Anchoring system

Abstract

The utility model provides a kind of anchor system, including anchor and placement tool, anchor main body can be changed from arrangement configuration to expansion configuration, in arrangement configuration, the anchor main body is installed in the placement tool in inverted form, can be achieved from front side approach access meniscus root or ligament insertion point fixation, not only significantly improve the biological healing efficiency of fixed, while also greatly optimize and simplify overall surgical operation process, help to improve surgical efficiency and patient prognosis.

Description

Technical Field

[0001] This utility model relates to the field of anchor device technology, and in particular to an anchor system. Background Technology

[0002] Posterior root meniscus injuries and cruciate ligament avulsion fractures are common and serious knee injuries. They are crucial for knee joint stability and long-term function. If not effectively repaired, they can lead to joint instability, pain, and accelerate the development of osteoarthritis. Currently, the main techniques used clinically to treat these injuries include transtibial tunnel suture and suture anchor suture.

[0003] Tibial tunnel suture is a commonly used method that uses a bone tunnel created in the tibial plateau to deliver sutures and fix the damaged tissue. However, this technique is prone to the "bungee jump effect" and "windshield wiper effect," resulting in insufficient fixation strength and stability, poor biomechanical performance, and hindering tissue healing.

[0004] Another technique is the suture anchor technique, which involves inserting anchors into the anatomical root attachment site to facilitate the suture channel through the torn meniscus root. However, since the use of suture anchors usually requires the assistance of an auxiliary posteromedial or posterolateral surgical approach, this not only increases the complexity of the operation and requires extremely high surgical skills, but also makes precise placement of the anchors difficult and poses a high risk of iatrogenic injury.

[0005] Given these limitations of existing technologies, there is an urgent clinical need for an anchor that can improve biological efficacy and simplify surgical procedures. Utility Model Content

[0006] Therefore, in response to at least one of the above problems, this utility model provides an anchor system.

[0007] This utility model is achieved using the following solution:

[0008] This utility model proposes an anchor system, including an anchor and an insertion tool. The anchor is removably installed on the insertion tool. The anchor includes an anchor body and at least one thread. The anchor body has a wall portion with multiple through-points. The thread passes through the wall portion alternately at the multiple through-points. The anchor body is made of a soft material and can be manipulated to change from an arrangement configuration to an expansion configuration. In the arrangement configuration, the anchor body is installed inverted on the insertion tool.

[0009] In one embodiment, in the arrangement configuration, the anchor body is a curved structure, the anchor body includes a first end, a second end, and a connecting portion connecting the first end and the second end, the insertion tool includes an operating portion and a rod portion connected to the operating portion, the end of the rod portion away from the operating portion is defined as the distal end, and the first end and the second end of the anchor body are arranged substantially toward the distal end of the rod portion, thereby realizing the inverted installation of the anchor body on the insertion tool.

[0010] In one embodiment, the anchor body forms a linear curved structure in the shape of a "U" or "V", and the connecting part is arc-shaped at the bend.

[0011] In one embodiment, the suture includes a first suture segment and a second suture segment extending outward from the first end and the second end of the anchor body, respectively. The distal end of the rod is provided with a suture fixing part, and the first suture segment and the second suture segment are removably fixed to the suture fixing part.

[0012] In one embodiment, the suture fixing part is a groove, the groove width of which is set to be able to hold the first suture segment and the second suture segment therein, thereby realizing the removable fixing of the first suture segment and the second suture segment to the suture fixing part.

[0013] In one embodiment, the rod portion has a locking interface, and the anchor body can be locked into the locking interface, thereby allowing the anchor body to be removably installed on the rod portion.

[0014] In one embodiment, the card interface is barbed.

[0015] In one embodiment, the anchor body is a tubular braided fiber material, the wall of the anchor body is provided with an even number of through positions, and the stitching includes a first stitch segment and a second stitch segment that respectively pass through the center of the first end and the second end of the anchor body.

[0016] In one embodiment, the anchor body is made of braided suture material, and the anchor is a fully sutured anchor.

[0017] In one embodiment, the anchor body is connected to two stitches.

[0018] The technical solution provided by this utility model has the following technical effects:

[0019] This invention proposes an anchor system, including an anchor and an insertion tool. The anchor body can be transformed from an arrangement configuration to an expansion configuration. In the arrangement configuration, the anchor body is inverted and installed on the insertion tool, allowing it to enter from the anterior approach to fix the meniscus root or ligament insertion point. This not only significantly improves the biological healing efficacy of the fixation but also greatly optimizes and simplifies the overall surgical procedure, helping to improve surgical efficiency and patient prognosis. Attached Figure Description

[0020] Figure 1 This is a perspective view of the anchor system according to an embodiment of the present utility model;

[0021] Figure 2 This is a perspective view of the anchor system of this embodiment from another direction;

[0022] Figure 3 This is a front view of the insertion tool in this embodiment;

[0023] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 yes Figure 3 Enlarged view at point B in the middle;

[0025] Figure 6 This is a front view of the anchor in this embodiment;

[0026] Figure 7 This is a full sectional top view of the anchor in this embodiment in a straight position (i.e., before it is installed in the insertion tool);

[0027] Figure 8 This is a front view of the anchor in this embodiment in a straight position;

[0028] Figure 9 yes Figure 8 Cross-sectional view at point C;

[0029] Figure 10 This is a schematic diagram of the anchor system of this embodiment acting on the tibia. Detailed Implementation

[0030] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] like Figure 1-10 As shown, this embodiment provides an anchor system 1, including an anchor 10 and an insertion tool 20. The anchor 10 is removably mounted on the insertion tool 20, which can deliver the anchor 10 to a designated position to facilitate subsequent surgical procedures.

[0033] The anchor 10 includes an anchor body 11 and a suture 12. The anchor body 11 has a fibrous structure and is made of a soft material. Specifically, the fibrous structure refers to a woven fibrous material, such as woven suture, which is made of multiple sutures woven together. An anchor 10 composed of sutures can be called a full suture anchor. However, it is not limited to this; the fibrous structure of the anchor body 11 can also be a fiber mesh, etc. Of course, the anchor body 11 can also be other soft materials suitable for medical use.

[0034] In this embodiment, the anchor body 11 is a tubular braided fabric; more specifically, the anchor body 11 is a tubular braided stitching, such as... Figure 7 As shown. In some other embodiments, the anchor body may also be a flat woven fabric of a certain length.

[0035] The anchor body 11 can be installed and mated with the insertion tool 20. The anchor body 11, installed on the insertion tool 20, is arranged in a U-shaped or V-shaped linear curved structure. The anchor body 11 includes a first end 111, a second end 112, and a connecting portion 113. The first end 111 and the second end 112 are connected to each other through the connecting portion 113. In this embodiment, the first end 111 and the second end 112 are arranged in a V-shape, and the connecting portion 113 is arc-shaped at the bend, resulting in a more natural transition on the anchor body 11 and facilitating its subsequent placement.

[0036] The anchor body 11 has a wall portion 14, and the stitching 12 is alternately inserted into the wall portion 14. Figure 7 The anchor body 11 is a cross-sectional view in a flat state (i.e., before installation of the insertion tool 20). For example... Figure 7As shown, the wall portion 14 has multiple passing positions 3, through which the sewing thread 12 alternates between inside and outside. The sewing thread 12 may be woven through the wall portion 14 of the anchor body 11. Alternatively, a hole is provided at the passing position 3, through which the sewing thread 12 passes through the wall portion 14 of the anchor body 11. In this embodiment, four passing positions 3 are shown, labeled 31, 32, 33, and 34. Of course, in other embodiments, more or fewer passing positions may be provided. Generally, providing at least three passing positions is a preferred implementation. In this embodiment, the first sewing segment 121 and the second sewing segment 122 of the sewing thread 12 emerge from the center of the first end 111 and the second end 112 of the tubular braided fiber material anchor body 11, respectively, thereby increasing the contact length between the sewing thread 12 and the anchor body 11 and improving the stress distribution of the anchor body 11. In this structure, the anchor body 11 has an even number of passing positions 3.

[0037] Reference Figures 3-5 The insertion tool 20 includes an operating part 21 and a rod part 22 connected to the operating part 21. The operating part 21 is a handle, and the rod part 22 is a slender rod. The rod part 22 is provided with a locking interface 23, in which the anchor body 11 can be locked into the locking interface 23, thereby allowing the anchor body 11 to be removably installed on the rod part 22. Of course, in other embodiments, the anchor body 11 can be installed on other suitable parts of the insertion tool 20, such as the operating part 21.

[0038] In this embodiment, the end of the rod 22 closer to the operating part 21 is defined as the proximal end, and the end farther from the operating part 21 is defined as the distal end; the first end 111 and the second end 112 of the anchor body 11 are arranged basically toward the distal end of the rod 22, that is, the anchor body 11 is installed upside down on the insertion tool 20.

[0039] The distal end of the rod 22 is provided with a suture fixing part 24, and the first suture segment 121 and the second suture segment 122 of the suture 12 are removably (i.e., temporarily) fixed to the suture fixing part 24 at the distal end of the rod 22. Specifically, in this embodiment, the suture fixing part 24 is a slot, the width of which is set to be able to fit the first suture segment 121 and the second suture segment 122 of the suture 12 into it, thereby removably fixing the first suture segment 121 and the second suture segment 122 to the suture fixing part 24. Alternatively, the first suture segment 121 and the second suture segment 122 of the suture 12 can also be temporarily fixed to the suture fixing part 24 more reliably by tying a slip knot.

[0040] When using this anchor system 1, on the tibia 2 (refer to...) Figure 10First, a bone tunnel is created. After the bone tunnel is created, the suture 12 of the anchor 10 is inserted into the bone tunnel to the tibial plateau using the insertion tool 20. The two suture segments 121 and 122 (i.e., the two limbs of the suture) of the anchor 10 suture 12 are grasped using the suture grasping tool. At this time, the anchor body 11 is separated from the inserter, and the two suture segments 121 and 122 of the suture 12 are pulled out of the body. Then, the anchor body 11 is pulled into the bone tunnel by the two suture segments 121 and 122 of the suture 12. The suture 12 is continued to be pulled, and the inverted anchor body 11 expands in the bone tunnel to form a fixation. That is, when the two suture segments 121 and 122 of the suture 12 are pulled, the length of the anchor body 11 in the bone tunnel is compressed, causing its circumferential expansion. The anchor body 11 is deformed into a spherical shape, so that the anchor body 11 in the bone tunnel resists the bone, thereby obtaining good fixation strength. The anchor body 11 changes from an arrangement configuration (the arrangement configuration refers to the configuration when placed in the insertion tool 2) to an expansion configuration. Finally, a suture guide is used to suture the posterior root of the meniscus. Using the anchor system 1 with the inverted fixing anchor 10, fixation of the meniscal root or ligament insertion can be achieved from an anterior approach. This not only significantly improves the biological healing efficacy of the fixation but also greatly optimizes and simplifies the overall surgical procedure, contributing to improved surgical efficiency and patient outcomes. In some embodiments, the anchor body 11 can switch between an arrangement configuration and an expansion configuration.

[0041] Reference Figures 8-9 In this embodiment, the anchor body 11 is connected to two sutures 12, which is more conducive to adapting to specific surgical needs. Of course, in other embodiments, one or more sutures 12 may be provided.

[0042] Reference Figures 3-5 The locking interface 23 is barbed, which makes it easy to fix the anchor body 11 to the locking interface 23 and prevents it from falling off, and also makes it easy to separate the anchor body 11 from the rod 22 from the locking interface 23.

[0043] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. An anchor system comprising an anchor and an insertion tool, wherein the anchor is removably mounted on the insertion tool; characterized in that, The anchor includes an anchor body and at least one thread. The anchor body has a wall portion with multiple through-points. The thread passes through the wall portion alternately inside and outside at the multiple through-points. The anchor body is made of a soft material and can be operated to change from an arrangement configuration to an expansion configuration. In the arrangement configuration, the anchor body is installed inverted on the insertion tool.

2. The anchor system according to claim 1, characterized in that: In the arrangement configuration, the anchor body is a curved structure, the anchor body includes a first end, a second end, and a connecting portion connecting the first end and the second end, the insertion tool includes an operating portion and a rod portion connected to the operating portion, the end of the rod portion away from the operating portion is defined as the distal end, the first end and the second end of the anchor body are arranged substantially toward the distal end of the rod portion, thereby realizing the inverted installation of the anchor body on the insertion tool.

3. The anchor system according to claim 2, characterized in that: The anchor body forms a linear curved structure in the shape of "U" or "V", and the connecting part is arc-shaped at the bend.

4. The anchor system according to claim 2, characterized in that: The suture includes a first suture segment and a second suture segment extending outward from the first end and the second end of the anchor body, respectively. The distal end of the rod is provided with a suture fixing part, and the first suture segment and the second suture segment are removably fixed to the suture fixing part.

5. The anchor system according to claim 4, characterized in that: The suture fixing part is a groove, and the groove width is set to be able to hold the first suture segment and the second suture segment inside, thereby realizing the removable fixing of the first suture segment and the second suture segment to the suture fixing part.

6. The anchor system according to claim 2, characterized in that: The rod has a locking interface, and the anchor body can be locked into the locking interface, thereby allowing the anchor body to be removably installed on the rod.

7. The anchor system according to claim 6, characterized in that: The card interface is barbed.

8. The anchor system according to claim 1, characterized in that: The anchor body is made of tubular braided fiber material, and the wall of the anchor body has an even number of through positions. The stitching includes a first stitch segment and a second stitch segment that pass through the center of the first end and the second end of the anchor body, respectively.

9. The anchor system according to claim 1, characterized in that: The anchor body is made of braided suture material, and the anchor is a fully sutured anchor.

10. The anchor system according to claim 1, characterized in that: The anchor body is connected by two seams.

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