Suture structure of artificial ligaments

Abstract

This utility model discloses a ligament retrieval structure, including a traction line running through the center of the artificial ligament. The artificial ligament includes a joint portion and bony tunnel portions located at both ends of the joint portion. Multiple warp threads are located at both ends of the bony tunnel portions. Multiple warp threads at one end are intersected and distributed on the traction line, with intersection points formed at the intersections. Weft threads are provided on the warp threads, fixing the multiple warp threads to form a cone. The cone is formed on the outer end of the bony tunnel portion. This utility model solves the problems of existing artificial ligaments being prone to inflammation and difficult to insert. By intersecting the warp threads on the traction line and using weft threads to fix the intersecting warp threads and traction line together, and by using different winding or weaving methods of the weft threads to fix the warp threads, the connection strength between the traction line and the warp threads is ensured. This also reduces the use of other components, lowers the risk of inflammation, and reduces the volume of the cone, making the insertion of the artificial ligament smoother.

Description

Technical Field

[0001] This utility model relates to the field of artificial ligament technology, specifically to the ligament take-up structure. Background Technology

[0002] The structure of commercially available artificial ligament products mainly consists of three parts: a free wire in the middle, braided structures on both sides, and a fixation structure at the end. The free wire simulates the anatomical structure of the original ligament, the braided structures on both sides provide lateral fixation for the free wire, and the fixation structure at the end provides overall fixation and pulls the graft to the appropriate position during surgery.

[0003] Most artificial ligaments are manufactured by winding or assembling a synthetic polymer fiber mesh. To facilitate their passage through the bone cavity and ensure proper fixation, traction sutures are attached to the ends of the ligaments. These traction sutures are installed on the ligaments in the following ways: 1. Using a perforated vinyl chloride cap, the traction suture is passed through the cap and knotted together. The cap's material differs from the ligament's material, making it prone to being trapped in the bone cavity and increasing the risk of inflammation; 2. A sheath made of a polymer plastic film is wrapped around the end. This sheath is long and rigid, making it difficult for the artificial ligament to pass through the bone canal. Therefore, to reduce the risk of inflammation and ensure smooth passage through the bone canal, a suture collection structure was designed for this artificial ligament. Utility Model Content

[0004] The purpose of this invention is to provide a ligament take-up structure. By leading all the warp threads on the end face of the bone tunnel to the traction line, the warp threads are arranged to cross on the traction line. The weft threads are then wrapped around the intersection points to fix the warp threads and the traction line together. Subsequently, the weft threads are wrapped or woven to form a cone shape, which reduces the use of other parts and the risk of inflammation. At the same time, the weaving or wrapping method reduces the volume and makes the insertion of the artificial ligament smoother.

[0005] This utility model provides the following technical solution: a traction structure for an artificial ligament, including a traction line running through the center of the artificial ligament. The artificial ligament includes a joint portion and bone tunnel portions located at both ends of the joint portion. Multiple warp threads are located at both ends of the bone tunnel portion. Multiple warp threads at one end are distributed across the traction line, and intersection points are formed at the intersection positions of the multiple warp threads. Weft threads are provided on the warp threads. The weft threads are wrapped around the traction line and the intersection points to fix the warp threads, and the multiple warp threads are fixed to form a cone. The cone is formed on the outer end of the bone tunnel portion.

[0006] Preferably, the weft yarn is wound around the outermost warp yarn to form a cone, making the winding of the weft yarn convenient.

[0007] Preferably, the adjacent loops of the weft threads are all attached together to block the warp threads that are bent outside the intersection point, preventing the bent warp threads from warping onto the surface of the artificial ligament.

[0008] In one embodiment, the bone channel portion has at least one layer, and multiple layers of bone channels overlap and wrap around the traction line. Each layer of the bone channel portion has multiple warp threads distributed in a circumferential array, and the weft threads are woven in a serpentine pattern within the warp threads of the outermost bone channel portion.

[0009] Preferably, the warp threads of each layer of the bone channel are serpentinely wrapped with weft threads.

[0010] Preferably, there are multiple weft threads, and the length of a single weft thread is the circumference of the cone surface. Through multiple circular weft threads, which are interlaced with the spaced warp threads, the connection strength between the warp and weft threads is enhanced, thereby increasing the rigidity of the cone of the artificial ligament.

[0011] Preferably, multiple weft threads are closely attached in sequence, and the closely attached weft threads block the warp threads that are bent outside the intersection point, preventing the bent warp threads from warping.

[0012] In one embodiment, the weft threads are spirally distributed on the cone, and the weft threads are woven in a serpentine pattern within the warp threads on the outer surface.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: by leading all the warp threads on the end face of the bone tunnel to the traction line, and setting the warp threads to cross on the traction line, and using the weft threads to wrap around the intersection points to fix the warp threads and the traction line together, and then using the wrapping or weaving of the weft threads to form a cone, the use of other parts is reduced, the risk of inflammation is reduced, and at the same time, the weaving or wrapping method reduces the volume and makes the artificial ligament insertion smoother. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the intersection point of this utility model;

[0016] Figure 2 This is a diagram showing the winding state at the intersection of the present invention;

[0017] Figure 3 This is a diagram of the wire take-up structure of this utility model;

[0018] Figure 4 This is a diagram of the take-up structure of Embodiment 2 of this utility model;

[0019] Figure 5 This is a schematic diagram of the circular braided structure of the take-up structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the spiral braided structure of the take-up structure of this utility model;

[0021] In the diagram: 1. Meridian; 11. Intersection; 2. Parallel; 3. Joint; 4. Traction line; 5. Bone passage. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please see Figures 1 to 3 This utility model provides a technical solution: a ligament take-up structure, including a traction line 4 running through the center of the artificial ligament. The artificial ligament includes a joint portion 3 and bone tunnel portions 5 located at both ends of the joint portion 3. The joint portion 3 consists of multiple parallel warp lines 1. Multiple warp lines 1 are located at both ends of the bone tunnel portions 5. Multiple warp lines 1 at one end intersect on the traction line 4, and intersection points 11 are formed at the intersections of the warp lines 1. Weft lines 2 are provided on the warp lines 1. The weft lines 2 are wound around the traction line 4 and the intersection points 11 to position and fix the multiple warp lines 1, thus fixing the multiple warp lines 1 into a cone. The cone is formed in the bone tunnel portion. At the outer end of 5, the weft thread 2 is wrapped around the surface of the outermost warp thread 1, and the thread is taken up at the end of the bone tunnel 5. The thread outside the intersection 11 can be bent on the first wrapped weft thread 2. Then, the bent thread bundle is wrapped with the weft thread 2, and the end of the intersecting warp thread 1 is fixed. At the same time, the traction thread 4 is fixed, and the traction thread 4 and the warp thread 1 are wrapped together, so that the traction thread 4 can move together with the artificial ligament. This structure can avoid adding extra components, reduce the volume of the take-up part, make the artificial ligament traction smoother, and reduce the contact between the components and the bone tunnel, thus reducing the risk of inflammation.

[0025] like Figure 3 As shown, the adjacent looping latitude lines 2 are all attached together, and the tightly attached latitude lines 2 cover the folded longitude line 1 outside the intersection point 11 to prevent the folded longitude line 1 from warping.

[0026] Example 2

[0027] like Figure 4 and 5As shown, the bone channel 5 has at least one layer, and multiple layers of bone channel 5 are overlapped and wrapped around the traction line 4. Each layer of bone channel 5 has multiple warp threads 1 distributed in a circular array. The weft threads 2 are woven in a serpentine pattern inside the warp threads 1 of the outermost bone channel 5. The weft threads 2 are wrapped around the spaced warp threads 1 in sequence. There are multiple weft threads 2, and the length of a single weft thread 2 is the length of the circumference of the cone surface. The first weft thread 2 is wrapped around the intersection 11 and the traction line 4 to position the warp thread 1 and determine the angle of the warp thread 1. Then, multiple circular weft threads 2 are set in sequence to wrap the warp thread 1 to form a cone. At the same time, the warp thread 1 outside the intersection 11 is also folded on the first weft thread 2 and covered by the subsequent weft threads 2 to complete the fixation of the warp thread 1 and the traction line 4.

[0028] Multiple weft threads 2 are closely attached to each other in sequence, completely covering the warp thread 1, so that there are no gaps on the cone and the folded warp thread 1 behind the intersection 11 is prevented from warping.

[0029] Example 3

[0030] This embodiment is the same as the other structures in Embodiment 2. The difference is that the warp threads 1 of each layer of the bone channel 5 are serpentinely wrapped with weft threads 2, which further supports the ends of the bone channel 5 of other layers and increases the strength of the ends of the bone channel 5.

[0031] Multiple weft threads 2 are closely attached to each other in sequence, completely covering the warp thread 1, so that there are no gaps on the cone and the folded warp thread 1 behind the intersection 11 is prevented from warping.

[0032] Example 4

[0033] like Figure 6 As shown, the other structures in this embodiment are the same as in embodiment two. The difference is that the weft 2 is spirally distributed on the cone, and the weft 2 is woven in a serpentine pattern inside the warp 1 on the outer surface. The first loop of the weft 2 is wrapped around the intersection 11. Then the warp 1 extending from the other side of the intersection 11 is folded, and the weft 2 continues to be wrapped around the warp 1. At the same time, the folded warp 1 is also wrapped inside the weft 2. Then the weft 2 is spirally woven from the intersection 11 toward the bone tunnel 5 side, entangled with the warp 1, weft 2 and traction line 4, ensuring that the traction line 4 moves the artificial ligament into place.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A suture structure for an artificial ligament, comprising a traction suture running through the center of the artificial ligament, wherein the artificial ligament includes a joint portion and bony tunnel portions located at both ends of the joint portion, characterized in that: Multiple warp threads are located at both ends of the bone passage. Multiple warp threads at one end are intersected and distributed on the traction line. Intersection points are formed at the intersection of the multiple warp threads. Weft threads are provided on the warp threads. The weft threads are wrapped around the traction line and the intersection points to fix the warp threads. Multiple warp threads are fixed to form a cone. The cone is formed on the outer end of the bone passage.

2. The suture structure of the artificial ligament according to claim 1, characterized in that: The latitude lines are wrapped around the outermost longitude line to form a cone.

3. The suture structure of the artificial ligament according to claim 2, characterized in that: The adjacent latitude lines that form a loop are all attached together.

4. The suture structure of the artificial ligament according to claim 1, characterized in that: The bone channel has at least one layer, and multiple layers of bone channels are overlapped and wrapped around the traction line. Each layer of the bone channel has multiple warp threads distributed in a circumferential array, and the weft threads are woven in a serpentine pattern within the warp threads of the outermost bone channel.

5. The suture structure of the artificial ligament according to claim 4, characterized in that: Each layer of the bone passages has weft threads serpentinely intertwined between the warp threads.

6. The suture structure of the artificial ligament according to any one of claims 4 or 5, characterized in that: There are multiple latitude lines, and the length of a single latitude line is the circumference of the cone surface.

7. The suture structure of the artificial ligament according to claim 6, characterized in that: The multiple latitude lines are closely joined together in sequence.

8. The suture structure of the artificial ligament according to any one of claims 4 or 5, characterized in that: The weft threads are spirally distributed on the cone, and the weft threads are woven in a serpentine pattern within the warp threads on the outer surface.

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