Full suture anchor

By designing cross-laid rivet bands and full-suture anchors for the stitches, the problem of unstable fixation of flat-band type full-suture anchors was solved, achieving rapid prototyping and stable bone tunnel fixation.

CN121754239APending Publication Date: 2026-03-31LINGYING NEW MEDICAL TECHNOLOGY (BEIJING) CO LTD
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Patent Information

Application Number
CN202511881495.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing flat-band type fully sewn anchors have problems such as a single threading method and poor anchor clumping effect.

Method used

A fully sutured anchor was designed, including a first rivet band and sutures. The rivet band is U-shaped, and the sutures are composed of multiple line segments. The rivet band and sutures are arranged in a cross pattern to form a stable spherical fixation in the bone tunnel. The linkage effect of multiple line segments is used to improve the fixation strength.

Benefits of technology

It achieves rapid and stable fixation of the full-suture anchor within the bone tunnel, reducing the risk of anchor dislodgement and improving fixation strength and stability.

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Abstract

The full-suture anchor comprises a first rivet belt and a first suture, and the first rivet belt comprises a left side section, a right side section and a first bottom bending section which are sequentially connected. The first sewing thread comprises a left pull thread, a left first line segment, a left second line segment, a first bottom end line segment, a right first line segment and a right pull thread, the bottom end of the left pull thread is connected with the top end of the left first line segment, the top end of the left first line segment is located on the inner side of the first rivet belt, and the bottom end of the left first line segment penetrates into the left segment and then penetrates into the inner side of the first rivet belt; the top end of the left second line segment is connected with the bottom end of the left first line segment, and the bottom end of the left second line segment is connected with one end of the first bottom end line segment; the first bottom end line segment is located in the first bottom bending segment. The bottom end of the right pull line is connected with the top end of the right first line segment, the top end of the right first line segment is located on the inner side of the first rivet belt, and the bottom end of the right first line segment enters the inner side of the first rivet belt and is connected with the other end of the first bottom line segment.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a full-suture anchor. Background Technology

[0002] In recent years, suture anchor internal fixation implants have seen continuous innovation in materials and structure, leading to increasingly widespread clinical applications. All-suture anchors, as a relatively recent development in clinical application, have attracted considerable attention due to their advantages such as minimal bone removal and ease of revision.

[0003] Currently, there are roughly three types of suture anchors on the market: cylindrical, round, and flat. Cylindrical anchors have a simple structure and small size. Because the inserter used for placement into the bone canal has a pre-tensioning function, they can clump together within the bone canal beforehand, which positively impacts their fixation strength. Round suture anchors have slightly more suture threading methods, and their anchoring effect varies depending on the anchor. Flat suture anchors are compact in size, requiring minimal bone removal during implantation, significantly reducing invasiveness to bone structures such as the glenoid fossa. However, flat suture anchors suffer from limited suture threading methods and less than ideal anchor clumping, thus requiring improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a fully stitched anchor to solve the problems of the prior art.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a fully threaded anchor, comprising:

[0006] The first rivet band is U-shaped and includes a left side section, a right side section and a first bottom bend section connected in sequence.

[0007] The first seam includes a left pull thread, a left first line segment, a left second line segment, a first bottom line segment, a right first line segment, and a right pull thread connected end to end in sequence. The bottom end of the left pull thread is connected to the top end of the left first line segment. The top end of the left first line segment is located inside the first rivet band, and the bottom end passes through the inside of the left segment and then through the inside of the first rivet band. The left second line segment is located inside the first rivet band and its top end is connected to the bottom end of the left first line segment. Its bottom end is connected to one end of the first bottom line segment.

[0008] The first bottom line segment is located inside the first bottom bend segment;

[0009] The bottom end of the right-side pull wire is connected to the top end of the right-side first line segment. The top end of the right-side first line segment is located inside the first rivet band, and the bottom end passes through the inside of the right-side segment and then enters the inside of the first rivet band, and is connected to the other end of the first bottom line segment.

[0010] In one embodiment, the first stitch further includes a second right-side line segment, which is located inside the first rivet band and has its top end connected to the bottom end of the first right-side line segment, and its bottom end connected to the other end of the first bottom-side line segment.

[0011] In one embodiment, the first rivet band is a U-shape that is symmetrical about a vertical axis;

[0012] The first line segment on the left and the first line segment on the right are arranged symmetrically with respect to the vertical axis.

[0013] In one embodiment, the second line segment on the left and the second line segment on the right are arranged symmetrically with respect to the vertical axis.

[0014] In one embodiment, the length of the first line segment on the left is the same as the length of the second line segment on the left.

[0015] In one embodiment, the first line segment on the right and the second line segment on the right have the same length.

[0016] In one embodiment, the full-suture anchor includes:

[0017] The second rivet band is located inside the first rivet band and is U-shaped. The second rivet band and the first rivet band are arranged to cross each other in the circumferential direction. The second rivet band includes a front section, a rear section and a second bottom bending section connected in sequence.

[0018] The second seam includes a front pull thread, a front first line segment, a second bottom line segment, a rear first line segment, and a rear pull thread connected in sequence. The bottom end of the front pull thread is connected to the top end of the front first line segment. The top end of the front first line segment is located inside the second rivet band, and the bottom end passes through the front section and then through the inner side of the second rivet band. The bottom end of the rear pull thread is connected to the top end of the rear first line segment. The top end of the rear first line segment is located inside the first rivet band, and the bottom end passes through the rear section and then through the inner side of the first rivet band. The second bottom line segment is located within the second bottom bend section, and its two ends are connected to the bottom ends of the front first line segment and the rear first line segment, respectively.

[0019] In one embodiment, the second bottom segment is located within the first bottom bend segment.

[0020] In one embodiment, the first bottom segment is located within the second bottom bend segment.

[0021] In one embodiment, the second stitch further includes a front second line segment, which is located inside the second rivet band and has its top end connected to the bottom end of the front first line segment, and its bottom end connected to one end of the second bottom line segment.

[0022] In one embodiment, the second stitch further includes a rear second line segment, which is located inside the second rivet band and has its top end connected to the bottom end of the rear first line segment, and its bottom end connected to the other end of the second bottom line segment.

[0023] In one embodiment, the first suture further includes a first top segment, the two ends of which are respectively connected to the top of the left first segment and the top of the right first segment.

[0024] In one embodiment, the second suture further includes a top segment, the two ends of which are connected to the top of the front first segment and the top of the rear first segment, respectively. Attached Figure Description

[0025] Figure 1 and Figure 2 This is a perspective view of the first rivet band and the first seam according to an embodiment of the present invention.

[0026] Figure 3 , Figure 4 and Figure 5 This is an assembly diagram of a first rivet band, a first seam, a second rivet band, and a second seam, according to an embodiment of the present invention.

[0027] Reference numerals: 100, Full-seam anchor; 1, First rivet band; 11, Left side segment; 12, Right side segment; 13, First bottom bend segment; 2, First seam; 21, Left side pull line; 22, Left side first line segment; 23, Left side second line segment; 24, First bottom line segment; 25, Right side second line segment; 26, Right side first line segment; 27, Right side pull line; 28, First top line segment; 3, Second rivet band; 31, Front side segment; 32, Rear side segment; 33, Second bottom bend segment; 4, Second seam; 41, Front pull line; 42, Rear side second line segment; 43, Rear side first line segment; 44, Rear side pull line; Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0029] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0030] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of the essential spirit of the technical solution of the present invention.

[0031] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0032] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0033] In the following description, in order to clearly demonstrate the structure and working method of the present invention, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0034] This invention relates to a fully threaded anchor 100, such as... Figure 1 As shown, the fully sewn anchor 100 includes a first rivet band 1 and a first sewing thread 2. The first rivet band 1 is U-shaped and includes a left side segment 11, a right side segment 12, and a first bottom bend segment 13 connected in sequence. The left side segment 11 and the right side segment 12 are arranged opposite to each other along a first direction, which is... Figure 1 The left and right directions. The bottom ends of the left segment 11 and the right segment 12 are respectively connected to the two ends of the first bottom bending segment 13. The first bottom bending segment 13 is in a bent shape. It should be understood that in practical applications, the first bottom bending segment 13 may also be a straight segment, while the left segment 11 and the right segment 12 may also be in a bent state.

[0035] The first rivet segment is preferably arranged symmetrically with respect to a vertical axis, that is, the left segment 11 and the right segment 12 are arranged symmetrically with respect to the vertical axis.

[0036] The first seam 2 includes a left pull line 21, a left first line segment 22, a left second line segment 23, a first bottom line segment 24, a right second line segment 25, a right first line segment 26, and a right pull line 27 connected end to end. The left pull line 21 and the right pull line 27 are also arranged opposite each other in the left-right direction, and the left first line segment 22 and the right first line segment 26 are arranged opposite each other in the first direction, and preferably symmetrically arranged with respect to the vertical axis.

[0037] The second line segment 23 on the left and the second line segment 25 on the right are also arranged opposite each other along the first direction, preferably symmetrically arranged with respect to the vertical axis.

[0038] The bottom end of the left pull wire 21 is connected to the top end of the left first line segment 22. The top end of the left first line segment 22 is located inside the first rivet band 1, and the bottom end extends into the interior of the left section 11 by a predetermined length, and then into the interior of the first rivet band 1. The left first line segment 22 is not exposed outside the first rivet band 1. The left second line segment 23 is located inside the first rivet band 1, and its top end is connected to the bottom end of the left first line segment 22. The bottom end extends into the left section 11 and connects with the first bottom line segment 24. The left second line segment 23 is exposed inside the first rivet band 1.

[0039] The first bottom segment 24 is located inside the first bottom bend segment 13 and is not exposed outside the first rivet band 1. Of course, in other embodiments, the second left segment 23 may not be provided, and the bottom end of the first left segment 22 may be directly connected to one end of the first bottom segment 24.

[0040] The bottom end of the first line segment 26 on the right is connected to the top end of the first line segment 26 on the right. The top end of the first line segment 26 on the right is located inside the first rivet band 1, and the bottom end goes into the inside of the right segment 12 for a preset length before entering the inside of the first rivet band 1. The first line segment 26 on the right will not be exposed outside the first rivet band 1.

[0041] The second line segment 25 on the right is located inside the first rivet band 1, and its top end is connected to the bottom end of the first line segment 26 on the right, while its bottom end is connected to the other end of the first bottom line segment 24. Of course, in other embodiments, the second line segment 25 on the right may not be provided, and the bottom end of the first line segment 26 on the right may be directly connected to the other end of the first bottom line segment 24.

[0042] In use, insert the push rod into the first rivet band 1, and push the push rod to insert the threaded first rivet band 1 into the pre-set bone channel to the desired depth. First, pull the left pull line 21 or the right pull line 27 with a certain force, so that the first rivet band 1 gradually contracts into a spherical shape during the tightening process. As the left pull line 21 or the right pull line 27 is pulled, the friction force of the bone channel on the first rivet band 1 reaches its maximum value, so that the first rivet band 1 can be fixed in the bone channel. Then, remove the push rod to complete the process. The fully stitched rivet of the present invention can be quickly formed and stably formed. The right first line segment 26 is located in the right section 12, and the left first line segment 22 is located in the right section 12. When the right pull line 27 and the left pull line 21 are pulled, the top ends of the right section 12 and the left section 11 have a good fixing effect, while the bottom ends are compressed into a spherical shape, and the ball has high stability.

[0043] As a preferred embodiment, the length of the first line segment 22 on the left is the same as the length of the second line segment 23 on the left, or the length of the first line segment 26 on the right and the second line segment 25 on the right is the same, or the lengths of the first line segment 22 on the left, the second line segment 23 on the left, the first line segment 26 on the right, and the second line segment 25 on the right are all the same.

[0044] Preferably, such as Figure 2 As shown, the first seam 2 also includes a first top line segment 28. The two ends of the first top line segment 28 are connected to the top of the left first line segment 22 and the top of the right first line segment 26, respectively. That is to say, the first top line segment 28, the left first line segment 22, the left second line segment 23, the first bottom line segment 24, the right second line segment 25, and the right first line segment 26 form a loop that is connected end to end, which facilitates linkage and ball formation and increases the stability of the ball.

[0045] Preferably, such as Figure 3 As shown, the full-stitch anchor 100 includes a second rivet band 3 and a second seam 4. The second rivet band 3 and the first rivet band 1 preferably have the same shape. The second rivet band 3 is located inside the first rivet band 1 and is also U-shaped. The second rivet band 3 and the first rivet band 1 are arranged circumferentially and intersecting each other at a 90° angle. Specifically, the second rivet band 3 includes a front section 31, a rear section 32, and a second bottom bending section 33 connected in sequence.

[0046] The front section 31 and the rear section 32 are arranged opposite each other in the front-rear direction and their bottom ends are respectively connected to the two ends of the second bottom bending section 33. The first bottom bending section 13 is in a bent state, and the front section 31 and the rear section 32 can also be in a bent state.

[0047] The second seam 4 includes a front pull thread 41, a front first line segment, a front second line segment, a second bottom line segment, a rear second line segment 42, a rear first line segment 43, and a rear pull thread 44, which are connected end to end in sequence.

[0048] The bottom end of the front pull wire 41 is connected to the top end of the front first line segment. The top end of the front first line segment is located inside the second rivet band 3, and the bottom end passes through the front section 31 and then passes through the inside of the second rivet band 3 again.

[0049] The top end of the second front line segment connects to the bottom end of the first front line segment, and the bottom end passes through the front section 31 and connects to one end of the second bottom line segment. The second front line segment is exposed inside the second rivet band 3. Of course, in other embodiments, the second front line segment may not be provided, and the bottom end of the first front line segment may be directly connected to one end of the second bottom line segment.

[0050] The second bottom line segment is located within the second bottom bend segment 33.

[0051] The bottom end of the rear pull line 44 is connected to the top end of the first rear side line segment.

[0052] The top end of the first rear segment 43 is located inside the second rivet band 3, and the bottom end passes through the rear segment 32 and then passes through the inside of the first rivet band 1 again.

[0053] The top end of the second rear line segment 42 is connected to the top end of the first rear line segment 43, and the bottom end is connected to the other end of the second bottom line segment. The second rear line segment 42 is exposed inside the second rivet band 3.

[0054] As a preferred option, the second rivet band 3 is also symmetrically arranged with respect to the vertical axis. That is to say, the second rivet band 3 and the first rivet band 1 have the same shape, and the second seam 4 can also be arranged with the same shape as the first seam 2.

[0055] As a preferred embodiment, the second bottom segment is located within the first bottom bend segment 13, or the first bottom segment 24 is located within the second bottom bend segment 33, or the second bottom segment is located within the first bottom bend segment 13 and the first bottom segment 24 is also located within the second bottom bend segment 33. This creates a linkage effect between the first rivet band 1 and the second rivet band 3.

[0056] Preferably, such as Figure 4 and Figure 5 As shown, the second seam 4 also includes a second top segment, the two ends of which are connected to the top of the front first segment and the top of the rear first segment 43, respectively. The second top segment, the front first segment, the front second segment, the second bottom segment, the rear second segment 42, and the rear first segment 43 are connected end to end to form a loop.

[0057] The first rivet band 1 and the second rivet band 3 are inserted into the bone channel in an overlapping manner. The first rivet band 1 and the second rivet band 3 simultaneously form a knot in the bone channel. In addition to the force exerted by the bone channel and the pull wire on the first rivet band 1 and the second rivet band 3, there is also an interaction force between the first rivet band 1 and the second rivet band 3, which can promote the rapid knot formation of the anchor and reduce the anchor dislodgement.

[0058] When in use, first pull the left pull line 21 or the right pull line 27 separately, so that the first rivet band 1 will start to form a spherical shape. Then pull the front pull line 41 and the rear pull line 44. The anchor in the bone channel has already formed a knot, which can reduce the displacement of the first rivet band 1 and the second rivet band 3 in the bone channel before they are fully knotted, so that they can quickly reach a stable state.

[0059] The first rivet band 1, the second rivet band 3, the first seam thread, and the second seam thread are all integrally woven webbing. The first rivet band 1 and the second rivet band 3 are woven from ultra-high molecular weight polyethylene or polyester materials. The first seam thread 2 and the second seam thread 4 are woven from ultra-high molecular weight polyethylene yarn.

[0060] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0061] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0062] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A fully stitched anchor, characterized in that, include: The first rivet band is U-shaped and includes a left side section, a right side section and a first bottom bend section connected in sequence. The first seam includes a left pull thread, a left first line segment, a left second line segment, a first bottom line segment, a right first line segment, and a right pull thread connected end to end in sequence. The bottom end of the left pull thread is connected to the top end of the left first line segment. The top end of the left first line segment is located inside the first rivet band, and the bottom end passes through the inside of the left segment and then through the inside of the first rivet band. The left second line segment is located inside the first rivet band and its top end is connected to the bottom end of the left first line segment. Its bottom end is connected to one end of the first bottom line segment. The first bottom line segment is located inside the first bottom bend segment; The bottom end of the right-side pull wire is connected to the top end of the right-side first line segment. The top end of the right-side first line segment is located inside the first rivet band, and the bottom end passes through the inside of the right-side segment and then enters the inside of the first rivet band, and is connected to the other end of the first bottom line segment.

2. The fully stitched anchor according to claim 1, characterized in that, The first seam also includes a second line segment on the right side, which is located inside the first rivet band and whose top end is connected to the bottom end of the first line segment on the right side, and whose bottom end is connected to the other end of the first bottom line segment.

3. The fully stitched anchor according to claim 1, characterized in that, The first rivet band is U-shaped and symmetrical with respect to a vertical axis; The first line segment on the left and the first line segment on the right are arranged symmetrically with respect to the vertical axis.

4. The fully stitched anchor according to claim 3, characterized in that, The second line segment on the left and the second line segment on the right are arranged symmetrically with respect to the vertical axis.

5. The fully stitched anchor according to claim 1, characterized in that, The length of the first line segment on the left is the same as the length of the second line segment on the left.

6. The fully stitched anchor according to claim 1 or 5, characterized in that, The first line segment on the right and the second line segment on the right have the same length.

7. The fully stitched anchor according to claim 1, characterized in that, The full-suture anchor includes: The second rivet band is located inside the first rivet band and is U-shaped. The second rivet band and the first rivet band are arranged to cross each other in the circumferential direction. The second rivet band includes a front section, a rear section and a second bottom bending section connected in sequence. The second seam includes a front pull thread, a front first line segment, a second bottom line segment, a rear first line segment, and a rear pull thread connected in sequence. The bottom end of the front pull thread is connected to the top end of the front first line segment. The top end of the front first line segment is located inside the second rivet band, and the bottom end passes through the front section and then through the inner side of the second rivet band. The bottom end of the rear pull thread is connected to the top end of the rear first line segment. The top end of the rear first line segment is located inside the first rivet band, and the bottom end passes through the rear section and then through the inner side of the first rivet band. The second bottom line segment is located within the second bottom bend section, and its two ends are connected to the bottom ends of the front first line segment and the rear first line segment, respectively.

8. The fully stitched anchor according to claim 7, characterized in that, The second bottom segment is located within the first bottom bend segment.

9. The fully stitched anchor according to claim 7 or 8, characterized in that, The first bottom line segment is located within the second bottom bend segment.

10. The fully stitched anchor according to claim 7, characterized in that, The second seam also includes a front second line segment, which is located inside the second rivet band and whose top end is connected to the bottom end of the front first line segment, and whose bottom end is connected to one end of the second bottom line segment.

11. The fully stitched anchor according to claim 7, characterized in that, The second seam also includes a rear second line segment, which is located inside the second rivet band and whose top end is connected to the bottom end of the rear first line segment, and whose bottom end is connected to the other end of the second bottom line segment.

12. The fully stitched anchor according to claim 1, characterized in that, The first suture also includes a first top segment, the two ends of which are connected to the top of the left first segment and the top of the right first segment, respectively.

13. The fully stitched anchor according to claim 7, characterized in that, The second suture also includes a top segment, the two ends of which are connected to the top of the front first segment and the top of the rear first segment, respectively.