Anchor nail with line

Abstract

The anchor with the line comprises an anchor body, the anchor body comprises a first anchor body and a second anchor body, the top of the first anchor body and the top of the second anchor body are connected with the line, the first anchor body comprises an anchor front end, an anchor middle and an anchor tail, a through hole is formed in the surface of the anchor front end, and the anchor tail is connected with the through hole. Inverted sawteeth are arranged in the middle of the anchor, the inner wall of the tail of the anchor is fixedly connected with one end of a line belt, the other end of the line belt is fixedly connected with the tail of the second anchor, the structure of the second anchor is the same as that of the first anchor, and semicircular grooves are formed in the inner wall of the first anchor and the inner wall of the second anchor. The use of the inner row of anchors and the outer row of anchors is simultaneously solved by using one anchor main body, and the first anchor and the second anchor are connected through the line belt, so that the device has a certain width, and due to the use of the line belt, the tendon can be fixed by using the surface instead of a suture line, so that the cutting of the tendon is reduced, and the risk of re-fracture of the tendon is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an anchor nail with a wire. Background Art

[0002] The rotator cuff, also known as the tendon cuff or rotator cuff, is composed of the tendons of the supraspinatus, infraspinatus, teres minor and subscapularis muscles that originate from the scapula and end at the upper end of the humerus. The tendons of the above four muscles are closely attached to the shoulder joint capsule when passing through the upper, back and front of the shoulder joint, and are connected to each other to form a nearly circular tendon plate that surrounds the shoulder joint, playing an important role in the stability of the shoulder joint. Rotator cuff rupture is one of the most common shoulder injuries, which is usually torn off from the part connected to the bone. The rotator cuff anchor is an implant used to repair rotator cuff injuries. It plays a vital role in fixing the torn rotator cuff tissue. The use of anchors can increase the contact area between the supraspinatus and the humeral head, thereby reducing the risk of re-injury to the tendon.

[0003] Currently, the mainstream method for rotator cuff tear surgery is arthroscopic repair and reconstruction using wire anchors. During repair, the rotator cuff cannot be sutured directly to the bone. At this time, it needs to be fixed with the help of rivets. Commonly used anchors in clinical practice include full suture anchors, PEEK anchors, and hydroxyapatite absorbable anchors. Most of them are single-body wire anchors. In order to increase the contact area between the torn tendon and the greater tuberosity, it is necessary to implant an outer row of anchors. When suturing the tendon, it is often necessary to adjust the suture position to avoid uneven force distribution on the tendon. The operation is relatively cumbersome and affects the use effect. For this reason, we propose a wire anchor. Utility Model Content

[0004] The purpose of the present invention is to provide a wire anchor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wire anchor, comprising an anchor body, the anchor body comprising a first anchor and a second anchor, the first anchor and the second anchor being connected to the top of a wire belt, the first anchor comprising an anchor front end, an anchor middle part and an anchor tail, a through hole being provided on the front end surface of the anchor, an inverted serration being provided on the middle part of the anchor, an inner wall of the anchor tail being fixedly connected to one end of the wire belt, and the other end of the wire belt being fixedly connected to the anchor tail of the second anchor, and the second anchor structure being the same as the first anchor structure.

[0006] Preferably, the inner walls of the first anchor and the second anchor are both provided with semicircular grooves, and the first anchor and the second anchor are symmetrically arranged.

[0007] Preferably, the front end of the first anchor is a conical structure.

[0008] Preferably, the middle part of the anchor is provided with a plurality of groups of inverted sawteeth in the vertical direction, and the inverted sawteeth are linearly and uniformly distributed.

[0009] Preferably, the wire belt is knitted by polyester suture.

[0010] Compared with the prior art, the device has the following beneficial effects:

[0011] 1. The first anchor and the second anchor are connected through the wire belt, the use of one anchor body simultaneously solves the use of the inner row anchor and the outer row anchor, and the first anchor and the second anchor are connected through the wire belt, so that the device has a certain width, the use of the wire belt can fix the tendon by using a surface instead of a suture, the cutting of the tendon is reduced, and the risk of tendon rupture is reduced.

[0012] 2. The wire belt is located at the tail end of the anchor and is used for pressing down the tendon and fixing the tendon on the greater tubercle, and the anchor has inverted sawtooth structures on both sides to prevent the anchor from being pulled out, when the anchor is implanted into the bone tissue, some elderly people have osteoporosis and are easy to be pulled out, and the inverted sawtooth structure can effectively prevent the anchor from being pulled out of the bone tissue and increase the holding force of the anchor. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the device;

[0014] Figure 2 It is a front view structure schematic view of the device;

[0015] Figure 3 It is a side view structure schematic view of the device.

[0016] In the figure: 1, anchor body; 2, wire belt; 3, first anchor; 4, second anchor; 5, inverted sawtooth; 6, anchor front end; 7, through hole; 8, anchor tail; 9, anchor middle part. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the device will be clearly and completely described below with reference to the drawings in the embodiments of the device. Obviously, the described embodiments are only part of the embodiments of the device, rather than all the embodiments. Based on the embodiments in the device, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the device.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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 internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] See also Figures 1 to 3 , a wire anchor:

[0021] It includes an anchor body 1, which includes a first anchor 3 and a second anchor 4. The tops of the first anchor 3 and the second anchor 4 are connected with a wire belt 2. The first anchor 3 includes an anchor front end 6, an anchor middle part 9 and an anchor tail 8. A through hole 7 is provided on the surface of the anchor front end 6, and an inverted serration 5 is provided on the middle part 9 of the anchor. The inner wall of the anchor tail 8 is fixedly connected to one end of the wire belt 2, and the other end of the wire belt 2 is fixedly connected to the anchor tail 8 of the second anchor 4. The structure of the second anchor 4 is the same as that of the first anchor 3.

[0022] In this embodiment, during use, the first anchor 3 is implanted with an instrument and a hole is punched in advance at the cartilage edge of the humeral head. The first anchor 3 is implanted into the cartilage edge through the front end 6 of the anchor to reset the tendon. Then, after the tendon is pressed down by the wire band 2, the second anchor 4 is implanted below the greater tuberosity of the humerus. The first anchor 3 and the second anchor 4 are connected by the wire band 2, so that the device has a certain width. The use of the wire band 2 can fix the tendon with a surface instead of sutures, reducing the cutting of the tendon and reducing the risk of tendon rupture again. The wire band 2 is located at the tail end of the anchor and is used to press down the tendon and fix the tendon on the greater tuberosity. There are inverted serrations 5 structures on both sides of the anchor to prevent the anchor from withdrawing. When the anchor is implanted in bone tissue, some elderly people have osteoporosis and are easy to pull out. The inverted serrations 5-shaped structure can effectively prevent the anchor from being pulled out of the bone tissue and increase the holding force of the anchor.

[0023] Reference Figure 1-Figure 3The inner walls of the first anchor 3 and the second anchor 4 are both provided with semicircular grooves, and the first anchor 3 and the second anchor 4 are symmetrically arranged. The first anchor 3 and the second anchor 4 have an arc-shaped cross-section due to the semicircular grooves, which increases the contact area with the tissue part and can fit the tissue better during the operation.

[0024] Reference Figure 1-Figure 3 The front end of the first anchor 3 is a conical structure, and the conical structure allows the anchor body 1 to better enter the cartilage.

[0025] Reference Figure 1-Figure 3 The middle part 9 of the anchor is provided with multiple groups of inverted serrations 5 in the vertical direction. The inverted serrations 5 are linearly and evenly distributed. There are inverted serrations 5 structures on both sides of the anchor to prevent the anchor from withdrawing. When the anchor is implanted in the bone tissue, the inverted serrations 5-shaped structure can effectively prevent the anchor from being pulled out of the bone tissue and increase the holding force of the anchor.

[0026] Reference Figure 1-Figure 3 The line is woven with polyester suture to ensure the structural strength of the connection, fix the tendon reliably, and avoid disassembly in the later stage, which improves the performance of the device.

[0027] Working principle: During use, the first anchor 3 is implanted into the instrument and a hole is punched in the cartilage edge of the humeral head in advance. The first anchor 3 is implanted into the cartilage edge through the front end 6 of the anchor to reset the tendon. Then, the tendon is pressed down by the wire band 2, and the second anchor 4 is implanted below the greater tuberosity of the humerus. The first anchor 3 and the second anchor 4 are connected by the wire band 2, so that the device has a certain width. The use of the wire band 2 can fix the tendon with a surface instead of sutures, reducing the cutting of the tendon and reducing the risk of tendon rupture again. The wire band 2 is located at the tail end of the anchor and is used to press down the tendon and fix the tendon on the greater tuberosity. There are inverted serrations 5 structures on both sides of the anchor to prevent the anchor from withdrawing. When the anchor is implanted in bone tissue, some elderly people have osteoporosis and are easy to pull out. The inverted serrations 5-shaped structure can effectively prevent the anchor from being pulled out of the bone tissue and increase the holding force of the anchor.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A wire anchor, comprising an anchor body (1), characterized in that: The anchor body (1) comprises a first anchor (3) and a second anchor (4); the tops of the first anchor (3) and the second anchor (4) are connected with a wire band (2); the first anchor (3) comprises an anchor front end (6), an anchor middle part (9) and an anchor tail (8); a through hole (7) is provided on the surface of the anchor front end (6); the anchor middle part (9) is provided with inverted saw teeth (5); the inner wall of the anchor tail (8) is fixedly connected to one end of the wire band (2); the other end of the wire band (2) is fixedly connected to the anchor tail (8) of the second anchor (4); the structure of the second anchor (4) is the same as that of the first anchor (3).

2. The wire anchor according to claim 1, characterized in that: Semicircular grooves are provided on the inner walls of the first anchor (3) and the second anchor (4), and the first anchor (3) and the second anchor (4) are symmetrically arranged.

3. The wire anchor according to claim 1, characterized in that: The front end of the first anchor (3) is a conical structure.

4. The wire anchor according to claim 1, characterized in that: The middle portion (9) of the anchor nail is provided with a plurality of groups of inverted serrations (5) in the vertical direction, and the inverted serrations (5) are linearly and evenly distributed.

5. The wire anchor according to claim 1, characterized in that: The line belt (2) is woven with polyester suture thread.

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