CN210962134U - Flat sheath suture anchor and implant device - Google Patents
Flat sheath suture anchor and implant device Download PDFInfo
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- CN210962134U CN210962134U CN201920964425.2U CN201920964425U CN210962134U CN 210962134 U CN210962134 U CN 210962134U CN 201920964425 U CN201920964425 U CN 201920964425U CN 210962134 U CN210962134 U CN 210962134U
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Abstract
The utility model provides a flat sheath suture anchor nail and implantation device, including suture, flat sheath, be provided with one or more trompils on the flat sheath, the suture is worn into from the trompil that is close to a tip on the flat sheath, wears out from adjacent trompil again, and repeated wearing is worn out, wears into or wears out from the trompil that is close to another tip, will wear the flat sheath of suture and implant the locating hole on the bone tissue, can make flat sheath fold between the trompil through tightening up suture both ends, the flat sheath volume grow after folding, the size of flat sheath is greater than the size of locating hole, the anchoring is in the locating 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.
Description
Technical Field
The utility model relates to the field of medical equipment, specifically, relate to a flat sheath suture anchor and implant device.
Background
In recent years, the suture anchor technology using titanium alloy, PEEK (polyether ether ketone) and polylactic acid as materials is widely used for repairing the damage of the soft tissue and bone tissue junction, such as: rotator cuff injury, labral injury, femoral proximal tendon injury, injury to the anterior and posterior aspects of the labrum on the shoulder joint, ulnar collateral ligament injury reconstruction, biceps brachii distal tendon injury, navicular intercostal ligament repair, triangular fibrocartilage repair, extensor tendon injury repair, and the like. The hard anchor is screwed on the bone tissue near the position needing to be fixed like a screw, the preloaded suture on the anchor penetrates through the soft tissue needing to be repaired, and the soft tissue is contacted and fixed 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 the application of hard material anchor technology is becoming more extensive, the hard material anchor is known to have a plurality of defects that the titanium alloy metal anchor is easy to generate inflammation due to rejection reaction after being implanted, so that bone dissolution occurs at the implanted position, the anchor is loosened and displaced, and the fixation failure is caused.
Patent document CN202313533U discloses a full-thread suture anchor comprising: the anchor body forms the main structure of the product, and the periphery of the anchor body is provided with threads; the threading structure is arranged inside the anchor body, a channel is formed in the anchor body, and threading holes serving as openings at two ends of the threading structure are respectively arranged at positions corresponding to peripheral threads of the anchor body; the suture sets up inside above-mentioned threading structure, and the both ends of suture correspond different through wires holes respectively, and the inside threading structure of anchor body is the single channel structure of whole intercommunication. The threading structure is simpler, the time required for product processing is reduced, and the working efficiency is improved. Set up the arc recess in the screw thread position corresponding to through wires hole position to can make things convenient for the suture to penetrate in the through wires hole more. In addition, the two ends of the suture are respectively knotted at the corresponding arc-shaped grooves, so that the suture cannot be separated from the anchor nail body, and the hidden danger in the operation is reduced. However, the anchor using the hard structure is liable to cause rejection reaction or dissolution to cause problems such as loosening and displacement, and the anchor is fixed to bone tissue by a screw, and is not easy to install.
SUMMERY OF THE UTILITY MODEL
To overcome the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a flat sheath suture anchor and implantation device.
According to one aspect of the present invention, there is provided a flat sheath suture anchor comprising a suture and a flat sheath, wherein the flat sheath is provided with one or more openings, the suture is threaded through the opening near one end of the flat sheath, threaded out through the adjacent opening, and threaded in and out repeatedly until threaded in or out through the opening near the other end,
implanting the flat sheath with the threaded suture into a positioning hole in bone tissue, and enabling the flat sheath to be folded between the openings by tightening two ends of the suture, wherein the size of the folded 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;
when a plurality of flat sheaths are provided, two ends of the suture thread respectively penetrate in or out from two end parts of the first flat sheath in a mode of penetrating in and out through adjacent openings on the flat sheaths, two ends of the suture thread positioned at two end parts of the first flat sheath respectively penetrate in or out from the middle or two end parts of the second flat sheath in a mode of penetrating in and out through adjacent openings to two end parts or the middle of the second flat sheath, two ends of the suture thread positioned at two end parts of the second flat sheath respectively penetrate in or out from the middle or two end parts of the third flat sheath in a mode of penetrating in and out through adjacent openings to two end parts or the middle of the third flat sheath, and the step is repeated to penetrate the suture thread into the plurality of flat sheaths.
Preferably, the suture is a flat suture or a round suture.
Preferably, the suture is a suture woven by ultra-high molecular weight polyethylene yarns.
Preferably, the flat sheath is a single-layer flat structure braided fabric formed by braiding polyethylene terephthalate.
Preferably, when the suture positioning hole is implanted into bone tissue, the flat sheath penetrated with the two free ends of the suture is positioned below the other flat sheaths, namely the flat sheath penetrated with the two free ends of the suture is closer to the bottom of the positioning hole than the other flat sheaths penetrated with the suture.
Preferably, the distance between the open pores on the flat sheath is 3-5mm, the distance between the open pores at two ends of the flat sheath and the two ends is 1mm, and the number of the open pores is 4-8.
Preferably, the openings on the flat sheath are distributed equidistantly, and the number of the openings is even.
Preferably, each flat sheath of the threaded suture is of an axisymmetric structure.
Preferably, the middle position of the first flat sheath is fixed with the suture or can slide relatively.
According to another aspect of the utility model, provide an implantation device, including the roof ware with flat sheath suture anchor, the roof ware with flat sheath suture anchor roof in the locating hole.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. 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.
2. The utility model discloses simple structure, the processing ease, it is fixed convenient, firm, anti extraction dynamic height.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention before implantation when the suture is flat.
Fig. 2 is a schematic structural view of the utility model after tightening the suture when the suture is flat.
Fig. 3 is a schematic structural view of the present invention before implantation when using a circular suture.
Fig. 4 is a schematic structural view of the utility model after the circular suture is implanted and the suture is tightened.
The figures show that:
Second flat sheath 2 circular suture 5
Detailed Description
The present invention will be described in detail with reference to the following embodiments. 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 various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The utility model discloses an overcome the defect of hard material anchor nail, designed flat sheath suture anchor nail, it is little to have implant bone way, and the bone removes the volume and is few, reprocesses easily, but replaceability advantage such as outstanding to there is good biocompatibility. The utility model discloses a fixed strength of full suture anchor nail in the bone way has been improved to a plurality of flat sheaths, and it is little to solve full suture anchor nail deflection, the not enough shortcoming of fixed strength. The utility model discloses use flat suture as raw and other materials, to the cutting damage of soft tissue when reducing the fixed soft tissue of suture.
According to an aspect of the present invention, there is provided a flat sheath suture anchor, as shown in fig. 1-4, comprising a suture and a flat sheath, wherein the flat sheath is provided with one or more openings, the suture penetrates through the opening near one end of the flat sheath, penetrates out from the adjacent opening, and repeatedly penetrates out until penetrating into or out from the opening near the other end, the flat sheath with the suture penetrated therein is implanted into a positioning hole in bone tissue, the flat sheath can be folded between the openings by tightening up the two ends of the suture, the size of the folded flat sheath is increased, 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 (U-shaped in figure 1 and straight in figure 3); when a plurality of flat sheaths are provided, two ends of the suture thread respectively penetrate in or out from two end parts of the first flat sheath in a mode of penetrating in and out through adjacent openings on the flat sheaths, two ends of the suture thread positioned at two end parts of the first flat sheath respectively penetrate in or out from the middle or two end parts of the second flat sheath in a mode of penetrating in and out through adjacent openings to two end parts or the middle of the second flat sheath, two ends of the suture thread positioned at two end parts of the second flat sheath respectively penetrate in or out from the middle or two end parts of the third flat sheath in a mode of penetrating in and out through adjacent openings to two end parts or the middle of the third flat sheath, and the step is repeated to penetrate the suture thread into the plurality of flat sheaths. The suture and the flat sheath can slide relatively. Preferably, two flat sheaths are included, as shown in fig. 1 or 3.
The suture is a flat suture or a round suture. The suture is formed by weaving ultrahigh molecular weight polyethylene yarns. The width of the flat suture is 1 mm. The flat sheath is a single-layer flat structure braided fabric formed by braiding polyethylene terephthalate, and the width of the flat sheath is 2-4 mm.
When the suture is implanted into a positioning hole in bone tissue, the flat sheath penetrated with the two free ends of the suture is positioned below other flat sheaths, namely the flat sheath penetrated with the two free ends of the suture is closer to the bottom of the positioning hole than the other flat sheaths penetrated by the suture. As shown in fig. 2 or 4, the second sheath with two free ends of the suture is positioned below the first sheath (without two free ends of the suture) with the suture passing through, and is closer to the bottom of the positioning hole.
The distance between the open holes on the flat sheath is 3-5mm, the distance between the open holes at the two ends of the flat sheath and the two ends is 1mm, and the number of the open holes is 4-8. The larger the opening pitch, the smaller the number of openings. The open pores on the flat sheath are distributed at equal intervals, and the number of the open pores is even. Each flat sheath penetrated by the suture is in an axisymmetric structure. The middle position of the first flat sheath is fixed with the suture or can slide relatively.
According to another aspect of the utility model, provide an implantation device, including the roof ware with flat sheath suture anchor, the roof ware with flat sheath suture anchor roof in the locating hole.
As shown in figure 1 or 3, when the suture is implanted, the middle section of the second flat sheath is implanted into the drilled locating hole by using the ejector, and after the second flat sheath is implanted to the required depth, the thimble of the ejector is withdrawn, and the suture is tightened together. As shown in fig. 2 or 4, the first and second sheaths are tensioned by the suture and then close to each other, while being folded toward the center to form a coil. The size of the first flat sheath and the second flat sheath exceeds the size of the pre-drilled positioning hole (bone channel) in the forming process, so that the bone channel wall is pushed away, a coil larger than the bone channel is formed, and excellent fixing strength is obtained. And the suture is cinched to terminate on the first sheath, with the second sheath (with the free ends of the suture) being below the first sheath during implantation. After the suture is tightened, the second sheath fails only after being pushed over the first sheath in the bone canal, which is difficult to achieve in narrow bone canals, and therefore, the anchoring strength of the double sheath is superior to that of the single sheath.
As shown in fig. 1-4, when the flat sheath suture anchor is implanted into the pilot hole, tightening the suture causes the open points of the flat sheath to be drawn together, thereby forming an accordion shape of the flat sheath between the open points. The flat sheath can make self horizontal volume increase after tightening up, and the locating hole that originally just holds the anchor is also enlarged consequently, and when tightening up completely, the size that flat sheath self will be far more than the locating hole that the top can pass through to obtain powerful fixed strength. The significance of the double sheath is that the fixing strength of the anchor is further increased. The first sheath is above the second sheath and the second sheath must be withdrawn first in the event of failure, so that the pilot hole must be sized to allow 2 sheaths to pass through simultaneously to fail when the anchor is to fail. This hole is necessarily much larger than the hole diameter through which a single flat sheath passes, and thus, the double sheath can further increase the anchor fixation strength.
When the anchor needs to be replaced, the suture on the flat sheath at the topmost end of the positioning hole is broken, for example, the suture is cut off, the two free ends of the suture are pulled after the suture is cut off, the suture can be separated from the flat sheath, the anchor is made to be invalid, and the new anchor can be replaced after the suture is made to be invalid.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A flat sheath suture anchor is characterized by comprising a suture and a flat sheath, wherein one or more openings are formed in the flat sheath, 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,
implanting the flat sheath with the threaded suture into a positioning hole in bone tissue, and enabling the flat sheath to be folded between the openings by tightening two ends of the suture, wherein the size of the folded 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;
when a plurality of flat sheaths are provided, two ends of the suture thread respectively penetrate in or out from two end parts of the first flat sheath in a mode of penetrating in and out through adjacent openings on the flat sheaths, two ends of the suture thread positioned at two end parts of the first flat sheath respectively penetrate in or out from the middle or two end parts of the second flat sheath in a mode of penetrating in and out through adjacent openings to two end parts or the middle of the second flat sheath, two ends of the suture thread positioned at two end parts of the second flat sheath respectively penetrate in or out from the middle or two end parts of the third flat sheath in a mode of penetrating in and out through adjacent openings to two end parts or the middle of the third flat sheath, and the step is repeated to penetrate the suture thread into the plurality of flat sheaths.
2. The flat sheath suture anchor of claim 1, wherein the suture is a flat suture or a round suture.
3. The flat sheath suture anchor of claim 1, wherein the suture is a braided suture of ultra high molecular weight polyethylene yarn.
4. The flat sheath suture anchor of claim 1, wherein the flat sheath is a single layer flat structure braid of polyethylene terephthalate braid.
5. The flat sheath suture anchor of claim 1, wherein when implanted into a pilot hole in bone tissue, the flat sheath with the two free ends of the suture is positioned below the other flat sheath, i.e., the flat sheath with the two free ends of the suture is closer to the bottom of the pilot hole than the other flat sheath with the suture.
6. The flat sheath suture anchor of claim 1, wherein the openings on the flat sheath are spaced 3-5mm apart, the openings at both ends of the flat sheath are spaced 1mm apart, and the number of openings is 4-8.
7. The flat sheath suture anchor of claim 1, wherein the openings in the flat sheath are equally spaced, and the number of openings is an even number.
8. The flat sheath suture anchor of claim 1, wherein each flat sheath of the threaded suture is of an axisymmetric configuration.
9. The flat sheath suture anchor of claim 1, wherein the first flat sheath is fixed or slidable relative to the suture at a central location.
10. An implant device comprising an impactor and the flat sheath suture anchor of any one of claims 1 to 9, the impactor ejecting the flat sheath suture anchor into the pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964425.2U CN210962134U (en) | 2019-06-25 | 2019-06-25 | Flat sheath suture anchor and implant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964425.2U CN210962134U (en) | 2019-06-25 | 2019-06-25 | Flat sheath suture anchor and implant device |
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| Publication Number | Publication Date |
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| CN210962134U true CN210962134U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920964425.2U Active CN210962134U (en) | 2019-06-25 | 2019-06-25 | Flat sheath suture anchor and implant device |
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| CN (1) | CN210962134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215246A (en) * | 2019-06-25 | 2019-09-10 | 上海利格泰生物科技有限公司 | Flat sheath suture holdfast and implanted device |
| CN113768562A (en) * | 2021-09-18 | 2021-12-10 | 运医之星(上海)科技有限公司 | Manufacturing method for round and flat variable diameter suture |
-
2019
- 2019-06-25 CN CN201920964425.2U patent/CN210962134U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215246A (en) * | 2019-06-25 | 2019-09-10 | 上海利格泰生物科技有限公司 | Flat sheath suture holdfast and implanted device |
| CN113768562A (en) * | 2021-09-18 | 2021-12-10 | 运医之星(上海)科技有限公司 | Manufacturing method for round and flat variable diameter suture |
| CN113768562B (en) * | 2021-09-18 | 2024-03-19 | 运医之星(上海)科技有限公司 | Manufacturing method for round and flat reducing suture line |
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Address after: Room 301, building 1, 508 Tianchen Road, Qingpu District, Shanghai, 201712 Patentee after: Shanghai Ligetai Biotechnology Co.,Ltd. Address before: Room 301, building 1, 508 Tianchen Road, Qingpu District, Shanghai, 201712 Patentee before: SHANGHAI LIGETAI BIOLOGICAL TECHNOLOGY Co.,Ltd. |