Soft tissue fixation band line anchor

Abstract

The utility model discloses a kind of soft tissue fixed band line anchor, belong to medical anchor technical field, anchor body includes anchor rod, the one end of anchor rod is provided with nail tip, the surface of anchor rod and nail tip is provided with threaded portion, the other end of anchor rod is opened with antiskid groove, the bottom of antiskid groove is opened with connecting groove, the inner wall of connecting groove is threadedly connected with line body positioning assembly, one end of line body positioning assembly is movably connected with suture body, the soft tissue fixed band line anchor, through the line body positioning assembly set, can be fixed after anchor body, then the threading of suture is completed after outside, and anchor body connection, greatly improve the threading convenience of suture, and through the connecting groove and the avoidance slot of anchor body setting, not only facilitate the connection of line body positioning assembly, and greatly reduce the processing difficulty of anchor.

Description

Technical Field

[0001] This utility model relates to the field of medical anchor technology, and more specifically, to a soft tissue fixation suture anchor. Background Technology

[0002] Suture anchors are widely used in orthopedic ligament repair or reconstruction surgery. A suture anchor is an implant with sutures that connect soft tissue to bone for the repair of lateral ligaments of the knee or shoulder.

[0003] Currently, commonly used soft tissue fixation suture anchors are not only difficult to manufacture, but also inconvenient for threading. For example, a soft tissue fixation suture anchor disclosed in publication number CN 209203377U includes an anchor body and a threaded portion provided on the surface of the anchor body; the anchor body includes an anchor tip, an anchor shank, and an anchor tail end; the anchor shank has a cavity and a partition inside; the partition divides the front end of the cavity into a U-shaped cross-section channel; the two connection ports between the U-shaped cross-section channel and the bottom cavity are a threading hole and an outlet hole, respectively.

[0004] As can be seen from the above-mentioned publicly available scheme, the cavity, partition, threading hole and outlet hole of the anchor with wire not only increase the processing difficulty, but also require threading tools to assist in threading, which brings great inconvenience to the user. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a soft tissue fixation suture anchor. This soft tissue fixation suture anchor, through the setting of the suture positioning component, can be fixed after the anchor body is fixed, and then the suture is threaded through the outside and connected to the anchor body, which greatly improves the convenience of suture threading. Furthermore, the connecting groove and clearance groove set in the anchor body not only facilitate the connection of the suture positioning component, but also greatly reduce the processing difficulty of the anchor.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A soft tissue fixation suture anchor includes an anchor body, which includes an anchor rod. One end of the anchor rod has a nail tip, and the surfaces of the anchor rod and nail tip are threaded. The other end of the anchor rod has an anti-slip groove, and the bottom of the anti-slip groove has a connecting groove. A suture positioning component is threadedly connected to the inner wall of the connecting groove. One end of the suture positioning component is movably connected to a suture body. This soft tissue fixation suture anchor, through the suture positioning component, allows the suture to be threaded externally after the anchor body is fixed, greatly improving the convenience of suture threading. Furthermore, the connecting groove and clearance groove on the anchor body not only facilitate the connection of the suture positioning component but also significantly reduce the manufacturing difficulty of the anchor.

[0008] Furthermore, the line positioning assembly includes a connecting post, one end of which is fixedly connected to an anti-slip block. The anti-slip block is polygonal in shape, and the surface of the connecting post has external threads. The anti-slip block allows the connecting post to be rotated with a wrench, enabling the connecting post and the anchor rod to be disassembled and reassembled.

[0009] Furthermore, the anti-slip block and the connecting post have an axially penetrating first thread hole and a second thread hole on their end faces. The inner walls of the first thread hole and the second thread hole are slidably connected to the surface of the suture body. The first thread hole and the second thread hole facilitate the thread body and the suture positioning assembly to be threaded and positioned.

[0010] Furthermore, a protrusion is fixedly connected to one end of the connecting post. The protrusion is arc-shaped, and its surface is movably connected to the surface of the suture body. The protrusion can prevent the surface of the suture body from wearing with the openings of the first and second suture holes.

[0011] Furthermore, the inner wall of the connecting groove is threaded, and the inner wall of the connecting groove is threaded to the surface of the connecting column. After the connecting groove and the connecting column are connected, the support strength of one end of the anchor rod can be increased.

[0012] Furthermore, the bottom of the connecting groove has a clearance groove, the inner diameter of which is smaller than the inner diameter of the connecting groove. The clearance groove serves to prevent the suture body from being damaged by pressure.

[0013] Furthermore, the anti-slip groove is polygonal in shape, which facilitates rotating the anchor pin using a polygonal wrench.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution, through the setting of the suture positioning component, can connect the suture to the anchor body after the anchor body is fixed and the suture is threaded through the outside, which greatly improves the convenience of threading the suture.

[0016] (2) This solution uses the connecting groove and clearance groove set in the anchor body, which not only facilitates the connection of the line positioning components, but also greatly reduces the processing difficulty of the anchor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the anchor body structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the thread positioning component and the suture installation structure of this utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the installation structure of the connecting column and anti-slip block;

[0021] Figure 5 for Figure 4 A sectional view of the connecting column and anti-slip block installation structure.

[0022] Explanation of the labels in the diagram:

[0023] 1. Anchor nail body; 11. Anchor rod; 12. Nail tip; 13. Threaded part; 14. Anti-slip groove; 15. Connecting groove; 16. Clearing groove; 2. Line positioning assembly; 21. Connecting post; 22. Anti-slip block; 23. First line hole; 24. Second line hole; 25. Protrusion; 3. Suture thread body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figure 1-5 A soft tissue fixation suture anchor includes an anchor body 1, which includes an anchor rod 11. One end of the anchor rod 11 is provided with a nail tip 12. The anchor rod 11, nail tip 12, and threaded portion 13 are all made of medical-grade metal. The surfaces of the anchor rod 11 and nail tip 12 are provided with threaded portion 13. The other end of the anchor rod 11 has an anti-slip groove 14. The anti-slip groove 14 is polygonal in shape, which facilitates the rotation of the anchor rod using a polygonal wrench. The bottom of the anti-slip groove 14 has a connecting groove 15. The inner wall of the connecting groove 15 is threadedly connected to a suture positioning component 2. The suture positioning component 2 includes a connecting post 21. One end of the connecting post 21 is fixedly connected to an anti-slip block 22. The anti-slip block 22 is polygonal in shape. The surface of the connecting post 21 has external threads. The anti-slip block 22 facilitates the rotation of the connecting post 21 using a wrench, allowing the connecting post 21 and the anchor rod 11 to be disassembled and reassembled. One end of the suture positioning component 2 is movably connected to a suture body 3.

[0027] The anti-slip block 22 and the connecting post 21 have an axially penetrating first thread hole 23 and a second thread hole 24 on their end faces. The inner walls of the first thread hole 23 and the second thread hole 24 are slidably connected to the surface of the suture body 3. The first thread hole 23 and the second thread hole 24 facilitate the threading and positioning of the suture body 3 and the suture positioning component 2. One end of the connecting post 21 is fixedly connected to a protrusion 25. The protrusion 25 is arc-shaped, and the surface of the protrusion 25 is movably connected to the surface of the suture body 3. The protrusion 25 can prevent the surface of the suture body 3 from being worn against the opening of one end of the first thread hole 23 and the second thread hole 24.

[0028] The inner wall of the connecting groove 15 has internal threads, and the inner wall of the connecting groove 15 is threaded to the surface of the connecting post 21. After the connecting groove 15 and the connecting post 21 are connected, the support strength of one end of the anchor rod 11 can be increased. The bottom of the connecting groove 15 has a clearance groove 16. The inner diameter of the clearance groove 16 is smaller than the inner diameter of the connecting groove 15. The clearance groove 16 has the function of clearance, avoiding damage to the suture body 3.

[0029] When using this soft tissue fixation suture anchor, the suture body 3 is first threaded through the suture needle, and then the soft tissue is sutured using the suture needle and suture body 3. Next, the anchor body 1 is fixed to the bone by rotating the head. Then, the suture needle, carrying the suture body 3, is threaded through the first suture hole 23 and out through the second suture hole 24. Then, the thread positioning component 2 is connected to the anchor body 1 by using a wrench, so that the connecting post 21 is screwed clockwise into the connecting groove 15, thereby fixing the connection position of the thread positioning component 2. Finally, the suture body 3 is tied and fixed. With the setting of the thread positioning component 2, after the anchor body 1 is fixed, the suture can be threaded externally and then connected to the anchor body 1, which greatly improves the convenience of threading the suture. Furthermore, the connecting groove 15 and the clearance groove 16 set in the anchor body 1 not only facilitate the connection of the thread positioning component 2, but also greatly reduce the processing difficulty of the anchor, thereby reducing the production cost and facilitating its widespread use.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A soft tissue fixation suture anchor, comprising an anchor body (1), characterized in that: The anchor body (1) includes an anchor rod (11), one end of which is provided with a nail tip (12). The surfaces of the anchor rod (11) and the nail tip (12) are provided with threaded portions (13). The other end of the anchor rod (11) is provided with an anti-slip groove (14). The bottom of the anti-slip groove (14) is provided with a connecting groove (15). The inner wall of the connecting groove (15) is threadedly connected to a thread positioning component (2). One end of the thread positioning component (2) is movably connected to a suture body (3).

2. The soft tissue fixation suture anchor according to claim 1, characterized in that: The line positioning component (2) includes a connecting post (21), one end of which is fixedly connected to an anti-slip block (22). The anti-slip block (22) is polygonal in shape, and the surface of the connecting post (21) has external threads.

3. The soft tissue fixation suture anchor according to claim 2, characterized in that: The anti-slip block (22) and the connecting post (21) have an axially penetrating first wire hole (23) and a second wire hole (24) on their end faces. The inner walls of the first wire hole (23) and the second wire hole (24) are slidably connected to the surface of the suture body (3).

4. The soft tissue fixation suture anchor according to claim 2, characterized in that: One end of the connecting post (21) is fixedly connected to a protrusion (25), the protrusion (25) is arc-shaped, and the surface of the protrusion (25) is movably connected to the surface of the suture body (3).

5. A soft tissue fixation suture anchor according to claim 2, characterized in that: The inner wall of the connecting groove (15) is threaded, and the inner wall of the connecting groove (15) is threaded to the surface of the connecting column (21).

6. The soft tissue fixation suture anchor according to claim 1, characterized in that: The bottom of the connecting groove (15) has a clearance groove (16), and the inner diameter of the clearance groove (16) is smaller than the inner diameter of the connecting groove (15).

7. The soft tissue fixation suture anchor according to claim 1, characterized in that: The anti-slip groove (14) is polygonal in shape.

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