Anchoring equipment

Abstract

The present application provides an anchoring device, which mainly includes a sleeve assembly with a directional channel and an anchoring assembly with an anchoring hook, wherein the anchoring assembly can move axially relative to the sleeve assembly, so that the anchoring hook extends from the sleeve assembly through the directional channel and generates a bending deformation to switch from a non-anchoring state to an anchoring state. In this way, the present application can achieve directional anchoring to achieve the technical effect of precise anchoring.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of medical devices, and in particular to an anchoring device. Background Art

[0002] In interventional surgery, it is often necessary to use anchoring structures to anchor target tissues in order to achieve specific target actions.

[0003] In other specific cases, in order to increase the effectiveness or reliability of anchoring, there are specific directional requirements for the anchoring action, which requires that the anchoring structure needs to have a corresponding guiding structure that can be operated at the proximal end.

[0004] In view of this, there is an urgent need for an anchoring device that can achieve directional anchoring. Summary of the invention

[0005] In view of the above problems, the present application provides an anchoring device to overcome the above problems or at least partially solve the above problems.

[0006] An embodiment of the present application provides an anchoring device, which includes: a sleeve assembly, which has at least one directional channel; and an anchoring assembly, which can be movably inserted into the sleeve assembly and has at least one anchoring hook; wherein, when the anchoring hook is located in the sleeve assembly, it is in a non-anchoring state, and the anchoring assembly can move axially relative to the sleeve assembly, so that the anchoring hook extends from the sleeve assembly through the directional channel and is directional-bent and deformed to switch from the non-anchoring state to the anchoring state.

[0007] Optionally, the sleeve assembly includes a guide tube; and a guide member that can be coupled to the guide tube to define the at least one directional channel inside the guide tube.

[0008] Optionally, the sleeve assembly further includes a sleeve and an auxiliary tube; wherein the guide tube can be connected to the auxiliary tube to define a sleeve groove communicating with the directional channel, and the sleeve can be sleeved in the sleeve groove.

[0009] Optionally, the auxiliary tube further comprises an introduction structure adjacent to the sleeve groove for guiding the sleeve into the sleeve groove; the guide tube and the auxiliary tube are detachably connected to each other by threading.

[0010] Optionally, the sleeve also includes at least one petal body, which extends axially along the sleeve; and an abutment structure, which is provided on the sleeve and located at the root of the petal body; wherein, when the sleeve is sleeved in the sleeve groove, the petal body can enter the directional channel through the sleeve groove until the abutment structure of the sleeve abuts against the guide member.

[0011] Optionally, the anchor assembly includes an actuating rod; an anchor member having at least one anchor hook and a stop structure located at the root of the anchor hook; and an anchor seat, which respectively connects the actuating rod and the anchor member; wherein the actuating rod and the anchor member connected by the anchor seat can be inserted into the sleeve, and the actuating rod can be forced to move axially relative to the sleeve, and drive the anchor hook to move axially relative to the sleeve to pass through the directional channel and extend from the sleeve assembly until the anchor member enters the guide tube and the stop structure abuts the guide member.

[0012] Optionally, when the anchoring member is inserted into the sleeve, the anchoring hook is circumferentially aligned with the valve body.

[0013] Optionally, the actuating rod and the anchoring member are located on opposite sides of the anchoring seat, the anchoring seat and the actuating rod are threadedly connected to each other, and the anchoring member and the actuating rod are sleeved to each other.

[0014] Optionally, when the anchor hook is switched to the anchor state, the anchor seat and the actuating rod, the guide tube and the auxiliary tube can be disengaged, and the sleeve can be pulled out of the sleeve groove to remove the actuating rod, the auxiliary tube and the sleeve.

[0015] Optionally, there are two of the directional channels and two of the anchoring hooks.

[0016] Optionally, the sleeve assembly includes a sleeve having two petals extending along the axial direction of the sleeve and two abutment grooves located between the roots of the two petals; an auxiliary tube; a guide tube, which can be connected to the auxiliary tube to define a sleeve groove; and a guide member, which can be combined with the guide tube to define two directional channels connected to the sleeve groove inside the guide tube; wherein the two petals can respectively enter the two directional channels through the sleeve groove until the two abutment grooves respectively abut the guide members, so that the sleeve is sleeved in the sleeve groove and rides on the guide member.

[0017] Optionally, the two petals are symmetrically arranged on opposite sides of the sleeve, and each of the petals includes a rounded corner structure; the guide member radially penetrates the guide tube to form two symmetrically distributed directional channels inside the guide tube; the two petals can enter the two directional channels respectively through the rounded corner structure.

[0018] Optionally, the anchor assembly includes an actuating rod; an anchor member having two anchor hooks and two stop grooves located between the roots of the two anchor hooks; and an anchor seat, which respectively connects the actuating rod and the anchor member; wherein the actuating rod and the anchor member connected by the anchor seat can be inserted into the sleeve, and the actuating rod can be forced to move axially relative to the sleeve, and drive the two anchor hooks to move axially relative to the sleeve to pass through the two directional channels and extend from the sleeve assembly until the anchor member enters the guide tube and the two stop grooves respectively abut the guide member, so that the anchor member rides on the guide member.

[0019] Alternatively, the anchor hook may be manufactured by performing a cutting process on a tube or a rod.

[0020] Optionally, the anchoring hook is made of a memory alloy material, so that after the anchoring hook extends out of the sleeve assembly, it can be bent and deformed in a predetermined direction to switch to the anchoring state.

[0021] It can be seen from the above technical solution that the anchoring device of the embodiment of the present application is provided with a directional channel so that the anchoring hook can extend from the sleeve assembly through the directional channel and perform the anchoring operation. Thus, the present application can achieve precise directional anchoring to improve the success rate of the operation.

[0022] In addition, the anchoring device of the present application has the advantages of simple structural design and a small number of parts.

[0023] Furthermore, due to the detachable design of the components of the anchoring device of the present application, after the anchoring operation is completed, some components in the anchoring device can be removed to significantly reduce the volume of the anchoring device left in the patient's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of the anchoring device according to an embodiment of the present application, wherein: Figure 1 is a schematic diagram of an anchoring device in an anchoring state, Figure 2 Schematic diagram of an anchoring device in a non-anchored state.

[0026] Figure 3 This is a schematic diagram of the structure of the guide tube of an embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the structure of the guide member of an embodiment of the present application;

[0028] Figure 5A and Figure 5B This is a schematic diagram of the structure of the sleeve according to an embodiment of the present application;

[0029] Figure 6 This is a schematic diagram of the structure of the auxiliary tube of an embodiment of the present application;

[0030] Figure 7 A schematic diagram of the structure of the actuating rod according to an embodiment of the present application;

[0031] Fig. 8A and Figure 8B It is a structural schematic diagram of the anchoring member of the embodiment of the present application in a non-anchored state and an anchored state;

[0032] Fig. 9 This is a schematic diagram of the structure of the anchor seat of an embodiment of the present application;

[0033] Fig. 10A and Fig. 10B Schematic diagram of anchoring members according to different embodiments of the present application;

[0034] Fig.11 and Fig.12 Schematic diagrams of different states of the anchor assembly of the present application being combined into the casing;

[0035] Fig.13 It is a schematic diagram of a state in which a casing combined with an anchoring assembly is sleeved into a sleeve groove formed by an auxiliary tube and a guide tube;

[0036] Fig.14 The schematic diagram shows the state of the anchoring device after the anchoring operation is completed.

[0037] Component number

[0038] 1: Anchoring device;

[0039] 10: casing assembly;

[0040] 102: directional channel;

[0041] 104: casing;

[0042] 1042: Valve body;

[0043] 10422: rounded corner structure;

[0044] 1044: abutment structure;

[0045] 10442: abutment groove;

[0046] 106: auxiliary tube;

[0047] 1062: Import structure;

[0048] 1064: thread structure;

[0049] 108: guide tube;

[0050] 1082: drilling holes;

[0051] 1084: thread structure;

[0052] 110: sleeve slot;

[0053] 112: guide member;

[0054] 1122: guide column;

[0055] 20: anchoring component;

[0056] 202: Anchor hook;

[0057] 204: actuating rod;

[0058] 2042: Screw joint;

[0059] 206: anchoring member;

[0060] 2062: socket connection part;

[0061] 208: stop structure;

[0062] 2082: stop groove;

[0063] 210: anchor seat;

[0064] 2102: Screw joint;

[0065] 2104: socket connection part;

[0066] 2106: Abutting wall. DETAILED DESCRIPTION

[0067] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the embodiments of the present application should fall within the scope of protection of the embodiments of the present application.

[0068] As mentioned in the background technology section, existing medical anchoring devices do not have the function of directional anchoring. In view of this, the present application provides an anchoring device that can effectively improve the above technical issues.

[0069] The specific implementation of the embodiment of the present application will be further explained below in conjunction with the drawings of the embodiment of the present application.

[0070] The anchoring device 1 of the present application can be applied to heart valve interventional repair surgery, but is not limited thereto, and can also be applied to any other surgical operation that requires tissue-directional anchoring.

[0071] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of the anchoring device 1 according to an embodiment of the present application, wherein: Figure 1 This is a schematic diagram of the anchoring device 1 of the embodiment of the present application in a non-anchored state. Figure 2 This is a schematic diagram of the anchoring device 1 according to an embodiment of the present application in an anchoring state.

[0072] As shown in the figure, the anchoring device 1 of the embodiment of the present application mainly includes a sleeve assembly 10 and an anchoring assembly 20.

[0073] The sleeve assembly 10 has at least one directional channel 102 . The anchor assembly 20 is movably disposed in the sleeve assembly 10 and includes at least one anchor hook 202 .

[0074] In this embodiment, the number of the directional channels 102 corresponds to the number of the anchor hooks 202 .

[0075] Preferably, there are two directional channels 102 and two anchor hooks 202 .

[0076] The anchor assembly 20 can move axially relative to the sleeve assembly 10, so that the anchor hook 202 extends from the sleeve assembly 10 through the directional channel 102 and is directional and bent to change from a non-anchored state (i.e. Figure 1 state) to the anchored state (i.e. Figure 2 status shown).

[0077] In this embodiment, when the anchor hook 202 is inserted into the sleeve assembly 10, it is in a non-anchored state. When the anchor hook 202 extends out of the sleeve assembly 10, it can bend and deform to switch from the non-anchored state to the anchored state.

[0078] In this embodiment, the two anchoring hooks 202 inserted in the sleeve assembly 10 can be respectively aligned with the two directional channels 102 in the circumferential direction, so that each anchoring hook 202 can be extended from the sleeve assembly 10 through the corresponding directional channels 102 and deformed in a directional manner. In this way, the anchoring device 1 of the embodiment of the present application can achieve the technical effect of directional hooking to anchor the target tissue.

[0079] Optionally, the sleeve assembly 10 includes a sleeve 104 , an auxiliary tube 106 , a guide tube 108 , and a guide member 112 .

[0080] The guide member 112 may be coupled to the guide tube 108 to define the orientation channel 102 inside the guide tube 108 .

[0081] like Figure 3 and Figure 4 As shown, in this embodiment, the guide member 112 is a guide column 1122 radially penetrating the guide tube 108 to form two symmetrically distributed directional channels 102 inside the guide tube 108 .

[0082] For example, two through holes 1082 may be formed on the side walls of the guide tube 108 on opposite sides along the radial direction of the guide tube 108, so that the guide posts 1122 are inserted into the two through holes 1082, thereby dividing the internal passage of the guide tube 108 into two symmetrically distributed directional channels 102 (see Fig.13 ).

[0083] It should be noted that the guide member 112 is not limited to the above-mentioned guide column 1122, and it can be different according to the number of directional channels 102 required to be formed in the guide tube 108, and the present application does not impose any limitation on this.

[0084] The guide tube 108 can be connected to the auxiliary tube 106 to define a sleeve groove 110 (see Fig.13 ), so that the sleeve 104 is sleeved in the sleeve groove 110 formed by the guide tube 108 and the auxiliary tube 106 (refer to Figure 1 , Figure 2 ).

[0085] Optionally, a thread structure 1084 may be provided on the guide tube 108, and a thread structure 1064 may be provided on the auxiliary tube 106, wherein the thread structure 1084 and the thread structure 1064 are respectively internal threads and external threads of matching structures, so as to provide the guide tube 108 and the auxiliary tube 106 to be detachably connected to each other by screw connection to form the sleeve groove 110. It should be noted that the connection method between the guide tube 108 and the auxiliary tube 106 is not limited to the above-mentioned screw connection method, and other methods (such as clamping, etc.) can also be used to connect to each other.

[0086] Optionally, the auxiliary tube 106 may include an introduction structure 1062 adjacent to the sleeve groove 110 (see Figure 6 ) is used to guide the sleeve 104 into the sleeve groove 110.

[0087] In this embodiment, the introduction structure 1062 is an inclined surface formed on the auxiliary tube 106 , so that the entrance of the sleeve groove 110 presents a bell-mouth shape, thereby facilitating the sleeve 104 to enter the sleeve groove 110 .

[0088] Optionally, the sleeve 104 may include at least one petal body 1042 extending along the axial direction of the sleeve 104 and an abutment structure 1044 provided on the sleeve 104 and located at the root of the petal body 1042 .

[0089] In this embodiment, the flap 1042 of the sleeve 104 can enter the directional channel 102 through the sleeve groove 110 (refer to Figure 1 and Figure 2 ) until the abutment structure 1044 of the sleeve 104 abuts against the guide member 112, so that the sleeve 104 is sleeved in the sleeve groove 110.

[0090] refer to Figure 5A and Figure 5B In this embodiment, the sleeve 104 has two petals 1042 extending along its axial direction, wherein the two petals 1042 may be symmetrically distributed; furthermore, the abutment structure 1044 may include two abutment grooves 10442 located between the roots of the two petals 1042 (refer to Figure 5B Thus, the embodiment of the present application can use the two symmetrically distributed petals 1042 and the two abutment grooves 10442 to allow the sleeve 104 to be sleeved in the sleeve groove 110 and ride on the guide column 1122, thereby improving the structural stability between the sleeve 104 and the guide tube 108.

[0091] Optionally, the top of each petal body 1042 also includes a rounded structure 10422, so that each petal body 1042 can enter its own directional channel 102 through the rounded structure 10422, that is, it is convenient for the guide member 112 to move smoothly from the top of the petal body 1042 to the abutment groove 10442 at the root of the petal body 1042 through the rounded structure 10422.

[0092] Optionally, the anchor assembly 20 includes an actuating rod 204 , an anchor member 206 , and an anchor seat 210 .

[0093] The anchoring member 206 has at least one anchoring hook 202 and a stopper structure 208 disposed on the anchoring member 206 and located at the root of the anchoring hook 202 .

[0094] Optionally, the anchoring member 206 may include two symmetrically distributed anchoring hooks 202 .

[0095] Preferably, each anchoring hook 202 has a pointed top to facilitate anchoring to the target tissue.

[0096] Optionally, the anchor 206 may be secured to the tubing (see Fig. 8A , Figure 8B , Fig. 10A ) or rods (reference Fig. 10B ) is made by performing a cutting process.

[0097] Optionally, the anchoring hook 202 (or anchoring member 206) is made of a memory alloy material (such as nickel-titanium alloy), so that after each anchoring hook 202 extends from the sleeve assembly 10, it can bend and deform along a predetermined direction to switch from a non-anchored state to an anchored state.

[0098] Optionally, the anchor hook 202 may be manufactured by a heat treatment shaping process, for example, by using a processing temperature of 530° C. and a processing time of 5 minutes. However, this is not limited to the above processing temperature and processing time parameters, which may be adjusted arbitrarily according to specific manufacturing requirements, and this application does not limit this.

[0099] The anchor seat 210 is used to connect the actuating rod 204 and the anchor member 206 respectively.

[0100] In this embodiment, the actuating rod 204 and the anchoring member 206 are located on opposite sides of the anchoring seat 210, wherein the anchoring seat 210 and the actuating rod 204 can be connected to each other by screw connection, and the anchoring member 206 and the actuating rod 204 can be connected to each other by sleeve connection.

[0101] Optionally, a screw connection portion 2102 may be provided on the anchor seat 210 and the actuating rod 204, respectively (see Fig. 9 ) and the screw connection portion 2042 (reference Figure 7 ) so that the anchor seat 210 and the actuating rod 204 can be threadedly connected to each other.

[0102] Optionally, a sleeve portion 2104 may be provided on the anchor seat 210 and the anchor member 206, respectively (see Fig. 9 ) and the socket portion 2062 (reference Fig. 8A and Figure 8B ) so that the anchor seat 210 and the anchor member 206 can be connected to each other.

[0103] Optionally, an abutment wall 2106 adjacent to the sleeve portion 2104 may be further provided on the anchor seat 210 to limit the sleeve depth between the anchor seat 210 and the anchor member 206 .

[0104] It should be noted that the actuating rod 204, the anchoring member 206 and the anchoring seat 210 may also be detachably connected to each other in other ways, and the present application does not impose any limitation on this.

[0105] In this embodiment, the actuating rod 204 and the anchor 206 connected by the anchor seat 210 can be inserted into the sleeve 104, and the actuating rod 204 can be forced to move axially relative to the sleeve 104 to drive the anchor hook 202 to move axially relative to the sleeve 106, and pass through the directional channel 102 and extend from the sleeve assembly 10 (that is, the directional channel 102 of the guide tube 108) until the stop structure 208 of the anchor assembly 20 abuts against the guide member 112 of the sleeve assembly 10.

[0106] In this embodiment, the number of anchor hooks 202 and petal bodies 1042 corresponds to each other, wherein when the anchor member 206 is inserted into the sleeve 104, each anchor hook 202 is circumferentially aligned with each petal body 1042, so that each anchor hook 202 can be circumferentially aligned with each directional channel 102, thereby facilitating each anchor hook 202 to extend from the sleeve assembly 10 through each directional channel 102 and perform a directional anchoring operation.

[0107] In one embodiment, the anchoring member 206 has two symmetrically distributed anchoring hooks 202 and two stop grooves 2082 located between the roots of the two anchoring hooks 202 .

[0108] When the actuating rod 204 is forced to move axially relative to the sleeve 104, the two anchor hooks 202 can be driven to move axially relative to the sleeve 104 and pass through the two directional channels 102 to extend from the sleeve assembly 10 until the anchor 206 enters the guide tube 108 and the two stop grooves 2082 respectively abut against the guide member 112, so that the anchor 206 rides on the guide member 112 (refer to Figure 1 , Fig.14 status shown).

[0109] In the present embodiment, since the guide tube 108 and the auxiliary tube 106, and the actuator rod 204 and the anchor seat 210 are all detachably connected, after the anchor hook 202 is switched to the anchoring state (that is, after the anchor hook 202 completes the directional anchoring operation on the target tissue), the connection relationship between the anchor seat 210 and the actuator rod 204 can be firstly disconnected, and then the connection relationship between the guide tube 108 and the auxiliary tube 106 can be disconnected, and finally the sleeve 104 can be pulled out from the sleeve groove 110, so as to remove the actuator rod 204, the auxiliary tube 106 and the sleeve 104 in turn, and only the guide tube 108, the guide member 112, the anchor member 206 and the anchor seat 210 are retained in the patient's body (refer to Fig.14 The state shown) can be achieved, thereby reducing the volume of the anchoring device left in the patient's body.

[0110] Furthermore, the method for using the anchoring device of the embodiment of the present application mainly includes:

[0111] Step 1: Use the anchor seat 210 to respectively connect the actuating rod 204 and the anchor member 206 to form the anchor assembly 10 , and connect the auxiliary tube 106 and the guide tube 108 to form the sleeve groove 110 .

[0112] Step 2: insert the anchor assembly 10 into the casing 104 (refer to Fig.11 ) until the anchor hook 202 partially enters the sleeve 104 completely, and each anchor hook 202 is aligned circumferentially with each petal body 1042 of the sleeve 104 (refer to Figure 11 to Figure 12 ).

[0113] Step 3: sleeve the sleeve 104 in the sleeve groove 110 formed by the auxiliary tube 106 and the guide tube 108 (refer to Fig.13 ), and the petal body 1042 of the sleeve 104 enters the directional channel 102 through the sleeve groove 110 until the abutment structure 1044 of the sleeve 104 abuts the guide member 112 (refer to Figure 2 ).

[0114] Step 4, applying a force to the actuator rod 204 to make it move axially relative to the sleeve 104, and driving the anchor member 206 to move axially relative to the sleeve 104 synchronously via the anchor seat 210, so that each anchor hook 202 can extend from the guide tube 108 of the sleeve assembly 10 through each directional channel 102 in the guide tube 108 and bend and deform in a directional manner to switch from the non-anchored state to the anchored state (refer to Figure 1 ).

[0115] Step 5, disconnect the connection between the anchor seat 210 and the actuating rod 204, disconnect the connection between the guide tube 108 and the auxiliary tube 106, and finally remove the sleeve 104 from the sleeve groove 110 to remove the actuating rod 204, the auxiliary tube 106 and the sleeve 104 in sequence, leaving only the guide tube 108, the guide member 112, the anchor member 206 (including the anchor hook 202) and the anchor seat 210 in the patient's body (refer to Fig.14 ).

[0116] In summary, the anchoring device provided in the embodiment of the present application can control the orientation of the anchoring hook and its bending deformation by means of the structural design of the directional channel, thereby achieving precise directional anchoring operation.

[0117] Furthermore, the anchoring device provided in the embodiment of the present application has the advantages of simple structural design and fewer parts.

[0118] In addition, the anchoring device provided in the embodiment of the present application can remove the actuating rod, auxiliary tube and sleeve parts of the anchoring device by successively disengaging the connection relationship between the anchoring seat and the actuating rod and the guide tube and the auxiliary tube after the anchoring hook completes the directional anchoring operation, and only retain the guide tube, guide member, anchoring seat and anchoring member in the patient's body, thereby reducing the volume of the anchoring device left in the patient's body to improve the patient's usage experience.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An anchoring device, characterized in that: include: a cannula assembly having at least one directional passage; as well as An anchoring assembly, which is movably disposed in the sleeve assembly and has at least one anchoring hook; Wherein, when the anchor hook is located in the sleeve assembly, it is in a non-anchored state, and the anchor assembly can move axially relative to the sleeve assembly, so that the anchor hook extends from the sleeve assembly through the directional channel and is directional and bent to be deformed, so as to switch from the non-anchored state to the anchored state; The sleeve assembly comprises: Guide tube; a guide member, which can be coupled to the guide tube to define the at least one directional channel inside the guide tube; Casing; and Auxiliary pipe; Wherein, the guide tube can be connected to the auxiliary tube to define a sleeve groove communicating with the directional channel, and the sleeve can be sleeved in the sleeve groove; The auxiliary tube further comprises an introduction structure adjacent to the sleeve groove, for guiding the sleeve into the sleeve groove; The guide tube and the auxiliary tube are detachably connected to each other; The sleeve also includes: at least one petal extending in the axial direction of the sleeve; and an abutment structure, which is provided on the sleeve and located at the root of the valve body; Wherein, when the sleeve is sleeved in the sleeve groove, the petal body can enter the directional channel through the sleeve groove until the abutment structure of the sleeve abuts against the guide member; The anchor assembly comprises: Actuating rod; An anchoring member, comprising the at least one anchoring hook and a stopper structure located at the root of the anchoring hook; and Anchor seats, which are respectively connected to the actuating rod and the anchor member, Among them, the actuating rod and the anchor member connected by the anchor seat can be inserted into the sleeve, and the actuating rod can be forced to move axially relative to the sleeve, and drive the anchor hook to move axially relative to the sleeve to pass through the directional channel and extend from the sleeve assembly until the anchor member enters the guide tube and the stop structure abuts the guide member.

2. The anchoring device according to claim 1, characterized in that: When the anchor is inserted into the sleeve, the anchor hook is aligned with the valve body in the circumferential direction.

3. The anchoring device according to claim 1, characterized in that: The actuating rod and the anchoring member are located on opposite sides of the anchoring seat, the anchoring seat and the actuating rod are threadedly connected to each other, and the anchoring member and the actuating rod are sleeved to each other.

4. The anchoring device according to claim 1, characterized in that: When the anchor hook is switched to the anchoring state, the anchor seat and the actuating rod, the guide tube and the auxiliary tube can be separated, and the sleeve can be pulled out from the sleeve groove to remove the actuating rod, the auxiliary tube and the sleeve.

5. The anchoring device according to claim 1, characterized in that: The number of the directional channels and the number of the anchoring hooks are two each.

6. The anchoring device according to claim 5, characterized in that: The sleeve assembly comprises: A sleeve having two petals extending along the axial direction of the sleeve and two abutment grooves located between the roots of the two petals; Auxiliary pipe; a guide tube connectable to the auxiliary tube to define a sheathing groove; and A guide member, which can be coupled to the guide tube to define two directional channels communicating with the sleeve grooves inside the guide tube; The two petals can respectively enter the two directional channels through the sleeve grooves until the two abutment grooves respectively abut the guide members, so that the sleeve is sleeved in the sleeve grooves and rides on the guide members.

7. The anchoring device according to claim 6, characterized in that: The two petals are symmetrically arranged on opposite sides of the sleeve, and each of the petals includes a rounded corner structure; The guide member radially penetrates the guide tube to form two symmetrically distributed directional channels inside the guide tube; The two petals can respectively enter the two directional channels through the rounded corner structure.

8. The anchoring device according to claim 6, characterized in that: The anchor assembly comprises: Actuating rod; An anchoring member having two anchoring hooks and two stop grooves located between the roots of the two anchoring hooks; and An anchoring seat, which is respectively connected to the actuating rod and the anchoring member; Among them, the actuating rod and the anchor member connected by the anchor seat can be inserted into the sleeve, and the actuating rod can be forced to move axially relative to the sleeve, and drive the two anchor hooks to move axially relative to the sleeve to pass through the two directional channels and extend from the sleeve assembly until the anchor member enters the guide tube and the two stop grooves respectively abut the guide member, so that the anchor member rides on the guide member.

9. The anchoring device according to claim 1, characterized in that: The anchor hook may be manufactured by performing a cutting process on a tube or a rod.

10. The anchoring device according to claim 1, characterized in that: The anchoring hook is made of a memory alloy material, so that after the anchoring hook extends out of the sleeve assembly, it can be bent and deformed along a predetermined direction to switch to the anchoring state.

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