first limiting hole 10113 is provided on the side wall of the second mounting bracket 1011, and a first limiting groove 10211 is provided on the side wall of the third mounting bracket 1021. When the first nailing control device 102 and the first wire locking device control device 101 are installed, the first limiting groove 10211 and the first limiting hole 10113 are provided correspondingly. The first limiting member 10114 is inserted into the first limiting groove 10211 through the first limiting hole 10113, so as to limit the movement of the third mounting bracket 1021 relative to the second mounting bracket 1011, thereby realizing the fixed connection between the first wire locking device control device 101 and the first nailing control device 102.

[0079] Furthermore, a first nailing bending adjustment tube is provided in the first nailing control device 102, and a first nail driver is provided in the first nailing bending adjustment tube. When the first nailing control device 102 and the first wire locking device control device are installed, the first nailing bending adjustment tube extends into the second lumen 1032 of the multi-lumen tube 103, and the first nailing control device 102 controls the axial movement, circumferential rotation and end bending of the first nailing bending adjustment tube, so that the internal first nail driver is nailed into the valve tissue to realize the nailing operation.

[0080] The third mounting bracket 1021 includes a third shell 10212 and a fourth shell 10213, the third shell 10212 is slidably connected to the fourth shell 10213, the third shell 10212 is connected to the second mounting bracket 1011, and the first limiting groove 10211 is set on the side wall of the third shell 10212;

[0081] The third adjustment structure 1022 is connected to the fourth shell 10213. When the fourth shell 10213 slides relative to the third shell 10212, the third adjustment structure 1022 installed on the fourth shell 10213 can move synchronously as a whole.

[0082] The first nailing and bending adjustment tube is provided with a first nailing spring tube, the first nailing spring tube is provided with a second steel cable, the end of the second steel cable is detachably connected to the first nail driver, the third adjustment structure 1022 includes a third control member 10221, a fourth control member 10222 and a fifth control member 10223, the third control member 10221 is sleeved with the first nailing and bending adjustment tube, and can control the axial movement, circumferential rotation and bending of the end of the first nailing and bending adjustment tube, the fourth control member 10222 is sleeved with the first nailing spring tube, and can control the axial movement and circumferential rotation of the first nailing spring tube, and the fifth control member 10223 is sleeved with the second steel cable, and can control the axial movement and circumferential rotation of the second steel cable;

[0083] When performing the nailing operation, the third control component 10221 and the fourth control component 10222 are used to control the first nailing bending tube and the first nailing spring tube to move to the nailing position, and the fifth control component 10223 is used to control the second steel cable to rotate circumferentially, so that the first nailer at the end is nailed into the valve tissue. After completion, the second steel cable is controlled to be disassembled from the first nailer, and the first nailing bending tube and the first nailing spring tube are controlled to be withdrawn from the body for subsequent operations.

[0084] Further, Figure 6 A schematic diagram schematically shows the structure of the second conveying assembly in one embodiment of the present invention, as shown in FIG. Figure 6 As shown:

[0085] The second conveying assembly 20 includes a second thread locker control device 201 and a second nailing control device 202, and the second thread locker control device 201 is arranged on the housing of the second nailing control device 202;

[0086] When the second conveying assembly 20 is installed with the first thread locking device 101 , the second nailing device 202 is connected with the first thread locking device 101 .

[0087] After the nailing operation of the first nail driver of the first group is completed, the first nail driver control device 102 and the first wire locking device control device 101 are disassembled, and the first nail driver bending adjustment tube is removed from the second lumen 1032 of the multi-lumen tube 103. At this time, the first nail driver is in the human body, and the first wire locking device spring tube is still in the first lumen 1031 of the multi-lumen tube 103, and the first nail driver is not locked.

[0088] At this time, the second nailing control device 202 is installed with the first wire locking device control device 101, the second nailing bending tube in the second nailing control device 202 is extended into the second cavity tube 1032, and the second wire locking device spring tube in the second wire locking device control device 201 is extended into the third cavity tube 1033 of the multi-cavity tube 103. When the second nailing control device 202 controls the second nailer to complete the nailing operation, the first wire locking device control device 101 and the second wire locking device control device 201 are synchronously controlled to respectively make the first wire locking device lock the first nailer and the second wire locking device lock the second nailer.

[0089] In this way, by setting the first lumen 1031, the second lumen 1032, and the third lumen 1033 in the multi-lumen tube 103, when the doctor synchronously operates the first thread lock control device 101 and the second thread lock control device 201, he can clearly perceive the specific locking force of each thread lock by comparing the two controls, and perceive whether the locking force of a certain thread lock is larger or smaller, and can make real-time adjustments, thereby making the final shape of the valve regular after repair.

[0090] Furthermore, the second nailing control device 202 includes a fourth mounting bracket 2021 and a fourth adjustment structure 2022, one end of the fourth mounting bracket 2021 is connected to the second mounting bracket 1011, and the other end is connected to the fourth adjustment structure 2022 and the second wire lock control device 201;

[0091] The second nail driver passes through the fourth adjustment structure 2022, the fourth mounting bracket 2021 and the second mounting bracket 1011 in sequence. The fourth adjustment structure 2022 is used to control the axial movement and circumferential rotation of the second nail driver.

[0092] Specifically, the fourth mounting bracket 2021 has the same structure as the third mounting bracket 1021, and is also provided with a fifth shell 20211 and a sixth shell 20212. The sixth shell 20212 is slidingly connected to the fifth shell 20211, and the fourth adjustment structure 2022 and the second wire lock control device 201 are installed on the sixth shell 20212. When the sixth shell 20212 moves relative to the fifth shell 20211, the fourth adjustment structure 2022 and the second wire lock control device 201 can be controlled to move synchronously.

[0093] A second limiting groove 20213 is provided on the side wall of the fifth shell 20211. When the fifth shell 20211 and the second mounting bracket 1011 are installed, the first limiting member 10114 is inserted into the first limiting hole 10113 and the second limiting groove 20213 to achieve fixed connection between the fourth mounting bracket 2021 and the second mounting bracket 1011.

[0094] The fourth adjustment structure 2022 has the same structure as the third adjustment structure 1022. The second nailing and bending adjustment tube passes through the fourth adjustment structure 2022 and the fourth mounting bracket 2021 and enters the second cavity tube 1032 of the multi-cavity tube 103. A second nailing spring tube is arranged in the second nailing and bending adjustment tube. A third steel cable is arranged in the second nailing spring tube. The end of the third steel cable is detachably connected to a second nailing device.

[0095] The fourth adjustment structure 2022 includes a sixth control component 20221, a seventh control component 20222 and an eighth control component 20223. The sixth control component 20221 is sleeved on the second nailing and bending adjustment tube, which can control the axial movement, circumferential rotation and end bending of the second nailing and bending adjustment tube. The seventh control component 20222 is sleeved on the second nailing spring tube, which can control the axial movement and circumferential rotation of the second nailing spring tube. The eighth control component 20223 is sleeved on the third steel cable, which can control the axial movement and circumferential rotation of the third steel cable to realize the nailing operation of the second nail driver.

[0096] Furthermore, the second wire lock control device 201 includes a fifth adjustment structure 2011 , and the fifth adjustment structure 2011 has the same structure as the second adjustment structure 1012 .

[0097] A second wire locking spring tube is disposed in the second wire locking control device 201 . The second wire locking spring tube passes through the fifth adjustment structure 2011 , and passes through the fourth mounting bracket 2021 and the second mounting bracket 1011 and extends into the third lumen 1033 of the multi-lumen tube 103 .

[0098] A fourth steel cable is arranged in the second wire locking spring tube, a second wire locking device is arranged at the end of the fourth steel cable, the fifth adjustment structure 2011 includes a ninth control member 20111 and a tenth control member 20112, the ninth control member 20111 is sleeved on the second wire locking spring tube, and can control the axial movement and circumferential rotation of the second wire locking spring tube, the tenth control member 20112 is sleeved on the fourth steel cable, and can control the axial movement and circumferential rotation of the fourth steel cable, so as to realize the operation of the second wire locking device locking the second nail driver.

[0099] Furthermore, an observation window 60 is provided on the third mounting bracket 1021 and the fourth mounting bracket 2021. The observation window 60 is made of a transparent material. The first nailing and bending adjustment tube in the first nailing control device 102 can pass through the observation window 60, and the second nailing and bending adjustment tube and the second locking wire spring tube in the second nailing control device 202 can pass through the observation window 60, so that the doctor can check the axial movement distance of the tube.

[0100] Furthermore, the present invention also provides a control method of a delivery system, which is applied to the above-mentioned delivery system for valve repair, and the steps include:

[0101] S01: inserting the dilation tube 40 into the sheath bending adjustment assembly 30, and guiding the sheath 303 into the body;

[0102] S02: dismantle the expansion tube 40, install the first wire lock control device 101 and the sheath tube bending adjustment assembly 30, insert the multi-lumen tube 103 into the sheath tube 303, and insert the first wire lock spring tube into the first lumen 1031 of the multi-lumen tube 103;

[0103] S03: Install the first nail driving control device 102 and the first wire locking device control device 101, so that the first nail driving bending adjustment tube is inserted into the second lumen tube 1032 of the multi-lumen tube 103;

[0104] S04: Control the first nailing control device 102 to nail the first nailing device in the first nailing bending adjustment tube into the valve tissue, disassemble the first nailing control device 102 and the first thread lock control device 101, and withdraw the first nailing bending adjustment tube from the second lumen 1032;

[0105] S05: Install the second nail driving control device 202 and the first wire locking device control device 101, insert the second nail driving bending adjustment tube into the second lumen 1032, and insert the second wire locking device spring tube into the third lumen 1033;

[0106] S06: controlling the second nailing control device 202 to drive the second nailing device in the second nailing bending tube into the valve tissue;

[0107] S07: Synchronously control the first wire locker control device 101 and the second wire locker control device 201 to respectively make the first wire locker in the first wire locker spring tube lock the first nail driver and the second wire locker in the second wire locker spring tube lock the second nail driver with the same or similar locking force;

[0108] S08: withdraw the sheath bending adjustment assembly 30 from the body, and disconnect and disassemble the sheath bending adjustment assembly 30, the first wire locking device control device 101, and the second nailing control device 202 to complete the surgical operation.

[0109] With such arrangement, through the above control method, the synchronous locking of the two groups of nailers can be achieved, which solves the problem that when the locking of the nailers is controlled individually, there is no comparison between the two groups, and the locking force of each group cannot be referenced to each other for real-time adjustment, resulting in irregular shape of the repaired valve.

[0110] Moreover, after step S07, if a third set of nailing is required on the valve, the first wire locking control device 101 and the sheath bending adjustment assembly 30 can be disassembled, and the third conveying assembly having a third wire locking control device and a third nailing control device and the sheath bending adjustment assembly 30 can be installed to complete the third set of nailing operations.

[0111] To sum up, through the scheme of the present invention, when the first nailer completes nailing, the first locking wire can remain in the first lumen 1031 in the multi-lumen tube 103, and when the second nailer completes nailing, the second locking wire is located in the third lumen 1033. When the second nailer completes nailing, the doctor can synchronously control the first locking wire control device 101 and the second locking wire control device 201 to control the first locking wire and the second locking wire to respectively lock the first nailer and the second nailer with the same or similar locking force, so that the shape of the repaired valve is regular.

[0112] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A delivery system for valve repair, characterized in that: include: a first conveying assembly and a second conveying assembly; The first conveying assembly includes a first wire locking device control device and a first nail driving control device, one end of the first wire locking device control device is fixedly connected to the multi-lumen tube, and the other end is detachably connected to the first nail driving control device, the first nail driving control device is used to control the first nail driving device to drive nails, and the first wire locking device control device is used to control the first wire locking device to lock the first nail driving device; The second conveying assembly is detachably connected to the first wire locking device control device, the second conveying assembly includes a second wire locking device control device and a second nailing control device, the second nailing control device is used to control the second nailing device to nail, and the second wire locking device control device is used to control the second wire locking device to lock the second nailing device; The second wire locking device is arranged on the housing of the second nail driving device, and the second nail driving device is detachably connected to the first wire locking device. When the second nail driving device is connected to the first wire locking device, the first nail driving device is detached from the first wire locking device. The multi-lumen tube includes a first lumen, a second lumen and a third lumen arranged axially, the first lumen is used for the first thread locker to enter, the second lumen is used for the first nail driver and the second nail driver to enter respectively, and the third lumen is used for the second thread locker to enter; The conveying system is used to enable the first wire locker and the second wire locker to synchronously lock the first nail driver and the second nail driver through the first lumen and the third lumen.

2. A valve repair delivery system according to claim 1, characterized in that: Also included is a sheath bending adjustment component; The sheath tube bending assembly comprises a first mounting bracket and a first adjusting structure, wherein the first adjusting structure is arranged on the side of the first mounting bracket for adjusting the sheath tube, one end of the first mounting bracket is connected to the sheath tube, and the other end is connected to the first wire lock control device; The multi-lumen tube passes through the first mounting bracket and passes through the sheath tube.

3. A valve repair delivery system according to claim 1, characterized in that: The first wire lock control device comprises a second mounting bracket and a second adjustment structure, one end of the second mounting bracket is connected to the multi-lumen tube, and the other end is connected to the first nailing control device or the second conveying assembly, the second adjustment structure is fixedly connected to the side of the second mounting bracket, and the second adjustment structure is used to control the axial movement and circumferential rotation of the first wire lock; The first wire lock passes through the second adjustment structure and the second mounting bracket in sequence.

4. A valve repair delivery system according to claim 3, characterized in that: The first nailing control device includes a third mounting bracket and a third adjustment structure, wherein one end of the third mounting bracket is connected to the second mounting bracket, and the other end is connected to the third adjustment structure; The first nail driver passes through the third adjustment structure, the third mounting bracket and the second mounting bracket in sequence, and the third adjustment structure is used to control the axial movement and circumferential rotation of the first nail driver.

5. A valve repair delivery system according to claim 4, characterized in that: The second nail driving control device comprises a fourth mounting bracket and a fourth adjustment structure, wherein one end of the fourth mounting bracket is connected to the second mounting bracket, and the other end is connected to the fourth adjustment structure and the second wire locker control device; The second nail driver passes through the fourth adjustment structure, the fourth mounting bracket and the second mounting bracket in sequence, and the fourth adjustment structure is used to control the axial movement and circumferential rotation of the second nail driver.

6. A valve repair delivery system according to claim 5, characterized in that: The second wire lock control device includes a fifth adjustment structure, and the fifth adjustment structure is connected to the fourth mounting bracket; The second wire locker passes through the fifth adjustment structure, the fourth mounting bracket and the second mounting bracket in sequence, and the fifth adjustment structure is used to control the axial movement and circumferential rotation of the second wire locker.

7. A valve repair delivery system according to claim 5, characterized in that: A first limiting hole is provided on the side wall of the second mounting bracket, a first limiting groove is provided on the side wall of the third mounting bracket, and a second limiting groove is provided on the side wall of the fourth mounting bracket; When the third mounting bracket or the fourth mounting bracket is connected to the second mounting bracket, the first limiting member is inserted into the first limiting groove or the second limiting groove through the first limiting hole, and the first limiting member is used to limit the movement of the third mounting bracket or the fourth mounting bracket.

8. A valve repair delivery system according to claim 2, characterized in that: It also includes an expansion tube, which is detachably connected to the sheath tube bending adjustment assembly.

9. A valve repair delivery system according to claim 5, characterized in that: The second mounting bracket, the third mounting bracket and the fourth mounting bracket are provided with injection channels, and the injection channels are used to inject sealing liquid to seal the inner space of the multi-lumen tube.

10. A valve repair delivery system according to claim 5, characterized in that: Observation windows are arranged on the third mounting bracket and the fourth mounting bracket, and the observation windows are made of transparent material.

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