Implanter capable of simultaneously implanting bone anchor, patch and suture

Abstract

Disclosed in the present invention is an implanter capable of simultaneously implanting a bone anchor, a patch and a suture, comprising: a driving rod, one end of the driving rod being a driving end fit with and inserted to a head end of a bone anchor, and a stepped winding shaft section for winding a patch being arranged on the rod wall of the driving rod; and a cannula, the cannula being sleeved on the driving rod, and one end of the cannula being able to abut against the head end surface of the bone anchor. The patch and the bone anchor are connected by means of a first suture, and second sutures used for being connected to the tendon soft tissues are further arranged on the patch. The implanter is capable of simultaneously implanting a patch, a bone anchor and a suture into a human body, then fixing the bone anchor to the bone hard tissues, and finally fixing the patch to the soft tissues by means of second sutures, so that a patch fixing step is omitted, implantation of the bone anchor, the patch and the suture can be completed by a one-time implantation operation of a driving rod, the operation steps are simplified, and the operation time of a doctor can be saved.

Description

Implanter capable of simultaneously implanting bone anchors, patches and sutures Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to an implanter capable of simultaneously implanting a bone anchor, a patch and a suture. Background Art

[0002] Rotator cuff tear is a common shoulder joint disease, which mainly involves the injury of tendon and soft tissue in the shoulder joint due to exercise. The incidence rate gradually increases with age. Rotator cuff tear is a common cause of shoulder pain, reduced range of motion and weakened function, accounting for about 60% of shoulder lesions. For rotator cuff tears that are not effectively treated with conservative treatment, arthroscopic rotator cuff patch repair has become one of the most effective treatment methods. The rotator cuff patch is mainly placed in the large area of ​​rotator cuff injury repaired by traditional surgical methods to play a scaffold role, that is, through cell recruitment and cell adhesion, it promotes cell proliferation, tissue re-healing and tendon-bone interface repair, thereby achieving the purpose of inducing and promoting rapid healing of the rotator cuff tissue injury site after rotator cuff repair.

[0003] Traditional arthroscopic rotator cuff patch repair surgery involves first using tools to secure a wired bone anchor to the bone, then securing sutures to the soft tissue, and finally inserting the patch using another tool to secure it to the bone and soft tissue. This procedure requires multiple implantation tools, making the procedure cumbersome and time-consuming, while also increasing the risk of infection.

[0004] Therefore, how to provide an implanter that can simultaneously implant bone anchors, patches and sutures to simplify surgical procedures, save surgical time and ensure the anchoring effect of bone anchors is an urgent problem that needs to be solved by those skilled in the art.

[0005] Summary of the Invention

[0006] In view of this, the present invention provides an implanter that can simultaneously implant bone anchors, patches and sutures, which can simplify surgical operation steps, save surgical time and ensure the anchoring effect of the bone anchors.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A driving rod, one end of which is adapted to be plugged into the head end of the bone anchor, and a stepped winding shaft section for winding a patch is provided on the rod wall of the driving rod;

[0009] a sleeve, the sleeve being sleeved on the driving rod, and one end of the sleeve being capable of abutting against the head end surface of the bone anchor;

[0010] The patch is connected to the bone anchor via a first suture, and the patch is further provided with a second suture for connecting to tendon soft tissue.

[0011] Through the above technical solutions, it can be seen that compared with the prior art, the present invention discloses an implanter that can simultaneously implant bone anchors, patches and sutures. When in use, the patch and the bone anchor are pre-connected by a first suture, and then the bone anchor is inserted into the driving end and the patch is flatly wound on the stage winding shaft segment. Then, the sleeve is moved to the driving end to cover the patch. This can prevent the patch from being exposed and the patch from being contaminated by external debris during the operation. The sleeve is used to limit the patch on the driving rod to prevent the patch from detaching from the driving rod. At this time, one end of the sleeve is against the head end of the bone anchor. After that, after the patch and the bone anchor enter the human body, the other end of the driving rod is rotated. At the end, the bone anchor is screwed and fixed to the bone tissue; then the sleeve is lifted upward to expose the patch, and the driving rod is pulled outward to separate the patch from the driving rod. Note that the above actions are completed in the body. During this process, on the one hand, the patch is connected to the bone anchor through the first suture. Since the bone anchor is anchored in the bone and the driving rod is withdrawn, the patch is separated from the driving rod. On the other hand, because the bone anchor is always abutted by the sleeve, the problem of the bone anchor being pulled out of the bone tissue when the driving rod is withdrawn is effectively prevented, thereby ensuring the anchoring effect of the bone anchor. Finally, the patch is unfolded and the patch is sutured to the soft tissue using the second suture, so that the patch promotes the healing of bone tissue and soft tissue.

[0012] Therefore, the implanter can implant the patch, bone anchor, and suture into the human body at the same time, then fix the bone anchor to the hard bone tissue, and finally fix the patch to the soft tissue through the second suture, eliminating the patch implantation and fixation steps, so that the implantation of the bone anchor, patch, and suture can be completed by implanting the driving rod at one time, simplifying the surgical steps and saving the doctor's operating time.

[0013] Furthermore, a locking button is provided at the other end of the sleeve, and the locking portion of the locking button contacts and locks the rod wall of the driving rod; a first card slot and a second card slot are spaced apart on the rod wall of the driving rod, and the locking portion of the locking button is engaged with the first card slot or the second card slot.

[0014] The beneficial effect of the above technical solution is that when the locking portion of the locking button engages with the first slot, the sleeve is located at the top of the drive rod, allowing the patch to be wound around the stepped winding shaft. When the locking portion of the locking button engages with the second slot, the sleeve is located at the bottom of the drive rod. At this time, the sleeve cover is located outside the patch, preventing the patch from being exposed to the drive rod. Therefore, the provision of the first and second slots on the drive rod, combined with the locking button, allows the sleeve to be fixed in position when moving up or down, facilitating quick operation by the surgeon during surgery.

[0015] Furthermore, a button housing is fixed to the other end of the sleeve, a button hole is opened on one side wall of the button housing, and the locking button includes:

[0016] A locking pressing block, wherein a sleeve hole is formed on the locking pressing block and is sleeved on the driving rod. The locking pressing block is retractably placed in the button hole. The edge of the sleeve hole serves as the locking portion, which is clamped on the wall of the first card slot or the second card slot. One side end of the locking pressing block extending from the button hole serves as a pressing end.

[0017] A spring is placed in the button hole, and one end of the spring abuts against the bottom of the button hole, and the other end abuts against the other side end of the locking pressing block opposite to the pressing end, so as to push the locking pressing block to move so that the hole is stuck on the slot wall of the first slot or the second slot.

[0018] The beneficial effect of the above technical solution is that when the cannula needs to be moved, the pressing end of the locking push block is pressed, and the edge of the sleeve hole on the locking push block disengages from the first or second slot. At this time, the spring is compressed, and the cannula can be moved. When the cannula moves to the first or second slot position, the locking push block is acted upon by the spring, and the edge of the sleeve hole is again locked in the first or second slot, thereby securing the cannula to the drive rod. The locking button has a simple structure and is easy for doctors to operate during surgery.

[0019] Furthermore, the first card slot and the second card slot are both annular slot structures.

[0020] The beneficial effect of adopting the above technical solution is that even when the sleeve rotates, the locking portion of the locking button can be locked with the first locking groove or the second locking groove.

[0021] Furthermore, the other end of the driving rod is fixedly connected to an operating handle.

[0022] The beneficial effect of adopting the above technical solution is that it is easy for doctors to operate the driving rod.

[0023] Furthermore, a placement groove for accommodating the first suture thread and the second suture thread is opened on the rod wall along its length direction.

[0024] The beneficial effect of adopting the above technical solution is that the first suture and the second suture can be hidden on the driving rod, so that the driving end and the bone anchor can cooperate better, and when the driving rod is screwed, it will not be affected by the scattered sutures entangled in the driving rod.

[0025] Furthermore, the patch is in the shape of a triangle or a rectangle or a combination of a rectangle and a triangle.

[0026] The beneficial effect of adopting the above technical solution is that the patch adopts a triangular or rectangular shape or a combination of a rectangular and a triangular shape, which is conducive to the patch being laid flat in the body.

[0027] Furthermore, when the first suture is an adjustable loop, the adjustable loop is formed by winding a suture, and includes an adjustable ring and two tensioning ends a and b for adjusting the size of the adjustable ring.

[0028] Furthermore, the two ends of the first suture are respectively the tensioning end a and the tensioning end b, and the tensioning end a forms a first coil portion after being wrapped around once, and then the tensioning end a passes through the point a1 of the loop on the first suture on the tensioning end a side and comes out through the point a2 of the loop, and the tensioning end b passes through the first coil portion and wraps around once to form a second coil portion, and then the tensioning end b passes through the point b1 of the loop on the first suture on the tensioning end b side and comes out through the point b2 of the loop, the first suture between the point a2 of the loop and the point b2 of the loop is the connecting portion connected to the bone anchor, the part where the first coil portion and the second coil portion are interlocked is connected to the patch, and the connecting portion, the first coil portion, and the second coil portion enclose the adjustable ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0031] FIG1 is a schematic structural diagram of a bone anchor implanter provided by the present invention;

[0032] FIG2 is a schematic diagram of the exploded structure of the driving rod and the bone anchor;

[0033] FIG3 is an enlarged schematic diagram of the structure of part A in FIG2 ;

[0034] FIG4 is an enlarged schematic diagram of the structure of part B in FIG2 ;

[0035] Figure 5 is a schematic structural diagram of the locking button when it is locked;

[0036] FIG6 is an expanded view of the triangular patch and bone anchor after implantation into the human body;

[0037] FIG7 is an expanded view of the rectangular patch and bone anchor after implantation into the human body;

[0038] FIG8 is an expanded view of the patch and bone anchor composed of a rectangle and a triangle after implantation into a human body;

[0039] FIG9 is a schematic diagram of a triangular patch and a bone anchor connected by an adjustable suture;

[0040] FIG10 is a schematic diagram of a rectangular patch and a bone anchor connected by an adjustable suture;

[0041] FIG11 is a schematic diagram of a patch composed of a rectangle and a triangle and a bone anchor connected by an adjustable suture;

[0042] FIG12 is a schematic structural diagram of an adjustable loop;

[0043] FIG13 is a diagram showing the connection between the adjustable loop, the bone anchor, and the patch. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] As shown in Figures 1 to 13, an embodiment of the present invention discloses an implanter capable of simultaneously implanting a bone anchor, a patch, and a suture. In this embodiment, the structure thereof includes:

[0046] A driving rod 1, one end of which is a driving end 101 adapted to be plugged into the head end of the bone anchor 2. Specifically, the head end of the bone anchor has a square hole, and the driving end is a square rod plugged into the square hole. The rod wall of the driving rod 1 is provided with a stepped winding shaft section 102 for flatly winding the patch 3;

[0047] The sleeve 4 is sleeved on the driving rod 1, and one end of the sleeve 4 can be against the head end surface of the bone anchor 2;

[0048] The patch 3 is connected to the bone anchor 2 via a first suture 71 , and the patch 3 is also provided with a second suture 72 for connecting to the tendon soft tissue.

[0049] A locking button 5 is provided at the other end of the sleeve 4, and the locking portion of the locking button 5 contacts and locks the rod wall of the driving rod 1; a first card slot 103 and a second card slot 104 are spaced apart on the rod wall of the driving rod 1, and the locking portion of the locking button 5 is engaged with the first card slot 103 or the second card slot 104.

[0050] A button housing 41 is fixed to the other end of the sleeve 4. A button hole 411 is opened on one side wall of the button housing 41. The locking button 5 includes:

[0051] The locking pressing block 51 has a sleeve hole 511 formed on the locking pressing block 51 and is sleeved on the driving rod 1. The locking pressing block 51 is retractably placed in the button hole 411. The hole edge 5111 of the sleeve hole 511 serves as a locking portion, which is engaged with the wall of the first slot 103 or the second slot 104. The end of the locking pressing block 51 extending from the button hole 411 serves as a pressing end 512.

[0052] The spring 52 is placed in the button hole 411, and one end of the spring 52 abuts against the bottom of the button hole 411, and the other end abuts against the other side end of the locking pressing block 51 opposite to the pressing end 512, so as to push the locking pressing block 51 to move, so that the hole edge 5111 is stuck on the groove wall of the first slot 103 or the second slot 104.

[0053] The first clamping groove 103 and the second clamping groove 104 are both annular groove structures.

[0054] The other end of the driving rod 1 is fixedly connected to an operating handle 6 .

[0055] In the above embodiment, a placement groove 105 for accommodating the first suture thread 71 and the second suture thread 72 is opened on the rod wall of the driving rod 1 along its length direction.

[0056] In the above embodiment, the patch 3 may be in the shape of a triangle, a rectangle, or a combination of a rectangle and a triangle.

[0057] In the above embodiment, the first suture 71 is a fixed-length suture or an adjustable loop with an adjustable length. The adjustable loop is an adjustable-length suture. When the first suture is an adjustable loop, the adjustable loop is formed by winding a single suture, including an adjustable loop and two tensioning ends a and b for adjusting the size of the adjustable loop. Adjustable-length sutures are sutures currently used by medical professionals, and their length is adjustable. Therefore, the connection distance between the bone anchor and the patch can be adjusted to better meet surgical needs.

[0058] The winding method of the adjustable loop is as follows: the two ends of the first suture 71 are respectively the tensioning end a and the tensioning end b. The tensioning end a is wrapped around once to form a first coil portion 711. Then, the tensioning end a is inserted from point a1 of the loop on the first suture 71 on the tensioning end a side and exits through point a2 of the loop. The tensioning end b is passed through the first coil portion 711 and wrapped around once to form a second coil portion 712. Then, the tensioning end b is inserted from point b1 of the loop on the first suture 71 on the tensioning end b side and exits through point b2 of the loop. The first suture 71 between point a2 and point b2 of the loop is the connecting portion 713 connected to the bone anchor 2. The part where the first coil portion 711 and the second coil portion 712 are interlocked is connected to the patch 3. The connecting portion 713, the first coil portion 711, and the second coil portion 712 form an adjustable loop 714. During use, the tensioning ends a and b are pulled to reduce the size of the first coil portion and the second coil portion, thereby reducing the size of the adjustable ring, thereby reducing the distance between the patch and the bone anchor.

[0059] As shown in FIG13 , the specific connection method of the adjustable loop to the bone anchor and the patch is as follows: a crossbeam 21 for hanging the adjustable loop is provided inside the bone anchor. Specifically, the connecting portion of the adjustable loop is hung on the crossbeam of the bone anchor, and the patch is connected at the intersection of the first coil portion and the second coil portion. When in use, the tensioning ends a and b are pulled to reduce the coils of the first coil portion and the second coil portion, thereby reducing the size of the adjustable loop, thereby adjusting the distance between the patch and the bone anchor.

[0060] When repairing a patient with a small range of tendon soft tissue damage, the specific operation process of implanting a bone anchor is as follows: pre-connect the patch and the bone anchor with the first suture, then insert the bone anchor on the driving end and flatly wrap the patch on the stage winding shaft, then move the sleeve to the driving end to cover the patch. The locking button is used to lock and fix the sleeve and the driving rod, so as to prevent the patch from being exposed and contaminated by external debris during the operation. The sleeve is also used to limit the patch on the driving rod to prevent the patch from detaching from the driving rod. At this time, one end of the sleeve is against the head end of the bone anchor. After the patch and the bone anchor enter the human body, the other end of the driving rod is rotated to screw the bone anchor to the bone tissue. Then the locking button is pressed to unlock the driving rod from the sleeve, and the driving rod is pulled outward. During this process, on the one hand, the patch is connected to the bone anchor by the first suture. Due to the anchoring of the bone anchor in the bone and the withdrawal of the driving rod, the patch is detached from the driving rod. On the other hand, because the bone anchor is always abutted by the sleeve, the problem of the bone anchor being pulled out of the bone tissue when the driving rod is withdrawn is effectively prevented, thereby ensuring the anchoring effect of the bone anchor. Finally, the patch is unfolded and sutured to the soft tissue using the second suture, so that the patch plays a role in connecting and repairing the bone tissue and soft tissue.

[0061] The implanter can implant a patch, bone anchor, and suture into the human body as a whole, then fix the bone anchor to the hard bone tissue, and finally fix the patch to the soft tissue through a second suture. This eliminates the patch implantation and fixation steps, allowing the implantation of the patch, bone anchor, and suture to be completed in one go by implanting the driving rod. The surgical steps are simplified, saving the doctor's operating time.

[0062] This implant is not only suitable for small-scale local injuries of tendon soft tissue, but can also be used simultaneously with multiple patches and bone anchors to repair large-scale damaged tissue.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0064] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An implanter capable of simultaneously implanting a bone anchor, a patch and a suture, characterized in that: include: A driving rod (1), one end of the driving rod (1) being a driving end (101) adapted to be plugged into the head end of the bone anchor (2), and a stepped winding shaft section (102) for flatly winding the patch (3) is provided on the rod wall of the driving rod (1); A sleeve (4), wherein the sleeve (4) is sleeved on the driving rod (1), and one end of the sleeve (4) can be against the head end surface of the bone anchor (2); The patch (3) is connected to the bone anchor (2) via a first suture (71), and the patch (3) is also provided with a second suture (72) for connecting to tendon soft tissue.

2. The implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to claim 1, characterized in that: A locking button (5) is provided at the other end of the sleeve (4); a first card slot (103) and a second card slot (104) are provided on the rod wall of the driving rod (1) at intervals, and a locking portion of the locking button (5) is engaged with the first card slot (103) or the second card slot (104).

3. The implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to claim 2, characterized in that: A button housing (41) is fixed to the other end of the sleeve (4), a button hole (411) is provided on one side wall of the button housing (41), and the locking button (5) comprises: A locking pressing block (51), wherein a sleeve hole (511) sleeved on the driving rod (1) is provided on the locking pressing block (51), and the locking pressing block (51) is telescopically placed in the button hole (411), and a hole edge (5111) of the sleeve hole (511) is the locking portion, which is clamped on the groove wall of the first clamping groove (103) or the second clamping groove (104), and a side end of the locking pressing block (51) extending out of the button hole (411) is a pressing end (512); A spring (52), wherein the spring (52) is placed in the button hole (411), and one end of the spring (52) abuts against the bottom of the button hole (411), and the other end abuts against the other side end of the locking pressing block (51) opposite to the pressing end (512), so as to push the locking pressing block (51) to move, so that the hole edge (5111) is stuck on the groove wall of the first groove (103) or the second groove (104).

4. An implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to any one of claims 1 to 3, characterized in that: The other end of the driving rod (1) is fixedly connected to an operating handle (6).

5. An implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to any one of claims 1 to 3, characterized in that: A placement groove (105) for accommodating the first suture thread (71) and the second suture thread (72) is provided on the rod wall of the driving rod (1) along its length direction.

6. An implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to any one of claims 1 to 3, characterized in that: The patch (3) is in the shape of a triangle or a rectangle or a combination of a rectangle and a triangle.

7. An implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to any one of claims 1 to 3, characterized in that: The first suture (71) is a fixed-length suture or an adjustable loop with adjustable length.

8. The implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to claim 7, characterized in that: When the first suture (71) is an adjustable loop, the adjustable loop is formed by winding a suture, and comprises an adjustable ring (714) and two tensioning ends a and b for adjusting the size of the adjustable ring (714).

9. The implanter capable of simultaneously implanting a bone anchor, a patch and a suture according to claim 8, characterized in that: The two ends of the first suture (71) are respectively the tensioning end a and the tensioning end b. The tensioning end a is wound around once to form a first coil portion (711). Then the tensioning end a is inserted into the loop of the first suture (71) at the tensioning end a side at point a1 and exits at point a2 of the loop. The tensioning end b passes through the first coil portion (711) and is wound around once to form a second coil portion (712). Then the tensioning end b is inserted from the first suture (71) at the tensioning end b side at point a1 and exits at point a2 of the loop. The first suture (71) is inserted into the b1 point of the loop and exits through the b2 point of the loop. The first suture line (71) between the a2 point and the b2 point of the loop is a connecting portion (713) connected to the bone anchor (2). The portion where the first coil portion (711) and the second coil portion (712) are interlocked is connected to the patch (3). The connecting portion (713), the first coil portion (711) and the second coil portion (712) enclose the adjustable ring (714).

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