Manufacturing method of full-suture external row anchor and full-suture external row anchor

Abstract

The present invention relates to a method for manufacturing a full-suture outer-row anchor, a full-suture outer-row anchor and a method for using the same, and belongs to the technical field of medical devices. The full-suture outer-row anchor manufactured by the manufacturing method uses a traction line with a pre-built-in locking knot. During surgery, the traction line is used to introduce the inner row of sutures into the full-suture nail body, that is, the inner row of sutures are introduced into the full-suture nail body along the original path of the traction line in the nail body, thereby solving the technical problem that the inner row of sutures are difficult to introduce into the full-suture outer-row anchor. In addition, the original path of the traction line can be used to form a knot of the inner row of sutures, thereby achieving a technical effect of knot-free. The method for using the full-suture outer-row anchor can effectively prevent the occurrence of situations such as slippage or disintegration of the inner row of nail sutures by an operation mode of implanting first and then guiding the wire, thereby ensuring the feasibility of the surgical operation. The self-locking knot structure is formed by unidirectional tightening, and the operation is more convenient and the knot shape is more reliable, thereby providing reliable support for soft tissue repair and fixation.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and particularly relates to a manufacturing method of a full-suture outer-row anchor and the full-suture outer-row anchor. Background Art

[0002] Wire anchors are important tools in bone and joint surgery. Their main function is to fix soft tissues such as ligaments or tendons to bone tissue to form a reliable bone fixation point, thereby providing stable support.

[0003] According to the different functions of the wire anchors, they can be divided into inner row nails, outer row nails and individually fixed anchors. The inner row nails usually have their own sutures. After being firmly connected to the bone through the anchors, the free ends of the sutures are passed through the outer row nails and fixed to the bone. The outer row nails usually do not have their own sutures. The surgical effect is achieved by introducing the inner row nail sutures and fixing them in the bone canal. After the individually fixed anchors are implanted in the bone canal, the sutures they carry are used to tie or surround the soft tissue to achieve tissue fixation.

[0004] The full suture anchor is a type of anchor with a wire. It is characterized by the fact that the full suture anchor is connected to the suture by a flexible suture anchor instead of a rigid material anchor. After being implanted into the bone canal, the suture anchor is deformed and expanded by tightening the suture to form a firm connection with the bone. Its advantages are that the suture anchor is small in size, has a small amount of bone removal, does not extensively damage the bone joint surface, is soft in texture, avoids accidental damage to surrounding tissues, and does not interfere with medical imaging examinations.

[0005] The current full-suture anchor products are mainly inner row anchors and single fixed anchors, and the technology of full-suture anchors applied to the field of external row fixation has not yet been disclosed. The main reasons are: ① It is difficult to introduce the sutures carried by the inner row fixed anchors into the flexible outer row full-suture anchors during surgery. The full-suture anchors are easy to detach from the inserter or deform or even fall apart, affecting the implantation operation and fixation effect; ② After the external row fixation is completed, the ends of the sutures will be cut off, the sutures are unilaterally stressed and the connection with the full-suture anchor is weak. If there is no strong knot structure, it is easy to slip at the knot after stress, resulting in failure of the operation; ③ If the final fixation is achieved by knotting, on the one hand, the knotting process under arthroscopy is complicated and has high requirements for the doctor's operating experience; on the other hand, the location of the knot is often on the bone surface, which is a certain distance away from the full-suture anchor in the bone canal, which will cause the knot to be unstable and the anchor to be loose.

[0006] Therefore, a method for making a full-suture outer-row anchor that is knot-free, firmly fixed, safe and convenient to operate, a full-suture outer-row anchor and a method for using the same are urgently needed. Summary of the invention

[0007] The present invention provides a method for manufacturing a full-suture outer-row anchor, a full-suture outer-row anchor and a use method thereof, so as to solve the technical problem in the prior art that the full-suture anchor cannot be used as an outer-row anchor to fix the suture.

[0008] The present invention is achieved through the following technical solutions: a method for manufacturing a full-suture outer row anchor, comprising:

[0009] Step 1, preparing a full suture nail body, a first traction line and a second traction line, wherein the full suture nail body is a U-shaped circular tube, including a first tube arm and a second tube arm;

[0010] Step 2, respectively winding the first traction line and the second traction line in the full suture nail body, so that the first traction line and the second traction line form a first wire loop and a second wire loop in the full suture nail body, respectively, the first wire loop and the second wire loop are inserted into each other to form a locking knot, and then the two ends of the first traction line and the second traction line are led out of the tube through the tube openings of the first tube arm and the second tube arm.

[0011] In order to better implement the present invention, when winding the first traction wire in step 2, the middle part of the first traction wire is led out of the tube from one side of the first tube arm to form the first wire loop, and the two free ends of the first traction wire are led out of the tube from the second tube arm to connect the inner row of nails and sutures.

[0012] In order to better implement the present invention, when winding the second traction line in step 2, one end of the second traction line enters the tube from the first tube arm and is led out of the tube by the second tube arm, then enters the tube from one side of the first tube arm and bypasses the second traction line to form the second wire loop, then is led out of the tube from one side of the first tube arm and passes through the second wire loop, so that the first wire loop and the second wire loop form the locking knot.

[0013] In order to better implement the present invention, in step 2, the first traction line and the second traction line both include a traction end and a free end, the traction end of the first traction line is led out of the tube through the tube mouth of the second tube arm, the free end of the first traction line is led out of the tube through the tube mouth of the second tube arm or leads out of the tube through the tube wall on one side of the second tube arm, the traction end of the second traction line passes through one side of the first tube arm to lead out of the tube and then passes through the second wire loop, the free end of the second traction line is led out of the tube through the tube mouth of the first tube arm, and the traction ends of the first traction line and the second traction line are both provided with buckles for connecting inner row nails and sutures.

[0014] In order to better implement the present invention, the full suture nail body is woven from soft materials, and the first tube arm and the second tube arm of the full suture nail body both have seams that allow the first traction line and the second traction line to pass through.

[0015] A full suture outer row anchor is manufactured by the manufacturing method.

[0016] A method for using a full-suture external row anchor, comprising:

[0017] Step 1, preparing the full suture outer row anchor and inserter;

[0018] Step 2, embedding the U-shaped section of the full-suture outer row anchor into the front end of the inserter, using the inserter to implant the full-suture outer row anchor into the bone canal, and withdrawing the inserter;

[0019] Step 3, connecting the free end of the inner row of nails with the loop of the first traction line, pulling the free end of the first traction line to introduce the inner row of nails into the full suture nail body of the full suture outer row anchor and replace the position of the first traction line to form a new first line loop, tightening the free end of the inner row of nails until the inner row of nails between the inner row of nails and the full suture nail body are stretched straight;

[0020] Step 4, continue to connect the free end of the inner row of sutures with the loop of the second traction line, pull the free end of the second traction line to reintroduce the inner row of sutures into the full suture body and replace the position of the second traction line to form a new second loop, so that the first loop and the second loop formed by the inner row anchor sutures are intertwined to form a new locking knot, stretch the free end of the inner row of sutures until the locking knot formed by the first loop and the second loop is completely locked, cut off the excess part of the inner row of sutures, and complete the fixation of the outer row of anchors of the full suture.

[0021] In order to better implement the present invention, a U-shaped groove is provided at the front end of the inserter.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The manufacturing method of the full-suture outer-row anchor provided by the present invention comprises step 1, preparing a full-suture nail body, a first traction line and a second traction line, wherein the full-suture nail body is a U-shaped circular tube, comprising a first tube arm and a second tube arm; step 2, winding the first traction line and the second traction line in the full-suture nail body respectively, so that the first traction line and the second traction line form a first wire loop and a second wire loop in the full-suture nail body respectively, the first wire loop and the second wire loop are inserted into each other to form a locking knot, and then the two ends of the first traction line and the second traction line are led out of the tube through the tube openings of the first tube arm and the second tube arm. The full-suture outer-row anchor manufactured by the method uses a traction line with a pre-built-in locking knot, and the locking knot formed by the traction line can be quickly replaced with the inner-row nail suture during surgery, thereby eliminating the knotting step during surgery, simplifying the surgical operation, and saving surgical time.

[0024] The present invention also provides a method for using a full-suture outer row anchor, which can effectively prevent the inner row sutures from slipping or falling apart by implanting them first and then guiding them, thereby ensuring the feasibility of the surgical operation. The one-way tightening forms a self-locking knot structure, which is more convenient to operate and has a more secure knot shape, thus providing reliable support for soft tissue repair and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the full suture outer row anchor in the present invention;

[0027] Figure 2 is a front view of the full suture outer row anchor in the present invention;

[0028] Figure 3 This is an operation process diagram of the method for using the full suture outer row anchor in the present invention;

[0029] Figure 4 is a schematic diagram of another lead-out method of the first traction line;

[0030] Figure 5 is a schematic diagram of another winding method of the first traction line and the second traction line;

[0031] Figure 6 This is a schematic diagram of the surgical procedure for full suture external row anchoring.

[0032] In the figure:

[0033] 1-full suture body; 2-first traction line; 3-second traction line; 4-first tube arm; 5-second tube arm; 6-first thread loop; 7-second thread loop; 8-inner row of sutures; 9-buckle; 10-inserter. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise specified, the meaning of "plurality" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Embodiment 1:

[0038] In this embodiment, a method for making a full suture outer row anchor is provided. Figure 1 Shown, including

[0039] Step 1, preparing a full suture nail body, a first traction line and a second traction line, wherein the full suture nail body is a U-shaped circular tube, including a first tube arm and a second tube arm;

[0040] Step 2, respectively winding the first traction line and the second traction line in the full suture nail body, so that the first traction line and the second traction line form the first thread loop and the second thread loop in the full suture nail body respectively, the first thread loop and the second thread loop are inserted into each other to form a locking knot, and then the two ends of the first traction line and the second traction line are led out of the tube through the tube openings of the first tube arm and the second tube arm.

[0041] The full-suture outer-row anchor made by this method uses the above-mentioned first traction line and second traction line to pre-build locking knots. After the full-suture outer-row anchor is placed in the bone canal, the locking knot formed by the traction line can be quickly replaced with the inner-row nail suture during the operation, that is, the first traction line and the second traction line inside the above-mentioned full-suture nail body are replaced with the inner-row nail suture in sequence, so that the inner-row nail suture forms a new locking knot structure in the above-mentioned full-suture nail body, and the sutures are tied to lock the above-mentioned locking knot. The first tube arm and the second tube arm of the above-mentioned full-suture nail body can be tightened to form a tight anchor to fix it in the bone canal, eliminating the knotting step during the operation, simplifying the surgical operation, saving surgical time, and allowing the full-suture anchor to be used in the outer row position.

[0042] In this embodiment, the full suture nail body is woven from soft material, and the first tube arm and the second tube arm of the full suture nail body both have seams that allow the first traction line and the second traction line to pass through.

[0043] Specifically in step 2, Figure 1 As shown, when the first pulling line is wound, the middle part of the first pulling line is led out of the tube from one side of the first tube arm to form the first wire loop, and the two free ends of the first pulling line are led out of the tube from the second tube arm to connect the inner row of nail sutures, that is, the middle part of the first pulling line is bent to form a double parallel wire body with one end as a bent end and the other end as a double-headed free end, and one end of the bent end is inserted into the full suture nail body from the tube opening of the second tube arm until the bent end reaches a position close to the tube opening of the first tube arm, so that the bent end of the first pulling line passes through the seam on the tube arm on one side of the first tube arm close to its tube opening to the outside of the tube and is retained for standby use. At this time, the first pulling line passes through the internal cavity of the full suture nail body and its two free ends are led out of the tube from the tube opening position of the second tube arm, thereby completing the installation of the first pulling line.

[0044] like Figure 1 As shown, in step 2, when the second pulling line is wound, one end of the second pulling line enters the tube from the first tube arm and is led out of the tube by the second tube arm, then enters the tube from one side of the first tube arm and bypasses the second pulling line to form the second wire loop, then is led out of the tube from one side of the first tube arm and passes through the second wire loop, so that the first wire loop and the second wire loop form the locking knot. At this time, the second wire loop formed by the second pulling line and the first wire loop formed by the first pulling line form the locking knot that is mutually inserted inside and outside the first tube arm, and at the same time, the part of the second pulling line located in the first tube arm is also clamped in the locking knot. When the first pulling line and the second pulling line are replaced with the inner row of nail sutures in turn, the locking knot formed by the inner row of nail sutures can be tightened to make the first tube arm and the second tube arm firmly tied together. The inner row of nail sutures are folded at the position where the first wire loop and the second wire loop are inserted, so that the direction of the pulling force changes twice, the friction resistance is increased, the locking knot is made firmer, and there is no risk of the locking knot slipping off and causing the fixation failure.

[0045] In this embodiment, Figure 1 and Figure 2As shown, in step 2, the first traction line and the second traction line both include a traction end and a free end, and the traction ends of the first traction line and the second traction line are both provided with a buckle, and the buckle is used to connect the external suture, that is, the inner row of nail suture. Specifically, the traction end of the first traction line is led out of the tube through the tube mouth of the second tube arm, and the free end of the first traction line is led out of the tube through the tube mouth of the second tube arm or leads out of the tube through the tube wall on one side of the second tube arm, and the traction end of the second traction line passes through one side of the first tube arm and then passes through the second wire ring, and the free end of the second traction line is led out of the tube through the tube mouth of the first tube arm, and the inner row of nail suture is connected to the buckle of the first traction line or the second traction line, and then the free end of the first traction line or the second traction line is pulled, so that the inner row of nail suture can be quickly placed into the full suture nail body.

[0046] In this embodiment, Figure 4 As shown, the traction end and the free end of the first traction line can be simultaneously led out of the tube from the tube opening of the second tube arm, as shown in FIG. Figure 1 As shown, it can also be arranged that the traction end of the first traction line is led out of the tube opening of the second tube arm, and the free end is led out of the tube from the seam on the tube arm on the side of the second tube arm close to the tube opening. On the other hand, Figure 5 As shown, when the first traction line and the second traction line pass through the full suture nail body, they can also pass through and enter the tube wall again at the two ends of the U-shaped section of the full suture nail body, so that the first tube arm and the second tube arm can be better brought together when knotting, thereby forming a more secure anchoring effect with the bone channel.

[0047] Embodiment 2:

[0048] In this embodiment, a full suture outer row anchor, such as Figure 1 and Figure 2 As shown, it is manufactured by the manufacturing method of the above-mentioned embodiment 1.

[0049] Embodiment 3:

[0050] In this embodiment, a method for using a full suture outer row anchor is as follows: Figure 3 and Figure 6 Shown, including

[0051] Step 1, preparing the above-mentioned full suture outer row anchor and inserter, wherein the front end of the above-mentioned inserter is provided with a U-shaped groove;

[0052] Step 2, embedding the U-shaped section of the full-suture outer row anchor into the U-shaped groove at the front end of the inserter, using the inserter to implant the full-suture outer row anchor into the bone canal, withdrawing the inserter, leaving the full suture nail body of the full-suture outer row anchor in the bone canal, and the traction ends and free ends of the first traction line and the second traction line outside the bone canal to connect the inner row suture;

[0053] Step 3, connecting the free end of the inner row of nails with the loop of the first traction line, pulling the free end of the first traction line to introduce the inner row of nails into the full suture nail body of the full suture outer row anchor and replace the position of the first traction line to form a new first line loop, while removing the first traction line, tightening the free end of the inner row of nails until the inner row of nails between the inner row of nails and the full suture nail body are stretched straight;

[0054] Step 4, continue to connect the free end of the inner row of sutures with the loop of the above-mentioned second traction line, pull the free end of the above-mentioned second traction line to reintroduce the inner row of sutures into the full suture body and replace the position of the second traction line to form a new second loop, so that the first loop and the second loop formed by the inner row anchor sutures are intertwined to form a new locking knot, and at the same time remove the above-mentioned second traction pin, stretch the free end of the inner row of sutures until the locking knot formed by the first loop and the second loop is completely locked, cut off the excess part of the inner row of sutures, and complete the fixation of the outer row of anchors of the full suture.

[0055] The method is used to fix the inner row of nails on the outer row of nails. The operation mode of implanting first and then guiding the wires can quickly replace the first traction wire and the second traction wire with the inner row of nails in sequence, so that the inner row of nails replaces the wire loop structure formed by the traction wire in the above-mentioned full suture nail body, effectively preventing the inner row of nails from slipping or falling apart, and ensuring the feasibility of the surgical operation. The inner row of nails is tightened unidirectionally to form a self-locking knot structure, and its free end is reliably fixed by locking the first wire loop and the second wire loop in sequence. The operation is more convenient and the knot shape is more secure. The above-mentioned full suture nail body and the inner row of nails are tightened and formed under tension to produce a plasticizing effect, and the fixation performance is further improved after long-term implantation, providing reliable support for soft tissue repair and fixation.

[0056] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for manufacturing a full-suture outer row anchor, characterized in that: include Step 1, preparing a full suture nail body, a first traction line and a second traction line, wherein the full suture nail body is a U-shaped circular tube, including a first tube arm and a second tube arm; Step 2, a first traction line and a second traction line are respectively wound around the full suture nail body, the first traction line and the second traction line both include a traction end and a free end, the middle part of the first traction line is bent so that the first traction line forms a double parallel line body with one end as a bent end and the other end as a double-headed free end, the bent end enters the full suture nail body from the tube mouth of the second tube arm, and is led out of the tube from one side of the first tube arm to form a first wire loop, the traction end of the second traction line enters the tube from the first tube arm, is led out of the tube by the second tube arm, and then enters from one side of the first arm The first traction line is inserted into the tube and bypasses the second traction line to form a second wire loop, and then is led out of the tube from one side of the first tube arm and passes through the first wire loop. The first wire loop and the second wire loop are intertwined to form a locking knot. The traction end of the first traction line is led out of the tube through the tube opening of the second tube arm, and the free end of the first traction line is led out of the tube through the tube opening of the second tube arm or passes through the tube wall on one side of the second tube arm to lead out of the tube. The free end of the second traction line is led out of the tube through the tube opening of the first tube arm, and the traction ends of the first traction line and the second traction line are both provided with buckles for connecting the inner row of nails and sutures.

2. A production method according to claim 1, characterized in that: The full-suture nail body is woven from soft materials, and the first tube arm and the second tube arm of the full-suture nail body both have seams that allow the first traction line and the second traction line to pass through.

3. A full suture outer row anchor, characterized in that: It is produced by the production method as claimed in claim 2.

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