Auxiliary mounting device and conveying system

Abstract

The invention discloses an auxiliary mounting device and a conveying system, and relates to the technical field of valve repair, and the auxiliary mounting device comprises a first connecting piece, a second connecting piece and a second connecting piece, a second channel and a third channel are arranged in the second connecting piece, one end of the third channel is communicated with the second channel, the other end of the third channel is communicated with the multi-cavity tube, and the first connecting piece is inserted into the second channel to enable the first channel to be communicated with the third channel; the multi-cavity tube comprises a first cavity and a second cavity, the first cavity is communicated with the wire locking device control assembly, and the second cavity is communicated with the third channel; a first groove is formed in the end face, facing the second channel, of the third channel, a first protruding block is arranged on the surface, facing the second connecting piece, of the first connecting piece, and when the first connecting piece is inserted into the second channel and the first protruding block is inserted into the first groove, the first channel corresponds to the second cavity. In this way, the device can assist the nailing control assembly and the suture locking device control assembly in rapid installation, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve repair, and in particular to an auxiliary installation device and a delivery system. 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] Currently, in valve repair surgery, the control of anchor insertion and the locking of the anchor are two independent devices. The devices are penetrated by multiple pipes such as spring tubes and bending tubes and extend outward. Since the parts of multiple pipes extending out of the device are relatively scattered, it is inconvenient to connect the two devices. The multiple pipes need to be gathered again and aligned to the corresponding channels for installation, which affects the efficiency of the operation. 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 an auxiliary installation device and a conveying system.

[0006] To achieve the above object, an auxiliary installation device of the present invention comprises: A first connecting member, wherein a first passage is axially penetrated therein, and the first passage is used for the pipeline in the nailing control assembly to pass through; a second connecting member, in which a second channel and a third channel are axially arranged, one end of the third channel is connected to the second channel, and the other end is connected to the multi-lumen tube, and the first connecting member can be inserted into the second channel to connect the first channel with the third channel; The multi-lumen tube comprises a first chamber and a second chamber, the first chamber is communicated with the wire lock control assembly, the first chamber is used for the pipeline in the wire lock control assembly to pass through, the second chamber is communicated with the third channel, the second chamber is used for the pipeline in the nailing control assembly to pass through; The diameter of the third channel is smaller than that of the second channel. A first groove is arranged on the end surface of the third channel facing the second channel. A first protrusion is arranged on the surface of the first connecting member facing the second connecting member. When the first connecting member is inserted into the second channel and the first protrusion is inserted into the first groove, the first channel is arranged corresponding to the second chamber.

[0007] Preferably, the first connecting member includes a first shell, a second shell and a limiting member; The first shell is detachably connected to the second shell. When the first shell is combined with the second shell, the first channel is formed inside the first shell and the second shell. The stopper is used to combine the first shell and the second shell. A second protrusion is arranged on the first splicing surface of the first shell, and a second groove is arranged on the second splicing surface of the second shell. When the first shell and the second shell are combined, the first splicing surface is fitted with the second splicing surface, and the second protrusion is inserted into the second groove to lock the axial movement of the first shell and the second shell.

[0008] Preferably, the limiting member comprises a limiting sleeve, and the limiting sleeve is used for the pipeline in the nailing control assembly to pass through. When the first shell and the second shell can be inserted into the limiting sleeve at the same time, the limiting sleeve limits the radial movement of the first shell and the second shell.

[0009] Preferably, the limiting member further comprises a limiting column; A first through hole is provided on both axial sides of the second protrusion, and a second through hole is provided on both axial sides of the second housing, the second through hole passes through the second groove, and when the second protrusion is inserted into the second groove, the first through hole is communicated with the second through hole; A third through hole is axially arranged in the limit sleeve. When the first shell and the second shell are inserted into the limit sleeve, the limit column can pass through the third through hole, the second through hole and the first through hole in sequence to limit the circumferential rotation of the first shell and the second shell relative to the limit sleeve.

[0010] Preferably, a third groove is further provided on the circumferential side wall of the limiting sleeve, the third groove extends radially, and the third groove connects the interior of the limiting sleeve with the external space; The third groove is used for the pipeline in the nailing control assembly to enter or leave the limiting sleeve from the radial direction.

[0011] Preferably, a sealing member is provided in the second connecting member; The sealing member is located in the second channel and is arranged away from the third channel, and is used to seal the inner space of the second connecting member; When the first connecting member is inserted into the second connecting member, the first shell and the second shell pass through the sealing member, and the limiting sleeve is located outside the second channel.

[0012] Preferably, the sealing member is made of elastic material, and a cross-shaped sealing opening is provided at the center of the sealing member for the first shell and the second shell to pass through; When the first connecting member is inserted into the second connecting member, the first shell and the second shell are pressed and pass through the sealing port.

[0013] Preferably, a liquid injection channel is further provided on the side wall of the second connecting member, the liquid injection channel is located between the sealing member and the third channel, the liquid injection channel is communicated with the second channel, and the liquid injection channel is used to inject sealing liquid.

[0014] Preferably, a fourth channel and a fifth channel are axially arranged in the limiting sleeve; The fourth channel is communicated with the fifth channel, the fourth channel is used for the first shell and the second shell to be inserted, and the fifth channel is used for the pipeline in the nailing control assembly to pass through; The fourth passage has a diameter greater than a diameter of the fifth passage, so that the fifth passage limits axial movement of the first housing and the second housing.

[0015] To achieve the above object, the present invention further provides a delivery system, comprising an auxiliary installation device as described in any one of the above, and also comprising a sheath bending adjustment component, a wire locking device control component and a nailing control component; The second connecting member is arranged in the wire lock control assembly, and the pipeline extending from the nail driving control assembly passes through the first connecting member; One end of the wire lock control assembly is connected to the sheath bending adjustment assembly, and the other end is connected to the nailing control assembly through the auxiliary installation device, and the pipeline in the wire lock control assembly enters the first chamber of the multi-lumen tube through the second connecting piece; When the first connecting member is connected to the second connecting member, the pipeline in the nailing control assembly can enter the second chamber of the multi-lumen tube.

[0016] Based on this, the beneficial effects of the present invention are: 1. According to the solution of the present invention, a first channel is provided in the first connecting member, and the first channel can be used for the pipeline in the nailing control assembly to pass through, and the pipeline extending out of the nailing control assembly can be gathered. At the same time, one end of the second connecting member is connected to the multi-lumen tube, and the other end is connected to the first connecting member. When the first protrusion at the end of the first connecting member is inserted into the first groove on the surface of the third channel in the second connecting member, the first channel in the first connecting member can correspond to the second chamber of the multi-lumen tube, which facilitates the pipeline in the nailing control assembly to enter the multi-lumen tube, and the installation of the nailing control assembly can be quickly realized; 2. Through the scheme of the present invention, the first connecting member includes a first shell, a second shell and a limit member. The first shell and the second shell can be combined to wrap the pipeline. The limit member can lock the combination device of the first shell and the second shell. When the pipeline in the first connecting member auxiliary nailing control assembly enters the multi-lumen tube, the first shell and the second shell can be disassembled by removing the limit member and separated from the pipeline. It is ready for use and convenient to use.

[0017] 3. According to the solution of the present invention, the second connecting piece is arranged in the wire locking device control assembly, and the first connecting piece wraps the pipeline extending from the nailing control assembly. By connecting the first connecting piece with the second connecting piece, the nailing control assembly and the wire locking device control assembly can be quickly installed, thereby improving the surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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: Figure 1 A schematic diagram schematically showing the structure of a first connecting member according to an embodiment of the present invention; Figure 2 A schematic diagram schematically showing the structure of a second connecting member according to an embodiment of the present invention; Figure 3 A cross-sectional view schematically showing a multi-lumen tube according to one embodiment of the present invention; Figure 4 A schematic diagram schematically showing the structure of a first housing in one embodiment of the present invention; Figure 5 A schematic diagram schematically showing the structure of a second housing in one embodiment of the present invention; Figure 6 A schematic diagram schematically shows the structure of a limit sleeve according to an embodiment of the present invention; Figure 7 A schematic diagram schematically shows the structure of a sealing member according to an embodiment of the present invention; Figure 8 A schematic diagram schematically shows the structure of a conveying system according to an embodiment of the present invention; Explanation of the reference numerals: first connecting member 10, first channel 101, first protrusion 102, first shell 103, second protrusion 1031, first through hole 1032, second shell 104, second groove 1041, second through hole 1042, limiting member 105, limiting sleeve 1051, third through hole 10511, slider 10512, third groove 10513, fourth channel 10514, fifth channel 10515, limiting column 1052, first limiting hole 106, second connecting member 20, second channel 201, third channel 202, first groove 2021, sealing member 203, sealing port 2031, injection channel 204, multi-lumen tube 30, first chamber 301, second chamber 302, sheath bending adjustment assembly 40, wire locking device control assembly 50, nailing control assembly 60. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Figure 1 A schematic diagram schematically shows the structure of a first connecting member according to an embodiment of the present invention, Figure 2 A schematic diagram schematically shows the structure of a second connecting member according to an embodiment of the present invention, Figure 3 A cross-sectional view schematically showing a multi-lumen tube according to an embodiment of the present invention is shown in FIG. Figure 1-3 As shown, an auxiliary installation device of the present invention comprises: The first connecting member 10 has a first passage 101 extending axially therethrough, and the first passage 101 is used for the pipeline in the nailing control assembly 60 to pass through; The second connecting member 20 has a second channel 201 and a third channel 202 axially disposed therein. One end of the third channel 202 is connected to the second channel 201, and the other end is connected to the multi-lumen tube 30. The first connecting member 10 can be inserted into the second channel 201 to connect the first channel 101 with the third channel 202. The multi-lumen tube 30 includes a first chamber 301 and a second chamber 302. The first chamber 301 is communicated with the wire lock control assembly 50, and the first chamber is used for the pipeline in the wire lock control assembly 50 to pass through. The second chamber 302 is communicated with the third channel 202, and the second chamber 302 is used for the pipeline in the nailing control assembly 60 to pass through. The diameter of the third channel 202 is smaller than that of the second channel 201. A first groove 2021 is provided on the end face of the third channel 202 facing the second channel 201, and a first protrusion 102 is provided on the surface of the first connecting member 10 facing the second connecting member 20. When the first connecting member 10 is inserted into the second channel 201 and the first protrusion 102 is inserted into the first groove 2021, the first channel 101 and the second chamber 302 are provided correspondingly.

[0023] Specifically, the nailing control assembly 60 is installed with the thread lock control assembly 50 to realize the surgical operation of the valve ring repair. When the pipeline in the nailing control assembly 60 is extended, the multiple pipelines will be scattered. Since the thread lock control assembly 50 is connected to the multi-lumen tube 30, the multi-lumen tube 30 has multiple chambers. When in use, the pipeline in the nailing control assembly 60 needs to be inserted into the corresponding chamber of the multi-lumen tube 30 to complete the surgical operation. The scattered pipelines need to be manually controlled by the doctor to gather and adjust to correspond to the chambers in the multi-lumen tube 30. The overall operation is cumbersome and inefficient. By putting the first connecting piece 10 through the pipeline, the scattered pipelines can be gathered. At the same time, by inserting the first connecting piece 10 into the second connecting piece 20 and the first protrusion 102 into the first groove 2021, it can be ensured that the pipeline in the nailing control component 60 is correctly inserted into the corresponding chamber of the multi-lumen tube 30, and the nailing control component 60 and the wire locking control component 50 can be quickly installed, saving installation time and improving work efficiency.

[0024] Further, Figure 4 A schematic diagram schematically shows the structure of a first shell according to an embodiment of the present invention, Figure 5 A schematic diagram schematically shows the structure of the second housing according to an embodiment of the present invention, Figure 6 A schematic diagram schematically shows the structure of a limit sleeve according to an embodiment of the present invention, as shown in FIG. Figure 4-6 As shown: The first connecting member 10 includes a first shell 103, a second shell 104 and a stopper 105; The first shell 103 and the second shell 104 are detachably connected. When the first shell 103 and the second shell 104 are combined, the first channel 101 is formed inside the first shell 103 and the second shell 104. The stopper 105 is used to combine the first shell 103 and the second shell 104. A second protrusion 1031 is provided on the first joint surface of the first shell 103, and a second groove 1041 is provided on the second joint surface of the second shell 104. When the first shell 103 and the second shell 104 are combined, the first joint surface and the second joint surface are fitted together, and the second protrusion 1031 is inserted into the second groove 1041 to lock the axial movement of the first shell 103 and the second shell 104; The limiting member 105 includes a limiting sleeve 1051 , through which the pipeline in the nailing control assembly 60 passes. When the first shell 103 and the second shell 104 can be inserted into the limiting sleeve 1051 at the same time, the limiting sleeve 1051 limits the radial movement of the first shell 103 and the second shell 104 .

[0025] Specifically, the first shell 103 and the second shell 104 are detachably connected. When in use, the first shell 103 and the second shell 104 can be placed in the circumference of the pipeline, and the first shell 103 and the second shell 104 can be combined by approaching each other, and at the same time surround the pipeline to achieve the gathering of the pipeline. After use, the first shell 103 and the second shell 104 can be moved away from each other for disassembly, and the first connecting piece 10 can be disassembled without affecting the insertion of the pipeline into the multi-lumen tube 30, which is convenient for use.

[0026] At the same time, when the first shell 103 and the second shell 104 are combined, the cooperation between the second protrusion 1031 and the second groove 1041 can mutually limit the axial movement of the first shell 103 and the second shell 104. At the same time, when the limit sleeve 1051 is sleeved on the first shell 103 and the second shell 104, it can limit the radial movement of the first shell 103 and the second shell 104, and fix the combination state of the two.

[0027] Furthermore, the limiting member 105 further includes a limiting column 1052; A first through hole 1032 is provided on both axial sides of the second protrusion 1031, and a second through hole 1042 is provided on both axial sides of the second housing 104. The second through hole 1042 passes through the second groove 1041. When the second protrusion 1031 is inserted into the second groove 1041, the first through hole 1032 is connected with the second through hole 1042. A third through hole 10511 is axially arranged in the limiting sleeve 1051. When the first shell 103 and the second shell 104 are inserted into the limiting sleeve 1051, the limiting column 1052 can pass through the third through hole 10511, the second through hole 1042 and the first through hole 1032 in sequence to limit the axial rotation of the first shell 103 and the second shell 104 relative to the limiting sleeve 1051.

[0028] Specifically, when the first shell 103 and the second shell 104 are combined, the limiting sleeve 1051 can be used to connect the two to limit the radial movement of the first shell 103 and the second shell 104, but the connection between the two and the limiting sleeve 1051 is unstable, and the combination as a whole can rotate within the limiting sleeve 1051. When the doctor controls the installation of the limiting sleeve 1051 and the thread lock control assembly 50, the first shell 103 and the second shell 104 enter the thread lock control assembly 50, which is not conducive to the doctor's control of the first channel 101 to align with the second chamber 302. By setting the limiting column 1052, the limiting sleeve 1051 can be fixedly connected to the combined shape of the first shell 103 and the second shell 104, and the internal first channel 101 can be aligned with the second chamber 302 by positioning the limiting sleeve 1051, thereby completing the installation of the nailing control assembly 60 and the thread lock control assembly 50.

[0029] A corresponding slider 10512 can be set on the side wall of the limiting sleeve 1051, and a corresponding slide groove can be set on the inner wall of the shell of the wire lock control assembly 50. The limiting sleeve 1051 can be quickly positioned by inserting the slider 10512 into the slide groove, and the first channel 101 and the second chamber 302 can be quickly positioned at the same time, thereby achieving quick installation.

[0030] Furthermore, if Figure 6 As shown, a third groove 10513 is provided on the axial side wall of the limiting sleeve 1051, and the third groove 10513 extends radially, and the third groove 10513 connects the inner space of the limiting sleeve 1051 with the outer space; The third groove 10513 is used for the pipeline in the nailing control assembly 60 to enter or leave the limiting sleeve 1051 from the radial direction.

[0031] In addition, a fourth channel 10514 and a fifth channel 10515 are axially arranged in the limiting sleeve 1051. The fourth channel 10514 is connected to the fifth channel 10515. The fourth channel 10514 is used for inserting the first shell 103 and the second shell 104. The fifth channel 10515 is used for the pipeline in the nail control component 60 to pass through. The diameter of the fourth channel 10514 is greater than the diameter of the fifth channel 10515, so that the fifth channel 10515 limits the axial movement of the first shell 103 and the second shell 104.

[0032] With such arrangement, during installation, the pipeline is first gathered by combining the first shell 103 and the second shell 104, and then the limiting sleeve 1051 is moved from the radial direction of the pipeline to be coaxial with the pipeline through the third groove 10513. At this time, the limiting sleeve 1051 is controlled to move axially in the direction close to the first shell 103 and the second shell 104, so that the first shell 103 and the second shell 104 are inserted into the limiting sleeve 1051 to limit the radial position. At this time, the limiting column 1052 is inserted through the third through hole 10511, so that the combination of the first shell 103 and the second shell 104 and the limiting sleeve 1051 are circumferentially limited, thereby completing the assembly of the first connecting member 10.

[0033] Further, Figure 7 A schematic diagram schematically shows the structure of a seal according to an embodiment of the present invention, as shown in FIG. Figure 7 As shown, a sealing member 203 is provided in the second connecting member 20; The sealing member 203 is located in the second channel 201 and is disposed in the third channel 202. The sealing member 203 is used to seal the inner space of the second connecting member 20. When the first connecting member 10 is inserted into the second connecting member 20 , the first shell 103 and the second shell 104 pass through the sealing member 203 , and the limiting sleeve 1051 is located outside the second channel 201 .

[0034] Specifically, the sealing member 203 is made of elastic material, and a cross-shaped sealing opening 2031 is provided at the center of the sealing member 203 for the first shell 103 and the second shell 104 to pass through; When the first connecting member 10 is inserted into the second connecting member 20 , the first shell 103 and the second shell 104 are pressed and pass through the sealing opening 2031 .

[0035] In this way, the sealing opening 2031 on the sealing member 203 can ensure that the interior of the second connecting member 20 is sealed when the first connecting member 10 is not inserted, and at the same time, the first connecting member 10 can be inserted without disassembling parts.

[0036] Furthermore, a liquid injection channel 204 is provided on the side wall of the second connecting member 20 . The liquid injection channel 204 is located between the sealing member 203 and the third channel 202 . The liquid injection channel 204 is connected to the second channel 201 . The liquid injection channel 204 is used to inject the sealing liquid.

[0037] With such arrangement, the sealing liquid is injected into the interior through the injection channel 204, so that the internal air can be exhausted and bubbles in the tube seams can be prevented from entering the human body.

[0038] Further, Figure 8 A schematic diagram schematically shows the structure of a conveying system according to an embodiment of the present invention, as shown in FIG. Figure 8As shown, the present invention also provides a delivery system, including an auxiliary installation device as described above, and also including a sheath bending adjustment component 40, a wire lock control component 50 and a nailing control component 60; The second connecting member 20 is disposed in the wire locking device control assembly 50, and the pipeline extending through the nailing control assembly 60 passes through the first connecting member 10; One end of the wire lock control assembly 50 is connected to the sheath bending adjustment assembly 40, and the other end is connected to the nailing control assembly 60 through the auxiliary installation device. The pipeline in the wire lock control assembly 50 enters the first chamber 301 in the multi-lumen tube 30 through the second connecting piece 20; When the first connecting member 10 is connected to the second connecting member 20 , the pipeline in the nail control assembly 60 can enter the second chamber 302 in the multi-lumen tube 30 .

[0039] Specifically, one end of the sheath bending assembly 40 is connected to the sheath, and the other end is connected to the wire locking control assembly 50. The other end of the wire locking control assembly 50 is connected to the nailing control assembly 60. The sheath bending assembly 40 can perform bending operations on the sheath, the wire locking control assembly 50 can control the wire locking assembly to lock the anchor, and the nailing control assembly 60 can control the anchor to be nailed into the valve ring tissue.

[0040] When the nailing control assembly 60 is connected to the wire locking assembly 50 , the auxiliary installation device can realize a quick connection between the two, solving the problem that the nailing control assembly 60 extends out of the pipeline and is scattered, and cannot be quickly extended into the corresponding cavity of the multi-lumen tube 30 .

[0041] To sum up, through the scheme of the present invention, a first channel 101 is provided in the first connecting member 10, and the first channel 101 can be used for the pipeline in the nailing control component 60 to pass through, and it can gather the pipeline extending out of the nailing control component 60. At the same time, one end of the second connecting member 20 is connected to the multi-lumen tube 30, and the other end is connected to the first connecting member 10. When the first protrusion 102 at the end of the first connecting member 10 is inserted into the first groove 2021 on the surface of the third channel 202 in the second connecting member 20, the first channel 101 in the first connecting member 10 can correspond to the second chamber 302 of the multi-lumen tube 30, so that the pipeline in the nailing control component 60 can enter the multi-lumen tube 30 conveniently, and the installation of the nailing control component 60 and the wire locking device control component 50 can be quickly realized.

[0042] 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. An auxiliary installation device, characterized in that: include: A first connecting member, in which a first passage is axially penetrated, and the first passage is used for the pipeline in the nailing control assembly to pass through; a second connecting member, in which a second channel and a third channel are axially arranged, one end of the third channel is connected to the second channel, and the other end is connected to the multi-lumen tube, and the first connecting member can be inserted into the second channel to connect the first channel with the third channel; The multi-lumen tube comprises a first chamber and a second chamber, the first chamber is communicated with the wire lock control assembly, the first chamber is used for the pipeline in the wire lock control assembly to pass through, the second chamber is communicated with the third channel, the second chamber is used for the pipeline in the nailing control assembly to pass through; The diameter of the third channel is smaller than that of the second channel. A first groove is arranged on the end surface of the third channel facing the second channel. A first protrusion is arranged on the surface of the first connecting member facing the second connecting member. When the first connecting member is inserted into the second channel and the first protrusion is inserted into the first groove, the first channel is arranged corresponding to the second chamber.

2. An auxiliary installation device according to claim 1, characterized in that: The first connecting member includes a first shell, a second shell and a limiting member; The first shell is detachably connected to the second shell. When the first shell is combined with the second shell, the first channel is formed inside the first shell and the second shell. The stopper is used to combine the first shell and the second shell. A second protrusion is arranged on the first splicing surface of the first shell, and a second groove is arranged on the second splicing surface of the second shell. When the first shell and the second shell are combined, the first splicing surface is fitted with the second splicing surface, and the second protrusion is inserted into the second groove to lock the axial movement of the first shell and the second shell.

3. An auxiliary installation device according to claim 2, characterized in that: The limiting member includes a limiting sleeve, through which the pipeline in the nailing control assembly passes. When the first shell and the second shell can be inserted into the limiting sleeve at the same time, the limiting sleeve limits the radial movement of the first shell and the second shell.

4. An auxiliary installation device according to claim 3, characterized in that: The limiting member also includes a limiting column; A first through hole is provided on both axial sides of the second protrusion, and a second through hole is provided on both axial sides of the second housing, the second through hole passes through the second groove, and when the second protrusion is inserted into the second groove, the first through hole is communicated with the second through hole; A third through hole is axially arranged in the limit sleeve. When the first shell and the second shell are inserted into the limit sleeve, the limit column can pass through the third through hole, the second through hole and the first through hole in sequence to limit the circumferential rotation of the first shell and the second shell relative to the limit sleeve.

5. The auxiliary installation device according to claim 3, characterized in that: A third groove is also provided on the circumferential side wall of the limiting sleeve, the third groove extends radially, and the third groove connects the interior of the limiting sleeve with the external space; The third groove is used for the pipeline in the nailing control assembly to enter or leave the limiting sleeve from the radial direction.

6. The auxiliary installation device according to claim 3, characterized in that: A sealing member is provided in the second connecting member; The sealing member is located in the second channel and is arranged away from the third channel, and is used to seal the inner space of the second connecting member; When the first connecting member is inserted into the second connecting member, the first shell and the second shell pass through the sealing member, and the limiting sleeve is located outside the second channel.

7. An auxiliary installation device according to claim 6, characterized in that: The sealing member is made of elastic material, and a cross-shaped sealing opening is provided at the center of the sealing member for the first shell and the second shell to pass through; When the first connecting member is inserted into the second connecting member, the first shell and the second shell are pressed and pass through the sealing port.

8. The auxiliary installation device according to claim 6, characterized in that: A liquid injection channel is also provided on the side wall of the second connecting member. The liquid injection channel is located between the sealing member and the third channel. The liquid injection channel is communicated with the second channel and is used for injecting sealing liquid.

9. The auxiliary installation device according to claim 3, characterized in that: A fourth channel and a fifth channel are axially arranged in the limiting sleeve; The fourth channel is communicated with the fifth channel, the fourth channel is used for the first shell and the second shell to be inserted, and the fifth channel is used for the pipeline in the nailing control assembly to pass through; The fourth passage has a diameter greater than a diameter of the fifth passage, so that the fifth passage limits axial movement of the first housing and the second housing.

10. A conveying system, characterized in that: An auxiliary installation device comprising any one of claims 1 to 9, further comprising a sheath bending adjustment component, a wire lock control component and a nailing control component; The second connecting member is arranged in the wire lock control assembly, and the pipeline extending from the nail driving control assembly passes through the first connecting member; One end of the wire lock control assembly is connected to the sheath bending adjustment assembly, and the other end is connected to the nailing control assembly through the auxiliary installation device, and the pipeline in the wire lock control assembly enters the first chamber of the multi-lumen tube through the second connecting piece; When the first connecting member is connected to the second connecting member, the pipeline in the nailing control assembly can enter the second chamber of the multi-lumen tube.

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