A device for placing an anchor in annular tissue

Abstract

Embodiments of the present application relate to the field of implantable prostheses, and particularly to a device suitable for setting an anchor on a valve annulus tissue. The device comprises a locking wire assembly, a winding member, an anti-loosening member and a limiting member. The locking wire assembly is used to pull the anchor, and the locking wire assembly can be partially wound on the winding member when the winding member rotates. The anti-loosening member is used to prevent the locking wire assembly wound on the winding member from being separated from the winding member. The limiting member is used to drive the winding member to rotate and limit the movement of the anti-loosening member. The device provided by the embodiments of the present application changes the length of the locking wire assembly by winding the locking wire assembly on the winding member, thereby pulling the anchor set on the valve annulus tissue to repair the valve annulus tissue. At the same time, by preventing the locking wire assembly wound on the winding member from being separated from the winding member and limiting the movement of the anti-loosening member, it is ensured that the locking wire assembly wound on the winding member will not be separated from the winding member, thereby ensuring that the locking wire assembly can pull the anchor and ensuring the repair effect.

Description

Technical Field

[0001] Embodiments of this application relate to the field of implantable prostheses, and more specifically to a device suitable for placing anchors on valve annulus tissue. Background Technology

[0002] The statements herein are provided merely as background information in connection with this application and do not necessarily constitute prior art.

[0003] Mitral regurgitation is a common heart valve disorder. Patients with mitral regurgitation may experience various symptoms of weakness, and if left untreated, it can even lead to death. Therefore, it is necessary to treat mitral regurgitation appropriately.

[0004] Currently, appropriate repair devices are typically used to screw anchors into the annular tissue of the heart valve to repair the annular tissue and treat mitral regurgitation. However, there are still many problems in the process of screwing anchors into the annular tissue using appropriate repair devices. Summary of the Invention

[0005] A brief overview of this application is provided below to offer a basic understanding of certain aspects thereof. It should be understood that this overview is not an exhaustive summary of the application. It is not intended to identify key or essential parts of the application, nor is it intended to limit its scope. Its purpose is merely to present certain concepts in a simplified form as a prelude to the more detailed description that follows.

[0006] To address the aforementioned issues, embodiments of this application provide a device suitable for placing anchors on annular tissue.

[0007] The embodiments of this application provide an apparatus for placing anchors on annular tissue, comprising a locking wire assembly, a winding member, an anti-loosening member, and a limiting member. The locking wire assembly is used to pull the anchors disposed on the annular tissue, changing the relative distance between the anchors; the winding member is configured such that the locking wire assembly can be partially wound around the winding member when the winding member rotates, so that the locking wire assembly can pull the anchors; the anti-loosening member is used to prevent the locking wire assembly wound on the winding member from detaching from the winding member; the limiting member is used to drive the winding member to rotate and to limit the movement of the anti-loosening member.

[0008] The embodiments of this application provide an apparatus suitable for placing anchors on the annular tissue. By winding a locking wire assembly around a winding member, the length of the locking wire assembly is changed, thereby pulling the anchor connected to the locking wire assembly to repair the annular tissue. At the same time, by setting anti-loosening members and limiting members, the locking wire assembly wound on the winding member is prevented from detaching from the winding member and the movement of the anti-loosening members is restricted, ensuring that the locking wire assembly wound on the winding member will not detach from the winding member, thereby ensuring that the locking wire assembly can pull the anchor and guaranteeing the repair effect. Attached Figure Description

[0009] Other objects and advantages of this application will become apparent from the following description of embodiments of this application with reference to the accompanying drawings, and will help to provide a comprehensive understanding of this application.

[0010] Figure 1 This is a schematic diagram of a device for placing anchors on annular tissue, provided by an embodiment of this application.

[0011] Figure 2 yes Figure 1 The diagram shows the structure of the anchor drive assembly, anchor fixing assembly, and mounting components after assembly.

[0012] Figure 3 yes Figure 1 The diagram shows the structure of the anchor fixing assembly, adjustment parts, and mounting parts after assembly.

[0013] Figure 4 yes Figure 2 The diagram shows the structure of the regulating housing.

[0014] Figure 5 yes Figure 1 A magnified view of region A in the diagram.

[0015] Figure 6 yes Figure 5 The diagram shows a cross-sectional view of the assembled winding component, anti-loosening component, and limiting component.

[0016] Explanation of reference numerals in the attached figures:

[0017] 100. A device suitable for placing anchors in annular tissue; 1001. Anchor;

[0018] 10. First housing; 11. Mounting housing; 12. Observation housing; 120. Observation window; 13. Auxiliary housing;

[0019] 20. Anchor drive assembly; 21. Anchor drive component; 211. Drive body; 212. Anchor drive unit;

[0020] 22. Driving component adjustment parts;

[0021] 221. Drive component adjustment section; 222. Drive component mounting section; 2221. First part; 2222. Second part;

[0022] 23. Bending control component; 231. Second housing; 2310. First mating part;

[0023] 232. Bending control part; 233. Limiting part; 2330. Second mating part;

[0024] 24. Drive control component; 241. Adjustment housing; 2411. Axial groove; 2412. Radial groove;

[0025] 242. Adjusting handle; 243. Adjusting limit piece;

[0026] 25. Positioning and adjusting parts; 250. Positioning pins;

[0027] 30. Anchor bolt fixing assembly; 31. Anchor bolt fastener; 32. Fixing and mounting components;

[0028] 33. Limiting component; 331. Connecting part; 332. Limiting part; 333. Limiting mating part;

[0029] 40. Adjustment parts; 50. Mounting parts;

[0030] 60. Locking wire assembly; 61. Locking wire; 62. Locking wire component; 6201. Locking hole; 6202. Guide hole;

[0031] 70. Wire winding component; 71. Wire winding section; 710. Wire winding hole; 72. Limiting mating part; 721. Extension section; 722. Connecting section; 73. Anti-rotation mating part;

[0032] 80. Anti-loosening component; 81. Anti-loosening body; 8101. Receiving cavity; 8102. Relief part;

[0033] 82. Anti-loosening limiting part; 820. Passageway;

[0034] 90. Limiting component; 901. Anti-rotation component.

[0035] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0036] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0037] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0038] After the anchor is screwed into the annular tissue, a locking wire connected to the anchor is wound around it to pull the anchor and the annular tissue, thereby repairing the annular tissue. When winding the locking wire, a corresponding locking device is usually used to lock the wound locking wire to prevent the locking wire from loosening, so as to ensure that the anchor can be pulled. In related technologies, there is a problem that the locking device is difficult to lock the locking wire, which makes the locking wire easy to loosen, making it impossible to effectively pull the anchor and resulting in poor repair effect of the annular tissue.

[0039] To address the aforementioned issues, embodiments of this application provide a device suitable for placing anchors on annular tissue.

[0040] See Figure 1 and Figure 5 , Figure 1 This is a schematic diagram of the structure of a device 100 for placing an anchor 1001 on the annular tissue, provided in an embodiment of this application. Figure 5 yes Figure 1 The enlarged schematic diagram of region A in the figure shows that the device 100 (hereinafter referred to as device 100) provided in the embodiments of this application for setting anchors on the annular tissue may include a locking wire assembly 60, a winding member 70, an anti-loosening member 80, and a limiting member 90. The locking wire assembly 60 is used to pull the anchors 1001 set on the annular tissue, changing the relative distance between the anchors 1001; the winding member 70 is configured such that the locking wire assembly 60 can be partially wound around the winding member 70 when the winding member 70 rotates, so that the locking wire assembly 60 can pull the anchors 1001; the anti-loosening member 80 is used to prevent the locking wire assembly 60 wound on the winding member 70 from detaching from the winding member 70; the limiting member 90 is used to drive the winding member 70 to rotate and to limit the movement of the anti-loosening member 80.

[0041] The device 100 provided in the embodiments of this application repairs the annular tissue by winding the locking wire assembly 60 around the winding member 70, thereby changing the length of the locking wire assembly 60 and pulling the anchor 1001 connected to the locking wire assembly 60. At the same time, by providing the anti-loosening member 80 and the limiting member 90, the device prevents the locking wire assembly 60 wound on the winding member 70 from detaching from the winding member 70 and limits the movement of the anti-loosening member 80, respectively, ensuring that the locking wire assembly 60 wound on the winding member 70 will not detach from the winding member 70, thereby ensuring that the locking wire assembly 60 can pull the anchor 1001 and guaranteeing the repair effect.

[0042] In some embodiments, the anti-loosening member 80 may be configured to allow the winding member 70 to enter and to prevent the winding member 70 from leaving the anti-loosening member 80. In such an embodiment, by allowing the winding member 70 to enter the anti-loosening member 80 and preventing the winding member 70 from leaving the anti-loosening member 80, the anti-loosening member 80 can restrict the movement of the locking wire assembly 60 wound on the winding member 70, thereby preventing the locking wire assembly from detaching from the winding member 70.

[0043] In some embodiments, the winding member 70 passes through the anti-loosening member 80 and is configured to be axially movable relative to the anti-loosening member 80 so that the winding member 70 enters the anti-loosening member 80.

[0044] In some embodiments, when the winding member 70 rotates to cause the locking wire assembly 60 to be wound around the winding member 70, the winding member 70 is located outside the anti-loosening member 80; after the winding member 70 has finished rotating, the winding member 70 moves toward the anti-loosening member 80 and enters the anti-loosening member 80.

[0045] See Figure 6 , Figure 6 yes Figure 5 The diagram shows the assembled structure of the winding member 70, the anti-loosening member 80, and the limiting member 90. In some embodiments, the anti-loosening member 80 may include an anti-loosening body 81 and an anti-loosening limiting part 82. The anti-loosening limiting part 82 is disposed on the anti-loosening body 81, which is configured to allow the winding member 70 to enter, and the anti-loosening limiting part 82 is configured to prevent the winding member 70 from leaving the anti-loosening body 81. In such embodiments, the anti-loosening limiting part 82 prevents the winding member 70 from leaving the anti-loosening body 81, ensuring that the winding member 70 remains on the anti-loosening body 81, and ensuring that the anti-loosening body 81 can restrict the movement of the locking wire assembly 60 wound on the winding member 70.

[0046] See Figure 5 and Figure 6In some embodiments, the anti-loosening body 81 may be configured to form a receiving cavity 8101 and a relief portion 8102 communicating with the receiving cavity 8101. The receiving cavity 8101 is configured to allow the winding member 70 and a portion of the locking wire assembly 60 wound around the winding member 70 to enter. The relief portion 8102 is configured to allow a portion of the locking wire assembly 60 not wound around the winding member 70 to extend outside the receiving cavity 8101. The anti-loosening limiting portion 82 is configured to prevent the winding member 70 that has entered the receiving cavity 8101 from leaving the receiving cavity 8101. In this embodiment, by allowing the winding member 70 and the portion of the locking wire assembly 60 wrapped around the winding member 70 to enter the receiving cavity 8101, and by allowing the portion of the locking wire assembly 60 not wrapped around the winding member 70 to extend outside the receiving cavity 8101 through the relief portion 8102, it is possible to ensure that the anti-loosening body 81 can prevent the locking wire assembly 60 entering the receiving cavity 8101 from detaching from the winding member 70, and also to avoid excessive pulling of the locking wire assembly 60, thereby avoiding excessive pulling of the anchor 1001, which is beneficial to ensuring patient safety.

[0047] See Figure 6 In some embodiments, the anti-loosening limiting part 82 can be a protrusion extending from the circumference of the anti-loosening body 81 towards the center of the anti-loosening body 81. The protrusion 82 can form a channel 820 for the winding member 70 to pass through. When the winding member 70 enters the receiving cavity 8101, the winding member 70 can pass through the channel 820 and abut against the end of the protrusion 82 away from the winding member 70, so as to prevent the winding member 70 from leaving the receiving cavity 8101. In such embodiments, the above-mentioned arrangement can both avoid affecting the movement of the winding member 70 and ensure that the winding member 70 can enter the receiving cavity 8101, and also ensure that the winding member 70 entering the receiving cavity 8101 can be prevented from leaving the receiving cavity 8101 due to misoperation.

[0048] See Figure 6 In some embodiments, the winding member 70 may include a winding portion 71 and a limiting engagement portion 72. The winding portion 71 is configured such that the locking wire assembly 60 can be partially wound around the winding portion 71 when the winding portion 71 rotates, and the winding portion 71 is configured to enter the receiving cavity 8101. The limiting engagement portion 72 is disposed inside the winding portion 71 and is configured to extend outside the winding portion 71. The limiting engagement portion 72 is used to abut against the anti-loosening limiting portion 82 to prevent the winding portion 71 that has entered the receiving cavity 8101 from leaving the receiving cavity 8101. In such embodiments, the abutment engagement between the limiting engagement portion 72 and the anti-loosening limiting portion 82 further prevents the winding portion 71 from leaving the receiving cavity 8101, which helps to ensure that the locking wire assembly 60 wound around the winding portion 71 will not detach from the winding portion 71.

[0049] In some embodiments, the locking wire assembly 60 is partially wound around the winding portion 71, and the portion of the locking wire assembly 60 not wound around the winding portion 71 extends out of the receiving cavity 8101 through the relief portion 8102.

[0050] In some embodiments, the maximum diameter of the limiting engagement portion 72 is larger than the diameter of the channel 820, and the limiting engagement portion 72 is configured to be elastic. In such an embodiment, the above configuration allows the limiting engagement portion 72 to pass through the channel 820 and to abut against the end of the protrusion 82 away from the winding member 70 after passing through the channel 820.

[0051] See Figure 6 In some embodiments, the limiting engagement portion 72 may include two extension segments 721 and a connecting segment 722 connecting the two extension segments 721. The connecting segment 722 is disposed within the winding portion 71, and the two extension segments 721 are configured to extend beyond the winding portion 71. The two extension segments 721 are also configured to be elastic, allowing the distance between the two extension segments 721 to change, so that the two extension segments 721 can abut against the end of the anti-loosening limiting portion 82 away from the winding portion 71 after passing through the channel 820. In such an embodiment, the elasticity of the two extension segments 721 allows them to be compressed when passing through the channel 820, thereby reducing the distance between the two extension segments 721 and allowing them to pass through the channel 820; at the same time, because the two extension segments 721 are elastic, they can return to their original distance after passing through the channel 820 to abut against the end of the anti-loosening limiting portion 82 away from the winding portion 71, thereby restricting the winding portion 71 from leaving the receiving cavity 8101.

[0052] In some embodiments, the two extensions 721 are configured to extend obliquely in a direction away from the anti-loosening body 81, such that the limiting mating portion 72 is V-shaped.

[0053] In some embodiments, the limiting member 90 may be configured to abut against the anti-loosening member 80 to restrict the movement of the anti-loosening member 80; the limiting member 90 may also be configured to circumferentially limit the winding member 70, and the rotation of the limiting member 90 may cause the winding member 70 to rotate. In such an embodiment, the limiting member 90 restricts the movement of the anti-loosening member 80 to prevent the winding member 70 from leaving the anti-loosening member 80 due to movement of the anti-loosening member 80, so that the winding member 70 is always located within the anti-loosening member 80; and the limiting member 90 causes the winding member 70 to rotate so that the locking wire assembly 60 can be wound around the winding member 70.

[0054] See Figure 5In some embodiments, the limiting member 90 is further configured to form an anti-rotation portion 901, and the winding member 70 is provided with an anti-rotation engagement portion 73. Through the cooperation of the anti-rotation portion 901 and the anti-rotation engagement portion 73, the circumferential rotation of the winding member 70 relative to the limiting member 90 is restricted after the winding member 70 enters the anti-loosening member 80. In such embodiments, the cooperation of the anti-rotation portion 901 and the anti-rotation engagement portion 73 effectively restricts the circumferential rotation of the winding member 70 relative to the limiting member 90, so that rotation of the limiting member 90 can drive rotation of the winding member 70.

[0055] The anti-rotation part 901 can be a groove formed at one end of the anti-rotation part 901 near the winding member 70 and extending along the axial direction of the anti-rotation part 901. The anti-rotation mating part 73 can be a protrusion provided on the circumferential sidewall of the winding part 71.

[0056] In some embodiments, when the winding portion 71 enters the receiving cavity 8101, the protrusion 73 can enter the groove 901 to restrict the rotation of the winding member 70 relative to the limiting member 90.

[0057] In some embodiments, the locking wire assembly 60 may include a locking wire 61 and two locking wire members 62. One end of the locking wire 61 is connected to one locking wire member 62, and the other end of the locking wire 61 is connected to the other locking wire member 62 after passing through the winding member 70, so that the locking wire 61 can be wound around the winding member 70 when the winding member 70 rotates. Each locking wire member 62 forms a locking hole 6201, through which the locking wire 61 is connected to the locking wire member 62.

[0058] In some embodiments, the winding portion 71 of the winding member 70 forms a winding hole 710, through which the locking wire 61 can pass.

[0059] In some embodiments, the suture member 62 further forms a plurality of guide holes 6202 for guiding the anchor 1001 into the annular tissue. The plurality of guide holes 6202 are arranged at intervals along the extension direction of the suture member 62, and the anchor 1001 is slidable between the plurality of guide holes 6202 to guide the anchor 1001 into the annular tissue.

[0060] In some embodiments, the locking wire 61 is partially wound around the winding portion 71, and the locking wire 61 not wound around the winding portion 71 extends to the outside of the receiving cavity 8101 after passing through the relief portion 8102.

[0061] In some embodiments, the locking wire 61 not wound around the winding portion 71 can pass radially through the relief portion 8102. In some embodiments, the relief portion 8102 can be a groove formed at one end of the anti-loosening body 81 near the winding member 70 and extending axially along the anti-loosening body 81.

[0062] In related technologies, the movement distance of the anchor is usually determined based on the image obtained by ultrasound scanning, and then the position of the anchor entering the valve annulus tissue is determined. However, since the image obtained by ultrasound scanning is difficult to accurately determine the movement distance of the anchor, it is difficult to precisely control the position of the anchor entering the valve annulus tissue.

[0063] For the above issues, please refer to Figure 1 In some embodiments, the device 100 may further include a first housing 10, an anchor drive assembly 20, an anchor fixing assembly 30, an adjustment member 40, and a mounting member 50. The adjustment member 40 is configured to pass through the mounting member 50 and be movably mounted on the first housing 10. The adjustment member 40 is fixedly connected to the mounting member 50 and can drive the mounting member 50 to move along the direction of extension of the adjustment member 40. The anchor drive assembly 20 is configured to extend through the first housing 10 and drive the anchor 1001 into the annular tissue. The anchor fixing assembly 30 is configured to extend through the first housing 10 and fix the anchor 1001 entering the annular tissue to the annular tissue. The anchor drive assembly 20 and the anchor fixing assembly 30 are respectively mounted on the mounting member 50. Movement of the mounting member 50 along the direction of extension of the adjustment member 40 can drive the anchor drive assembly 20 and the anchor fixing assembly 30 to move. The first housing 10 is configured such that the distance moved by the anchor drive assembly 20 and the anchor fixing assembly 30 can be observed from the outside of the first housing 10.

[0064] The device 100 provided in the embodiments of this application for placing anchors on the annular tissue has the anchor driving assembly 20 and the anchor fixing assembly 30 respectively mounted on the mounting member 50. This allows the anchor driving assembly 20 and the anchor fixing assembly 30 to move simultaneously by moving the mounting member 50, eliminating the need to move the anchor driving assembly 20 or the anchor fixing assembly 30 separately. This reduces the difficulty of moving the anchor driving assembly 20 and the anchor fixing assembly 30 and improves the efficiency of their movement. At the same time, by setting the first housing 10 so that the distance of movement of the anchor driving assembly 20 and the anchor fixing assembly 30 can be observed from the outside of the first housing 10, it is beneficial to observe the distance of movement of the anchor 1001. This facilitates the adjustment of the distance of movement of the anchor 1001, thereby enabling precise control of the position of the anchor 1001 entering the annular tissue.

[0065] The device 100 provided in the embodiments of this application, which is suitable for placing anchors on valve annulus tissue, can be used to repair valve annulus tissue.

[0066] In some embodiments, the anchor fixing assembly 30 is fixedly connected to the anchor 1001 to drive the anchor 1001 into the annular tissue.

[0067] In some embodiments, the number of anchor drive assemblies 20 can be multiple, for example, two, and the two anchor drive assemblies 20 can be respectively disposed on both sides of the anchor fixing assembly 30.

[0068] In some embodiments, the anchor drive assembly 20, the anchor fixing assembly 30, the adjustment member 40, and the mounting member 50 are mounted on the first housing 10 along the axial direction of the first housing 10, and the mounting member 50, the anchor drive assembly 20, and the anchor fixing assembly 30 are movable along the axial direction of the first housing 10.

[0069] Adjustment component 40 is, for example, a stud.

[0070] See Figure 1 In some embodiments, the first housing 10 may include a mounting housing 11 and an observation housing 12. The mounting housing 11 is fixedly connected to the observation housing 12, the adjusting member 40 is movably mounted on the mounting housing 11, and the mounting member 50 is disposed on the mounting housing 11. The observation housing 12 is configured such that the distance of movement of the anchor drive assembly 20 and the anchor fixing assembly 30 can be observed from the outside of the observation housing 12. In such embodiments, the above configuration allows the first housing 10 to both mount the anchor drive assembly 20 and the anchor fixing assembly 30, and also allows the distance of movement of the anchor drive assembly 20 and the anchor fixing assembly 30 to be observed through the observation housing 12 of the first housing 10.

[0071] In some embodiments, the observation housing 12 may have an observation window 120, on which a scale may be provided. The anchor drive assembly 20 and the anchor fixation assembly 30 may be marked. The distance the anchor drive assembly 20 and the anchor fixation assembly 30 move is determined based on the scale and the markings. In such an embodiment, by comparing the markings with the scale, the physician can accurately and quickly obtain the distance the anchor drive assembly 20 and the anchor fixation assembly 30 move, thereby precisely controlling the repair position and improving the effectiveness of valve annulus repair.

[0072] See Figure 1 In some embodiments, the first housing 10 may further include an auxiliary housing 13 for assisting the insertion of the means 100 adapted to place the anchor 1001 on the annular tissue into the body so as to place the anchor 1001 on the annular tissue using the means 100 adapted to place the anchor 1001 on the annular tissue.

[0073] In some embodiments, the auxiliary housing 13 may also be configured to deliver the locking wire assembly 60, the winding member 70, the anti-loosening member 80, and the limiting member 90 to the location where the valve annulus tissue needs repair.

[0074] In some embodiments, the end of the auxiliary housing 13 near the valve annulus tissue can be configured as an arc shape so that the auxiliary housing 13 matches the cavity in the animal's body. This facilitates the delivery of the locking wire assembly 60, the winding member 70, the anti-loosening member 80, and the limiting member 90 into the cavity through the auxiliary housing 13, thereby facilitating the repair of the valve annulus tissue.

[0075] In some embodiments, when performing human surgery using the device 100 provided in the embodiments of this application, the end of the auxiliary housing 13 near the valve annulus tissue can be configured as a straight line to facilitate the doctor's operation.

[0076] In some embodiments, the adjusting member 40 and the mounting member 50 may be threadedly connected so that when the adjusting member 40 rotates circumferentially, it can drive the mounting member 50 to move along the direction in which the adjusting member 40 extends. In such an embodiment, the threaded connection between the adjusting member 40 and the mounting member 50 allows the mounting member 50 to be moved by rotating the adjusting member 40, thereby driving the anchor drive assembly 20 and the anchor fixing assembly 30 to move; furthermore, the threaded connection between the adjusting member 40 and the mounting member 50 allows the stepwise movement of the anchor drive assembly 20 and the anchor fixing assembly 30 to be achieved by controlling the rotation of the adjusting member 40, thereby further enabling precise control of the movement of the anchor drive assembly 20 and the anchor fixing assembly 30.

[0077] See Figure 1 and Figure 2 , Figure 2 yes Figure 1 The diagram shows the assembled structure of the anchor drive assembly 20, the anchor fixing assembly 30, and the mounting member 50. In some embodiments, the anchor drive assembly 20 may include an anchor drive member 21 and a drive member adjustment member 22, which are movably connected. The anchor drive member 21 is configured to extend through the mounting housing 11 and drive the anchor 1001 into the annular tissue. The drive member adjustment member 22 is disposed on the mounting member 50. Movement of the mounting member 50 along the extension direction of the adjustment member 40 can drive the drive member adjustment member 22 to move, thereby driving the anchor drive member 21 to move. The drive member adjustment member 22 is also configured to drive the anchor drive member 21 to move along the extension direction of the drive member adjustment member 22. In such embodiments, by using the drive member adjustment member 22 to drive the anchor drive member 21, the movement distance of the anchor drive member 21 can be precisely controlled, facilitating the movement of the anchor drive member 21 to a suitable position for repair.

[0078] See Figure 2In some embodiments, the drive member adjustment member 22 may include a drive member adjustment portion 221 and a drive member mounting portion 222. The drive member adjustment portion 221 is disposed on the mounting member 50, extending through the mounting member 50 and fixedly connected to the drive member mounting portion 222. The drive member adjustment portion 221 can drive the drive member mounting portion 222 to move along the direction of its extension. The drive member mounting portion 222 is fixedly connected to the anchor drive member 21, and its movement along the direction of the drive member adjustment portion 221 can drive the anchor drive member 21 to move. In such embodiments, this arrangement allows the anchor drive member 21 to be moved by operating the drive member adjustment portion 221, which helps reduce the difficulty of moving the anchor drive member 21.

[0079] The drive adjustment part 221 is, for example, a stud.

[0080] In some embodiments, the drive member adjusting part 221 and the drive member mounting part 222 may be threadedly connected so that when the drive member adjusting part 221 rotates circumferentially, it can drive the drive member mounting part 222 to move along the direction in which the drive member adjusting part 221 extends. In such an embodiment, the above arrangement enables the stepping movement of the anchor drive member 21 by controlling the rotation of the drive member adjusting part 221, thereby achieving precise control of the movement of the anchor drive member 21.

[0081] See Figure 2 In some embodiments, the drive member adjustment portion 221 and the adjustment member 40 may be respectively disposed on both sides of the mounting member 50, and the drive member adjustment portion 221 and the adjustment member 40 extend in opposite directions. In such embodiments, the above-described arrangement allows the drive member adjustment portion 221 and the adjustment member 40 to not interfere with each other, while making the structure of the device 100 suitable for placing the anchor 1001 on the annular tissue compact and reducing the overall volume.

[0082] In some embodiments, the drive member adjustment part 221 is disposed on the top of the mounting member 50, and the adjustment member 40 is disposed on the bottom of the mounting member 50; the drive member adjustment part 221 and the adjustment member 40 are respectively disposed on both sides of the mounting member 50 along the axial direction of the mounting member 50.

[0083] See Figure 3 , Figure 3 yes Figure 1The diagram shows the assembled structure of the anchor fixing assembly 30, the adjusting member 40, and the mounting member 50. In some embodiments, the anchor fixing assembly 30 may include an anchor fixing member 31, a fixing mounting member 32, and a limiting member 33. The anchor fixing member 31 is configured to extend through the first housing 10 and fix the anchor 1001 entering the annular tissue to the annular tissue; the fixing mounting member 32 is disposed on the mounting member 50, and the limiting member 33 is configured to enable the mounting member 50 to drive the fixing mounting member 32 to move, thereby driving the anchor fixing member 31 to move; the anchor fixing member 31 is also configured to move along the direction of extension of the limiting member 33, and the limiting member 33 is configured to restrict or release the movement of the anchor fixing member 31. In such an embodiment, by restricting the movement of the anchor fixing member 31, the anchor driving member 21 can properly drive the anchor 1001 into the annular tissue; at the same time, by releasing the movement of the anchor fixing member 31, it is ensured that the anchor fixing member 31 can fix the anchor 1001 to the annular tissue after the anchor 1001 is driven into the annular tissue.

[0084] Anchor fastener 31 is, for example, a steel cable.

[0085] In some embodiments, the anchor fastener 31 is threadedly connected to the winding member 70. The movement of the anchor fastener 31 along the direction of the limiting member 33 can drive the winding member 70 to move toward the anti-loosening member 80 so that the winding member 70 enters the anti-loosening member 80.

[0086] See Figure 3 In some embodiments, the limiting member 33 may include a connecting portion 331, a limiting portion 332, and a limiting mating portion 333. The connecting portion 331 is fixedly connected to the fixed mounting member 32 and to the limiting portion 332. The anchor fastener 31 is configured to pass through the limiting portion 332 and the limiting mating portion 333 and extend to the connecting portion 331. The limiting portion 332 is movably connected to the limiting mating portion 333, and the limiting portion 332 can move relative to the limiting mating portion 333 to restrict or release the movement of the anchor fastener 31. When the limiting portion 332 restricts the movement of the anchor fastener 31, the mounting member 50 can drive the fixed mounting member 32 to move, thereby driving the anchor fastener 31 to move. When the limiting portion 332 releases the movement of the anchor fastener 31, the anchor fastener 31 can move along the direction in which the connecting portion 331 extends. In such an embodiment, the movement of the anchor fastener 31 can be restricted or released by the movement of the limiting part 332 relative to the limiting mating part 333, which helps to reduce the difficulty of controlling the movement of the anchor fastener 31.

[0087] In some embodiments, the connecting portion 331 is configured to be rotatable.

[0088] The limiting part 332 is, for example, a handle. The limiting mating part 333 is, for example, a handle.

[0089] In some embodiments, the connecting portion 331 is fixedly connected to the limiting member 90, and the connecting portion 331 is also configured to be rotatable so as to drive the limiting member 90 to rotate.

[0090] In some embodiments, when the limiting portion 332 moves relative to the limiting mating portion 333 in a direction close to the limiting mating portion 333, the limiting portion 332 restricts the movement of the anchor fastener 31; when the limiting portion 332 moves relative to the limiting mating portion 333 in a direction away from the limiting mating portion 333, the limiting portion 332 releases the movement of the anchor fastener 31. In such an embodiment, when the movement of the anchor fastener 31 is restricted, the anchor fastener 31 and the connecting portion 331 can move together with the mounting member 50 to move to the appropriate position; when the movement of the anchor fastener 31 is released, the anchor fastener 31 can move independently to fix the anchor 1001 to the annular tissue.

[0091] In some embodiments, the limiting portion 332 and the limiting mating portion 333 are configured to be threadedly connected so that the limiting portion 332 can move relative to the limiting mating portion 333, thereby enabling the limiting portion 332 to engage with the limiting mating portion 333 to restrict or release the movement of the anchor fastener 31.

[0092] In some embodiments, the inner wall of the limiting portion 332 may be provided with a plurality of clamping elements, which may be configured to form a channel for the anchor fastener 31 to pass through. The diameter of the channel is smaller than the inner diameter of the limiting portion 332, and the diameter of the channel is configured to change as the limiting portion 332 moves relative to the limiting mating portion 333. When the limiting portion 332 moves relative to the limiting mating portion 333 in a direction closer to the limiting mating portion 333, the diameter of the channel decreases, and the plurality of clamping elements clamp the anchor fastener 31, restricting the movement of the anchor fastener 31. When the limiting portion 332 moves relative to the limiting mating portion 333 in a direction away from the limiting mating portion 333, the diameter of the channel increases, and the plurality of clamping elements release the anchor fastener 31, releasing the movement of the anchor fastener 31. In such an embodiment, the diameter variation of the channel formed by multiple clamping elements to restrict or release the movement of the anchor fastener 31 simplifies the operation of restricting or releasing the movement of the anchor fastener 31, thereby improving the efficiency of repairing the valve annulus tissue.

[0093] See Figure 1 and Figure 2In some embodiments, the anchor drive 21 may include a drive body 211 and an anchor drive portion 212. The drive body 211 is fixedly connected to the drive mounting portion 222, and the drive body 211 axially penetrates the first housing 10; the drive mounting portion 222 can move along the extension direction of the drive adjustment portion 221 to drive the drive body 211 to move, thereby driving the anchor drive portion 212 to move; the anchor drive portion 212 is fixedly connected to the anchor 1001 and is configured to drive the anchor 1001 into the annular tissue.

[0094] In some embodiments, each locking element 62 is also connected to a drive body 211.

[0095] In related technologies, anchors are typically screwed into the annular tissue at a fixed angle using appropriate repair devices. However, due to the irregularity of the surface of the annular tissue, anchors screwed in at a single fixed angle are difficult to maintain a reliable connection with the annular tissue at different locations, leading to the problem of anchors detaching from the annular tissue and affecting the effectiveness of annular tissue repair.

[0096] See Figure 1 and Figure 2 In some embodiments, the anchor drive assembly 20 may further include a bending control member 23 and a drive control member 24. The bending control member 23 is configured to control the degree of bending of the drive body 211, and the drive control member 24 is configured to control the axial movement and circumferential rotation of the anchor drive portion 212. In such embodiments, by controlling the degree of bending of the drive body 211 through the bending control member 23, and thereby controlling the degree of bending of the anchor drive portion 212, since the anchor drive portion 212 is fixedly connected to the anchor 1001, by controlling the degree of bending of the anchor drive portion 212, the position and angle at which the anchor 1001 enters the annular tissue can be adjusted, thereby improving the reliability of the anchor 1001 entering the annular tissue and preventing the anchor 1001 from detaching from the annular tissue; at the same time, by configuring the drive control member 24 to control the axial movement and circumferential rotation of the anchor drive portion 212, the anchor drive portion 212 drives the anchor 1001 into the annular tissue.

[0097] In some embodiments, when the anchor 1001 is placed in the annular tissue using the device 100 provided in the embodiments of this application, the driving body 211 is first moved by the driving member adjustment part 221 to move the driving body 211 to the position where the anchor 1001 enters the annular tissue, and then the driving body 211 is bent by the bending control member 23 to drive the anchor 1001 into the annular tissue.

[0098] In some embodiments, during the process of the drive body 211 being moved by the drive member adjustment part 221, the drive body 211 and the drive member adjustment part 221 are axially parallel, so that the drive member adjustment part 222 can drive the drive body 211 to move along the axial direction of the drive body 211, thereby enabling the drive member adjustment part 222 to control the axial movement of the drive body 211.

[0099] In some embodiments, the drive component mounting portion 222 is further configured to be fixedly connected to the bending control component 23 and the drive control component 24.

[0100] In some embodiments, the drive member mounting portion 222 has an integrally formed first portion 2221 and a second portion 2222 in a direction perpendicular to its axial direction. The drive member adjusting portion 221 is configured to be threadedly connected to and pass through the first portion 2221; the drive body 211 is configured to be fixedly connected to the second portion 2222. In such an embodiment, the above configuration allows the drive member mounting portion 222 to be connected to the drive member adjusting portion 221 and the drive body 211 respectively, while also preventing the drive member adjusting portion 221 and the drive body 211 from interfering with each other.

[0101] See Figure 2 In some embodiments, the bending control member 23 may include a second housing 231, a bending control part 232, and a limiting part 233. The second housing 231 is configured to insert into the second part 2222 and is fixedly connected to the second part 2222; the bending control part 232 is configured to pass through the limiting part 233 and be threadedly connected to the limiting part 233, and the bending control part 232 is configured to be axially inserted into the second housing 231; the limiting part 233 is configured to be fixedly connected to the bending guide wire of the drive body 211, and the limiting part 233 is configured to be movably connected to the second housing 231; rotating the bending control part 232 can drive the limiting part 233 to move, and the movement of the limiting part 233 can control the degree of bending of the drive body 211. In such embodiments, by rotating the bending control part 232, the limiting part 233 can be moved to control the degree of bending of the drive body 211, which helps to reduce the difficulty of controlling the degree of bending of the drive body 211.

[0102] See Figure 2In some embodiments, a first mating portion 2310 may be formed on the sidewall of the second housing 231, and a second mating member 2330 may be formed on the sidewall of the limiting portion 233. The second mating member 2330 and the first mating portion 2310 cooperate with each other and are slidably connected. The second mating member 2330 is configured to be fixedly connected to the bending guide wire of the drive body 211. In such embodiments, the bending operation of the bending guide wire of the drive body 211 is realized through the cooperation of the second mating member 2330 and the first mating portion 2310, thereby realizing the bending operation of the anchor driving part 212, which is beneficial for comprehensive control of the anchor driving part 212.

[0103] See Figure 2 In some embodiments, the drive control unit 24 may include an adjusting housing 241 and an adjusting handle 242. The adjusting housing 241 may be inserted into the adjusting handle 242, and the adjusting handle 242 is configured to control the axial movement and circumferential rotation of the adjusting housing 241. The adjusting housing 241 is fixedly connected to the anchor drive unit 212. In such embodiments, the above configuration allows control of the anchor drive unit 212 via the adjusting handle 242, which helps to reduce the difficulty of controlling the anchor drive unit 212.

[0104] In some embodiments, the adjusting handle 242 and the adjusting housing 241 may be configured such that the axial movement and circumferential rotation of the adjusting handle 242 are restricted. In such embodiments, by restricting the axial movement and circumferential rotation of the adjusting handle 242, the axial movement and circumferential rotation of the anchor drive 212 are also restricted, further facilitating comprehensive control of the anchor drive 212.

[0105] See Figure 1 and Figure 2 In some embodiments, the anchor drive assembly 20 may further include a positioning pin 250 and a positioning adjustment member 25. The positioning pin 250 is disposed within the anchor drive part 212 and is capable of penetrating the annular tissue to position the anchor 1001 into the annular tissue. The positioning adjustment member 25 is fixedly connected to the positioning pin 250 and the adjustment handle 242 and is used to control the movement of the positioning pin 250 along its axial direction and its circumferential direction to penetrate the annular tissue.

[0106] See Figure 2 and Figure 4 , Figure 4 yes Figure 2The schematic diagram of the adjusting housing 241 shown illustrates that, in some embodiments, the drive control member 24 may further include an adjusting limit member 243. The adjusting handle 242 is provided with a mounting hole, and the adjusting housing 241 is formed with an axial groove 2411 and a radial groove 2412. The adjusting limit member 243 is configured to be inserted into the mounting hole and simultaneously into either the axial groove 2411 or the radial groove 2412. The axial groove 2411 is configured to extend along the axial direction of the adjusting housing 241, and the radial groove 2412 is configured to extend along the radial direction of the adjusting housing 241, so that the movement of the adjusting limit member 243 in the axial direction or the radial direction of the adjusting housing 241 is restricted. In such an embodiment, by limiting the movement of the adjusting limit member 243 in the axial direction or the radial direction of the adjusting housing 241, the movement of the adjusting handle 242 in the axial direction or the radial direction of the adjusting housing 241 is limited, thereby preventing excessive movement of the positioning adjustment member 25 and the positioning pin 25 in the axial direction of the adjusting housing 241, and thus preventing them from penetrating the valve annulus tissue too deeply and causing a safety accident.

[0107] In some embodiments, when the adjusting limit member 243 enters the axial groove 2411, the positioning adjustment member 25 and the positioning pin 250 can move within the axial distance defined by the radial groove 2412. By setting the axial distance defined by the radial groove 2412, the maximum insertion depth of the positioning pin 250 is further limited, thereby further preventing safety accidents caused by the positioning pin 250 excessively penetrating the valve annulus tissue.

[0108] The following describes the use of the device 100 for placing anchors 1001 on annular tissue, provided by an embodiment of this application.

[0109] First, the locking wire assembly 60, the winding member 70, the anti-loosening member 80, and the limiting member 90 are conveyed to the location of the annulus pulvinus tissue that needs repair using the auxiliary housing 13. Then, the limiting part 332 moves relative to the limiting mating part 333 in a direction close to the limiting mating part 333, and the adjusting member 40 is rotated. The mounting member 50 begins to move, driving the anchor driving member 21 and the anchor fixing member 31 provided on the mounting member 50 to move. When the anchor driving member 21 and the anchor fixing member 31 move to the vicinity of the location where the anchor 1001 is driven into the annulus pulvinus tissue, the rotating adjusting member 40 is stopped. Then, the rotating driving member adjusting part 221 is rotated, and the driving member mounting part 222 begins to move, driving the anchor provided on the driving member mounting part 222... The anchor drive 21 moves, and when the anchor drive 21 moves to the position where the anchor 1001 is driven into the annular tissue, the rotating drive adjustment part 221 stops rotating; then, the anchor drive part 212 rotates and drives the anchor 1001 to rotate, and the anchor 1001 begins to enter the annular tissue; after the anchor 1001 enters the annular tissue, the connecting part 331 rotates and drives the winding part 70 to rotate, and the locking wire 61 begins to wind around the winding part 70; after the locking wire 61 is wound, the anchor fixing part 31 pulls the winding part 70 to move in the direction close to the anti-loosening part 80, and the winding part 70 enters the anti-loosening part 80. At the same time, the locking wire 61 pulls the anchor 1001 and the annular tissue connected to it to achieve repair of the annular tissue.

[0110] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0111] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A device for placing anchors in annular tissue, characterized in that, The device comprises: a locking wire assembly for pulling the anchors arranged on the annulus tissue and changing the relative distance between the anchors; a winding element arranged such that the locking wire assembly can be partially wound on the winding element when the winding element rotates, so that the locking wire assembly can pull the anchors; a locking element for preventing the locking wire assembly wound on the winding element from disengaging from the winding element; a limiting element for driving the winding element to rotate and limiting the movement of the locking element; the locking element is arranged to allow the winding element to enter and arranged to prevent the winding element entering the locking element from leaving; wherein the locking element comprises: a locking body and a locking limiting part arranged on the locking body, the locking body is arranged to allow the winding element to enter, and the locking limiting part is arranged to prevent the winding element entering the locking body from leaving; wherein the locking body is arranged to form a receiving cavity and a clearance part communicating with the receiving cavity, the receiving cavity is arranged to allow the winding element and part of the locking wire assembly wound on the winding element to enter, the clearance part is arranged for part of the locking wire assembly not wound on the winding element to extend out of the receiving cavity; the locking limiting part is arranged to prevent the winding element entering the receiving cavity from leaving the receiving cavity; the locking limiting part is a protrusion extending from the circumferential inner wall of the locking body to the center of the locking body, and the protrusion forms a passage for the winding element to pass through; when the winding element enters the receiving cavity, the winding element can pass through the passage and abut against the end of the protrusion away from the winding element to prevent the winding element entering the receiving cavity from leaving the receiving cavity; wherein the limiting element is further arranged to limit the circumferential position of the winding element, and the limiting element can drive the winding element to rotate when the limiting element rotates.

2. The apparatus of claim 1, wherein, The winding element comprises: a winding part and a limiting matching part, the winding part is arranged such that the locking wire assembly can be partially wound on the winding part when the winding part rotates, and the winding part is arranged to enter the receiving cavity; the limiting matching part is arranged in the winding part and arranged to extend out of the winding part, the limiting matching part is arranged to abut against the locking limiting part to prevent the winding part entering the receiving cavity from leaving the receiving cavity.

3. The apparatus of claim 2, wherein, The maximum diameter of the limiting matching part is greater than the diameter of the passage, and the limiting matching part is arranged to have elasticity.

4. The apparatus of claim 3, wherein, The limiting matching part comprises two extension segments and a connecting segment connecting the two extension segments, the connecting segment is arranged in the winding part, and the two extension segments are arranged to extend out of the winding part, and the two extension segments are further arranged to have elasticity, so that the distance between the two extension segments can be changed, and the two extension segments can abut against the end of the locking limiting part away from the winding part after passing through the passage.

5. The device according to claim 1, wherein the limiting element is arranged to abut against the locking element to limit the movement of the locking element.

6. The device of claim 5, wherein the limiting member is further configured to form an anti-rotation portion, and the winding member is provided with an anti-rotation cooperating portion, the anti-rotation portion and the anti-rotation cooperating portion are configured to cooperate to limit circumferential rotation of the winding member relative to the limiting member after the winding member enters the anti-loosening member. ​

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