An intervention system and a tangential device for an intervention system

Abstract

The present invention discloses an intervention system and a tangent device for the intervention system, including a reinforcing tube, a blade fixing disc, a blade turntable and a plurality of cutting blades. Among them, a plurality of wire passing holes are provided inside the reinforcing tube; a wire exposing groove is provided on the outer peripheral wall of the reinforcing tube. The blade fixing disc is fixed on the handle, and a plurality of linear guiding grooves are formed on the blade fixing disc. The blade turntable is rotatably sleeved on the outer periphery of the reinforcing tube; a plurality of arc-shaped guiding grooves are formed on the blade turntable. The plurality of cutting blades are located between the blade fixing disc and the blade turntable, and blade guiding rods are connected thereto; the two ends of the blade guiding rods respectively extend into the linear guiding grooves and the corresponding arc-shaped guiding grooves. By providing a wire exposing groove on the outer peripheral wall of the reinforcing tube; by providing a plurality of cutting blades between the blade fixing disc and the blade turntable, when the blade turntable rotates, the plurality of cutting blades are driven to approach or move away from the wire exposing groove, so that when the cutting blades rotate to the wire exposing groove, a plurality of wire drawing lines located at the wire exposing groove in the wire passing holes can be cut simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an intervention system and a tangent device for the intervention system. Background Art

[0002] When an intervention device delivers certain implant devices, it often needs to adjust or control the position or state of the implant device through a pull wire that penetrates back and forth. After completing the adjustment or control operation, one end of the pull wire is cut off, and then the other end is pulled out to withdraw the pull wire.

[0003] However, many implant devices need to be controlled or adjusted by multiple pull wires simultaneously. When cutting, if the pull wires are cut one by one, it will cause the situation that the implant device is partially stressed and partially unstressed, and then problems such as tilting, displacement, and bending of the implant device will occur.

[0004] Moreover, since there are multiple groups of pull wires in the implant device, there is a situation where several pull wires in a certain group need to be cut, while several pull wires in other groups do not need to be cut. Manual cutting has a certain risk of mis-cutting. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is the problem that when there are multiple groups of pull wires in the existing implant device, a certain number of pull wires in a specified group cannot be cut simultaneously, so as to provide an intervention system and a tangent device for the intervention system.

[0006] To solve the above technical problem, the technical solution of the present invention is as follows:

[0007] A tangent device for an intervention system, comprising:

[0008] A reinforcing tube, inside which there are multiple wire passing holes extending along its axial direction, and the multiple wire passing holes are arranged along the circumferential direction of the reinforcing tube; on the outer peripheral wall of the reinforcing tube, there is a wire exposing groove communicated with the multiple wire passing holes;

[0009] A blade fixing disc, fixed on the handle and sleeved on the outer periphery of the reinforcing tube, and on one side edge of the blade fixing disc, there are multiple linear guiding grooves opened;

[0010] A blade turntable, rotatably sleeved on the outer periphery of the reinforcing tube along the axial direction of the reinforcing tube, and arranged opposite to the blade fixing disc; on the side wall of the blade turntable facing the blade fixing disc, there are multiple arc-shaped guiding grooves opened; the multiple arc-shaped guiding grooves and the multiple linear guiding grooves are arranged in one-to-one correspondence;

[0011] A plurality of cutting blades are located between the blade fixed disk and the blade turntable and are in the same plane as the wire exposing groove, and blade guide rods are connected thereto; one end of each blade guide rod extends into the linear guide groove and the other end extends into the corresponding arc-shaped guide groove;

[0012] During the rotation of the blade turntable, the blade guide rods of the plurality of cutting blades are driven to slide simultaneously in the linear guide groove and the arc-shaped guide groove, so that the cutting blades approach or move away from the wire exposing groove on the reinforcing pipe.

[0013] Further, the guiding direction of the linear guide groove is not perpendicular to the radial direction of the blade fixed disk.

[0014] Further, the guiding direction of the linear guide groove is arranged along the radial direction of the blade fixed disk.

[0015] Further, the distances from the two ends of the arc-shaped guide groove to the center of the blade turntable are not equal.

[0016] Further, a blade edge is provided at one end of the cutting blade close to the reinforcing pipe, the blade edge is arc-shaped, and the arcs where the plurality of blade edges are located are concentrically arranged with the wire exposing groove.

[0017] Further, the cutting blade has a first arc-shaped side surface on one side of the blade edge and a second arc-shaped side surface on the other side of the blade edge; when the plurality of cutting blades extend into the wire exposing groove, the first arc-shaped side surface of the cutting blade matches the second arc-shaped side surface of an adjacent cutting blade, and the second arc-shaped side surface of the cutting blade matches the first arc-shaped side surface of another adjacent cutting blade.

[0018] Further, the cutting blade is in the shape of a propeller.

[0019] Further, a guiding conical surface is provided on the wire exposing groove.

[0020] Further, a reinforcing pipe center hole for the pushing pipe to pass through is also opened in the middle of the reinforcing pipe, and a plurality of wire passing holes are circumferentially and uniformly arranged on the outer periphery of the reinforcing pipe center hole.

[0021] Further, a cutting button travel groove is provided on the outer wall of the handle, and a cutting button extending out of the cutting button travel groove is connected to the outer side wall of the blade turntable.

[0022] Further, the

[0023] A fixing element sleeved on the outer periphery of the reinforcing pipe and used for fixing the blade fixed disk in the handle is connected to the reinforcing pipe.

[0024] An interventional system for delivering a valve repair device, comprising a handle, an interventional conduit mounted on the handle, and a tangent device, a wire pulling device, a pushing device, and a wire pulling out device arranged in the handle in sequence from the distal end to the proximal end. The tangent device adopts the tangent device for the interventional system described in any one of the above.

[0025] The technical solution of the present invention has the following advantages:

[0026] 1. The tangent device for the interventional system provided by the present invention is provided with a reinforcing tube having a plurality of wire passing holes distributed axially. A wire exposing groove communicating with the plurality of wire passing holes is arranged on the outer peripheral wall of the reinforcing tube. A blade fixing disk and a blade rotating disk are arranged on the outer periphery of the reinforcing tube. A plurality of linear guiding grooves are formed on one side edge of the blade fixing disk. A plurality of arc-shaped guiding grooves are formed on the side wall of the blade rotating disk facing the blade fixing disk. The plurality of arc-shaped guiding grooves and the plurality of linear guiding grooves are arranged in one-to-one correspondence. A plurality of cutting blades are arranged between the blade fixing disk and the blade rotating disk. The cutting blades and the wire exposing groove are located in the same plane. A blade guiding rod is connected to the cutting blade. One end of the blade guiding rod extends into the linear guiding groove and the other end extends into the corresponding arc-shaped guiding groove. During the relative rotation of the blade rotating disk and the blade fixing disk along the axis of the reinforcing tube, the plurality of cutting blades approach or move away from the wire exposing groove along with the movement of the blade rotating disk. When the cutting blades rotate to the wire exposing groove, a plurality of wire pulling lines located at the wire exposing groove in the wire passing holes can be cut simultaneously; compared with the method of cutting the plurality of wire pulling lines connected to the implanting instrument one by one in the prior art, the situation that the implanting instrument is locally stressed and not stressed locally during the process of cutting the wire pulling lines is avoided, thereby avoiding problems such as tilting, displacement, and bending of the implanting instrument.

[0027] 2. The tangent device for the interventional system provided by the present invention is provided with an arc-shaped blade edge at the end of the cutting blade close to the reinforcing tube. The arcs where the plurality of blade edges are located are concentric with the wire exposing groove. Such a design can make the blade edges all abut against the wire exposing groove without gaps, ensuring that the blade edges completely cut the wire pulling lines at the wire exposing groove.

[0028] 3. The tangent device for the interventional system provided by the present invention further has a first arc-shaped side surface on one side of the blade edge and a second arc-shaped side surface on the other side of the blade edge on the cutting blade. The first arc-shaped side surface matches the second arc-shaped side surface of the adjacent cutting blade. Such a design has good structural compactness, and can make the side surfaces of the plurality of cutting blades just fit and butt against each other when rotating to abut against the wire exposing groove, avoiding mutual interference and resulting in the inability to cut the wire pulling lines.

[0029] 4. The tangent device for the interventional system provided by the present invention is provided with a guiding conical surface on the wire exposing groove, which can make the blade edge of the cutting blade more accurately abut against the wire exposing groove, and the shearing effect can be improved by the incision between the blade edge and the guiding conical surface. Brief Description of the Drawings

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 Stereoscopic structure diagram of the tangential device for the interventional system provided by the present invention;

[0032] Figure 2 Internal structure schematic diagram of the blade fixing disk in the present invention;

[0033] Figure 3 Internal structure schematic diagram of the blade turntable in the present invention;

[0034] Figure 4 Stereoscopic structure diagram of the reinforcing tube in the present invention;

[0035] Figure 5 Structure schematic diagram of the reinforcing tube in the present invention.

[0036] Description of reference numerals: 01, handle; 011, travel slot of the cutting button; 02, reinforcing tube; 021, wire passing hole; 022, wire exposing slot; 023, guiding conical surface; 024, central hole of the reinforcing tube; 025, fixing element; 03, blade fixing disk; 031, linear guiding slot; 04, blade turntable; 041, arc guiding slot; 05, cutting blade; 051, blade guiding rod; 052, blade edge; 06, cutting button. Detailed Description of the Invention

[0037] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. The "proximal end" and "distal end" are the ends closer to or farther from the operator, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Such as Figures 1-5A tangent device for an interventional system as shown, the tangent device is installed in the inner cavity of a handle 01 and is located at the proximal end of the wire pulling device, and is used to simultaneously cut multiple shaped guiding wires controlled by the wire pulling device. The tangent device includes a reinforcing tube 02, a blade fixing disc 03, a blade rotating disc 04 and a plurality of cutting blades 05. Among them, a plurality of wire passing holes 021 extending along the axial direction thereof are provided inside the reinforcing tube 02, and the plurality of wire passing holes 021 are arranged along the circumferential direction of the reinforcing tube 02; a wire exposing groove 022 communicating with the plurality of wire passing holes 021 is provided on the outer peripheral wall of the reinforcing tube 02. The blade fixing disc 03 is fixed on the handle 01 and sleeved on the outer periphery of the reinforcing tube 02, and a plurality of linear guiding grooves 031 are opened on one side edge of the blade fixing disc 03. The blade rotating disc 04 is rotatably sleeved on the outer periphery of the reinforcing tube 02 along the axial direction of the reinforcing tube 02 and is arranged opposite to the blade fixing disc 03; a plurality of arc-shaped guiding grooves 041 are opened on the side wall of the blade rotating disc 04 facing the blade fixing disc 03; the plurality of arc-shaped guiding grooves 041 and the plurality of linear guiding grooves 031 are arranged in one-to-one correspondence. The plurality of cutting blades 05 are located between the blade fixing disc 03 and the blade rotating disc 04 and are in the same plane as the wire exposing groove 022, and a blade guiding rod 051 is connected thereto; one end of the blade guiding rod 051 extends into the linear guiding groove 031 and the other end extends into the corresponding arc-shaped guiding groove 041. During the rotation of the blade rotating disc 04, the blade guiding rods 051 of the plurality of cutting blades 05 are driven to slide in the linear guiding groove 031 and the arc-shaped guiding groove 041 at the same time, so that the cutting blades 05 approach or move away from the wire exposing groove 022 on the reinforcing tube 02.

[0042] This tangential device for an interventional system is provided with a reinforcing tube 02 having a plurality of wire passing holes 021 distributed axially. An exposed wire groove 022 communicating with the plurality of wire passing holes 021 is arranged on the outer peripheral wall of the reinforcing tube 02 to facilitate the exposure of the wire pulling lines inside the reinforcing tube 02. A blade fixing disk 03 and a blade rotating disk 04 are arranged on the outer periphery of the reinforcing tube 02. A plurality of linear guiding grooves 031 are formed on one side edge of the blade fixing disk 03. A plurality of arc-shaped guiding grooves 041 are formed on the side wall of the blade rotating disk 04 facing the blade fixing disk 03. The plurality of arc-shaped guiding grooves 041 and the plurality of linear guiding grooves 031 are arranged in one-to-one correspondence. A plurality of cutting blades 05 are arranged between the blade fixing disk 03 and the blade rotating disk 04. The cutting blades 05 and the exposed wire groove 022 are located in the same plane. A blade guiding rod 051 is connected to the cutting blade 05. One end of the blade guiding rod 051 extends into the linear guiding groove 031 and the other end extends into the corresponding arc-shaped guiding groove 041. During the relative rotation of the blade rotating disk 04 and the blade fixing disk 03 along the axial direction of the reinforcing tube 02, the plurality of cutting blades 05 approach or move away from the exposed wire groove 022 along with the movement of the blade rotating disk 04. When the cutting blades 05 rotate to the exposed wire groove 022, a plurality of wire pulling lines located at the exposed wire groove 022 inside the wire passing holes 021 can be cut simultaneously. Compared with the prior art in which the wire pulling lines connected to the implanting device are cut one by one, the situation where the implanting device is locally stressed and locally unstressed during the wire cutting process is avoided, thereby preventing problems such as tilting, displacement, and bending of the implanting device.

[0043] In this embodiment, six linear guiding grooves 031 are circumferentially and evenly formed on the side of the blade fixing disk 03 close to the blade rotating disk 04. The guiding directions of the six linear guiding grooves 031 are all set in the reverse direction of the radial direction of the blade fixing disk 03 and are not perpendicular to the radial direction of the blade fixing disk 03.

[0044] In this embodiment, six arc-shaped guiding grooves 041 are circumferentially formed on the side of the guiding rotating disk close to the blade fixing disk 03. The six linear guiding grooves 031 and the six arc-shaped guiding grooves 041 are arranged in one-to-one correspondence. The distances from the two end portions of the arc-shaped guiding groove 041 to the center of the blade rotating disk 04 are not equal.

[0045] In this embodiment, the reinforcing tube 02 is fixedly connected to the blade turntable 04. A fixing element 025 is connected to the proximal end of the reinforcing tube 02. The fixing element 025 is sleeved on the outer periphery of the reinforcing tube 02 and is used to fix the blade fixing disk 03 in the handle 01. The fixing element 025 protrudes outward to form a clamping block and is clamped in the handle 01, thereby fixing the blade fixing disk 03 in the handle 01. Six wire passing holes 021 are circumferentially arranged on the reinforcing tube 02. A reinforcing tube central hole 024 through which the pushing tube passes is also provided in the middle of the reinforcing tube 02. The six wire passing holes 021 are circumferentially and uniformly arranged on the outer periphery of the reinforcing tube central hole 024. A wire exposing groove 022 is provided in the middle of the reinforcing tube 02, and a guiding conical surface 023 is also provided on the wire exposing groove 022. With such a design, the blade edge 052 of the cutting blade 05 can more accurately abut against the wire exposing groove 022, and the shearing effect can be improved by the incision of the blade edge 052 and the guiding conical surface 023.

[0046] In this embodiment, six cutting blades 05 are provided and are in a spiral shape. Blade guiding rods 051 are integrally formed on all six cutting blades 05. The two ends of the blade guiding rods 051 on the six cutting blades 05 are respectively inserted into six linear guiding grooves 031 and six arc-shaped guiding grooves 041 in a one-to-one correspondence.

[0047] Specifically, one end of the cutting blade 05 close to the reinforcing tube 02 is provided with an arc-shaped blade edge 052. The arcs of the multiple blade edges 052 are concentric with the wire exposing groove 022. With such a design, all the blade edges 052 can abut against the wire exposing groove without gaps, ensuring that the blade edge 052 completely cuts the wire at the wire exposing groove 022.

[0048] Specifically, the cutting blade 05 has a first arc-shaped side surface on one side of the blade edge 052 and a second arc-shaped side surface on the other side of the blade edge 052. When multiple cutting blades 05 extend into the wire exposing groove 022, the first arc-shaped side surface of the cutting blade 05 matches the second arc-shaped side surface of an adjacent cutting blade 05, and the second arc-shaped side surface of the cutting blade 05 matches the first arc-shaped side surface of another adjacent cutting blade 05. With such a design, the structural compactness is good, and when multiple cutting blades 05 rotate to abut against the wire exposing groove 022, the side surfaces can just be cooperatively butted, avoiding mutual interference and resulting in the inability to cut the wire.

[0049] In this embodiment, a cutting button travel groove 011 is provided on the outer wall of the handle 01, and a cutting button 06 extending outside the cutting button travel groove 011 is connected to the outside of the blade turntable 04.

[0050] The present application also provides an intervention system for delivering a valve repair device, which includes a handle 01, an intervention conduit installed on the handle 01, and a wire pulling device and a wire extracting device sequentially arranged from the distal end to the proximal end within the handle 01. A tangent device is provided at the distal ends of both the wire pulling device and the wire extracting device. The wire pulling device is used to control multiple shaped guiding wires, and the wire extracting device is used to control multiple traction wires. The tangent device at the proximal end of the wire pulling device can synchronously cut multiple shaped guiding wires, and another tangent device at the proximal end of the wire extracting device can synchronously cut multiple traction wires. The wire pulling device, the wire extracting device, and the tangent device are all provided with coaxial central holes extending coaxially. The intervention conduit passes through the coaxial central holes, and the inner cavity of the intervention conduit is used to deliver the implant device.

[0051] In summary, for the tangent device of this intervention system, by providing a reinforcing tube 02 having a plurality of wire passing holes 021 distributed along the axis, a wire exposing groove 022 communicating with the plurality of wire passing holes 021 is provided on the outer peripheral wall of the reinforcing tube 02 to facilitate the exposure of the wires within the reinforcing tube 02; a blade fixing disk 03 and a blade rotating disk 04 are provided on the outer periphery of the reinforcing tube 02. A plurality of linear guiding grooves 031 are formed on one side edge of the blade fixing disk 03, and a plurality of arc-shaped guiding grooves 041 are formed on the side wall of the blade rotating disk 04 facing the blade fixing disk 03. The plurality of arc-shaped guiding grooves 041 and the plurality of linear guiding grooves 031 are arranged in one-to-one correspondence. A plurality of cutting blades 05 are arranged between the blade fixing disk 03 and the blade rotating disk 04. The cutting blades 05 and the wire exposing groove 022 are located in the same plane. A blade guiding rod 051 is connected to the cutting blade 05. One end of the blade guiding rod 051 extends into the linear guiding groove 031, and the other end extends into the corresponding arc-shaped guiding groove 041. During the relative rotation of the blade rotating disk 04 and the blade fixing disk 03 along the axis of the reinforcing tube 02, the plurality of cutting blades 05 approach or move away from the wire exposing groove 022 along with the movement of the blade rotating disk 04. When the cutting blades 05 rotate to the wire exposing groove 022, the plurality of wires located at the wire exposing groove 022 within the wire passing holes 021 can be simultaneously cut; compared with the prior art in which the multiple wires connected to the implant device are cut one by one, it avoids the situation where the implant device is partially stressed and partially unstressed during the wire cutting process, thereby preventing problems such as tilting, displacement, and bending of the implant device.

[0052] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. A tangential device for an interventional system, installed in the inner cavity of a handle (01) and located at the proximal end of a wire pulling device, characterized in that, Comprising: A reinforcing tube (02) with a plurality of wire passing holes (021) extending along its axial direction therein, and the plurality of wire passing holes (021) are arranged circumferentially along the reinforcing tube (02); a wire exposing groove (022) communicating with the plurality of wire passing holes (021) is provided on the outer peripheral wall of the reinforcing tube (02); A blade fixing disc (03) fixed on the handle (01) and sleeved on the outer periphery of the reinforcing tube (02), and a plurality of linear guiding grooves (031) are formed on one side edge of the blade fixing disc (03); A blade rotating disc (04) rotatably sleeved on the outer periphery of the reinforcing tube (02) along the axial direction of the reinforcing tube (02) and oppositely arranged with the blade fixing disc (03); a plurality of arc-shaped guiding grooves (041) are formed on the side wall of the blade rotating disc (04) facing the blade fixing disc (03); the plurality of arc-shaped guiding grooves (041) and the plurality of linear guiding grooves (031) are arranged in one-to-one correspondence; A plurality of cutting blades (05) located between the blade fixing disc (03) and the blade rotating disc (04) and in the same plane as the wire exposing groove (022), and a blade guiding rod (051) is connected thereto; one end of the blade guiding rod (051) extends into the linear guiding groove (031), and the other end extends into the corresponding arc-shaped guiding groove (041); During the rotation of the blade rotating disc (04), the blade guiding rods (051) of the plurality of cutting blades (05) are driven to slide in the linear guiding groove (031) and the arc-shaped guiding groove (041) simultaneously, so that the cutting blades (05) approach or move away from the wire exposing groove (022) on the reinforcing tube (02).

2. The tangential device for an interventional system according to claim 1, characterized in that, The guiding direction of the linear guiding groove (031) is not perpendicular to the radial direction of the blade fixing disc (03).

3. The tangential device for an intervention system according to claim 2, characterized in that, The guiding direction of the linear guiding groove (031) is arranged along the radial direction of the blade fixing disc (03).

4. The tangential device for the intervention system according to claim 1, characterized in that, The distances from the two ends of the arc-shaped guiding groove (041) to the center of the blade rotating disc (04) are not equal.

5. The tangential device for an interventional system according to claim 1, wherein, One end of the cutting blade (05) close to the reinforcing tube (02) is provided with a blade edge (052), and the blade edge (052) is arc-shaped, and the arcs where the plurality of blade edges (052) are located are concentric with the wire exposing groove (022).

6. The tangential device for an interventional system according to claim 5, characterized in that, The cutting blade (05) has a first arc-shaped side surface on one side of the blade edge (052) and a second arc-shaped side surface on the other side of the blade edge (052); when the plurality of cutting blades (05) extend into the wire exposing groove (022), the first arc-shaped side surface of the cutting blade (05) matches the second arc-shaped side surface of an adjacent cutting blade (05), and the second arc-shaped side surface of the cutting blade (05) matches the first arc-shaped side surface of another adjacent cutting blade (05).

7. The tangential device for an interventional system according to claim 6, characterized in that, The cutting blade (05) is in the shape of a propeller.

8. The tangential device for an intervention system according to claim 1, wherein, A guiding conical surface (023) is provided on the wire exposing groove (022).

9. The tangential device for an interventional system according to claim 1, characterized in that, A central hole (024) for the pushing tube to pass through is further formed in the middle of the reinforcing tube (02), and a plurality of the wire passing holes (021) are circumferentially and uniformly arranged on the outer periphery of the central hole (024) of the reinforcing tube.

10. The tangent device for an interventional system according to claim 1, characterized in that, A cutting button travel groove (011) is provided on the outer wall of the handle (01), and a cutting button (06) extending outside the cutting button travel groove (011) is connected to the outer side wall of the blade turntable (04).

11. The tangential device for the interventional system according to claim 1, characterized in that, The A fixing element (025) is connected to the reinforcing tube (02), sleeved on the outer periphery of the reinforcing tube (02) and used for fixing the blade fixing disc (03) in the handle (01).

12. An intervention system for delivering a valve repair device, characterized in that, It includes a handle (01), an intervention pipeline installed on the handle (01), and a tangent device, a wire pulling device, a pushing device and a wire pulling device which are sequentially arranged from the distal end to the proximal end in the handle (01), and the tangent device adopts the tangent device for the intervention system according to any one of claims 1-11.

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