A suture traction device and its application method

Abstract

This invention relates to the field of medical device technology, disclosing a suture traction device and its application method. The suture traction device is used to pull the suture into the nail body of a full suture anchor assembly. The side wall of the traction box has two holes for passing the traction suture through. The traction cover has a first winding post for winding the traction suture, and the traction base has a second winding post for winding the traction suture. The base is detachably connected to the traction base and has multiple limiting posts for winding the traction suture. The limiting posts pass through the side wall of the traction base and extend into the receiving cavity. Each first winding post has limiting posts on both sides. This invention significantly reduces the frictional resistance between sutures at the pre-placed knot and between the suture and the nail body during suture traction, preventing the pre-placed knot from tightening during traction, allowing the suture to smoothly pass through the nail body, greatly reducing traction resistance, and preventing suture cuts to the surgeon during traction.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a suture traction device and its application method. Background Technology

[0002] For pre-knotted, knot-free external suture anchors, during surgery, the surgeon uses the traction sutures attached to the external suture anchor to pull the sutures of the internal anchor through the external suture anchor, bridging the internal and external anchors. Then, the external suture anchor is implanted on the outside of the rotator cuff stop. Since the pre-knotted structure is already in place, no knotting is required; the sutures are tightened directly to achieve rotator cuff reconstruction.

[0003] In the actual process of guiding the inner row of sutures into the outer row of anchors, the complex winding path of the traction thread around the pre-placed knots on the outer row of anchors results in significant frictional resistance between the traction thread and the outer row of anchors, which can easily lead to suture injuries or cuts to the surgeon's fingers. Furthermore, when the traction thread is pulled by external force, the pre-placed knots are affected by frictional resistance, which can cause the pre-placed knots to tighten before the suture is introduced into the outer row of anchors, resulting in traction operation failure and product scrap.

[0004] Therefore, there is an urgent need for a suture traction device and its application method to solve the aforementioned problems. Summary of the Invention

[0005] Based on the above, the purpose of this invention is to provide a suture traction device and its application method, which greatly reduces the frictional resistance between sutures at the pre-placed knot and between the suture and the nail body during the traction process, prevents the pre-placed knot from tightening during traction, allows the traction thread to smoothly pull the suture through the nail body, greatly reduces traction resistance, and avoids suture cuts to the surgeon during traction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] On one hand, a suture traction device is provided for pulling a suture into a full suture anchor assembly, the full suture anchor assembly including an inserter and full suture external anchors, the full suture external anchors including a nail body and a traction wire, the traction wire passing through the nail body; the nail body is installed at the implantation end of the inserter; characterized in that the suture traction device includes:

[0008] The traction box, the nail body and part of the inserter are installed in the receiving cavity of the traction box, the side wall of the traction box is provided with two routing holes for passing through the traction line, the traction box includes a detachably connected traction cover and traction bottom shell, the traction cover is provided with a first winding post for winding the traction line, and the traction bottom shell is provided with a second winding post for winding the traction line.

[0009] The base is detachably connected to the traction base shell. The base is provided with a plurality of limiting posts for winding the traction line. The limiting posts pass through the side wall of the traction base shell and extend into the receiving cavity. Each of the first winding posts is provided with the limiting posts on both sides.

[0010] As a preferred technical solution of a suture traction device, the suture traction device further includes a fastener, which is detachably installed in the traction base shell. The insertion end of the inserter is provided with a first U-shaped groove, and the nail body is installed in the first U-shaped groove. The nail body is perpendicular to the insertion end of the inserter. The fastener is provided with a second U-shaped groove, and the opposite sidewalls of the second U-shaped groove are provided with arc-shaped grooves. The insertion end of the inserter is connected to the arc-shaped groove, and the bottom of the second U-shaped groove blocks the opening of the first U-shaped groove.

[0011] As a preferred technical solution for a suture traction device, the bottom of the second U-shaped groove is provided with a sealing protrusion, which can be embedded in the opening of the first U-shaped groove.

[0012] As a preferred technical solution for a suture traction device, the fastener is T-shaped, and the inner wall of the traction base is provided with a first limiting groove, and the fastener is embedded in the first limiting groove.

[0013] As a preferred technical solution of a suture traction device, the inner wall of the traction base is provided with a second limiting groove extending along a first direction, the nail body is embedded in the second limiting groove, and the side wall of the second limiting groove is provided with a clearance hole, the clearance hole being located on both sides of the suture hole of the nail body along the second direction.

[0014] As a preferred technical solution for a suture traction device, the traction cover is provided with at least two first winding posts, and the at least two first winding posts are located on both sides of the suture hole of the nail body along the second direction.

[0015] As a preferred technical solution of a suture traction device, the inner wall of the traction base is provided with a third limiting groove extending in the second direction, the inner wall of the traction cover is provided with a fourth limiting groove extending in the second direction, and part of the inserter is embedded in the third limiting groove.

[0016] As a preferred embodiment of a suture traction device, the traction base is provided with a first limiting hole, into which the first winding post can extend; and / or

[0017] The traction cover is provided with a second limiting hole, and the second winding post can extend into the second limiting hole.

[0018] On the other hand, a method for applying a suture traction device is provided. This method includes a suture traction device assembly method, which is used to assemble the suture traction device described in any of the above claims. The suture traction device assembly method includes the following steps:

[0019] S11. Install the full-seam anchor assembly inside the traction base;

[0020] S12. Connect the base to the traction bottom shell, wrap the pre-set knot of the traction line around the limiting post to form a first loop, wrap the pre-set knot of the traction line around the second winding post to form a second loop, and the two ends of the traction line are respectively passed through two wiring holes.

[0021] S13. Connect the traction cover to the traction base, remove the base so that the first thread is wrapped around the first winding post, and wrap the wireless loop end of the traction thread around the handle of the inserter to complete the assembly of the suture traction device.

[0022] As a preferred technical solution for the application method of a suture pulling device, the application method of the suture pulling device further includes a method of using the suture pulling device, wherein the method of using the suture pulling device is used to assemble the suture onto the full suture anchor assembly within the suture pulling device; the method of using the suture pulling device includes the following steps:

[0023] S21. Take out the suture traction device assembled in step S13, pass the free end of the suture through the threaded loop end of the traction thread, remove the non-threaded loop end of the traction thread from the handle of the inserter and pull it until the suture is pulled through one thread hole into the suture traction device and out through another thread hole.

[0024] S22. Open the traction cover, adjust the first wire loop to the tightened state, remove the second wire loop from the second winding post, and adjust the length of the second wire loop to hang on the handle of the inserter.

[0025] S23. Disassemble the traction base shell and complete the assembly of the suture onto the full suture anchor assembly inside the suture traction device.

[0026] The beneficial effects of this invention are as follows:

[0027] This invention provides a suture traction device and its application method. In use, the full suture anchor assembly is installed inside the traction base; the base is connected to the traction base; a pre-placed knot of the traction thread is wound around a limiting post to form a first loop; the pre-placed knot of the traction thread is wound around a second winding post to form a second loop; and both ends of the traction thread are respectively passed through two thread holes; the traction cover is connected to the traction base; the base is disassembled so that the first thread is wound around the first winding post; the non-loop end of the traction thread is wound around the handle of the inserter, completing the assembly of the suture traction device. In this invention, because the pre-placed knot of the traction thread forms a first loop around the limiting post, after assembling the traction cover, the first thread is wound around the first winding post, assisted by the limiting post on the base; and the pre-placed knot of the traction thread is wound around the second winding post to form a second loop. In this embodiment, the first and second winding posts are used for the path arrangement of the traction suture. Before the traction suture is pulled, the traction suture is only passed through the nail body and is not directly wrapped around the side wall of the nail body. This greatly reduces the frictional resistance between the sutures at the pre-placed knots and between the suture and the nail body during the traction process. This prevents the pre-placed knots from tightening during the traction process, allowing the traction suture to be smoothly pulled through the nail body, greatly reducing the traction resistance and avoiding suture cuts to the surgeon during traction. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the full-seam anchor assembly installed on the seam traction device according to a specific embodiment of the present invention;

[0030] Figure 2 This is a structural schematic diagram of the fully stitched anchor assembly provided in a specific embodiment of the present invention;

[0031] Figure 3 This is an exploded view of the suture traction device provided in a specific embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the traction bottom shell provided in a specific embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the traction cover provided in a specific embodiment of the present invention;

[0034] Figure 6This is a structural schematic diagram of the fastener provided in a specific embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the fully stitched anchor assembly installed on the traction base shell according to a specific embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the connection between the traction line and the suture provided in a specific embodiment of the present invention;

[0037] Figure 9 This is one of the structural schematic diagrams of the suture traction to full suture anchor assembly provided in a specific embodiment of the present invention;

[0038] Figure 10 This is the second schematic diagram of the structure of the suture pulling to the full suture anchor assembly provided in a specific embodiment of the present invention;

[0039] Figure 11 This is a flowchart of the assembly method of the suture traction device provided in a specific embodiment of the present invention;

[0040] Figure 12 This is a flowchart illustrating the method of using the suture traction device provided in a specific embodiment of the present invention.

[0041] The markings in the image are as follows:

[0042] 10. Full-stitch anchor assembly; 101. Insertor; 1011. Handle; 102. Nail body; 103. Traction line; 1031. First suture loop; 1032. Second suture loop; 20. Suture;

[0043] 1. Traction box; 11. Cable routing hole; 12. Traction cover; 121. First winding post; 122. Fourth limiting groove; 123. Second limiting hole; 124. Buckle; 125. First lug; 126. First cable passage; 127. T-shaped hole; 13. Traction bottom shell; 131. Second winding post; 132. First limiting groove; 133. Second limiting groove; 134. Clearance hole; 135. Third limiting groove; 136. First limiting hole; 137. Slot; 138. Second lug; 139. Second cable passage; 140. Fifth limiting groove; 141. Through hole;

[0044] 2. Base; 21. Limiting post;

[0045] 3. Fasteners; 31. Second U-shaped groove; 32. Arc groove; 33. Sealing protrusion. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0047] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0050] In existing technologies, during the actual traction of the inner row of sutures, the complex winding path of the traction thread around the pre-placed knots on the outer row of suture anchors results in significant frictional resistance between the traction thread and the outer row of suture anchors, which can easily lead to suture injuries or cuts to the surgeon's fingers. Furthermore, when the traction thread is pulled by external force, the pre-placed knots are affected by frictional resistance, which can cause the pre-placed knots to tighten before the suture is introduced into the outer row of suture anchors, leading to traction operation failure and product scrap.

[0051] To solve the above problems, such as Figures 1-5As shown, this embodiment provides a suture traction device for pulling the suture 20 into the full suture anchor assembly 10. The full suture anchor assembly 10 includes an inserter 101 and full suture outer row anchors. The full suture outer row anchors include a nail body 102 and a traction line 103, with the traction line 103 passing through the nail body 102. The nail body 102 is installed at the implantation end of the inserter 101. Specifically, the suture traction device includes a traction box 1 and a base 2. The nail body 102 and a partial inserter 101 are installed in the receiving cavity of the traction box 1. The side wall of the traction box 1 is provided with two thread holes 11 for passing through the traction thread 103. The traction box 1 includes a detachably connected traction cover 12 and a traction bottom shell 13. The traction cover 12 is provided with a first winding post 121 for winding the traction thread 103, and the traction bottom shell 13 is provided with a second winding post 131 for winding the traction thread 103. The base 2 is detachably connected to the traction bottom shell 13. The base 2 is provided with a plurality of limiting posts 21 for winding the traction thread 103. The limiting posts 21 pass through the side wall of the traction bottom shell 13 and extend into the receiving cavity. Each first winding post 121 is provided with a limiting post 21 on both sides.

[0052] In use, the full-seam anchor assembly 10 is installed inside the traction base 13; the base 2 is connected to the traction base 13, the pre-set knot of the traction line 103 is wound around the limiting post 21 to form a first loop 1031, the pre-set knot of the traction line 103 is wound around the second winding post 131 to form a second loop 1032, and the two ends of the traction line 103 are respectively passed through the two thread holes 11; the traction cover 12 is connected to the traction base 13, the base 2 is removed so that the first loop 1031 is wound around the first winding post 121, and the non-loop end of the traction line 103 is wound around the handle 1011 of the inserter 101 to complete the assembly of the seamolecular traction device. In this embodiment, since the pre-set knot of the traction line 103 is wound around the limiting post 21 to form a first loop 1031, after the traction cover 12 is assembled, the first loop 1031 is wound around the first winding post 121. The limiting post 21 on the base 2 assists the first loop 1031 in being wound around the first winding post 121, and the pre-set knot of the traction line 103 is wound around the second winding post 131 to form a second loop 1032. In this embodiment, the first winding post 121 and the second winding post 131 are used for the path arrangement of the traction suture 103. Before the traction suture 20 is pulled by the traction suture 103, the traction suture 103 only passes through the nail body 102 and is not directly wrapped around the side wall of the nail body 102. This greatly reduces the frictional resistance between the sutures 20 at the pre-placed knot and between the suture 20 and the nail body 102 during the process of the traction suture 103 pulling the suture 20, thus avoiding the pre-placed knot from tightening during the traction process. This allows the traction suture 103 to smoothly pull the suture 20 through the nail body 102, greatly reducing the traction resistance and avoiding cuts to the surgeon by the suture 20 during traction.

[0053] In this embodiment, the stitch 20 is an inner row of stitches, and the nail body 102 is woven from textile thread using a weaving process. The nail body 102 is provided with holes for threading the traction line 103 or the stitch 20.

[0054] In this embodiment, as Figures 3-5 As shown, the traction cover 12 has multiple buckles 124 arranged circumferentially, and the traction base 13 has multiple slots 137 arranged circumferentially. The buckles 124 and slots 137 correspond one-to-one, and the buckles 124 are engaged with the slots 137 to achieve a detachable connection between the traction cover 12 and the traction base 13, forming the traction box 1. In this embodiment, there are four buckles 124 and four slots 137.

[0055] Preferably, the traction cover 12 has four first lugs 125 at its four corners for easy gripping by the surgeon when opening the cover. The traction base 13 has two second lugs 138 on its outer side for easy gripping by the surgeon when opening the cover. The two long sides of the traction cover 12 have first thread passages 126, and the two long sides of the traction base 13 have second thread passages 139. After the traction base 13 is connected to the traction cover 12, the first thread passages 126 and the second thread passages 139 are joined together to form a wiring hole 11.

[0056] In existing technology, the traction suture operation is performed externally. The anchor body of the full suture external row is only engaged in the U-shaped groove at the end of the inserter and is not effectively fixed. If the surgeon causes the inserter to shake significantly during the traction operation, the full suture external row anchor may shift relative to the inserter or even fall off, which not only leads to product failure but also increases the surgical risk.

[0057] To solve the above problems, in this embodiment, as follows: Figures 2-6 As shown, the suture traction device also includes a fastener 3, which is detachably installed inside the traction base 13. The implantation end of the inserter 101 is provided with a first U-shaped groove, and the nail body 102 is installed within the first U-shaped groove, perpendicular to the implantation end of the inserter 101. The fastener 3 is provided with a second U-shaped groove 31, and each of the opposite sidewalls of the second U-shaped groove 31 is provided with an arc-shaped groove 32. The implantation end of the inserter 101 is connected to the arc-shaped groove 32, and the bottom of the second U-shaped groove 31 seals the opening of the first U-shaped groove. The diameter of the arc-shaped groove 32 is the same as the diameter of the implantation end of the inserter 101, forming an interference fit with the inserter 101. This fixes the nail body 102 within the first U-shaped groove of the inserter 101, preventing the nail body 102 from falling off the inserter 101 during the process of unpacking the product or removing the inserter 101 from the traction box 1, thus avoiding product failure.

[0058] More preferably, the bottom of the second U-shaped groove 31 is provided with a sealing protrusion 33, which can be embedded in the opening of the first U-shaped groove to further seal the first U-shaped groove of the inserter 101.

[0059] In this embodiment, the fastener 3 is T-shaped, and the inner wall of the traction base 13 is provided with a first limiting groove 132. The fastener 3 is embedded in the first limiting groove 132 and is fixed in conjunction with the traction base 13, which can limit the fastener 3 from shaking within the traction base 13. In this embodiment, the traction cover 12 has a T-shaped hole 127. After the traction cover 12 and the traction base 13 are assembled, the fastener 3 is embedded in the T-shaped hole 127 for limiting the fastener 3.

[0060] Preferably, the inner wall of the traction base shell 13 is provided with a second limiting groove 133 extending along the first direction. The nail body 102 is embedded in the second limiting groove 133. The side wall of the second limiting groove 133 is provided with clearance holes 134, which are located on both sides of the nail body 102 along the second direction. The clearance holes 134 are used for the passage of the traction line 103 or the sewing thread 20 at the pre-placed knot. During the process of the traction line 103 pulling the sewing thread 20, the swaying of the anchor nail along the second direction can be restricted, improving the connection stability between the anchor nail and the inserter 101. In this embodiment, the first direction is X, the second direction is Y, and the first direction is perpendicular to the second direction.

[0061] In this embodiment, the inner wall of the traction base shell 13 is provided with a third limiting groove 135 extending in the second direction, and the inner wall of the traction cover 12 is provided with a fourth limiting groove 122 extending in the second direction. A portion of the inserter 101 is embedded between the third limiting groove 135 and the fourth limiting groove 122 for limiting the insertion of the inserter 101. Preferably, the lower end of the traction base shell 13 is provided with a protruding fifth limiting groove 140, and a portion of the inserter 101 is embedded in the fifth limiting groove 140 for limiting the insertion of the inserter 101, facilitating the operator's grip.

[0062] Preferably, the traction cover 12 is provided with at least two first winding posts 121, which are located on both sides of the nail body 102 along the second direction. Therefore, the pre-placed knot of the traction wire 103 is wound around the two first winding posts 121 so that the pre-placed knot of the traction wire 103 does not contact the side wall of the nail body 102.

[0063] In this embodiment, there are two first winding posts 121, so there are four limiting posts 21. The traction base shell 13 is provided with four through holes 141. When the base 2 is assembled with the traction base shell 13, the four limiting posts 21 are inserted into the traction box 1 through the four through holes 141. The four limiting posts 21 are used to limit the traction box 1 during assembly and to initially limit the pre-set knot path of the traction line 103.

[0064] Preferably, the traction base shell 13 is provided with a first limiting hole 136, and the first winding post 121 can extend into the first limiting hole 136. Therefore, there is no gap between the first winding post 121 and the inner wall of the traction base shell 13, preventing the traction line 103 or the sewing thread 20 from falling off the first winding post 121; and / or the traction cover 12 is provided with a second limiting hole 123, and the second winding post 131 can extend into the second limiting hole 123. Therefore, there is no gap between the second winding post 131 and the inner wall of the traction cover 12, preventing the traction line 103 or the sewing thread 20 from falling off the second winding post 131.

[0065] Furthermore, this embodiment also provides a method for applying the suture traction device, such as... Figure 11 As shown, the application method of the suture traction device includes a suture traction device assembly method, which is used to assemble the aforementioned suture traction device; the suture traction device assembly method includes the following steps:

[0066] S11. Install the full-suture anchor assembly 10 inside the traction base 13; wherein, the nail body 102 with the traction line 103 is placed into the first U-shaped groove of the inserter 101, and the fastener 3 is installed at the implantation end of the inserter 101 to prevent the nail body 102 from falling off the inserter 101.

[0067] S12, such as Figure 7 As shown, the base 2 is connected to the traction housing 13. The pre-set knot of the traction wire 103 is wound around the limiting post 21 to form a first loop 1031. The pre-set knot of the traction wire 103 is wound around the second winding post 131 to form a second loop 1032. Both ends of the traction wire 103 are respectively passed through two wiring holes 11. The traction box 1 is placed on the base 2, so that the limiting post 21 on the base 2 passes through the through hole 141 on the traction housing 13 and extends into the receiving cavity of the traction box 1. Then, the part in step S11 with the tight The inserter 101 of the fastener 3 is embedded in the first limiting groove 132 and the third limiting groove 135 of the traction bottom shell 13. The nail body 102 with the traction wire 103 exposed at the outer end of the fastener 3 is tucked into the second limiting groove 133 of the traction box 1. The pre-set knot of the traction wire 103 is wound around the limiting post 21 to form a first wire loop 1031. The pre-set knot of the traction wire 103 is wound around the second winding post 131 to form a second wire loop 1032. The two ends of the traction wire 103 are respectively placed in the two second wire passages 139.

[0068] S13. Connect the traction cover 12 to the traction base 13, and remove the base 2 so that the first suture loop 1031 is wound around the first winding post 121. The first suture loop 1031 is indirectly wound around the first winding post 121 by the limiting post 21 on the base 2, to prevent the first suture loop 1031 from having no reference position to be wound when the traction cover 12 is not installed. Wrap the non-loop end of the traction thread 103 around the handle 1011 of the inserter 101 to complete the assembly of the suture traction device. During the operation, the sample obtained by the surgeon does not include the base 2.

[0069] Furthermore, such as Figure 12 As shown, the application method of the suture traction device also includes a method for using the suture traction device, which is used to assemble the suture 20 onto the full suture anchor assembly 10 within the suture traction device; the method for using the suture traction device includes the following steps:

[0070] S21, such as Figure 8 and Figure 9 As shown, the suture traction device assembled in step S13 is taken out. One end of the suture 20 is passed through the suture loop of the traction line 103. The non-suture loop end of the traction line 103 is removed from the handle 1011 of the inserter 101 and pulled until the suture 20 is pulled through one thread hole 11 into the suture traction device and out through another thread hole 11. The full suture anchor assembly 10 with the suture traction device is taken out of the packaging. The free end of the suture 20 with the inner row of anchors that has been implanted into the human body is passed through the suture loop of the traction line 103. The non-suture loop end of the traction line 103 is removed from the handle 1011 of the inserter 101 and pulled until the suture 20 is pulled into the traction box 1 and out through the thread hole 11 on the other side.

[0071] S22, such as Figure 10 As shown, open the traction cover 12. At this time, the first wire loop 1031 automatically disengages from the first winding post 121, making it easy to adjust the first wire loop 1031 to the tightened state without manual disengagement, thus improving the convenience of operation. Then, adjust the first wire loop 1031 to the tightened state, remove the second wire loop 1032 from the second winding post 131, and adjust the length of the second wire loop 1032 to hang on the handle 1011 of the inserter 101.

[0072] S23. Disassemble the traction base shell 13 and complete the assembly of the suture 20 onto the full suture anchor assembly 10 inside the suture traction device for use in subsequent surgeries.

[0073] During the surgery, simply remove the fastener 3 from the implantation end of the inserter 101, then adjust the nail body 102 to be parallel to the implantation end of the inserter 101, finally remove the inserter 101, pull the suture 20 to tighten the pre-placed knot, and then cut off the excess suture 20 to complete the surgical procedure.

[0074] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A suture pulling device for pulling a suture (20) into a full suture anchor assembly (10), the full suture anchor assembly (10) comprising an inserter (101) and a full suture outrigger anchor, the full suture outrigger anchor comprising a shank (102) and a pull wire (103), the pull wire (103) being threaded through the shank (102); the shank (102) being mounted to an implantation end of the inserter (101), characterized in that, The suture traction device comprises: a traction box (1), the nail body (102) and part of the inserter (101) are installed in the accommodation cavity of the traction box (1), the side wall of the traction box (1) is provided with two wire holes (11) for passing the traction wire (103), the traction box (1) comprises a detachable traction cover (12) and a traction bottom shell (13), the traction cover (12) is provided with a first winding column (121) for winding the traction wire (103), the traction bottom shell (13) is provided with a second winding column (131) for winding the traction wire (103); a base (2) detachably connected to the traction bottom shell (13), the base (2) is provided with a plurality of limiting columns (21) for winding the traction wire (103), the limiting columns (21) pass through the side wall of the traction bottom shell (13) and extend into the accommodation cavity, and the limiting columns (21) are arranged on both sides of each first winding column (121); the inner wall of the traction bottom shell (13) is provided with a second limiting groove (133) extending in a first direction, the nail body (102) is embedded in the second limiting groove (133), and the side wall of the second limiting groove (133) is provided with a avoiding hole (134), the avoiding hole (134) is located on both sides of the wire hole of the nail body (102) in a second direction; the traction cover (12) is provided with at least two first winding columns (121), and the at least two first winding columns (121) are located on both sides of the wire hole of the nail body (102) in the second direction.

2. The suture retractor according to claim 1, wherein, The suture traction device further comprises a fastener (3) detachably installed in the traction bottom shell (13), the implantation end of the inserter (101) is provided with a first U-shaped groove, the nail body (102) is installed in the first U-shaped groove, the nail body (102) is perpendicular to the implantation end of the inserter (101), the fastener (3) is provided with a second U-shaped groove (31), the opposite side walls of the second U-shaped groove (31) are provided with arc-shaped grooves (32), the implantation end of the inserter (101) is connected in the arc-shaped grooves (32), and the groove bottom of the second U-shaped groove (31) blocks the opening of the first U-shaped groove.

3. The suture reeling device of claim 2, wherein, The groove bottom of the second U-shaped groove (31) is provided with a blocking protrusion (33), and the blocking protrusion (33) can be embedded in the opening of the first U-shaped groove.

4. The suture reeling device of claim 2, wherein, The fastener (3) is T-shaped, the inner wall of the traction bottom shell (13) is provided with a first limiting groove (132), and the fastener (3) is embedded in the first limiting groove (132).

5. The suture reeling device of claim 1, wherein, The inner wall of the traction bottom shell (13) is provided with a third limiting groove (135) extending in a second direction, the inner wall of the traction cover (12) is provided with a fourth limiting groove (122) extending in the second direction, and part of the inserter (101) is embedded in the third limiting groove (135).

6. The suture retractor of any of claims 1-5, wherein, The traction bottom shell (13) is provided with a first limiting hole (136), and the first winding column (121) can extend into the first limiting hole (136); and / or The traction cover (12) is provided with a second limiting hole (123), and the second winding column (131) can extend into the second limiting hole (123).

7. A method of using a suture retractor, comprising: The application method of the suture traction device includes a suture traction device assembly method, which is used for assembling the suture traction device according to any one of claims 1-6; the suture traction device assembly method includes the following steps: S11, installing the full suture anchor assembly (10) into the traction bottom shell (13); S12, connecting the base (2) to the traction bottom shell (13), winding the preset knot of the traction line (103) around the limiting column (21) to form a first wire ring (1031), winding the preset knot of the traction line (103) around the second winding column (131) to form a second wire ring (1032), and the two ends of the traction line (103) are respectively threaded through two wire holes (11); S13, connecting the traction cover (12) to the traction bottom shell (13), disassembling the base (2) so that the first wire ring (1031) is wound around the first winding column (121), and one end of the wireless ring of the traction line (103) is wound around the handle (1011) of the inserter (101), completing the assembly of the suture traction device.

8. The method of using a suture retractor according to claim 7, wherein, The application method of the suture traction device also includes a suture traction device use method, which is used for assembling the suture (20) to the full suture anchor assembly (10) in the suture traction device; the suture traction device use method includes the following steps: S21, taking out the assembled suture traction device in step S13, threading the free end of the suture (20) through one end of the wired ring of the traction line (103), and taking off the other end of the wireless ring of the traction line (103) from the handle (1011) of the inserter (101) and pulling, until the suture (20) is pulled through one of the wire holes (11) into the suture traction device, and threaded out from the other wire hole (11); S22, opening the traction cover (12), adjusting the first wire ring (1031) to a tightened state, taking off the second wire ring (1032) from the second winding column (131), and adjusting the length of the second wire ring (1032) to hang on the handle (1011) of the inserter (101); S23, disassembling the traction bottom shell (13), completing the assembly of the suture (20) to the full suture anchor assembly (10) in the suture traction device.

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