A full-suture anchor fixation system

Abstract

This application relates to a full-suture anchor fixation system, belonging to the technical field of medical devices. It includes an inserter and a nail body. The inserter includes a handle, a rotating assembly, and a hollow rod. One section of the hollow rod is inserted into and fixedly connected to the handle. The rotating assembly includes a knob, a stud, and a winding post. The knob is sleeved on the stud and threadedly connected to it. The winding post is positioned above the stud. A left traction suture and a right traction suture pass through the nail body, and the ends of the left and right traction sutures are fixedly connected to at least two connection points on the nail body. The hollow rod has a channel for the traction sutures to pass through. The winding post is movably disposed within the hollow rod and is drivenly connected to the stud. The tip of the inserter has a clamping groove for holding the nail body. This application has the effect of allowing the nail body to smoothly form a bundle during suture preparation.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and in particular to a full suture anchor fixation system. Background Technology

[0002] In the medical field, tissue repair after tearing has always been an important research direction. With the continuous development of medical technology, the requirements for tissue repair are becoming increasingly stringent, demanding not only effective fixation but also minimizing damage to human tissues. All-suture anchors, due to their numerous advantages such as minimal bone destruction, high fixation strength, and good biological properties, have been widely used in tissue tear repair surgery, leading to better patient recovery and promoting the further development of tissue repair technology.

[0003] Prior to this technical solution, the common method for using all-suture anchors in tissue tear repair surgery was to insert the anchor into the bone tunnel using an inserter. The procedure involved first placing the anchor in an untightened state, then using the inserter to guide it into the appropriate position within the bone tunnel. The metal rod was then removed, and the sutures at both ends of the anchor were pulled to attempt to tighten the anchor into a clump, thereby fixing the torn tissue. This method could, to a certain extent, meet the basic needs of tissue repair and had been used clinically for some time.

[0004] However, this conventional all-suture anchor fixation method in existing technology has significant drawbacks. Because the anchor is inserted in an untightened state and relies entirely on the traction of the sutures at both ends to form a cluster, the anchor is prone to failure to form a cluster during the traction process, leading to anchor detachment. This seriously affects the surgical outcome and quality, and increases the risk of surgical failure. Summary of the Invention

[0005] In order to ensure that the nail body can be successfully bundled during the sewing process, this application provides a fully sewn anchor fixation system.

[0006] The fully suture anchor fixing system provided in this application adopts the following technical solution: A fully threaded anchor fixing system, characterized in that it includes an inserter and an anchor body; the inserter includes a handle, a rotating assembly, and a hollow rod, a section of the hollow rod being inserted into and fixedly connected to the handle; the rotating assembly includes a knob, a stud, and a winding post, the knob being sleeved on the stud and threadedly connected to the stud; the winding post being positioned above the stud; a left traction wire and a right traction wire being inserted into the anchor body, the ends of the left and right traction wires being fixedly connected to at least two connection points on the anchor body; the hollow rod body has a channel for the traction wires to pass through, the winding post being movably disposed within the hollow rod body and being drivenly connected to the stud; and the tip of the inserter has a clamping groove for clamping the anchor body.

[0007] By adopting the above technical solution, during use, the ends of the left and right traction wires can be wound around the winding post. After the inserter is implanted into the bone tunnel, keep the inserter in place, rotate the knob to tighten the left and right traction wires. The nail body is pulled through the joint point, causing the nail body to clump together. As the traction wires tighten, rotating the knob drives the stud. As the stud moves upward, it pushes the winding post upward. Because the traction wires are wound and fixed to the winding post, they are thus tightened upward.

[0008] Rotate the knob to move the stud and winding post away from the head of the inserter. After the stud rises a certain distance, the nail body will be tightened into a ball. Loosen the traction line wrapped around the winding post and remove the inserter. At this point, the nail body is already balled up, thus completing the fixation. In this way, after the anchor inserter is inserted into the bone channel, keep the inserter in the bone channel and tighten the anchor traction line at the same time so that the nail body is first balled up in the bone channel before removing the inserter. This method greatly reduces the probability of nail dislodgement and also maintains the self-tapping performance of the inserter.

[0009] Optionally, the stud and the winding post are connected by a structural connection.

[0010] By adopting the above technical solution, the studs and winding posts of the full-seam anchor fixing system are connected by a plug-in method, which can realize the transmission connection between the two, facilitate the movement of the winding post in the hollow rod body, and the plug-in method can ensure the stability of the connection and the convenience of installation.

[0011] Optionally, the lower end of the winding post extends into the stud, and a winding hole is provided at the lower end of the winding post.

[0012] By adopting the above technical solution, the lower end of the winding post extends into the stud and a winding hole is opened, which facilitates the winding and fixing of the traction line, makes the arrangement of the traction line more reasonable and orderly, and helps the full-seam anchor fixing system to better realize the operation and control of the traction line.

[0013] Optionally, the arc-shaped sidewall of the winding post is provided with a winding groove arranged around the axis of the winding post, and both the left traction wire and the right traction wire are wound in the winding groove.

[0014] By adopting the above technical solution, the left and right traction lines are wound in the winding groove, which can achieve orderly winding of the traction lines, avoid tangling or knotting of the traction lines, facilitate operation, and ensure the stability of the traction lines during use, which is conducive to the smooth completion of the fixing operation of the full-seam anchor fixing system.

[0015] Optionally, the handle includes a handle head and a handle body, the handle head has a through hole, the winding post is placed in the through hole, and a connecting component for connecting the handle head and the handle body is provided between the handle head and the handle body.

[0016] By adopting the above technical solution, the winding post is placed in the through hole of the handle head, which facilitates the installation and positioning of the winding post and makes the winding operation more stable; the connection component connects the handle head and the handle body, which can ensure the stability of the handle structure and improve the reliability and ease of operation of the entire fixing system.

[0017] Optionally, the connecting assembly includes two arc-shaped plates, which are fixedly connected between the handle head and the handle body. The inner arc surface of the arc-shaped plate fits against the arc surface of the stud, and a gap is left between the two arc-shaped plates. The knob is sleeved on the outer arc surface of the two arc-shaped plates.

[0018] By adopting the above technical solution, the knob is sleeved on the outer arc surface of the two arc plates, which makes it easy to drive the stud to move by rotating the knob, thereby realizing the movement of the winding post, making the operation of the entire full-seam anchor fixing system more stable and smooth.

[0019] Optionally, the nail body has a polyhedral structure, and the nail body is provided with a wire groove for clamping by a clamping slot.

[0020] By adopting the above technical solution, the multi-faceted structure of the nail body can increase the contact area between the nail body and the surrounding tissue, thereby improving the fixation stability. The nail body is provided with a wire groove for the clamping slot to hold the nail body, which makes it easy for the clamping slot of the inserter to firmly clamp the nail body, making the nail body less likely to fall off during operation and ensuring the accuracy and reliability of the fixation system operation.

[0021] Optionally, the outer surface of the knob is provided with anti-slip grooves, which are evenly distributed along the circumference of the knob.

[0022] By adopting the above technical solution, anti-slip grooves are set on the outer surface of the knob in a circumferentially evenly distributed manner, which can increase the friction between the hand and the knob, making it easier for the operator to rotate the knob and making the operation more convenient and stable.

[0023] Optionally, the fixing points of the left and right traction wires on the nail body are arranged symmetrically about the central axis of the nail body.

[0024] By adopting the above technical solutions, the fixing points of the traction line on the nail body are more rationally arranged, which makes the nail body more balanced and stable when under force, and helps to improve the performance and reliability of the full-seam anchor fixing system.

[0025] Optionally, the far end of the hollow rod is provided with a tapered guide section.

[0026] By adopting the above technical solution, the hollow rod of the full-seam anchor fixing system is provided with a tapered guide section at the far end, which makes it easier to insert the hollow rod into the target position during operation, playing a good guiding role and facilitating the use of the system.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. The use of a full suture anchor fixation system reduces the risk of rejection by the human body and adverse effects on surrounding tissues that may be caused by traditional metal anchors; 2. This system can effectively avoid the problem of loosening that often occurs with suture fixation methods, improve fixation effectiveness, and promote tissue healing; 3. Compared with biomaterial anchors, this system performs better in terms of fixation strength and stability, and can meet the requirements of high fixation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle; Figure 3 This is a schematic diagram of the winding post of Embodiment 1 of this application; Figure 4 This is a schematic diagram of the winding groove in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 6 This is a schematic diagram of the winding hole structure of Embodiment 2 of this application.

[0029] In the diagram, 1 is the inserter; 11 is the handle; 111 is the handle head; 112 is the handle body; 113 is the connecting assembly; 1131 is the arc plate; 12 is the rotating assembly; 121 is the knob; 122 is the stud; 123 is the winding post; 1231 is the winding hole; 1232 is the winding groove; 13 is the hollow rod body; 14 is the clamping groove; 2 is the nail body; 21 is the wire groove; 3 is the left traction wire; 4 is the right traction wire. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below. Example 1

[0031] A fully threaded anchor fixation system, referring to Figure 1 and Figure 2 It includes an inserter 1 and a nail body 2; the inserter 1 includes a handle 11, a rotating assembly 12 and a hollow rod body 13.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The upper section of the hollow rod 13 is inserted and fixedly connected to the handle 11, and the hollow rod 13 and the handle 11 are coaxially arranged. The rotating assembly 12 includes a knob 121, a stud 122, and a winding post 123, all of which are coaxially arranged. The outer surface of the knob 121 is provided with anti-slip grooves, which are evenly distributed along the circumference of the knob 121. (Refer to...) Figure 2 , Figure 3 and Figure 4 The stud 122 and the winding post 123 are connected by a plug-in connection. The lower end of the winding post 123 extends into the stud 122, and a winding hole 1231 is provided at the lower end of the winding post 123. The knob 121 is sleeved on the stud 122 and threadedly connected to the stud 122. The winding post 123 is positioned above the stud 122.

[0033] The nail body 2 has a polyhedral structure and a wire groove 21 for clamping by the clamping groove 14. A left traction wire 3 and a right traction wire 4 are threaded inside the nail body 2. The ends of the left traction wire 3 and the right traction wire 4 are fixedly connected to at least two joints on the nail body 2, respectively. The fixing points of the left traction wire 3 and the right traction wire 4 on the nail body 2 are symmetrically arranged about the central axis of the nail body 2.

[0034] The hollow rod 13 has a tapered guide section at its far end, and the hollow rod 13 has a channel inside for the left traction line 3 and the right traction line 4 to pass through. The winding post 123 is movably disposed inside the hollow rod 13 and is connected to the stud 122 in a driving connection. The tip of the inserter 1 has a clamping groove 14 for clamping the nail body 2.

[0035] The handle 11 includes a handle head 111 and a handle body 112. A through hole is provided on the handle head 111, and a winding post 123 is placed in the through hole. A connecting component 113 for connecting the handle head 111 and the handle body 112 is provided. The connecting component 113 includes two arc-shaped plates 1131, which are fixedly connected between the handle head 111 and the handle body 112. The inner arc surface of the arc plate 1131 fits against the arc surface of the stud 122, and a gap is left between the two arc plates 1131. The knob 121 is sleeved on the outer arc surface of the two arc plates 1131.

[0036] In use, the ends of the left traction wire 3 and the right traction wire 4 are wound around the winding post 123. After inserting the inserter 1 into the bone tunnel, keep the inserter 1 in place and rotate the knob 121 to tighten the left traction wire 3 and the right traction wire 4. The nail body 2 is pulled through the joint point, causing the nail body 2 to clump together. As the traction wire 4 tightens, rotating the knob 121 drives the stud 122. As the stud 122 moves upward, it pushes the winding post 123 upward. Since the left traction wire 3 and the right traction wire 4 are wound and fixed to the winding post 123, they are thus tightened upward.

[0037] Rotate knob 121 to move stud 122 and winding post 123 to the end away from the head of inserter 1. After stud 122 rises a certain distance, the nail body 2 is tightened into a ball. Loosen the left traction line 3 and right traction line 4 wrapped around winding post 123 and take out inserter 1. At this time, the nail body 2 is already balled up, thus completing the fixation. Thus, after the anchor inserter 1 is inserted into the bone channel, keep inserter 1 without removing it from the bone channel, and tighten anchor traction line 4 at the same time so that the nail body 2 is first balled up in the bone channel before taking out inserter 1. This allows the nail body 2 to be smoothly balled up during the suture process. Example 2

[0038] The difference from Example 1 is that: (Refer to...) Figure 5 and Figure 6 The winding post 123 has a winding groove 1232 on its arc-shaped side wall, which is arranged around the axis of the winding post 123. The left traction wire 3 and the right traction wire 4 are both wound in the winding groove 1232.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A fully stitched anchor fixing system, characterized in that, The device includes an inserter (1) and a nail body (2). The inserter (1) includes a handle (11), a rotating assembly (12), and a hollow rod (13). One section of the hollow rod (13) is inserted through and fixedly connected to the handle (11). The rotating assembly (12) includes a knob (121), a stud (122), and a winding post (123). The knob (121) is sleeved on the stud (122) and threadedly connected to the stud (122). The winding post (123) is placed on the stud (122). 2) Above, a left traction wire (3) and a right traction wire (4) are threaded through the nail body (2), and the ends of the left traction wire (3) and the right traction wire (4) are fixedly connected to at least two joint points on the nail body (2); the hollow rod body (13) is provided with a channel for passing through the traction wire, the winding post (123) is movably set in the hollow rod body (13) and is connected to the stud (122) in a transmission manner, and the tip of the inserter (1) is provided with a clamping groove (14) for clamping the nail body (2).

2. The fully stitched anchor fixing system according to claim 1, characterized in that, The stud (122) and the winding post (123) are connected by a plug-in connection.

3. The fully stitched anchor fixing system according to claim 1, characterized in that, The lower end of the winding post (123) extends into the stud (122), and a winding hole (1231) is provided at the lower end of the winding post (123).

4. The fully stitched anchor fixing system according to claim 1, characterized in that, The winding post (123) has a winding groove (1232) on its arc-shaped sidewall, which is arranged around the axis of the winding post (123). The left traction line (3) and the right traction line (4) are both wound in the winding groove (1232).

5. The fully stitched anchor fixing system according to claim 1, characterized in that, The handle (11) includes a handle head (111) and a handle body (112). A through hole is provided on the handle head (111), and the winding post (123) is placed in the through hole. A connecting component (113) for connecting the two is provided between the handle head (111) and the handle body (112).

6. The fully stitched anchor fixing system according to claim 5, characterized in that, The connecting assembly (113) includes two arc-shaped plates (1131), which are fixedly connected between the handle head (111) and the handle body (112). The inner arc surface of the arc-shaped plate (1131) fits against the arc surface of the stud (122). There is a gap between the two arc-shaped plates (1131), and the knob (121) is sleeved on the outer arc surface of the two arc-shaped plates (1131).

7. The fully stitched anchor fixing system according to claim 1, characterized in that, The nail body (2) has a polyhedral structure and is provided with a wire groove (21) for clamping by the clamping groove (14).

8. The fully stitched anchor fixing system according to claim 1, characterized in that, The outer surface of the knob (121) is provided with anti-slip grooves, which are evenly distributed along the circumference of the knob (121).

9. The fully stitched anchor fixing system according to claim 1, characterized in that, The fixing points of the left traction line (3) and the right traction line (4) on the nail body (2) are arranged symmetrically about the central axis of the nail body (2).

10. A fully stitched anchor fixing system according to claim 1, characterized in that, The hollow rod (13) has a tapered guide section at its far end.

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