CN214259392U - Double-hollow-tube woven type full suture anchor - Google Patents

Abstract

The utility model provides a two hollow tube woven type full suture anchor belongs to full suture anchor technical field, including spool and stylolite, the spool is the hollow structure of weaving, and two spool parallel arrangement and cross and link to each other and form the crosspoint, the stylolite penetrates from the one end of first the spool, passes through the crosspoint and then wears out from the other end of first the spool, subsequently the stylolite penetrates from the second one the spool is close to the one end of first the spool end of wearing out, passes through the crosspoint and then wears out from the other end of second the spool; both ends of the conduit are subjected to a hardening treatment. The utility model discloses the implantation mode is simple, and required bone way diameter is less, and the autologous bone volume that needs to remove is few, and is little to the human harm, and overall structure is brief, convenient operation, and it is fixed firm to implant the back, forms folding group homogeneous when the stylolite tightens up, has effectively guaranteed that the product resistance to plucking out power homogeneous stability, also does benefit to operations such as postoperative reprocess, repair, replacement.

Description

Double-hollow-tube woven type full suture anchor

Technical Field

The utility model belongs to the technical field of the full suture anchor nail, especially, relate to a type full suture anchor nail is woven to two hollow tubes.

Background

Soft tissue fixation is typically accomplished during repair of injuries at the soft tissue-bone tissue junction by means of anchors, which are essentially anchors implanted in or against the body matrix to provide a secure attachment location for the suture. For example, the suture anchoring technology using titanium alloy, PEEK (polyether ether ketone) and polylactic acid materials as materials is widely used in surgeries such as rotator cuff injury, labral injury, proximal femur tendon injury, anterior and posterior labral injury on shoulder joint, ulnar collateral ligament injury reconstruction, scapular ligament repair, triangular fibrocartilage repair and the like. The anchor is of a hard structure, is generally formed by injection molding or machining, has a physical shape similar to that of a screw, and is screwed into a human body matrix, and then a preloaded suture on the anchor fixes soft tissues on the surface of bone tissues by binding and tightening the suture, thereby completing the repair of damaged tissues.

The hard structure anchor has some defects and defects in use, the hard structure anchor is larger in implanted bone canal, large in bone removal amount, difficult to repair and repair after operation and the like, and in addition, the metal anchor is easy to generate inflammation after being implanted to cause a bone dissolving phenomenon, so that an anchor screwing point is loosened and falls off, and the fixation fails. The degradation cycle of the implanted absorbable anchoring nail is too short due to uncontrollable factors such as human body constitution difference, and the like, so that the absorbable anchoring nail cannot provide enough fixation firmness in a fixed healing required cycle, and the secondary problems of synovitis, osteolysis and the like and operation failure are caused.

In recent years, soft suture anchors have been developed from soft materials such as sutures by weaving, which are retained in preformed bone holes by being deformable to increase their diameter to a size larger than the diameter of the bone hole so as to reside in cancellous bone and under cortical bone, and which are a new type of full suture anchoring technique with a series of advantages. However, the prior art still has certain defects and shortcomings, or the size of the bone canal with double diameter is needed when the bone canal is accessed once, the time is doubled, the efficiency of accessing the bone canal is greatly influenced, and the operation effect is influenced; or the suture line and the thread pipe can not be guaranteed to form a closed structure which is completely symmetrical left and right when entering the bone channel, so that the suture line can not be guaranteed to be uniformly folded when being tightened, and the uniform and stable pulling resistance of the product can not be guaranteed.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a double hollow tube woven full suture anchor capable of solving the above problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this: a double hollow tube woven full suture anchor comprising tubes and a suture, wherein the tubes are of a hollow woven structure, the two tubes are arranged in parallel and are connected in a crossing manner to form a crossing point, the suture penetrates through one end of a first tube, passes through the crossing point and then penetrates out from the other end of the first tube, then the suture penetrates through one end of a second tube close to the penetrating end of the first tube, passes through the crossing point and then penetrates out from the other end of the second tube; both ends of the conduit are subjected to a hardening treatment.

Further, the thread pipe is woven by a weaving machine or a weft knitting machine, the range of the thread diameter is 1mm-30mm, the weaving density is 10-100PPI, the temperature of the hardening treatment is 50-300 ℃, and the length range of the hollow pipe obtained by hardening is as follows: 10mm-50 mm.

Furthermore, the suture line is a suture line or a thread belt, and is made of medical polymer materials, including absorbable materials such as polyglycolic acid PGA, polylactic acid PLA, polydioxanone PDO or polyglycolic acid PGLA, and non-absorbable materials such as polypropylene, polyethylene, nylon 6, nylon 66, polyester or polytetrafluoroethylene PTFE.

Furthermore, the material of spool is non-absorbable material polypropylene, polyethylene, nylon 6, nylon 66, polyester or polytetrafluoroethylene PTFE.

Further, the intersection points are located at 1/3 division points and 2/3 division points of the conduit, and trisection of the conduit can be achieved through the intersection points; the intersection point may also be located at a quarter or a quarter split point of the conduit, thereby achieving quarter or quarter splitting of the conduit.

Further, the spool is threaded, and then the spool is bilaterally symmetrical.

Further, the suture thread passes through two of the line pipes in sequence, and simultaneously the suture thread avoids intertwining when passing through the intersection point.

Compared with the prior art, the double-hollow-tube woven type full suture anchor has the following advantages: the utility model discloses used material all is for weaving macromolecular material, belongs to one kind of full suture anchor nail, adopts the top to go into the ware and directly pushes into the bone way and not screw-in, and the implantation mode is simple, and required bone way diameter is less, and the autologous bone volume that needs to remove is few, and is little to the human harm, and overall structure brief, convenient operation, it is fixed firm after the implantation, form folding group homogeneous when the stylolite tightens up to it is stable to have effectively guaranteed that the product resistance to plucking out is exerted oneself the homogeneous, also does benefit to the operation such as postoperative reprocesses, repair, replacement.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

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

fig. 2 is a schematic structural view of the suture tightening device according to the present invention.

Description of reference numerals:

1. a conduit; 2. a suture; 3. an intersection point; 4. and (7) positioning the holes.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 and 2, the utility model relates to a two hollow tube woven type full suture anchor nail, including spool 1 and stylolite 2, the structure is woven for the cavity to spool 1, two spool 1 parallel arrangement and cross connection form intersect 3, can guarantee stylolite 2 forms the closed structure with spool 1 and controls complete symmetry when getting into the bone way, and then guarantees stylolite 2 forms folding group homogeneous when tightening up to it is stable effectively to have guaranteed that the product resists to pull out the homogeneous of exerting oneself. The suture 2 is threaded from one end of a first of the conduits 1, passes through the intersection point 3 and then passes out from the other end of the first of the conduits 1, and then the suture 2 is threaded from one end of a second of the conduits 1 near the first end where the conduits 1 pass out, passes through the intersection point 3 and then passes out from the other end of the second of the conduits 1; the two ends of the thread pipe 1 are hardened, so that the phenomenon that the thread line 2 has broken filaments at the damaged edge in the threading process can be effectively avoided.

The line pipe 1 is woven by a weaving machine or a weft knitting machine, the range of the line diameter is 1mm-30mm, the weaving density is 10-100PPI, the temperature of hardening treatment is 50-300 ℃, the length range of a hollow pipe obtained by hardening is as follows: 10mm-50 mm; preferably, the braiding machine braids a hollow tubular pipe 1 of ultra-high molecular weight polyethylene material with a diameter of 10mm and a PPI of 50, and the hardening treatment of the two ends of the tubular pipe 1 is as follows: both ends were hardened at 150 ℃ to give a shear length of 20 mm.

The suture 2 is a suture or a tape, and is made of medical polymer materials, including absorbable materials such as polyglycolic acid PGA, polylactic acid PLA, polydioxanone PDO or polyglycolic acid PGLA, non-absorbable materials such as polypropylene, polyethylene (including ultra-high molecular weight polyethylene), nylon 6, nylon 66, polyester or polytetrafluoroethylene PTFE.

The line pipe 1 is made of polypropylene, polyethylene (including ultra-high molecular weight polyethylene), nylon 6, nylon 66, polyester or polytetrafluoroethylene PTFE and other non-absorbable materials.

The intersection 3 is located at the 1/3 division point and the 2/3 division point of the conduit 1, and the conduit 1 can be trisected through the intersection 3; the halving structure can ensure that the spool 1 forms a plurality of weaving groups with the same size at the intersection point 3 when the suture 2 is stretched subsequently, and the diameter of the weaving groups is far larger than that of the positioning hole 4, so that the fixation of the full suture anchor at the bone tissue repair part is realized. The intersection 3 may also be located at a quarter or a quarter split point of the conduit 1, thereby achieving a quarter or a quarter of the conduit 1.

Spool 1 has worn behind stylolite 2, two spool 1 bilateral symmetry can ensure that stylolite 2 forms folding group homogeneous when tightening up to effectively guaranteed that the product resistance to plucking out is power homogeneous stable.

Suture 2 passes through two in proper order spool 1, simultaneously suture 2 passes through avoid intertwining during crossing 3, thereby has effectively avoided suture 2 alternately ties.

In the actual working process, firstly, the spool 1 with the suture 2 is implanted into the positioning hole 4 on the bone tissue to be repaired by the ejector, the suture 2 is simultaneously tightened at the two ends of the spool 1, the hollow braided spool 1 is deformed under the driving of the stretching force, the braided structure is compacted into a ball, three ball-shaped braided fabrics with the same size and diameter range far larger than the diameter range of the positioning hole 4 are respectively formed at the two cross points 3 and the positioning hole 4, so that the fixation of the full suture anchor on the bone tissue repairing part is realized, and the ejector is the existing foundation.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a two hollow tube woven type full suture anchor which characterized in that: the novel hollow braided wire tube comprises wire tubes (1) and a suture (2), wherein the wire tubes (1) are of a hollow braided structure, two wire tubes (1) are arranged in parallel and are connected in a crossed mode to form a cross point (3), the suture (2) penetrates through one end of a first wire tube (1), passes through the cross point (3) and then penetrates out of the other end of the first wire tube (1), then the suture (2) penetrates through one end, close to the penetrating end of the first wire tube (1), of a second wire tube (1), passes through the cross point (3) and then penetrates out of the other end of the second wire tube (1); both ends of the line pipe (1) are hardened.

2. The double hollow tube woven full suture anchor of claim 1, wherein: the line pipe (1) is woven by a weaving machine or a weft knitting machine, the range of the line diameter is 1mm-30mm, the weaving density is 10-100PPI, the temperature of hardening treatment is 50-300 ℃, the length range of a hollow pipe obtained by hardening is as follows: 10mm-50 mm.

3. The double hollow tube woven full suture anchor of claim 1, wherein: the suture (2) is a suture or a tape, is made of medical high polymer materials, and comprises absorbable materials such as polyglycolic acid PGA, polylactic acid PLA, polydioxanone PDO or polyglycolic acid PGLA, and non-absorbable materials such as polypropylene, polyethylene, nylon 6, nylon 66, polyester or polytetrafluoroethylene PTFE.

4. The double hollow tube woven full suture anchor of claim 2, wherein: the material of spool (1) is non-absorbable material polypropylene, polyethylene, nylon 6, nylon 66, polyester or polytetrafluoroethylene PTFE.

5. The double hollow tube woven full suture anchor of claim 1, wherein: the intersection (3) is positioned at the 1/3 dividing point and the 2/3 dividing point of the conduit (1), and the conduit (1) can be trisected through the intersection (3); the intersection point (3) can also be located at a quarter or a quarter dividing point of the line pipe (1), so that the line pipe (1) is divided into quarters or fifths.

6. The double hollow tube woven full suture anchor of claim 1, wherein: after the suture line (2) is threaded through the line pipe (1), the line pipe (1) is symmetrical left and right.

7. The double hollow tube woven full suture anchor of claim 1, wherein: the suture thread (2) passes through the two line tubes (1) in sequence, and meanwhile the suture thread (2) is prevented from being wound when passing through the intersection point (3).

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