CN216021207U

CN216021207U - Knotting-free full suture anchor

Info

Publication number: CN216021207U
Application number: CN202121767579.6U
Authority: CN
Inventors: 王德松; 钟卫彪
Original assignee: Jiangsu Arthhope Medical Device Co ltd
Current assignee: Jiangsu Arthhope Medical Device Co ltd
Priority date: 2021-07-31
Filing date: 2021-07-31
Publication date: 2022-03-15
Anticipated expiration: 2031-07-31

Abstract

The utility model discloses a knotting-free full-suture anchor, which comprises an anchor, a suture, a traction wire and an inserter, wherein the anchor and the suture are provided with central holes, one end of the suture extends into the central hole of the anchor, one end of the traction wire is provided with a wire loop, one end of the traction wire penetrates through the central hole of the suture, the wire loop extends out of the suture, and the inserter is propped against the lower part of the anchor when in use. The utility model can fix the soft tissue only by tightening the suture, thereby avoiding or reducing the bag phenomenon generated when the suture is knotted and the human tissue is recovered.

Description

Knotting-free full suture anchor

Technical Field

The utility model relates to the field of surgical tools, in particular to an anchor nail for connecting and fixing human soft tissues and bone tissues.

Background

A suture anchor is a commonly used operation material in the medical field, in particular to the orthopedic field, and is suitable for connecting and fixing human soft tissues and bone tissues. Typically including hard and soft suture anchors. The hard anchor mainly comprises metal anchoring, PEEK anchor, absorbable material anchor and the like, the soft anchor is a full suture anchor which is made in recent years, and is different from the traditional hard anchor, the full suture anchor is soft in material, few in removal of operation punching bone, high in fixing strength, convenient to operate, and good in biocompatibility, and the suture and the anchor are made of the same material.

In the actual operation, the suture needs to be tied with the soft tissue first, and then the soft tissue is fixed at the anchoring position or the operation point by knotting. The method is effective, but as known by people in the industry, when foreign matters in human bodies are recovered at a later stage, connective tissues like bags are usually grown to wrap the foreign matters, the knotting of the suture is equivalent to the foreign matters, and the larger the knot is, the larger the bag is, and the foreign matters are easy to be inflamed.

Disclosure of Invention

The utility model aims to provide a knotting-free full suture anchor which can fix soft tissues only by tightening sutures, so that the phenomenon of 'wrapping' caused by suture knotting when human tissues are recovered is avoided or reduced.

In order to achieve the purpose, the technical scheme of the utility model is as follows: a knotting-free full-suture anchor comprises an anchor, a suture, a traction wire and an inserter, wherein the anchor and the suture are provided with central holes, one end of the suture extends into the central hole of the anchor, one end of the traction wire is provided with a wire loop, one end of the traction wire penetrates through the central hole of the suture and extends out of the suture, and the inserter is abutted against the lower part of the anchor when in use.

Preferably, the anchor and the suture are both woven round tube structures. The same material and good biocompatibility.

Preferably, the anchor and the suture are both woven by ultra-high molecular weight polyethylene fiber or polyester fiber raw materials. The same material, good biocompatibility, soft nail material and less bone removal in surgical perforation.

Preferably, one end of the suture extends into the central bore of the anchor and is flush with one end of the anchor, the other end naturally extending. The free end of the suture can be better aligned with the central hole of the anchor when passing through.

Preferably, a section of the suture in the anchor center hole is provided with a penetrating hole close to both ends of the anchor, and one end of the traction wire penetrates through one penetrating hole and penetrates out of the other penetrating hole. The free end of the suture is conveniently drawn through by the traction wire during the operation.

Preferably, the suture and the traction wire are flat belts, circular belts or circular belt structures with the middle part being a flat belt and two ends being circular belts. Is suitable for different operation requirements.

Preferably, the inserter is a rod-shaped structure made of stainless steel or nitinol.

After the structure is adopted, the anchor is inserted into a bone channel through the inserter to form a U shape during the operation, the free end of the suture is only required to penetrate through soft tissues or ligaments needing to be sutured, then is sleeved into the wire loop of the traction wire, the other end of the traction wire is pulled, the free end of the suture is passively pulled into one of the penetrating holes and then penetrates out of the other penetrating hole, and the suture is tightened after the traction wire is taken out. The anchor can extrude the spongy bone inside the bone canal gradually in the suture tightening process to form an anchoring point so as to achieve the purpose of anchoring and fixing. Therefore, knotting is not needed, and the 'bag' phenomenon generated when the suture is knotted and the human tissue is recovered is avoided or reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the use state of FIG. 1;

FIG. 3 is a schematic view of the anchor of FIG. 2 in a fully deformed state;

FIG. 4 is a deployment view of a suture of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are given in conjunction with the accompanying drawings.

First embodiment, referring to fig. 1, 2 and 3, a knotting-free full suture anchor comprises an anchor 1, a suture 2, a pulling wire 3 and an inserter 4, wherein the anchor 1 and the suture 2 are provided with a central hole, one end of the suture 2 extends into the central hole of the anchor 1, one end of the pulling wire 3 is provided with a wire loop 5, one end of the pulling wire 3 passes through the central hole of the suture 2, the wire loop 5 extends out of the suture 2, and the inserter 4 is pressed against the lower part of the anchor 1 when in use.

The anchor 1 and the suture 2 are both woven round tube structures woven by ultra-high molecular weight polyethylene fibers. Of course, the fabric may be woven from a polyester fiber material. The anchor 1 and the suture 2 are made of the same material, have good biocompatibility and are soft and easy to operate.

Referring to fig. 1 and 2, one end of the suture 2 extends into the central bore of the anchor 1 and is flush with one end of the anchor 1, and the other end naturally extends. One end of the suture 2 does not need to penetrate out of the anchor bolt 1, so that the free end of the other end of the suture 2 is conveniently pulled into the central hole of the anchor bolt 1.

Referring to fig. 1 and 4, a section of the suture 2 in the anchor 1 is provided with a through hole 6 near both ends of the anchor 1, and one end of the traction wire 3 is threaded through one of the through holes 6 and out through the other through hole 6. During the operation, the free end of the suture 2 is threaded through one of the holes 6 and out the other hole 6 by the pull wire 3, thereby squeezing the anchor 1 from the U-shape to the spherical shape to form an anchoring point.

Referring to fig. 4, the suture 2 and the traction wire 3 are circular bands having a circular cross section, but may be flat bands having a flat cross section or a band structure having a flat band at both ends thereof. Is convenient for different operations to use and cooperate.

Referring to FIG. 1, the inserter 4 is a rod-like structure made of stainless steel or a nickel titanium memory alloy. Is made of S30400 materials conforming to ASTM.

Referring to fig. 1, the anchor 1 is a braided circular tube structure, a middle hole is arranged in the middle of the round tube structure, a suture 2 can be conveniently penetrated, and the anchor 1 and the suture 2 are braided by ultra-high molecular weight polyethylene fibers. The material is soft, the deformation is easy, the operation is convenient, the anchor 1 and the suture 2 are made of the same material, and the biocompatibility is good.

During operation, firstly, a drill bit is used for drilling a bone passage at an operation position, after the anchor 1 is inserted into the bone passage by the inserter 4, the free end of the suture 2 penetrates through soft tissues or ligaments under the matching of suture forceps, the end head of the free end is sleeved in the wire ring 5 of the traction wire 3, the non-wire ring end of the traction wire 3 is pulled, the free end of the suture 2 enters from one of the penetrating holes 6, is introduced into the middle hole of the suture 2, travels according to the original path of the traction wire 3 in the middle hole of the suture 2, and is led out from the other penetrating hole 6. Then the traction wire 3 is taken out, the free end thread head of the suture 2 is gradually tightened until the soft tissue or the ligament is firmly fixed on the surface of the bone tissue, the redundant suture 2 is cut off at the position which is parallel and level to the bone crossing, the anchor 1 can gradually extrude cancellous bone in the bone crossing in the tightening process of the suture 2, the shape is changed from a U shape to a spherical shape, and an anchoring point is formed to achieve the purpose of anchoring and fixing.

The full suture anchor 1 can achieve the fixation and repair of soft tissues or ligaments by self-tightening of the suture 2 without knotting, thereby avoiding or reducing the phenomenon that a connective bag is formed due to human immunity when the soft tissues are recovered at the later stage and reducing the rejection reaction of a human body. The operation time can be shortened and the operation efficiency can be improved because knots are not needed; after the anchor 1 forms the anchor point, the fixing strength is high.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides a exempt from to tie a knot full suture anchor, includes anchor (1), suture (2), pull wire (3) and inserter (4), its characterized in that: both the anchor (1) and the suture (2) are provided with a central hole, one end of the suture (2) extends into the central hole of the anchor (1), one end of the traction wire (3) is provided with a wire loop (5), one end of the traction wire (3) penetrates through the central hole of the suture (2), the wire loop (5) extends out of the suture (2), and when the inserter (4) is used, the inserter butts against the lower part of the anchor (1).

2. The knot-free full suture anchor of claim 1, wherein: the anchor nail (1) and the suture (2) are both woven round tube structures.

3. The knot-free full suture anchor of claim 1, wherein: the anchor nail (1) and the suture (2) are both formed by weaving ultrahigh molecular weight polyethylene fibers or polyester fiber raw materials.

4. The knot-free full suture anchor of claim 1, wherein: one end of the suture (2) extends into the central hole of the anchor (1) and is flush with one end of the anchor (1), and the other end naturally extends out.

5. The knot-free full suture anchor of claim 1, wherein: one section of the suture (2) in the middle hole of the anchor (1) is provided with a penetrating hole (6) close to the two ends of the anchor (1), and one end of the traction wire (3) penetrates through one of the penetrating holes (6) and penetrates out from the other penetrating hole (6).

6. The knot-free full suture anchor of claim 1, wherein: the suture (2) and the traction wire (3) are flat belts, circular belts or are provided with circular belt structures at two ends of the flat belts in the middle.

7. The knot-free full suture anchor of claim 1, wherein: the inserter (4) is a rod-shaped structure made of stainless steel or nickel titanium memory alloy.