CN107095697B - Flat suture anchor - Google Patents
Flat suture anchor Download PDFInfo
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- CN107095697B CN107095697B CN201710335732.XA CN201710335732A CN107095697B CN 107095697 B CN107095697 B CN 107095697B CN 201710335732 A CN201710335732 A CN 201710335732A CN 107095697 B CN107095697 B CN 107095697B
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- nail body
- flat suture
- pull wire
- anchor
- threading
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 10
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 5
- 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
- 229920002530 polyetherether ketone Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 210000000988 bone and bone Anatomy 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 6
- 210000001519 tissue Anatomy 0.000 description 6
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 208000021945 Tendon injury Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 229920000747 poly(lactic acid) Polymers 0.000 description 3
- 239000004626 polylactic acid Substances 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 3
- 208000003076 Osteolysis Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007857 degradation product Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 208000029791 lytic metastatic bone lesion Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 201000004595 synovitis Diseases 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010061223 Ligament injury Diseases 0.000 description 1
- 208000024288 Rotator Cuff injury Diseases 0.000 description 1
- 206010039227 Rotator cuff syndrome Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000000323 shoulder joint Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000186 triangular fibrocartilage Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0482—Needle or suture guides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
-
- 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
- A61B2017/0647—Surgical staples, i.e. penetrating the tissue having one single leg, e.g. tacks
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rheumatology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a flat suture anchor, which comprises a nail body and a pull wire; the nail body comprises a threading hole; the pull wire is arranged in the threading hole in a penetrating way and connected with the nail body; the pull wire contains a flat suture that extends beyond the shank. The flat suture used by the invention increases the contact surface with human tissues, prevents the peripheral tissues of the surgical site and even the palm of a doctor from being cut in the surgical process, and increases the fixation strength.
Description
Technical Field
The present invention relates to surgical medical devices, and in particular, to flat suture anchors.
Background
In recent years, the technology of a wire anchor using titanium alloy, PEEK and polylactic acid materials as materials is widely used for repairing injuries at the joint of soft tissues and bone tissues, such as: rotator cuff injury, labrum injury, proximal femur tendon injury, anterior and posterior labrum injury on the shoulder joint, collateral ulnar ligament injury reconstruction, distal biceps brachii tendon injury, inter-navicular ligament repair, triangular fibrocartilage repair, extensor tendon injury repair, and the like. The hard anchor is screwed on bone tissue near the fixing part, the preloaded suture on the anchor passes through the soft tissue to be repaired, and the soft tissue is fixed in contact with the surface of the bone tissue by binding and tightening the suture, so that the physical repair of the damaged tissue is completed.
As hard material anchor technology is increasingly applied, hard material anchors are known to suffer from a number of drawbacks: the titanium alloy metal anchor is easy to generate inflammation due to rejection reaction after being implanted, so that bone dissolution occurs at the implantation position, the anchor is caused to be loosened and shifted, and the fixation is caused to fail. The PLA absorbable anchor can be degraded and broken too early after being implanted, the fixation firmness is reduced due to secondary anchor displacement, and the degradation product can cause problems such as synovitis, osteolysis and the like.
The anchor with the wire made of PEEK solves the problems that the titanium alloy anchor is easy to loosen and shift after implantation, and the anchor with the absorbable material is broken or degraded prematurely after implantation, the fixation firmness is reduced due to secondary shift, and the degradation products easily cause synovitis, osteolysis and the like. In practical application, after the anchor with the wire is implanted into a bone canal, a doctor is required to forcefully pull the anchor outwards through a suture, so that on one hand, the axial direction of the anchor can be adjusted to be more matched with the bone canal, and on the other hand, the displacement possibly generated by the anchor in the bone canal during use can be eliminated in advance, and the fixation firmness is enhanced. However, the traditional suture has smaller diameter and circular cross section, and the circular suture can cut peripheral tissues of an operation part and even the palm of a doctor in the process of forcefully pulling an anchor, so that the traditional circular suture is easily torn when being subjected to such large pulling force.
Disclosure of Invention
In view of the shortcomings in the prior art, it is an object of the present invention to provide a flat suture anchor.
The flat suture anchor provided by the invention comprises a nail body and a pull wire;
the nail body comprises a threading hole;
the pull wire is arranged in the threading hole in a penetrating way and connected with the nail body;
the pull wire contains a flat suture that extends beyond the shank.
Preferably, the pull wire further comprises a cut-preventing soft rod;
the flat suture is connected with the threading hole in a matched manner;
the two ends of the flat suture are respectively connected with the two ends of the anti-cutting soft rod.
Preferably, the flat suture passes through the threading aperture;
the flat sutures are connected end to end.
Preferably, the nail body is provided with an opening along the axial direction, and the opening extends along the axial direction and penetrates through the proximal end surface of the nail body; the threading hole is arranged at the far end of the open hole.
One or more threading holes are present;
the pull wire is penetrated along the threading hole and extends out of the proximal end face of the nail body along the opening.
Preferably, the cross-sectional shape of the opening is rectangular.
Preferably, the threading hole is arranged on the proximal end face of the nail body;
there are one or more threading holes.
Preferably, a backup guidewire is also included;
there are one or more spare guide wires;
the standby guide wire is arranged in the threading hole in a threading way along with the pull wire;
the standby guide wire is separated from the pull wire.
Preferably, the outer wall of the nail body is provided with a non-return piece;
the non-return piece extends outwards from the outer wall of the nail body according to the following rules:
-in a radial direction away from the axis of the shank;
-an axial direction along the distal end of the shank to the proximal end of the shank.
Preferably, the umbrella further comprises an elastic element and an umbrella-shaped element;
an opening is formed in the nail body, and the elastic piece is positioned in the opening;
the pull wire can deform the elastic piece;
the elastic element is connected with the umbrella-shaped element and can drive the umbrella-shaped element to extend and penetrate through the outer wall of the nail body.
Preferably, the pin body is made of PEEK material.
Compared with the prior art, the invention has the following beneficial effects:
1. the flat suture used by the invention increases the contact surface with human tissues, prevents the peripheral tissues of the operation part and even the palm of a doctor from being cut in the operation process, and increases the fixing strength;
2. the invention provides a standby guide wire which can directly penetrate a suture without taking out an anchor nail under the condition that the suture is accidentally broken;
3. the elastic piece is arranged in the anchor, when the force of the pulling coil is large enough, the displacement possibly generated by the anchor in use is eliminated in advance, and meanwhile, the elastic piece deforms and gives out a 'click' sound to remind a doctor that the anchor is in place;
4. according to the invention, the umbrella-shaped element is arranged and driven by the elastic element, and can extend out of the nail body and contact with the bone cavity, so that the fixation firmness is increased.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a flat suture anchor with cut-resistant soft stem with openings;
FIG. 2 is a schematic view of a flat suture anchor without cut-resistant soft stem with openings;
FIG. 3 is a schematic view of a flat suture anchor with a cut-resistant soft stem without openings;
FIG. 4 is a schematic view of a flat suture anchor without cut-out soft stem and without aperture;
FIG. 5 is a schematic view of a cut-resistant soft rod;
FIG. 6 is a schematic view of the collapsed state of the umbrella;
fig. 7 is a schematic view of the umbrella in an expanded state.
The figure shows:
nail body 1 clasp 211
Flat suture 22 of threading hole 11
Elastic member 3 with hole 12
Tab 13 tab 31
Umbrella-shaped element 4 of pull wire 2
Cutting-proof soft rod 21 stay bar 41
Detailed Description
The present invention will be described in detail with reference to specific examples. 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 variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
In the embodiment, the flat suture anchor provided by the invention comprises a nail body 1 and a pull wire 2, wherein the nail body 1 is made of PEEK material, but can also be made of other materials such as titanium alloy and polylactic acid material. As shown in fig. 1 to 4, the nail body 1 is provided with a threading hole 11, and the pull wire 2 can be passed through the threading hole 11. In order to solve the problem that the conventional round suture is easy to cut the peripheral tissues of the operation part in the operation process, the pull wire 2 designed by the invention comprises a flat suture 22, so that the contact surface with the human tissues is enlarged. During operation, the doctor holds the flat suture 22 or the cut-preventing soft rod 21 by hand, and the contact area between the soft rod and the pull wire 2 is increased, so that the cut is prevented. In order to achieve the above effects, the following description will be made with respect to several variations.
As shown in fig. 1, the nail body 1 of the wire anchor is provided with an opening 12 along the axial direction, the opening 12 extends along the axial direction and penetrates through the proximal end face of the nail body 1, the distal end of the opening 12 is provided with a threading hole 11, the threading hole 11 penetrates through the nail body 1 along the radial direction of the nail body 1, and the distal end face of the nail body 1 is provided with a guide groove to prevent the pull wire 2 from being separated from a winding path when being penetrated. The pull wire 2 is composed of two parts of a flat suture 22 and a cutting-preventing soft rod 21, the flat suture 22 is penetrated inside the nail body 1, two end parts extend through the proximal end face of the nail body 1 and reach the outside of the nail body, the two end parts of the flat suture 22 continue to extend and are respectively connected with the two ends of one cutting-preventing soft rod 21, after the nail body 1 reaches a preset position during operation, a doctor holds the cutting-preventing soft rod 21 to pull the nail body 1 outwards, so that displacement possibly generated in a bone canal of the nail body 1 during operation is eliminated, and the fixation firmness is enhanced. The flat suture 22 and the cut-preventing soft rod 21 may be directly connected by knotting, or the cut-preventing soft rod 21 may be made into a handle with two buckles 211 at two ends, and the two ends of the flat suture 22 are respectively tied to the two buckles 211, as shown in fig. 5. In addition, the anti-cutting soft rod 21 can also be of a structure with an axial through hole, one end of the flat suture line 22 passes through the through hole and then is knotted with the other end, and the anti-cutting soft rod 21 can slide relative to the flat suture line 22 in the use process, so that the pulling position can be conveniently adjusted. Further preferably, the anti-cutting soft rod 21 is formed by rolling soft cloth, the soft cloth is provided with a thread gluing mechanism, and the anti-cutting soft rod 21 is directly sleeved on the flat suture 22 after the flat suture 22 is knotted.
As shown in fig. 2, in the modified example, the pull wire 2 is directly formed by a flat suture thread 22, the flat suture thread 22 is penetrated in the nail body 1, and after extending to the outside of the nail body 1 along the opening 12, the two end parts are directly knotted and connected, so that the operation of the next step can be performed, and the use is convenient. To simplify the threading process of the flat suture 22, the cross section of the opening 12 of the shank 1 can be designed in a rectangular shape to match the shape of the flat suture 22. Of course, the feature of the rectangular cross section of the opening 12 may be applied to other variations, and it is further preferred that the cross-sectional shape of the opening 12 may be other than rectangular, circular, such as a regular pentagon, etc. Preferably, the penetrating manner of the pull wire 2 on the nail body 1 can also be changed, for example, two threading holes 11 are formed in the nail body 1, the two threading holes 11 penetrate through the nail body 1 along the radial direction of the nail body 1 and are distributed vertically along the axial direction of the nail body 1, the two threading holes 11 are communicated with the open hole 12, one end of the pull wire 2 penetrates into the nail body 1 from the open hole 12, penetrates through the threading hole 11 on one side of the nail body 1, penetrates through the threading hole 11 on the other side of the nail body 1, and finally extends out of the proximal end face of the nail body 1 along the open hole 12. Correspondingly, the number of the threading holes 11 can be one or more, so as to achieve the purpose of connecting the nail body 1 and the pull wire 2, but the more the number of the threading holes 11 is, the more complex the processing of the nail body 1 is, and the more difficult the threading is.
As in the examples of the variation shown in fig. 3 and 4, the differences are as follows, corresponding to the examples of the variation shown in fig. 1 and 2: the nail body 1 of the variation shown in fig. 3 and 4 has no hole 12 therein, and the threading holes 11 are provided on the proximal end surface of the nail body 1, and the number of the threading holes 11 and the description of threading of the pull wire 2 are as described above.
During surgery, it is often the case that the pull wire 2 is broken, and at this time, if the nail body 1 is taken out from the surgical site and re-threaded, it becomes very complicated, so that the present invention also includes a spare guide wire. In the process of threading operation on the nail body 1 before operation, one or more standby guide wires and the pull wires 2 are taken to pass through the threading holes 11 together, if the pull wires 2 are broken in operation, the pull wires 2 can be directly taken out from the nail body 1, the standby guide wires are separated from the pull wires 2, at the moment, one end of each standby guide wire is connected with a new pull wire 2, the other end of each standby guide wire is pulled and pulled out outwards, the new pull wires 2 are guided to pass through the threading holes 11, and the threading connection with the nail body 1 is completed. Further, in order to limit the displacement of the nail body 1 in the bone canal, in a preferred example, the outer wall of the nail body 1 is provided with a non-return tab 13, the non-return tab 13 extending outwardly from the outer wall of the nail body 1 according to the following rule: along a radial direction away from the axis of the shank 1; along the axial direction from the distal end of the shank 1 to the proximal end of the shank.
In a preferred embodiment, the flat suture anchor provided by the present invention further comprises an elastic element 3 and an umbrella element 4, which feature is present in the tape anchor comprising openings 12 in the shank 1. The elastic piece 3 is arranged in the opening 12, two ends of the elastic piece 3 are arranged on the wall surface of the opening 12, the upper end of the elastic piece 3 is provided with a pull ring 31, and the pull wire 2 passes through the pull ring 31 to be connected with the elastic piece 3. The lower extreme of elastic component 3 is connected with an umbrella-shaped component 4, and elastic component 3 can control umbrella-shaped component 4 to change between two kinds of states of furling state and strutting state: in the folded state, the umbrella-shaped element 4 is wholly positioned in the nail body 1; in the expanded state, the stay bar 41 of the umbrella-shaped element 4 extends to the outside of the nail body 1. For an unused belted anchor, the inner elastic element 3 is concave, and the umbrella-shaped element 4 is in a folded state; when the elastic member 3 becomes an upward convex shape by the pulling action of the pulling wire 2, the umbrella-shaped member 4 becomes a spread-apart state. In the expanded state of umbrella-shaped element 4, the extending direction of stay 41 is the same as that of non-return tab 13 described above, that is, stay 41 extends outward from the outer wall of nail body 1 according to the following rule: along a radial direction away from the axis of the shank 1; along the axial direction from the distal end of the shank 1 to the proximal end of the shank. The function is also the same as the check sheet 13, i.e. to limit the displacement of the pin 1 in the bone canal. The number of the stay bars 41 may be one or more, and in a preferred example, 4 or 6 stay bars 41 are provided to be uniformly distributed in the circumferential direction. The elasticity of the elastic piece 3 needs to be large enough, so that the elastic piece 3 can be just changed into an upward convex shape from a downward concave shape when the medical staff pulls the nail body 1 in place during operation, and the elastic piece 3 can give out sound in the deformation process, so that the medical staff can be reminded. Of course, if only the reminding function is needed, the elastic element 3 can be independently extracted for use, and the function of the umbrella-shaped element 4 is completed by the non-return piece 13. Preferably, the pull ring 31 on the elastic element 3 can be separately connected with a pull wire, and the pull wire is only used for deforming the elastic element 3, and after the nail body 1 is in place, the pull wire is pulled to deform the elastic element 3 to drive the state of the umbrella-shaped element 4 to change, so that the position of the nail body 1 in the bone canal is further fixed.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (8)
1. A flat suture anchor, which is characterized by comprising a anchor body and a pull wire;
the nail body comprises a threading hole;
the pull wire is arranged in the threading hole in a penetrating way and connected with the nail body;
the pull wire comprises a flat suture extending beyond the shank;
also comprises a standby guide wire;
there are one or more spare guide wires;
the standby guide wire is arranged in the threading hole in a threading way along with the pull wire;
the standby guide wire is separated from the pull wire;
the umbrella also comprises an elastic piece and an umbrella-shaped piece;
an opening is formed in the nail body, and the elastic piece is positioned in the opening;
the pull wire can deform the elastic piece;
the elastic element is connected with the umbrella-shaped element and can drive the umbrella-shaped element to extend and penetrate through the outer wall of the nail body.
2. The flat suture anchor of claim 1, wherein the pull wire further comprises a cut-resistant soft rod;
the flat suture is connected with the threading hole in a matched manner;
the two ends of the flat suture are respectively connected with the two ends of the anti-cutting soft rod.
3. The flat suture anchor of claim 1, wherein the flat suture passes through the threading aperture;
the flat sutures are connected end to end.
4. A flat suture anchor according to claim 2 or 3, wherein the shank is provided with an aperture in the axial direction, the aperture extending in the axial direction and through the proximal face of the shank;
the threading hole is arranged at the far end of the opening;
one or more threading holes are present;
the pull wire is penetrated along the threading hole and extends out of the proximal end face of the nail body along the opening.
5. The flat suture anchor of claim 4, wherein the aperture cross-sectional shape is rectangular.
6. A flat suture anchor according to claim 2 or 3, wherein the threading aperture is provided on a proximal face of the anchor body;
there are one or more threading holes.
7. The flat suture anchor of claim 1, wherein the outer wall of the anchor body is provided with a backstop;
the non-return piece extends outwards from the outer wall of the nail body according to the following rules:
-in a radial direction away from the axis of the shank;
-an axial direction along the distal end of the shank to the proximal end of the shank.
8. The flat suture anchor of claim 1, wherein the shank is made of PEEK material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335732.XA CN107095697B (en) | 2017-05-12 | 2017-05-12 | Flat suture anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335732.XA CN107095697B (en) | 2017-05-12 | 2017-05-12 | Flat suture anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107095697A CN107095697A (en) | 2017-08-29 |
| CN107095697B true CN107095697B (en) | 2024-02-06 |
Family
ID=59669483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710335732.XA Active CN107095697B (en) | 2017-05-12 | 2017-05-12 | Flat suture anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107095697B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040845A (en) * | 2021-03-11 | 2021-06-29 | 北京中安泰华科技有限公司 | Automatic locking suture anchor reconstruction system |
| CN116138824A (en) * | 2023-01-10 | 2023-05-23 | 北京市春立正达医疗器械股份有限公司 | Anchor and self-locking type belt line anchor |
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