CN107569264B - Knotless suture anchor - Google Patents
Knotless suture anchor Download PDFInfo
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- CN107569264B CN107569264B CN201710969961.7A CN201710969961A CN107569264B CN 107569264 B CN107569264 B CN 107569264B CN 201710969961 A CN201710969961 A CN 201710969961A CN 107569264 B CN107569264 B CN 107569264B
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- 239000000463 material Substances 0.000 claims description 11
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 9
- 229920002530 polyetherether ketone Polymers 0.000 claims description 9
- 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 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 abstract description 22
- 238000000034 method Methods 0.000 description 8
- 210000004872 soft tissue Anatomy 0.000 description 8
- 230000006378 damage Effects 0.000 description 6
- 210000002435 tendon Anatomy 0.000 description 6
- 210000003041 ligament Anatomy 0.000 description 5
- 241001653121 Glenoides Species 0.000 description 3
- 208000024288 Rotator Cuff injury Diseases 0.000 description 3
- 206010039227 Rotator cuff syndrome Diseases 0.000 description 3
- 210000004439 collateral ligament Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002650 habitual effect Effects 0.000 description 3
- 210000000629 knee joint Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000000399 orthopedic effect Effects 0.000 description 3
- 239000012815 thermoplastic material Substances 0.000 description 3
- 206010067482 No adverse event Diseases 0.000 description 2
- 210000000845 cartilage Anatomy 0.000 description 2
- 230000001054 cortical effect Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a belted suture anchor, in particular a knotless suture anchor. The novel ground anchor comprises an anchor body (1), wherein the anchor body (1) comprises a plurality of groups of component parts (2) which are overlapped in sequence by the same axis, each group of component parts (2) comprises a first component (3) and a second component (4) which are overlapped by the same axis, the first component (3) is arranged on the upper part of the second component (4), and the first component (3) and the second component (4) are in a round table shape. The anchor body (1) further comprises a conical part (5), and the conical part (5) is arranged at the bottom of the lowest-layer component part (2). Wherein the first member (3), the second member (4) and the tapered portion (5) each gradually decrease in area in a direction from an upper portion of the anchor body (1) to a lower portion of the anchor body (1). The anchor has a simple structure, and is free from knotting on the surface of a bone, so that the anchor is fixed more firmly and is repaired more quickly after an operation.
Description
Technical Field
The invention relates to a belted suture anchor, in particular to a knotless suture anchor.
Background
The anchor is used for reconnecting soft tissues and bones clinically through a suture, and is embedded into bones to fix torn tendinous tissues so as to achieve the purpose of healing tendinous bones. The prior art anchors are of knotted design, i.e. the suture at the end of the anchor is knotted and fixed externally. Publication number CN104027140a discloses a patent application named "three-hole suture anchor", which fixes the anchor body on the bone during operation, each threading hole penetrates the suture, two ends of the suture are respectively embedded into the wire grooves communicated with the inlet of the threading hole and the outlet of the threading hole, two ends of the suture are passed through the tendon stop points of extensor, and knotting is performed at the upper ends of the tendon stop points of extensor, so that the tendon stop points of extensor are fixed on the bone surface. However, since the suture knot is exposed on the bone surface, friction is easily generated, the knot is broken, the anchor is not firmly fixed, discomfort is easily caused to a patient, inflammation is accompanied, and healing is slow.
Disclosure of Invention
The invention aims to provide a knotless suture anchor which has a simple structure, does not need to knot on the surface of a bone, simplifies the operation process, is firmer in fixation and faster in repair after operation, has better operability and better effect after operation and has no adverse reaction.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a knotless suture anchor includes the anchor body, the anchor body includes the component portion that a plurality of groups coaxial heart superposeed in order, every component portion of group all includes two coaxial heart superimposed first component and second component, the upper portion of second component is arranged in to first component, first component and second component all are "round platform" form. The anchor body further includes a tapered portion provided at a bottom of the lowermost member portion. Wherein the first member, the second member and the tapered portion each have an area gradually decreasing in a direction from an upper portion of the anchor body to a lower portion of the anchor body. The structural design of the component part and the conical part reduces the resistance in the operation process, can ensure that the anchor is smoothly inserted into the surface of the cortical bone, has excellent internal fixation strength and stability, and simultaneously prevents the phenomenon that the traditional anchor with the protruding hole is pulled back. The anchor presses the medical suture line in the bone in the operation, the medical suture line can not move, knot tying is not needed, the operation difficulty is reduced, the operation time is shortened, the anchor is more effective and operable for fixing soft tissues, and the repairing process is simplified. The medical suture line is fixed by shuttling and utilizing a mechanical locking principle without knots, and an operator can control the tension by adjusting the tightness of the medical suture line. The knotless design avoids impacting the cartilage surface, has no risk of loosening, can be fixed with low notch, and is convenient for better repair.
Further, the upper bottom surfaces of the first member and the second member are polygonal, and the lower bottom surfaces of the first member and the second member are circular. The upper bottom surface of the first member in the shape of a circular truncated cone is originally circular, and the upper bottom surface of the first member is vertically cut to be polygonal. The upper bottom surface of the second member is originally circular, and the upper bottom surface of the second member is vertically cut, so that the second member is polygonal.
The upper bottom surfaces of the first member and the second member have the same shape and the same number of sides.
The second member is axially rotated by 20 DEG to 50 DEG based on the first member. That is, the upper bottom surfaces of the first member and the second member are polygonal with the same number of sides, but the second member is axially rotated by a certain angle based on the first member so that the projections of the first member and the second member do not overlap when viewed from the top end of the anchor body.
Further, the upper bottom surfaces of the first member and the second member are quadrangular, hexagonal or octagonal.
Advantageously, the upper bottom surface of the aforementioned conical portion is also cut into a polygonal shape.
The component part and the conical part are of an integrated structure, and the inside of the anchor body is penetrated and provided with the central hole, so that the anchor body is hollow, the anchor material consumption is reduced, and the liquid in the bone is quickly infiltrated after the anchor is implanted, thereby facilitating bone growth.
The central hole is a round hole or an inner hexagon hole or a quincuncial hole, is suitable for tools with different specifications to install the anchor, and has better operability.
The edges of the component part and the conical part are rounded, so that the cutting of the ligament and the like by the edge part is reduced, and the damage to the human body in the operation process is reduced.
The anchor body is made of PEEK material, namely polyether-ether-ketone material, and is a thermoplastic material which is non-absorbable and has excellent biocompatibility and biostability. The length of the anchor body is 10 mm-30 mm, and different specifications can be selected according to the operation position and the damage condition. The knotless suture anchor is widely applied, and can be used for orthopedic operations such as rotator cuff injury repair, shoulder glenoid labial repair, proximal biceps brachii long head tendon fixation, knee joint collateral ligament repair or reconstruction, patellar habitual dislocation inner support belt tightening or reconstruction, talofibular ligament repair or reconstruction and the like.
Compared with the prior art, the invention has the following advantages:
(1) The anchor with the wire is an anchor for fixing soft tissues to bones, does not need to be screwed in or knotted on the surfaces of the bones, is simple to operate, and enables the anchor to be fixed more firmly and repaired more quickly after an operation, has high operation efficiency, better effect after the operation, no adverse reaction and small damage to bones;
(2) The anchor body is hollow, so that the liquid in the bone can quickly permeate after the anchor is implanted, the liquid in the bone can circulate after the operation, free bone fragments can be collected, soft tissues can be conveniently and well repaired and fused with the bone, the material consumption of the anchor body can be reduced, and the cost is reduced;
(3) The unique nail body design has larger fixing strength than the traditional anchor, so that the anchor body can be better fixed in the bone, and the anti-rotation and anti-pull-out effects are achieved;
(4) Each component part of the anchor is gradually reduced along the direction area from the upper part to the lower part of the anchor body, so that the resistance in the operation process is reduced, and the operation efficiency is improved;
(5) The anchor body is made of PEEK material, namely polyether-ether-ketone material, has good biocompatibility and enough initial fixing strength, and is non-absorbable but can not cause human body rejection.
Drawings
FIG. 1 is a perspective view of one embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a perspective view of another embodiment of the present invention;
Fig. 4 is a front view of fig. 3;
FIG. 5 is an upper top view of FIG. 4;
FIG. 6 is a front view of yet another embodiment of the present invention;
FIG. 7 is an upper top view of FIG. 6;
FIG. 8 is another upper top view of FIG. 6;
fig. 9 is a further upper plan view of fig. 6.
Meaning of reference numerals: 1-anchor body, 2-member portion, 3-first member, 4-second member, 5-taper portion, 6-central bore.
The invention is further described below with reference to the drawings and the detailed description.
Detailed Description
Example 1 of the present invention: as shown in fig. 1, 6, 7, 8 and 9, the knotless suture anchor comprises an anchor body 1, the anchor body 1 comprises five groups of coaxially overlapped component parts 2, each group of component parts 2 comprises a first component 3 and a second component 4 which are coaxially overlapped, the first component 3 is arranged on the upper part of the second component 4, and the first component 3 and the second component 4 are in a shape of a round table. The anchor body 1 further comprises a tapered portion 5, the tapered portion 5 being provided at the bottom of the lowermost component portion 2. Wherein the first member 3, the second member 4 and the tapered portion 5 each gradually decrease in area in a direction from the upper portion of the anchor body 1 to the lower portion of the anchor body 1. The upper bottom surface of the first member 3 in the shape of a truncated cone is originally circular, and the upper bottom surface of the first member 3 is vertically cut so as to be polygonal. The upper bottom surface of the second member 4 in the shape of a truncated cone is originally circular, and the upper bottom surface of the second member 4 is now cut vertically and also made into a polygon. The lower bottom surfaces of the first member 3 and the second member 4 are circular.
Wherein, the upper bottom surfaces of the first member 3 and the second member 4 have the same shape and the same polygon shape with the same number of sides. Specifically, the two can be quadrilateral, hexagonal or octagonal. More specifically, the upper bottom surfaces of the first member 3 and the second member 4 are cut from the original circular shape into regular hexagons inscribed in the original circular shape, and the side length of the regular hexagons is equal to the radius of the original circular shape. Further, the second member 4 is axially rotated by 20 ° to 50 ° based on the first member 3. More specifically, the second member 4 is axially rotated by 30 ° on the basis of the first member 3. I.e. the center line of the hexagonal inner angle of the upper bottom surface of the second member 4 coincides with the vertical line in the middle of the hexagonal side length of the upper bottom surface of the first member 3. The upper bottom surface of the conical portion 5 is also cut into a polygonal shape, in particular, a quadrilateral shape, or a hexagonal shape or an octagonal shape. The component part 2 and the conical part 5 are of an integrated structure, and a central hole 6 is formed in the anchor body 1 in a penetrating manner. Specifically, the central hole 6 can be a circular hole, an inner hexagonal hole or a quincuncial hole, is suitable for tools with different specifications to install the anchor, and has better operability. The anchor body 1 is made of PEEK material, namely polyether-ether-ketone material, and is a thermoplastic material which is non-absorbable and has excellent biocompatibility and biostability. The length of the anchor body 1 is 10-30 mm. Different specifications can be selected according to the operation position and the damage condition, and specifically, the length of the anchor body 1 is 25 mm. The knotless suture anchor is widely applied, and can be used for orthopedic operations such as rotator cuff injury repair, shoulder glenoid labial repair, proximal biceps brachii long head tendon fixation, knee joint collateral ligament repair or reconstruction, patellar habitual dislocation inner support belt tightening or reconstruction, talofibular ligament repair or reconstruction and the like.
Example 2: as shown in fig. 1,3, 4 and 5, a knotless suture anchor comprises an anchor body 1, wherein the anchor body 1 comprises a plurality of groups of coaxially and sequentially overlapped component parts 2, each group of component parts 2 comprises a first component 3 and a second component 4 which are coaxially overlapped, the first component 3 is arranged on the upper part of the second component 4, and the first component 3 and the second component 4 are in a shape of a circular truncated cone. The anchor body 1 further comprises a tapered portion 5, the tapered portion 5 being provided at the bottom of the lowermost component portion 2. Wherein the first member 3, the second member 4 and the tapered portion 5 each gradually decrease in area in a direction from the upper portion of the anchor body 1 to the lower portion of the anchor body 1. The upper bottom surface of the first member 3 in the shape of a truncated cone is originally circular, and the upper bottom surface of the first member 3 is vertically cut so as to be polygonal. The upper bottom surface of the second member 4 in the shape of a truncated cone is originally circular, and the upper bottom surface of the second member 4 is now cut vertically and also made into a polygon. The lower bottom surfaces of the first member 3 and the second member 4 are circular.
Wherein, the upper bottom surfaces of the first member 3 and the second member 4 have the same shape and the same polygon shape with the same number of sides. Specifically, the two can be quadrilateral, hexagonal or octagonal. More specifically, the upper bottom surfaces of the first member 3 and the second member 4 are cut from the original circular shape into regular octagons inscribed in the original circular shape, and the length of the longest diagonal of the regular octagons is equal to the diameter of the original circular shape. Further, the second member 4 is axially rotated by 20 ° to 50 ° based on the first member 3. More specifically, the second member 4 is axially rotated by 22.5 ° on the basis of the first member 3. I.e. the centre line of the octagonal interior angle of the upper bottom surface of the second component 4 coincides with the middle vertical line of the octagonal side length of the upper bottom surface of the first component 3. The upper bottom surface of the conical portion 5 is also cut into a polygonal shape, in particular, a quadrilateral shape, or a hexagonal shape or an octagonal shape. The member portion 2 and the tapered portion 5 are integrally formed, and a central hole 6 is formed in the anchor body 1 in a penetrating manner, and specifically, the central hole 6 may be a circular hole.
Example 3: as shown in fig. 1 and 2, a knotless suture anchor comprises an anchor body 1, wherein the anchor body 1 comprises a plurality of groups of coaxially overlapped component parts 2 in sequence, each group of component parts 2 comprises a first component 3 and a second component 4 which are coaxially overlapped, the first component 3 is arranged on the upper part of the second component 4, and the first component 3 and the second component 4 are in a shape of a round table. The anchor body 1 further comprises a tapered portion 5, the tapered portion 5 being provided at the bottom of the lowermost component portion 2. Wherein the first member 3, the second member 4 and the tapered portion 5 each gradually decrease in area in a direction from the upper portion of the anchor body 1 to the lower portion of the anchor body 1. The structural design of the component part 2 and the conical part 5 reduces the resistance in the operation process, can ensure that the anchor is smoothly inserted into the surface of the cortical bone, has excellent internal fixation strength and stability, and simultaneously prevents the phenomenon that the traditional anchor with the protruding hole is pulled back. The anchor is more effective and operable for fixing soft tissues, and the repairing process is simplified. The medical suture line is fixed by shuttling and utilizing a mechanical locking principle without knots, and an operator can control the tension by adjusting the tightness of the medical suture line. The knotless design avoids impacting the cartilage surface, has no risk of loosening, can be fixed with low notch, and is convenient for better repair. The edges of the component part 2 and the conical part 5 are rounded, so that the cutting of the ligament and the like by the edge part is reduced, and the damage to the human body in the operation process is reduced. Specifically, the anchor body 1 is made of PEEK material, namely polyether-ether-ketone material, and is a thermoplastic material which is non-absorbable and has excellent biocompatibility and biostability. The length of the anchor body 1 is 10-30 mm. Different specifications can be selected according to the operation position and the damage condition, and specifically, the length of the anchor body 1 is 20 mm. The knotless suture anchor is widely applied, and can be used for orthopedic operations such as rotator cuff injury repair, shoulder glenoid labial repair, proximal biceps brachii long head tendon fixation, knee joint collateral ligament repair or reconstruction, patellar habitual dislocation inner support belt tightening or reconstruction, talofibular ligament repair or reconstruction and the like.
The working principle of the invention is as follows: one end of the medical suture line passes through the soft tissue, the other end passes through the front end guide nail body, the anchor nail body 1 is driven into the bone tunnel by the implantation tool, and the medical suture line is extruded by the anchor nail body 1 in interference fit with the soft tissue and the bone tunnel along with the driving of the anchor nail body 1, so that knotless fixation is formed, and the soft tissue is fixed.
Claims (3)
1. The knotless suture anchor is characterized by comprising an anchor body (1), wherein the anchor body (1) comprises a plurality of groups of coaxially and sequentially overlapped component parts (2), each group of component parts (2) comprises a first component (3) and a second component (4) which are coaxially overlapped, the first component (3) is arranged on the upper part of the second component (4), and the first component (3) and the second component (4) are in a shape of a circular truncated cone; the anchor body (1) further comprises a conical part (5), and the conical part (5) is arranged at the bottom of the lowest component part (2); wherein the first member (3), the second member (4) and the tapered portion (5) each gradually decrease in area in a direction from an upper portion of the anchor body (1) to a lower portion of the anchor body (1); the round upper bottom surfaces of the first component (3) and the second component (4) are vertically cut into polygons, and the lower bottom surfaces of the first component (3) and the second component (4) are round; the upper bottom surfaces of the first component (3) and the second component (4) are the same in shape; the second component (4) axially rotates by 20-50 degrees based on the first component (3); the member part (2) and the conical part (5) are of an integrated structure, and a central hole (6) is formed in the anchor body (1) in a penetrating manner; the central hole (6) is a round hole or an inner hexagonal hole or a quincuncial hole, and is suitable for tools with different specifications to install the anchor; the round upper bottom surface of the conical part (5) is also vertically cut into a polygon; the edges of the component part (2) and the conical part (5) are rounded.
2. Knotless suture anchor according to claim 1, characterized in that the circular upper bottom surfaces of the first and second members (3, 4) are vertically cut into a quadrilateral or hexagonal or octagonal shape.
3. Knotless suture anchor according to claim 1, characterized in that the anchor body (1) is of PEEK material, the length of the anchor body (1) being between 10 and 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969961.7A CN107569264B (en) | 2017-10-18 | 2017-10-18 | Knotless suture anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969961.7A CN107569264B (en) | 2017-10-18 | 2017-10-18 | Knotless suture anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107569264A CN107569264A (en) | 2018-01-12 |
| CN107569264B true CN107569264B (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710969961.7A Active CN107569264B (en) | 2017-10-18 | 2017-10-18 | Knotless suture anchor |
Country Status (1)
| Country | Link |
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| CN (1) | CN107569264B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420480B (en) * | 2018-05-22 | 2024-05-10 | 谭洪波 | Cartilage and soft tissue fixing device |
| CN111084644B (en) * | 2019-11-01 | 2023-10-17 | 上海市第六人民医院 | Suture-free labrum repairing rivet and labrum repairing method |
| CN111904501A (en) * | 2020-09-04 | 2020-11-10 | 北京市春立正达医疗器械股份有限公司 | Anchor nail implanting device |
| CN112494089B (en) * | 2020-11-17 | 2022-09-23 | 北京市春立正达医疗器械股份有限公司 | Exempt from to tie a knot anchor and anchor implantation apparatus |
| CN113288256A (en) * | 2021-05-10 | 2021-08-24 | 北京德益达美医疗科技有限公司 | Anchor with wire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0340159A1 (en) * | 1988-04-27 | 1989-11-02 | GebràDer Sulzer Aktiengesellschaft | Dowel pin for cementless bone implants |
| CN208447678U (en) * | 2017-10-18 | 2019-02-01 | 运怡（北京）医疗器械有限公司 | It is a kind of without knot suture anchor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2814058B1 (en) * | 2000-09-19 | 2005-10-28 | Guy Gabriel Peltier | SET OF IMPLANTS AND CORRESPONDING IMPLANTS |
| US6641596B1 (en) * | 2000-10-18 | 2003-11-04 | Ethicon, Inc. | Knotless bioabsorbable suture anchor system and method |
| US6641597B2 (en) * | 2001-05-25 | 2003-11-04 | Arthrex, Inc. | Interference fit knotless suture anchor fixation |
| US8840643B2 (en) * | 2009-07-02 | 2014-09-23 | Arthrex, Inc. | Segmented suture anchor |
| CA3060970C (en) * | 2010-09-24 | 2021-10-19 | Sportwelding Gmbh | Suture anchor and method for fixating a suture relative to hard tissue |
| CA2840186A1 (en) * | 2011-06-23 | 2012-12-27 | DePuy Synthes Products, LLC | Suture anchor system and method |
-
2017
- 2017-10-18 CN CN201710969961.7A patent/CN107569264B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0340159A1 (en) * | 1988-04-27 | 1989-11-02 | GebràDer Sulzer Aktiengesellschaft | Dowel pin for cementless bone implants |
| CN208447678U (en) * | 2017-10-18 | 2019-02-01 | 运怡（北京）医疗器械有限公司 | It is a kind of without knot suture anchor |
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| CN107569264A (en) | 2018-01-12 |
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