CN216724633U - Anchor with wire - Google Patents
Anchor with wire Download PDFInfo
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- CN216724633U CN216724633U CN202121539341.8U CN202121539341U CN216724633U CN 216724633 U CN216724633 U CN 216724633U CN 202121539341 U CN202121539341 U CN 202121539341U CN 216724633 U CN216724633 U CN 216724633U
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- anchor
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Abstract
The utility model relates to a suture anchor comprising: a pair of sutures and anchors; the anchor nail includes: the semi-ellipsoidal anchor head and the anchor body are composed of a plurality of coaxial circular truncated cones; a hollow pipeline penetrating to the tail end of the rivet body is arranged in the rivet head, a beam structure is arranged at the top of the hollow pipeline, a polygon prism is arranged in the hollow pipeline, and a gap is reserved between the polygon prism and the pipe wall of the hollow pipeline; the outer wall of the anchor nail body is axially provided with at least one pair of grooves from the tail end, and the same pair of grooves are provided with at least one pair of preformed holes in a penetrating way; the height of the polygon prism is not more than the height between the tail end of the anchor nail body and the reserved hole; the suture penetrates into the hollow pipeline from the gap, bypasses the beam structure and then penetrates out from the gap. The magnesium alloy of the utility model is easy to corrode in human body environment containing chloride ions, can provide a fixing and supporting effect in the bone healing stage, is completely degraded after healing, and has obvious clinical value.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a suture anchor.
Background
In the orthopedic surgery, ligament stripping, ligament repair or reconstruction are often required due to ligament injury surgery. The ligament repair condition can directly affect the motor ability of a patient, and poor repair can cause joint instability and secondary joint cartilage damage, and finally affect joint movement. At present, ligament repair by using a suture anchor is one of common means for ligament reconstruction. The first clinical use is that the non-absorbable metal anchor with high material strength and firm fixation is permanently left in the body as a foreign body after implantation, which may cause more complications. From a clinical point of view, most implants, except for those requiring permanent support for joints and the like, do not need to be present for a long time after the healing of the body tissue. The conventional degradable polymer anchor has the problems of insufficient mechanical properties (particularly, the elastic modulus is lower than that of human bones, and the elongation is poor) and adverse human body reactions (such as effusion, osteolysis, sustained foreign body reactions and the like) caused by the degradation process. The current anchor also has no later two-pair threading hole design.
Therefore, a need exists for a suture anchor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a suture anchor.
In order to achieve the purpose, the utility model adopts the technical scheme that:
providing a suture anchor comprising: a pair of sutures and anchors;
the anchor nail includes: the semi-ellipsoidal anchor head and the anchor body are composed of a plurality of coaxial circular truncated cones; a hollow pipeline penetrating to the tail end of the rivet body is formed in the rivet head, a beam structure is arranged at the top of the hollow pipeline, a polygon prism is arranged in the hollow pipeline, and a gap is reserved between the polygon prism and the wall of the hollow pipeline; the outer wall of the anchor nail body is axially provided with at least one pair of grooves from the tail end, and the same pair of grooves is provided with at least one pair of preformed holes in a penetrating manner; the height of the polygonal column does not exceed the height between the tail end of the anchor nail body and the reserved hole;
the suture penetrates into the hollow pipeline from the gap, and after bypassing the beam structure, the suture penetrates out from the gap.
Preferably, the suture is a knotless suture.
Preferably, the anchor is made of a degradable magnesium alloy.
Preferably, the grooves are evenly distributed on the anchor nail body.
Preferably, the two grooves of the same pair have the same length, and the two grooves of different pairs have different lengths.
Preferably, the lengths between two of said grooves of different pairs differ by at least the height of one truncated cone.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
the magnesium alloy of the utility model is easy to corrode (degrade) in human body environment containing chloride ions, can provide a fixing and supporting function in the bone healing stage, is completely degraded after healing, and has obvious clinical value, and the magnesium alloy has the characteristics of metal materials, toughness, rigidity, processing performance and the like which are superior to the characteristics of degradable high polymer materials such as polylactic acid and the like which are clinically applied at present, so the magnesium alloy is more suitable for clinical application in the aspect of repairing hard tissues such as bones and the like; according to the two pairs of the preformed holes, whether other types of sutures are added or not can be selected according to the conditions in the operation, and meanwhile, the combination of the preformed holes and the grooves and the polygonal column pressurization are knocked in the middle to prevent the inner core from slipping out, so that the bone ingrowth is facilitated, and the early anchor slippage is prevented.
Drawings
FIG. 1 is a sectional view of a front view of a suture anchor in accordance with example 2 of the present invention;
FIG. 2 is a schematic front view of a suture anchor according to embodiment 2 of the present invention;
FIG. 3 is a schematic side view of a suture anchor according to example 2 of the present invention;
FIG. 4 is a schematic top view of a suture anchor according to example 2 of the present invention;
FIG. 5 is a schematic front view of a suture anchor according to example 3 of the present invention;
FIG. 6 is a schematic diagram of an alternative structure of a polygon prism of the present invention;
wherein the reference numerals include: a suture 1; a hollow pipe 2; a beam structure 3; a trench 4; holes 5 are reserved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Examples1
This embodiment provides a suture anchor, includes: a pair of sutures 1 and anchors;
the anchor includes: the semi-ellipsoidal anchor head and the anchor body consisting of a plurality of coaxial circular truncated cones are used for conveniently gripping the bone tunnel; a hollow pipeline 2 penetrating to the tail end of the anchor nail body is formed in the anchor nail head so that a suture 1 can penetrate through the hollow pipeline, a beam structure 3 is arranged at the top of the hollow pipeline 2, a polygon prism is arranged in the hollow pipeline, the inner core is prevented from sliding out through pressurization, and a gap is reserved between the polygon prism and the wall of the hollow pipeline; the outer wall of the anchor nail body is axially and symmetrically provided with a pair of grooves 4 from the tail end so as to facilitate the later-stage temporary addition of a suture to pass through, and meanwhile, the pair of grooves 4 has the function of increasing blood supply, the top of the pair of grooves 4 is provided with a pair of preformed holes 5 in a penetrating manner so as to facilitate the later-stage temporary addition of the suture to pass through the anchor nail, and meanwhile, the bone ingrowth is facilitated;
the suture 1 penetrates into the hollow pipeline 2 from the gap, bypasses the beam structure 3 and then penetrates out from the gap.
As a preferred embodiment, the suture 1 is a knotless suture, which facilitates the later length adjustment; the anchor is made of degradable magnesium alloy, so that the anchor has the advantages of degradability, high biological safety, good biomechanical compatibility, low cost and the like.
Examples2
As shown in fig. 1, the present embodiment provides a suture anchor comprising: a pair of sutures 1 and anchors;
the anchor nail includes: the semi-ellipsoidal anchor head and the anchor body consisting of a plurality of coaxial circular truncated cones are used for conveniently gripping the bone tunnel; a hollow pipeline 2 penetrating to the tail end of the anchor nail body is formed in the anchor nail head so that a suture 1 can penetrate through the hollow pipeline, a beam structure 3 is arranged at the top of the hollow pipeline 2, a polygon prism is arranged in the hollow pipeline, the inner core is prevented from sliding out through pressurization, and a gap is reserved between the polygon prism and the wall of the hollow pipeline; as shown in fig. 2 to 4, two pairs of grooves 4 are axially formed in the outer wall of the anchor nail body from the tail end, so that a suture can be temporarily added in the later period to pass through the grooves, and the blood supply increasing function is also provided, a first pair of the grooves 4 are symmetrically distributed on the front side and the rear side of the anchor nail body, a second pair of the grooves 4 are symmetrically distributed on the left side and the right side of the anchor nail body, the lengths between the first pair of the grooves 4 and the second pair of the grooves 4 at least differ by the height of a circular truncated cone, and a pair of preformed holes 5 are respectively formed in the tops of the first pair of the grooves 4 and the second pair of the grooves 4 in a penetrating manner, so that the suture can be temporarily added in the later period to pass through the anchor nail, and bone ingrowth is facilitated;
the suture 1 penetrates into the hollow pipeline 2 from the gap, bypasses the beam structure 3 and then penetrates out from the gap.
As a preferred embodiment, the suture 1 is a knotless suture, which facilitates the later adjustment of the length; the anchor is made of degradable magnesium alloy, so that the anchor has the advantages of degradability, high biological safety, good biomechanical compatibility, low cost and the like.
Examples3
The present embodiment provides a suture anchor, including: a pair of sutures 1 and anchors;
the anchor nail includes: the semi-ellipsoidal anchor head and the anchor body are composed of a plurality of coaxial circular truncated cones so as to facilitate grasping of the bone tunnel; a hollow pipeline 2 penetrating to the tail end of the anchor nail body is formed in the anchor nail head so that a suture 1 can penetrate through the hollow pipeline, a beam structure 3 is arranged at the top of the hollow pipeline 2, a polygon prism is arranged in the hollow pipeline, the inner core is prevented from sliding out through pressurization, and a gap is reserved between the polygon prism and the wall of the hollow pipeline; the outer wall of the anchor nail body is axially provided with two pairs of grooves 4 from the tail end so as to facilitate the later temporary addition of a suture to pass through, and meanwhile, the anchor nail body also has the function of increasing blood supply, the first pair of grooves 4 are symmetrically distributed on the front side and the rear side of the anchor nail body, the second pair of grooves 4 are symmetrically distributed on the left side and the right side of the anchor nail body, the lengths of the first pair of grooves 4 and the second pair of grooves 4 are at least different by the height of a circular truncated cone, the top and the middle of the first pair of grooves 4 are respectively provided with a pair of preformed holes 5 in a penetrating manner, the top of the second pair of grooves 4 is provided with a pair of preformed holes 5 in a penetrating manner, as shown in fig. 5, the preformed holes 5 formed in the middle of the first pair of grooves and the preformed holes formed in the top of the second pair of grooves are at least different by the height of a circular truncated cone so as to facilitate the later temporary addition of a suture to pass through the anchor, meanwhile, the bone ingrowth is facilitated;
the suture 1 penetrates into the hollow pipeline 2 from the gap, bypasses the beam structure 3 and then penetrates out from the gap.
As a preferred embodiment, the suture 1 is a knotless suture, which facilitates the later adjustment of the length; the anchor is made of degradable magnesium alloy, so that the anchor has the advantages of degradability, high biological safety, good biomechanical compatibility, low cost and the like.
Examples4
The present embodiment provides a suture anchor, including: a pair of sutures 1 and anchors;
the anchor nail includes: the semi-ellipsoidal anchor head and the anchor body consisting of a plurality of coaxial circular truncated cones are used for conveniently gripping the bone tunnel; a hollow pipeline 2 penetrating to the tail end of the anchor nail body is formed in the anchor nail head so that a suture 1 can penetrate through the hollow pipeline, a beam structure 3 is arranged at the top of the hollow pipeline 2, a polygon prism is arranged in the hollow pipeline, the inner core is prevented from sliding out through pressurization, and a gap is reserved between the polygon prism and the wall of the hollow pipeline; the outer wall of the anchor nail body is axially provided with two pairs of grooves 4 from the tail end so as to facilitate the later temporary addition of sutures to pass through, and simultaneously has the function of increasing blood supply, the first pair of grooves 4 are symmetrically distributed on the front side and the rear side of the anchor nail body, the second pair of grooves 4 are symmetrically distributed on the left side and the right side of the anchor nail body, the lengths of the first pair of grooves 4 and the second pair of grooves 4 are at least different by the height of a circular truncated cone, the tops and the middle parts of the first pair of grooves 4 and the second pair of grooves 4 are respectively provided with a pair of preformed holes 5 in a penetrating manner, the preformed holes 5 of the first pair of grooves in the middle part and the preformed holes of the second pair of grooves in the top part are at least different by the height of a circular truncated cone, and the preformed holes 5 of the second pair of grooves in the middle part and the first pair of grooves in the middle part are also at least different by the height of a circular truncated cone, so that the suture thread can be temporarily added in the later period to pass through the anchoring nail, and meanwhile, the bone ingrowth is facilitated;
the suture 1 penetrates into the hollow pipeline 2 from the gap, bypasses the beam structure 3 and then penetrates out from the gap.
As a preferred embodiment, the suture 1 is a knotless suture, which facilitates the later adjustment of the length; the anchor is made of degradable magnesium alloy, so that the anchor has the advantages of degradability, high biological safety, good biomechanical compatibility, low cost and the like.
In conclusion, the magnesium alloy of the utility model is easy to corrode (degrade) in human body environment containing chloride ions, can provide a fixing and supporting effect in a bone healing stage, is completely degraded after healing, and has obvious clinical value, and the magnesium alloy has the characteristics of metal materials, toughness, rigidity, processing performance and the like which are superior to those of degradable high polymer materials such as polylactic acid and the like which are clinically applied at present, so that the magnesium alloy is more suitable for clinical application in the aspect of repairing hard tissues such as bones and the like; the two pairs of the preformed holes can select whether to add other types of sutures according to the conditions in the operation, and the combination of the preformed holes and the grooves is favorable for bone ingrowth and prevents early anchor slippage.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (6)
1. A suture anchor, comprising: a pair of sutures (1) and anchors;
the anchor nail includes: the semi-ellipsoidal anchor head and the anchor body are composed of a plurality of coaxial circular truncated cones; a hollow pipeline (2) penetrating to the tail end of the anchor nail body is formed in the anchor nail head, a beam structure (3) is arranged at the top of the hollow pipeline (2), a polygon prism is arranged in the hollow pipeline (2), and a gap is reserved between the polygon prism and the wall of the hollow pipeline; the outer wall of the anchor nail body is axially provided with at least one pair of grooves (4) from the tail end, and the same pair of grooves (4) are provided with at least one pair of preformed holes (5) in a penetrating manner; the height of the polygonal column does not exceed the height between the tail end of the anchor nail body and the reserved hole;
the suture (1) penetrates into the hollow pipeline (2) from the gap, bypasses the beam structure (3), and then penetrates out from the gap.
2. The suture anchor according to claim 1, characterized in that the suture (1) is a knotless suture.
3. The suture anchor of claim 1, wherein the anchor is made of a degradable magnesium alloy.
4. The suture anchor according to claim 1, characterized in that the grooves (4) are evenly distributed over the anchor body.
5. A suture anchor according to claim 4 wherein the two grooves (4) of the same pair are of the same length and the two grooves (4) of different pairs are of different lengths.
6. A suture anchor according to claim 5 wherein the length of the two grooves (4) of different pairs differs by at least the height of one truncated cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539341.8U CN216724633U (en) | 2021-07-07 | 2021-07-07 | Anchor with wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539341.8U CN216724633U (en) | 2021-07-07 | 2021-07-07 | Anchor with wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216724633U true CN216724633U (en) | 2022-06-14 |
Family
ID=81908612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121539341.8U Active CN216724633U (en) | 2021-07-07 | 2021-07-07 | Anchor with wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216724633U (en) |
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2021
- 2021-07-07 CN CN202121539341.8U patent/CN216724633U/en active Active
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