Full-sewing fixing device with double-line structure, use method and rivet with line

Abstract

The present invention provides a double-line structure full suture fixation device, a method of use, and a wired rivet, comprising: a first suture, a second suture, and a pin; the first suture and the second suture move through the hollow portion inside the pin, the first suture part moves through the inside of the second suture on the outside of one end of the pin, and the second suture part moves through the inside of the first suture on the outside of the other end of the pin. The fixation device of the present invention is made of suture and has good biocompatibility. It can better tighten the sheath structure in the bone tunnel and reduce the failure of fixation of the full suture fixation device.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a full-suture fixing device with a double-line structure, a use method and a rivet with a line. Background Art

[0002] In recent years, the wire anchor technology made of titanium alloy, PEEK and polylactic acid materials has been widely used in the repair of injuries at the junction of soft tissue and bone tissue, such as: rotator cuff injury, labrum injury, proximal femoral tendon injury, anterior and posterior injuries of the labrum superior to the shoulder joint, reconstruction of ulnar collateral ligament injury, distal biceps tendon injury, scapholunate interosseous ligament repair, triangular fibrocartilage repair, extensor tendon injury repair, etc. This type of hard anchor is similar to a screw that is screwed on the bone tissue near the part that needs to be fixed. The preloaded suture on the anchor passes through the soft tissue that needs to be repaired, and the soft tissue is fixed to the surface of the bone tissue by binding and tightening the suture to complete the physical repair of the damaged tissue. Just like the wire anchor disclosed in patent document CN 109984784A.

[0003] As the application of hard material anchor technology becomes more and more widespread, hard material anchors are known to have many defects: titanium alloy metal anchors are prone to inflammation due to rejection reaction after implantation, causing bone dissolution at the implantation site, causing anchor loosening and displacement, resulting in fixation failure. PLA absorbable anchors may degrade and break prematurely after implantation, and secondary anchor displacement will lead to reduced fixation firmness. Degraded products may cause synovitis, bone dissolution and other problems.

[0004] Because of the above disadvantages of hard material screws, full suture anchors were developed. Full suture anchors have small bone channels for implantation, less bone removal, easy repair, excellent replaceability, and good biocompatibility. However, due to its own structure, it is easy to fall off after implantation if the operation is not in place. Summary of the invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a full-sewing fixing device with a double-line structure, a use method and a rivet with a line.

[0006] A double-thread structure full suture fixing device according to the present invention comprises: a first suture, a second suture and a pin;

[0007] The first suture and the second suture move through the hollow part inside the pin, and the first suture part moves through the inside of the second suture on the outside of one end of the pin, and the second suture part moves through the inside of the first suture on the outside of the other end of the pin.

[0008] Preferably, the pins are woven from polyethylene terephthalate (PET).

[0009] Preferably, the first suture and the second suture pass through the hollow portion from one end of the pin and pass through the other end.

[0010] Preferably, the first suture and the second suture completely occupy the hollow portion.

[0011] Preferably, the pin is bent one or more times, and the first suture and the second suture pass through the pin one or more times in the radial direction of the pin.

[0012] Preferably, the pin is a single-layer hollow circular structure.

[0013] Preferably, the length of the portion where the first suture passes through the second suture and the length of the portion where the second suture passes through the first suture are comprised between 5 mm and 10 mm.

[0014] According to a method for using a double-line structured full suture fixation device provided by the present invention, the first suture at one end of the pin and the second suture at the other end of the pin are pulled, so that the pin is squeezed and deformed by the outer sides of both ends, thereby being fixed in the bone tunnel.

[0015] A rivet with thread provided by the present invention comprises the full-sewing thread fixing device with a double-thread structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The fixation device of the present invention is made of sutures and has good biocompatibility. It can better tighten the sheath structure in the bone tunnel and reduce the failure of fixation by the full suture fixation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 It is a structural schematic diagram of the first embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of a second embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of a first application of the present invention;

[0022] Figure 4 This is a schematic diagram of a second application of the present invention. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0024] like Figure 1 and Figure 2 As shown, a double-thread structure full suture fixing device according to the present invention comprises: a first suture 1, a second suture 2 and a pin 3. The first suture 1 and the second suture 2 move through the hollow part inside the pin 3, and the first suture 1 part moves through the inside of the second suture 2 outside one end of the pin 3, and the second suture 2 part moves through the inside of the first suture 1 outside the other end of the pin 3. The length of the part of the first suture passing through the second suture and the part of the second suture passing through the first suture is preferably 5mm to 10mm.

[0025] The sutures can be passed through each other by opening two holes on one of the sutures, and passing the other suture through one hole and then out of the other hole.

[0026] In this embodiment, the pin is woven from polyethylene terephthalate (PET), and the pin is a single-layer hollow circular structure.

[0027] exist Figure 1 In the first embodiment shown, the pin 3 is bent once or multiple times, and the first suture 1 and the second suture 2 pass through the pin 3 once or multiple times in the radial direction of the pin 3 .

[0028] exist Figure 2 In the second embodiment shown, the first suture 1 and the second suture 2 pass through the hollow portion from one end of the pin 3 and pass through the other end. At this time, the first suture and the second suture fill the hollow portion.

[0029] The first suture 1, the second suture 2 and the pin 3 are not fixed to each other, and various threading structures can slide. The thread segments that pass through each other between the sutures will not pass through the sheath, so the thread segments can assist the tightening of the sheath during tightening.

[0030] When used, it can be used as Figure 3 The system of fixing ligaments shown can also be used as Figure 4 The wire anchors shown are used and adjusted according to actual needs.

[0031] When fixation is required, the left side of the pin pulls the second suture, and the threading segment on the right side will move closer to the sheath due to the tension on the left side; at the same time, the first suture on the right side is pulled, and the threading segment on the left side will also move closer to the sheath due to the tension of the suture on the right side. When the threading segment is attached to the sheath, because the threading segment is thicker than the normal suture, it will not be able to pass through the small hole on the sheath through the suture, causing the sheath to receive the force of the threading segments on both sides, and the sheath will be squeezed and deformed to form a thread ball. After the thread ball is formed, it will become larger than the bone canal, thereby obtaining fixation force.

[0032] The threading section only assists the tightening of the sheath when the thread is collected. After tightening, the inner and outer sutures are tied into knots respectively, so that the threading section is no longer subjected to stress.

[0033] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A double-line structure full suture fixation device, characterized in that: include: a first suture, a second suture, and a pin; The first suture and the second suture move through the hollow portion inside the pin, the first suture part moves through the inside of the second suture outside one end of the pin, and the second suture part moves through the inside of the first suture outside the other end of the pin; The lengths of a portion of the first suture passing through the second suture and a portion of the second suture passing through the first suture include 5 mm to 10 mm.

2. The double-line structure full suture fixation device according to claim 1, characterized in that: The pin is woven from polyethylene terephthalate (PET).

3. The double-line structure full suture fixation device according to claim 1, characterized in that: The first suture and the second suture are passed through the hollow portion from one end of the pin and passed out from the other end.

4. The double-line structure full suture fixation device according to claim 3, characterized in that: The first suture and the second suture fill up the hollow portion.

5. The double-line structure full suture fixation device according to claim 1, characterized in that: The pin is bent one or more times, and the first suture and the second suture pass through the pin one or more times along the radial direction of the pin.

6. The double-line structure full suture fixation device according to claim 1, characterized in that: The pin is a single-layer hollow circular structure.

7. A rivet with a wire, characterized in that: A full suture fixation device comprising a double-line structure as described in any one of claims 1 to 6.

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