CN212490015U

CN212490015U - Full suture fixing device with double-thread structure and rivet with thread

Info

Publication number: CN212490015U
Application number: CN202020295725.9U
Authority: CN
Inventors: 陈晓; 胡叶枫; 季杰; 赖卫国
Original assignee: Shanghai Ligetai Biological Technology Co ltd
Current assignee: Shanghai Ligetai Biotechnology Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2021-02-09
Anticipated expiration: 2030-03-11

Abstract

The utility model provides a full suture fixing device, belted wire rivet of double-line structure, include: a first suture, a second suture, and a pin; the first suture and the second suture are movable through a hollow portion of the interior of the pin, the first suture portion is movable through the interior of the second suture outside one end of the pin, and the second suture portion is movable through the interior of the first suture outside the other end of the pin. The fixing device of the utility model is made of suture and has good biocompatibility. And the sheath structure can be better tightened in the bone canal, and the condition of fixing failure of the full suture fixing device is reduced.

Description

Full suture fixing device with double-thread structure and rivet with thread

Technical Field

The utility model relates to a medical device field specifically, relates to a full suture fixing device, belted wire rivet of double-line structure.

Background

In recent years, the suture anchor technology using titanium alloy, PEEK and polylactic acid as materials is widely used for repairing the damage of the soft tissue and bone tissue connection, such as: rotator cuff injury, labral injury, femoral proximal tendon injury, injury to the anterior and posterior aspects of the labrum on the shoulder joint, ulnar collateral ligament injury reconstruction, biceps brachii distal tendon injury, navicular intercostal ligament repair, triangular fibrocartilage repair, extensor tendon injury repair, and the like. The hard anchor is screwed on the bone tissue near the position needing to be fixed like a screw, the preloaded suture on the anchor penetrates through the soft tissue needing to be repaired, and the soft tissue is contacted and fixed with the surface of the bone tissue by binding and tensioning the suture, so that the physical repair of the damaged tissue is completed. As disclosed in patent document CN 109984784 a.

As the use of hard material anchor technology has become widespread, hard material anchors are known to suffer from a number of drawbacks: after the titanium alloy metal anchor is implanted, inflammation is easy to occur due to rejection reaction, so that bone dissolution occurs at an implanted part, the anchor is loosened and displaced, and the fixing failure is caused. PLA absorbable anchors may degrade and break prematurely after implantation, secondary anchor migration may reduce fixation firmness, and degradants may cause synovitis, osteolysis, and other problems.

Because of the above disadvantages of hard material screws, full suture anchors have been developed. The full suture anchor has the advantages of small implanted bone channel, less bone removal amount, easy repair, excellent replaceability and good biocompatibility. However, due to the structure of the implant, the implant is easy to fall off when the operation is not in place.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a full suture fixing device, belted wire rivet of double-line structure.

According to the utility model provides a pair of full suture fixing device of double-line structure, include: a first suture, a second suture, and a pin;

the first suture and the second suture are movable through a hollow portion of the interior of the pin, the first suture portion is movable through the interior of the second suture outside one end of the pin, and the second suture portion is movable through the interior of the first suture outside the other end of the pin.

Preferably, the pin is woven from polyethylene terephthalate PET.

Preferably, the first and second sutures pass into the hollow portion from one end of the pin and out from the other end.

Preferably, the first and second sutures occupy the hollow portion.

Preferably, the pin is bent one or more times, and the first suture and the second suture are passed through the pin one or more times in a radial direction of the pin.

Preferably, the pin is of a single-layer hollow circular structure.

Preferably, the length of the portion of the first suture passed through the second suture and the portion of the second suture passed through the first suture comprises 5mm to 10 mm.

According to the utility model provides a pair of beltline rivet, including the full suture fixing device of above-mentioned double-line structure.

Compared with the prior art, the utility model discloses following beneficial effect has:

the fixing device of the utility model is made of suture and has good biocompatibility. And the sheath structure can be better tightened in the bone canal, and the condition of fixing failure of the full suture fixing device is reduced.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

fig. 3 is a schematic view of a first application of the present invention;

fig. 4 is a schematic diagram of a second application of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in fig. 1 and 2, according to the present invention, a full suture fixing device with a double-thread structure comprises: a first suture 1, a second suture 2 and a pin 3. The first suture 1 and the second suture 2 are moved through the hollow portion inside the pin 3, the first suture 1 is partially moved through the inside of the second suture 2 outside one end of the pin 3, and the second suture 2 is partially moved through the inside of the first suture 1 outside the other end of the pin 3. The length of the portion of the first suture passing through the second suture and the portion of the second suture passing through the first suture is preferably 5mm to 10 mm.

The suture lines can penetrate through each other by forming two holes on one suture line and penetrating the other suture line from one hole to the other hole.

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

In the first embodiment shown in fig. 1, the pin 3 is bent one or more times, and the first suture 1 and the second suture 2 are passed through the pin one or more times in the radial direction of the pin 3.

In the second embodiment shown in fig. 2, the first suture 1 and the second suture 2 are passed into the hollow portion from one end of the pin 3 and out from the other end, at which time the first suture and the second suture occupy the hollow portion.

The first suture 1, the second suture 2 and the pin 3 are not fixed to each other and various passing structures can slide. The thread sections passing through each other between the stitches do not pass through the sheath, so that the thread sections can assist in the tightening of the sheath when tightening.

When in use, the anchor can be used as a system for fixing the ligament shown in fig. 3, and can also be used as a suture anchor shown in fig. 4, and the suture anchor can be prepared according to actual needs.

When the fixing is needed, the left side of the pin pulls the second suture, and the threading section on the right side is pulled to be close to the sheath because the left side of the threading section on the right side is tensioned; the first suture on the right side is pulled at the same time, and the threading section on the left side is drawn close to the sheath due to the tensioning of the suture on the right side. When the threading section is attached to the sheath, the threading section is thicker than a normal suture line, so that the threading section cannot pass through the small hole in the sheath through the suture line, the sheath receives the force of the threading sections on two sides, and the sheath is extruded and deformed to form a thread ball. The ball becomes larger than the bone tunnel after being formed, thereby obtaining a fixing force.

The thread penetrating section only assists the tightening of the sheath during the thread taking-up process, and the threads on the inner side and the outer side are respectively tied into thread knots after the tightening process, so that the thread penetrating section is not stressed any more.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A full suture fixing device of a double-thread structure is characterized by comprising: a first suture, a second suture, and a pin;

2. The double-thread structured all-stitch fixing device as claimed in claim 1, wherein the pin is woven using polyethylene terephthalate PET.

3. The double wire structure full suture fastening device of claim 1, wherein the first suture and the second suture pass into the hollow portion from one end of the pin and out from the other end.

4. The double wire structure full suture fixation device of claim 3, wherein the first suture and the second suture occupy the hollow portion.

5. The double wire structure full suture fastening device of claim 1, wherein the pin is bent one or more times, and the first suture and the second suture are passed through the pin one or more times in a radial direction of the pin.

6. The double wire structure full suture fastening device according to claim 1, wherein the pin is a single-layer hollow circular structure.

7. The double-thread structured full suture fixation device of claim 1, wherein the length of the portion of the first suture passing through the second suture and the portion of the second suture passing through the first suture comprises 5mm to 10 mm.

8. A clinch rivet comprising the double-thread structure full-seam fastening device of any one of claims 1 to 7.