Full-suture anchor with fixed suture

Abstract

The utility model discloses a full suture anchor with a fixed suture, which comprises a main anchor and an auxiliary anchor, the auxiliary anchor is positioned on the lower side of the main anchor, the suture is inserted between the main anchor and the auxiliary anchor, the main anchor is a tubular body, the main anchor is of a U-shaped structure, the auxiliary anchor is of a thread belt structure, the main anchor is formed by weaving polyethylene or polyester yarns, and the main anchor and the auxiliary anchor are integrally formed. The auxiliary anchor is formed by weaving hard yarns. The anchor nail provided by the utility model is larger in knot size and higher in fixing strength; and the self-locking capacity is achieved, the fixing effect is better, pre-knotting fixing is conducted between the suture and the anchor, and the operation steps of the rotator cuff double-row suture operation can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a full suture anchor with a fixed suture. Background Art

[0002] At present, full suture anchors are widely used. They can be used alone to repair the labrum, and as inner row fixation nails in double row repair of rotator cuff tears. At present, during the use of full suture anchors, some anchors still fall off and inflammation occurs around the anchors. The fixation strength of the anchor is closely related to the size of the knot of the suture anchor in the bone tunnel. The larger the knot of the anchor, the greater the fixation strength of the anchor.

[0003] In rotator cuff tear surgery, double-row anchors are commonly used for fixation and repair. When used, a bone tunnel is first opened, and the full-suture anchor is placed into the inner row bone tunnel. The distal end of the suture is pulled to complete the anchor fixation. Because the suture and anchor of the full-suture anchor products on the market are mostly slidable structures, the suture needs to be knotted and fixed after the suture passes through the tendon tissue, and then the distal end of the suture is fixed with an interface nail to complete the surgery.

[0004] The existing full-suture anchor fixation has the problem of anchor dislocation; at the same time, the full-suture anchor sutures in the double-row suture of rotator cuff tear surgery need to be knotted and fixed, which is a complicated procedure and easily causes rejection reaction. Utility Model Content

[0005] Technical problems to be solved by utility models

[0006] The technical problem to be solved by the utility model is to provide a full suture anchor with a fixed suture, which solves the problems that the existing anchor is easy to fall out, has insufficient fixing strength and has complicated knotting steps.

[0007] Technical Solution

[0008] In order to solve the above problems, the technical solution provided by the utility model is:

[0009] A full suture anchor with a fixed suture comprises a main anchor and a secondary anchor, wherein the secondary anchor is located at the lower side of the main anchor, and a suture is interspersed between the main anchor and the secondary anchor.

[0010] Furthermore, the main anchor is a tubular body.

[0011] Furthermore, the main anchor is a U-shaped structure.

[0012] Furthermore, the secondary anchor is a wire belt structure.

[0013] Furthermore, the main anchor is woven from polyethylene or polyester yarn.

[0014] Furthermore, the secondary anchor is woven from hard yarn.

[0015] Furthermore, the suture passes through both sides of the bottom of the main anchor, passes through the secondary anchors respectively and is knotted and fixed. After the suture is knotted, it passes through both sides of the secondary anchor again, passes through the main anchor, and passes out from the upper side of the main anchor.

[0016] Furthermore, the second passing position of the sutures of the main anchor and the auxiliary anchor is located outside the first passing position.

[0017] Furthermore, the secondary anchor is a tubular body.

[0018] Furthermore, the secondary anchor is a soft anchor or made of PEEK material.

[0019] Beneficial Effects

[0020] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0021] 1. The anchor has a larger knot volume and higher fixing strength; it has self-locking ability and better fixing effect.

[0022] 2. Pre-knotting and fixing the sutures and anchors can reduce the number of steps required for double-row suture of the rotator cuff.

[0023] 3. In the double-row suture procedure for the rotator cuff, the sutures do not need to be knotted after passing through the tendon tissue, thus reducing the body's rejection reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an embodiment of the present utility model;

[0025] Figure 2 A schematic diagram of the embodiment of the utility model being inserted into a bone tunnel;

[0026] Figure 3 This is a schematic diagram of knotting in a bone tunnel according to an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0029] Example

[0030] Combined with Figure 1-3 A full suture anchor with a fixed suture, which is composed of a main anchor 1 and a secondary anchor 3, and a suture 2 for connecting the main anchor 1 and the secondary anchor 3 is inserted between the main anchor 1 and the secondary anchor 3.

[0031] The secondary anchor 3 is arranged in cooperation with the bottom of the main anchor 1. The main anchor 1 is a U-shaped structure. The secondary anchor 3 is preferably arranged at the central position of the lower bottom side of the main anchor 1, so that the main anchor 1 can be evenly stressed when the secondary anchor 3 rises. When the main anchor 1 is deformed due to the action of the secondary anchor 3, the main anchor 1 will undergo symmetrical outward expansion deformation, and the main anchor 1 will not be deformed to any one side when the secondary anchor 3 squeezes the main anchor 1.

[0032] The main anchor 1 is a tubular body, which is woven from polyethylene or polyester yarns, and is formed by directly weaving the polyethylene or polyester yarns into a U-shaped tubular body.

[0033] The auxiliary anchor 3 is a wire belt structure, which is woven from hard yarns, that is, the auxiliary anchor 3 is a wire anchor with a certain bending strength that has been hardened or rigid yarns have been added during weaving.

[0034] The suture 2 is used to connect the main anchor 1 and the secondary anchor 3, and is used by doctors to pull the suture 2 to make the secondary anchor 3 rise and squeeze the main anchor 1, so that the main anchor 1 is deformed and fixed in the bone tunnel.

[0035] The suture 2 is inserted from the main anchor and circulates between the main anchor 1 and the auxiliary anchor 3 from the inside to the outside. The specific method is preferably:

[0036] The suture 2 starts from the bottom of the main anchor 1, and the two end ports of the suture 2 pass through the two sides of the lower side of the main anchor 1. The suture 2 after passing through passes through the secondary anchor 3. The ends of the suture 2 passing through the secondary anchor 3 are respectively knotted and fixed on the lower side of the secondary anchor 3, so that the suture 2 will not loosen and fall off from the secondary anchor 3. The knotted suture 2 passes through the two sides of the secondary anchor 3 again from bottom to top. At this time, the position of passing through the secondary anchor 3 is outside the position of passing through the secondary anchor 3 for the first time. After passing through the upper side of the secondary anchor 3, the suture 2 is directly transmitted into the main anchor 1 and passes through the upper side of the main anchor 1. The suture 2 passes through the inner sides of the end walls on both sides of the main anchor 1 to increase the friction between the main anchor 1 and the bone tunnel wall.

[0037] In the formed full suture anchor with fixed sutures, the number of sutures 2 is not limited. The sutures 2 and the anchor are assembled in each finished full suture anchor, thereby forming different full suture anchors with single or multiple sutures 2. Doctors can choose to use full suture anchors with single / multiple sutures according to usage.

[0038] When in use, the medical staff pulls the distal end of the suture 2, and the force on the suture 2 will cause the secondary anchor 3 to move upward. At this time, since the main anchor 1 is in the bone tunnel and has friction when in use, the movement displacement is smaller than that of the secondary anchor 3. As a result, when the secondary anchor 3 moves toward the main anchor 1 and squeezes the main anchor 1, deformation will occur. At this time, the main anchor 1 completes the knotting through deformation, so that the main anchor 1 is firmly fixed in the bone tunnel.

[0039] The full suture anchor with fixed sutures of the above technical solution needs to be used in conjunction with auxiliary equipment. Medical staff insert the full suture anchor with fixed sutures into the bone tunnel by using auxiliary equipment. After inserting it to the designated position in the bone tunnel, the auxiliary equipment is removed, thereby leaving the full suture anchor with fixed sutures in the bone tunnel. At this time, the main anchor 1 is in full contact with the bone tunnel.

[0040] After the full suture anchor with fixed suture is inserted into the bone tunnel with the auxiliary instrument, the distal end of the suture 2 is pulled to complete the fixation, and the auxiliary anchor 3 and the suture knot are knotted with the main anchor 1 at the same time to make the anchor knot larger and the fixation strength correspondingly greater; because the auxiliary anchor 3 has a certain rigidity, it can play a self-locking role, thereby avoiding the loosening of the suture knot when the distal end of the anchor is not fixed after implantation; and the suture 2 has been knotted and fixed with the main anchor 1, and the knotting operation can be avoided during the double-row suture procedure for rotator cuff tear.

[0041] In order to adapt to bone tunnels of different shapes and different usage scenarios, the auxiliary anchor 3 can also be woven into a tubular body, or the material of the auxiliary anchor can be replaced with a soft anchor / PEEK material.

[0042] The position of the secondary anchor 3 can be changed according to design requirements, such as placing the secondary anchor 3 in the main anchor 1 and fixing it with the seam 2 and the main anchor 1 accordingly.

[0043] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A full suture anchor with fixed suture, characterized in that: It comprises a main anchor and a secondary anchor, wherein the secondary anchor is located at the lower side of the main anchor, and sutures are interspersed between the main anchor and the secondary anchor.

2. A full suture anchor with fixed suture according to claim 1, characterized in that: The main anchor is a tubular body.

3. A full suture anchor with fixed suture according to claim 1, characterized in that: The main anchor is a U-shaped structure.

4. The full suture anchor with fixed suture according to claim 1, characterized in that: The secondary anchor is a wire belt structure.

5. The full suture anchor with fixed suture according to claim 1, characterized in that: The main anchor is woven from polyethylene or polyester yarn.

6. The full suture anchor with fixed suture according to claim 4, characterized in that: The secondary anchor is woven from hard yarn.

7. The full suture anchor with fixed suture according to claim 1, characterized in that: The sutures pass through the two sides of the bottom of the main anchor, pass through the auxiliary anchors respectively and are knotted and fixed. After the sutures are knotted, they pass through the two sides of the auxiliary anchors again, pass through the main anchor, and pass out from the upper side of the main anchor.

8. The full suture anchor with fixed suture according to claim 1, characterized in that: The second passing position of the suture of the main anchor and the auxiliary anchor is located outside the first passing position.

9. The full suture anchor with fixed suture according to claim 1, characterized in that: The secondary anchor is a tubular body.

10. A full suture anchor with fixed suture according to claim 9, characterized in that: The secondary anchor is made of a soft anchor or PEEK material.

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