CN112515723A - Full suture anchor fixing assembly - Google Patents
Full suture anchor fixing assembly Download PDFInfo
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- CN112515723A CN112515723A CN202011383780.4A CN202011383780A CN112515723A CN 112515723 A CN112515723 A CN 112515723A CN 202011383780 A CN202011383780 A CN 202011383780A CN 112515723 A CN112515723 A CN 112515723A
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- suture anchor
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- 230000008602 contraction Effects 0.000 claims abstract description 55
- 238000003780 insertion Methods 0.000 claims abstract description 51
- 230000037431 insertion Effects 0.000 claims abstract description 51
- 230000000670 limiting effect Effects 0.000 claims description 9
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 6
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims 2
- 238000002513 implantation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 210000000988 bone and bone Anatomy 0.000 description 39
- 239000000463 material Substances 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 201000004595 synovitis Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 208000003076 Osteolysis Diseases 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008380 degradant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 210000005067 joint tissue Anatomy 0.000 description 1
- 208000029791 lytic metastatic bone lesion Diseases 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B17/0642—Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
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- Health & Medical Sciences (AREA)
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention relates to the technical field of full suture anchors, in particular to a full suture anchor fixing component which comprises a sheath and an insertion rod for supporting the sheath, wherein the sheath comprises a first fixed end and a second fixed end, a folding piece is connected between the first fixed end and the second fixed end, and a contraction wire is arranged on the folding piece and used for contracting the folding piece; the insert rod penetrates through the first fixed end to be connected with the second fixed end in an abutting mode, and the first fixed end is connected with the insert rod in a sliding mode. The sheath is implanted through the inserting rod, so that the advantages of accurate implantation position and convenience in controlling the fixing position of the sheath are achieved, and meanwhile, the cooperation of the contraction wire and the folding piece enables the full suture anchor fixing system to have the advantages of small implantation volume and good fixing effect.
Description
Technical Field
The invention belongs to the technical field of full suture anchors, and particularly relates to a full suture anchor fixing component.
Background
In recent years, as the application of hard material anchor technology is becoming widespread, the hard material anchor is known to have many defects: 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. Although the problem that the titanium alloy anchor is easy to loosen and shift after being implanted is solved by the suture anchor made of the PEEK material, the problems that the anchor made of the absorbable material is cracked or degraded prematurely after being implanted into a person, the fixation firmness is reduced due to secondary shift, synovitis and bone dissolution are easily caused by degraded substances, the problem that the bone path of the implanted part of the anchor is large, the bone removal amount is large, and fracture or bone fracture is easy to occur are solved. In addition, once disengaged from the bone tract after implantation, hard anchors can cause damage to nearby joint tissue and bone surfaces.
In order to solve the problems of hard material anchors, full suture anchor products have emerged. The anchor portion of the product is made of a material that can be used to make sutures. Has the following advantages: the shape of the soft material anchor can be changed at will, the bone path required by fixation is small, and the bone removal amount is small; the bone tunnel is easy to remove and repair, the bone tunnel can be slightly enlarged during repair, and hard material anchors are used for replacement; even if the soft full suture anchor is separated from the bone canal after being implanted, the damage to the surrounding joints and the bone surface can not be caused.
Currently, the common products on the market are generally made of suture, the preloaded suture passes through the inside of an anchor, the anchor is arranged at the middle position of the head of an inserter, when in use, the inserter drives the anchor to the designated position of the bone channel, then the inserter is removed, and the loaded suture is pulled by hand to lead the anchor to retract and expand to press the bone channel wall, thereby completing the fixation. However, when such products are implanted, the anchor can freely change shape in the bone tunnel, and may not achieve the desired shape, and the friction force formed by the extrusion of the anchor and the bone tunnel is small, resulting in a reduction in the extraction force.
To the above-mentioned problem, through the retrieval, chinese utility model patent: a flat sheath suture anchor and implantation device (application No. 201920964425.2, application date is 2019-06-25), the application discloses a flat sheath suture anchor and implantation device, comprising a suture and a flat sheath, wherein the flat sheath is provided with one or more openings, the suture penetrates through the opening close to one end part of the flat sheath, then penetrates out of the adjacent opening, and repeatedly penetrates in and out until the suture penetrates in or out of the opening close to the other end part, the flat sheath with the threaded suture is implanted into a positioning hole on bone tissue, the flat sheath can be folded between the openings by tightening two ends of the suture, the volume of the folded flat sheath is enlarged, the size of the flat sheath is larger than that of the positioning hole, and the flat sheath is anchored in the positioning hole; the flat sheath is straight or U-shaped before being folded; at least one flat sheath is arranged. The utility model discloses a full suture anchor has that it is little to implant the bone way, and the bone removes the volume and is few, and it is easy to reprocess, advantages such as replaceability is strong to have good biocompatibility. The utility model discloses simple structure, the processing ease, it is fixed convenient, firm, anti extraction dynamic height.
However, the disadvantages of this application are: the setting position in the bone way is difficult implanted to the flat sheath of this application, simultaneously it will easily to tighten up the in-process that the suture is tightening up flat sheath area is from the setting position in the bone way, leads to the fixed effect of flat sheath is not good, and is big to the destruction of bone way, is unfavorable for later stage rehabilitation.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to solve the problem that how to implant a sheath into a set position of a bone canal in the prior art, and simultaneously, the volume of the implanted sheath is reduced and a higher fixing effect can be still achieved.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a full suture anchor fixing assembly comprises a sheath and an insertion rod for supporting the sheath, wherein the sheath comprises a first fixing end and a second fixing end, a folding piece is connected between the first fixing end and the second fixing end, and a contraction wire is arranged on the folding piece and used for contracting the folding piece; the inserted bar with the second stiff end is contradicted and is connected, first stiff end with inserted bar sliding connection.
Preferably, the second stiff end is provided with the spacing groove, the spacing groove is used for fixing the inserted bar with the relative position of second stiff end.
Preferably, the insertion rod is in the shape of a hollow rod, the hollow pipe of the insertion rod is used for accommodating the contraction wire, and the contraction wire can freely move in the hollow pipe of the insertion rod.
Preferably, one end of the contraction wire is fixed to the first fixed end, and the other end of the contraction wire sequentially penetrates through the folding piece and the second fixed end, and extends into the hollow pipe of the insertion rod from the end part of the insertion rod abutting against the second fixed end and extends out from the end of the insertion rod far away from the second fixed end; the contraction wire penetrates through the folding piece back and forth for a plurality of times.
Preferably, the insertion rod is provided in a solid rod shape.
Preferably, one end of the contraction wire is fixed to the first fixing end, the other end of the contraction wire crosses the folding member in the direction of the second fixing end and penetrates the second fixing end, and the contraction wire extends from the second fixing end and extends along the surface of the insertion rod to the end of the insertion rod far away from the second fixing end.
Preferably, the contraction wire extends through the second fixing end at a position off-center from the second fixing end and extends to an end of the insertion rod away from the second fixing end.
Preferably, the folding piece is provided with a plurality of shrinkage holes for penetrating through the shrinkage wire, the shrinkage holes are arranged in the folding piece along the length direction of the folding piece, and the distribution density of the shrinkage holes close to the first fixing end and the second fixing end is greater than the distribution density of the shrinkage holes close to the center of the folding piece.
Preferably, the sheath is woven from polyethylene terephthalate or ultra-high molecular weight polyethylene yarns, and the shrink thread is woven from ultra-high molecular weight polyethylene yarns.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention discloses a full suture anchor fixing component which comprises a sheath and an insertion rod for supporting the sheath, wherein the sheath comprises a first fixed end and a second fixed end, a folding piece is connected between the first fixed end and the second fixed end, and a contraction wire is arranged on the folding piece and used for contracting the folding piece; the insert rod penetrates through the first fixed end to be connected with the second fixed end in an abutting mode, and the first fixed end is connected with the insert rod in a sliding mode. The sheath is implanted through the inserting rod, so that the advantages of accurate implantation position and convenience in controlling the fixing position of the sheath are achieved, and meanwhile, the cooperation of the contraction wire and the folding piece enables the full suture anchor fixing system to have the advantages of small implantation volume and good fixing effect.
Drawings
FIG. 1 is a schematic view of the sheath of the present invention in its inserted configuration;
figure 2 is a schematic view of the folded member of the present invention when it is contracted;
fig. 3 is a schematic structural view of the sheath of the present invention after implantation.
The reference numerals in the schematic drawings illustrate:
100. a sheath; 110. a first fixed end; 120. a second fixed end; 130. a folding member; 140. a contraction wire; 121. a limiting groove; 131. a shrink hole; 200. the rod is inserted.
Detailed Description
In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1 to fig. 3, the present embodiment provides a technical solution: a full suture anchor fixing assembly includes a sheath 100 and an insertion rod 200 for supporting the sheath 100, the sheath 100 includes a first fixing end 110 and a second fixing end 120, a folding member 130 is connected between the first fixing end 110 and the second fixing end 120, a contraction wire 140 is provided on the folding member 130, and the contraction wire 140 is used for contracting the folding member 130; the insertion rod 200 is connected to the second fixing end 120 in an abutting manner, and the first fixing end 110 is connected to the insertion rod 200 in a sliding manner.
In use, the insertion rod 200 abuts the second fixed end 120 while sliding the first fixed end 110 away from the second fixed end 120, such that the folding member 130 is straightened, and then the sheath 100 is pushed into a set position within the bone canal by the insertion rod 200, typically pushing the sheath 100 into the cancellous bone layer within the bone canal. After the sheath 100 is pushed into the setting position, the insertion rod 200 is kept in a fixed state, the contraction wire 140 is pulled, the contraction wire 140 drives the folding member 130 to fold, in the folding process of the folding member 130, the second fixing end 120 is fixed under the interference of the insertion rod 200, the first fixing end 110 is driven by the folding member 130 to slide towards the second fixing end 120 until the folding member 130 is tightened, and meanwhile, the folding member 130 properly props open the inner wall of the bone canal. Then, the insertion rod 200 is slowly pulled out for a certain distance, the contraction wire 140 is properly tightened, the sheath 100 deflects in a certain angle in the bone canal, the sheath 100 is tightly clamped in the bone canal, the sheath 100 is not easy to deviate from the setting position under the limiting action of the insertion rod 200, and finally, the insertion rod 200 is integrally pulled out, and the implantation and fixation of the full suture anchor are completed.
In a preferable embodiment, the second fixing end 120 is provided with a limiting groove 121, the limiting groove 121 is used for fixing the relative position between the insertion rod 200 and the second fixing end 120, and the limiting groove 121 is matched with the end of the insertion rod 200, so that the insertion rod 200 is abutted against the second fixing end 120.
In a preferred embodiment, the insertion rod 200 is a hollow rod, and the insertion rod 200 is a circular tube or a square rod. The hollow tube of the insertion rod 200 is used to accommodate the contraction wire 140, and the contraction wire 140 can freely move in the hollow tube of the insertion rod 200.
In a preferred embodiment, there is at least one contraction wire 140, in the drawing, there are two contraction wires 140, one end of each contraction wire 140 is fixed to the first fixed end 110, and the other end of each contraction wire 140 sequentially penetrates through the folding member 130 and the second fixed end 120, and protrudes into the hollow tube of the insertion rod 200 from the end of the insertion rod 200 abutting against the second fixed end 120, and protrudes from the end of the insertion rod 200 away from the second fixed end 120; the contraction wire 140 passes through the folding member 130 several times. Therefore, when the free end of the contraction wire 140 is pulled, the contraction wire 140 on the folding member 130 is tightened, so that the folding member 130 is folded in a corrugated shape, which is beneficial to properly expand the inner wall of the bone canal, and simultaneously, the friction force between the folding member 130 and the inner wall of the bone canal is enhanced, so that the fixing effect of the sheath 100 is better.
In a preferred embodiment, the contraction wire 140 is extended through the second fixing end 120 at a position offset from the center and extended to an end of the insertion rod 200 away from the second fixing end 120. When the contraction wire 140 is pulled in the process of slowly pulling out the insertion rod 200, the contraction wire 140 applies a certain deflection force to the second fixed end 120, so that the sheath 100 is deflected in the bone tract at a certain angle as a whole, the projection area of the sheath 100 on the bone tract cross section is increased, the sheath 100 is not easy to pull out from the bone tract, the stabilizing effect of the sheath 100 is improved, and meanwhile, the contraction wire 140 generates a certain angle between the pulling direction of the sheath 100 and the length direction of the bone tract, so that the component force of the pulling force of the contraction wire 140 on the sheath 100 in the length direction of the bone tract is reduced, the sheath 100 can fasten a larger pulling force from the contraction wire 140, and the fastening effect of the sheath 100 is improved.
In a preferred embodiment, the folding member 130 is provided with a plurality of shrink holes 131 for penetrating the shrink thread 140, the shrink holes 131 are arranged in the folding member 130 along the length direction of the folding member 130, and the distribution density of the shrink holes 131 near the first fixed end 110 and the second fixed end 120 is greater than the distribution density of the shrink holes 131 near the center of the folding member 130. When the folding member 130 is tightened by the contraction wire 140, the folding area of the folding member 130 near the center is larger than the folding area of the folding member 130 near the two ends, which is beneficial to reducing the expanding effect of the folding member 130 on the bone canal and reducing the damage to the bone canal, and meanwhile, the folding density of the folding member 130 near the two ends is larger, so that the strength is higher, the two ends of the folding member 130 can be better fixed with the bone canal after deflection, and the fixing effect of the whole sheath 100 is provided.
In a preferred embodiment, the sheath 100 is woven from polyethylene terephthalate or ultra-high molecular weight polyethylene yarn, and the shrink thread 140 is woven from ultra-high molecular weight polyethylene yarn.
Example 2
The basic structure of this embodiment is the same as that of embodiment 1, except that: the insertion rod 200 is in the shape of a solid rod, and the insertion rod 200 is in the shape of a round rod or a flat rod.
In a preferred embodiment, one end of the contraction wire 140 is fixed to the first fixing end 110, the other end of the contraction wire 140 crosses the folder 130 toward the second fixing end 120 and penetrates the second fixing end 120, and the contraction wire 140 protrudes from the second fixing end 120 and extends along the surface of the insertion rod 200 to the end of the insertion rod 200 away from the second fixing end 120.
The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. An all suture anchor retaining assembly characterized by: the sheath (100) comprises a sheath (100) and an insertion rod (200) used for supporting the sheath (100), the sheath (100) comprises a first fixed end (110) and a second fixed end (120), a folding piece (130) is connected between the first fixed end (110) and the second fixed end (120), a contraction wire (140) is arranged on the folding piece (130), and the contraction wire (140) is used for contracting the folding piece (130); the inserted bar (200) is connected with the second fixed end (120) in an abutting mode, and the first fixed end (110) is connected with the inserted bar (200) in a sliding mode.
2. The full suture anchor fixation assembly of claim 1, wherein: the second fixed end (120) is provided with a limiting groove (121), and the limiting groove (121) is used for fixing the relative position of the insertion rod (200) and the second fixed end (120).
3. The full suture anchor fixation assembly of claim 1, wherein: the insertion rod (200) is in a hollow rod-shaped arrangement, a hollow pipeline of the insertion rod (200) is used for accommodating the contraction wire (140), and the contraction wire (140) can freely move in the hollow pipeline of the insertion rod (200).
4. A full suture anchor fixation assembly according to claim 3 wherein: one end of the contraction wire (140) is fixed to the first fixed end (110), and the other end of the contraction wire (140) sequentially penetrates through the folding piece (130) and the second fixed end (120), and extends into the hollow pipeline of the insertion rod (200) from the end part of the insertion rod (200) abutting against the second fixed end (120), and extends out from the end of the insertion rod (200) far away from the second fixed end (120); the shrink thread (140) is passed back and forth over the folding member (130) several times.
5. The full suture anchor fixation assembly of claim 1, wherein: the insertion rod (200) is arranged in a solid rod shape.
6. The full suture anchor fixation assembly of claim 5, wherein: one end of the contraction wire (140) is fixed on the first fixed end (110), the other end of the contraction wire (140) penetrates through the folding piece (130) in a direction towards the second fixed end (120), and the contraction wire (140) penetrates through the second fixed end (120), extends out of the second fixed end (120), and extends along the surface of the insertion rod (200) to the end of the insertion rod (200) far away from the second fixed end (120).
7. The full suture anchor fixation assembly of any one of claims 4 or 6, wherein: the contraction wire (140) is extended through the second fixing end (120) at a position deviated from the center and extended to the end of the insertion rod (200) far away from the second fixing end (120).
8. The all-suture anchor fixation assembly of any one of claims 1 to 6, wherein: the folding piece (130) is provided with a plurality of contraction holes (131) used for penetrating through the contraction wire (140), the contraction holes (131) are arranged on the folding piece (130) along the length direction of the folding piece (130), and the distribution density of the contraction holes (131) close to the first fixed end (110) and the second fixed end (120) is greater than the distribution density of the contraction holes (131) close to the center of the folding piece (130).
9. The full suture anchor fixation assembly of claim 1, wherein: the sheath (100) is formed by weaving polyethylene terephthalate or ultra-high molecular weight polyethylene yarns, and the contraction wire (140) is formed by weaving ultra-high molecular weight polyethylene yarns.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383780.4A CN112515723B (en) | 2020-12-01 | 2020-12-01 | Full suture anchor fixing assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383780.4A CN112515723B (en) | 2020-12-01 | 2020-12-01 | Full suture anchor fixing assembly |
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| CN112515723A true CN112515723A (en) | 2021-03-19 |
| CN112515723B CN112515723B (en) | 2024-08-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116549036A (en) * | 2023-07-10 | 2023-08-08 | 杭州锐健马斯汀医疗器材有限公司 | Osseous suture full suture anchor and method |
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|---|---|
| CN112515723B (en) | 2024-08-02 |
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