Medical anchor and connection structure of medical anchor and suture

Abstract

The present invention relates to a medical anchor and a connection structure between the medical anchor and a suture. The medical anchor comprises: a mother nail and a child nail, the child nail being axially arranged inside the mother nail, the child nail being detachably connected to the mother nail, the mother nail being provided with a first threading structure, the child nail being provided with a second threading structure, and the suture being fixed by the first threading structure and / or the second threading structure. The connection structure between the medical anchor and the suture comprises: a suture and the medical anchor. The medical anchor of the present invention reduces the number of preset positioning holes required for surgery by nesting the child nail and the mother nail, thereby reducing the difficulty of selecting the positioning holes during surgery and reducing the time for drilling the positioning holes during surgery, thereby shortening the surgery time and alleviating the patient's treatment pain.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a medical anchor and a connection structure of the medical anchor and a suture. Background Art

[0002] Existing medical anchors are commonly used implants in orthopedic surgery, used to reconnect soft tissue, ligaments, and other structures to bone. Medical anchors include knotless anchors and wire anchors. Knotless anchors allow for direct suture fixation. The suture is inserted directly into the threading hole of the knotless anchor without tying a knot. The knotless anchor, along with the threaded suture, is then screwed into a pre-set positioning hole, securing the suture in the bone. Wire anchors are suitable for re-fixing tendons and ligaments. Sutures are generally supplied with the anchor body. The wire anchor is fixed to the bone, and the free end of the suture is used to suture the tendon and ligament. After suturing, the free end of the suture needs to be fixed to the bone again, which can be achieved with the knotless anchor. Typically, knotless and wire anchors are used in conjunction, requiring two or more pre-set positioning holes in the bone. Multiple positioning holes not only prolong the surgical time and increase the difficulty of the procedure, but also cause more pain for the patient and significantly reduce the patient's recovery rate. Summary of the Invention

[0003] To solve some or all of the above problems, the present invention provides a medical anchor and a connection structure between the medical anchor and a suture, which can reduce the number of preset positioning holes and meet the technical requirements of orthopedic surgery.

[0004] A first aspect of the present invention provides a medical anchor nail, which includes: a mother nail and a child nail, the child nail is axially arranged in the mother nail, the child nail is detachably connected to the mother nail, the mother nail is provided with a first threading structure, the child nail is provided with a second threading structure, and the suture is fixed through the first threading structure and / or the second threading structure.

[0005] Furthermore, the detachable connection is a threaded connection, a snap connection, a magnetic connection, a pin connection or a key connection.

[0006] Furthermore, the mother nail is provided with a threaded hole axially passing through the mother nail for accommodating the sub-nail, the outer periphery of the sub-nail is provided with a second threaded section matching the threaded hole, and the outer periphery of the mother nail is provided with a first threaded section.

[0007] Furthermore, the first threading structure includes a first threading hole radially passing through the female nail and a first threading groove provided on the outer periphery of the female nail and connecting the first threading hole and the top end of the female nail.

[0008] Furthermore, the second threading structure includes a second threading hole radially passing through the sub-nail, a second threading groove arranged on the outer periphery of the sub-nail and connecting the second threading hole and the top end of the sub-nail, and a threading hole axially arranged in the sub-nail and connecting the second threading hole.

[0009] Furthermore, the first threading structure also includes a third threading hole provided on the mother nail, the third threading hole is axially parallel to the first threading hole, and the first threading groove simultaneously connects the first threading hole and the third threading hole; the second threading structure also includes a fourth threading hole provided on the sub-nail, the fourth threading hole is axially parallel to the second threading hole, and the second threading groove simultaneously connects the second threading hole and the fourth threading hole.

[0010] Furthermore, the top of the mother nail is provided with a first screw-in fitting structure, the bottom end of the mother nail is pointed, the top of the child nail is provided with a second screw-in fitting structure, and the bottom end of the child nail is pointed.

[0011] A second aspect of the present invention provides a connection structure for a medical anchor and a suture, comprising a suture and a group of the medical anchors, wherein the suture and the medical anchors are connected by a first connection structure and / or a second connection structure;

[0012] The first connection structure is: the suture is passed through the first threading hole and / or the third threading hole, and the sub-nail is installed into the mother nail;

[0013] The second connection structure is as follows: the suture is passed through the second threading hole and / or the fourth threading hole, and the sub-nail is installed into the mother nail.

[0014] Furthermore, the connection structure of the medical anchor and suture includes a suture and two groups of the medical anchors, wherein the suture and the two sub-nails respectively adopt the first connection structure to connect the two sub-nails; or the suture and the two mother nails respectively adopt the second connection structure to connect the two mother nails;

[0015] Alternatively, it comprises two sutures and two groups of medical anchor nails according to claim 6, each of the sutures is connected to a sub-nail using the first connection structure, and the two sutures are connected to each other; or each of the sutures is connected to a mother nail using the second connection structure, and the two sutures are connected to each other.

[0016] A third aspect of the present invention provides a connection structure for a medical anchor and a suture, comprising a suture and a group of the medical anchors, wherein the suture and the medical anchors are connected by a third connection structure and / or a fourth connection structure;

[0017] The third connection structure is as follows: the suture is simultaneously passed through the first threading hole, the third threading hole and the threaded hole, and both ends of the suture are located at the top of the female nail to fix the female nail;

[0018] The fourth connection structure is: the suture is inserted into the second threading hole, the fourth threading hole and the wire hole at the same time, the two ends of the suture are located at the top of the sub-nail, and the sub-nail is installed into the mother nail.

[0019] It can be seen from the above technical solution that the sub-nail of the medical anchor provided by the present invention can be installed in the mother nail, so that the sub-nail and the mother nail are nested with each other. In the operation of reconnecting soft tissue, ligament, etc. with bones, first, a hole is drilled on the bone to form a positioning hole; secondly, the suture is passed through the first threading structure of the mother nail, and the mother nail with the suture is installed in the above positioning hole, that is, the suture is fixed to the bone; thirdly, the free end of the suture is used to suture the soft tissue, ligament, etc., and the free end of the suture needs to be fixed for the second time after suturing; finally, the free end of the suture is passed through the second threading structure of the sub-nail, and the sub-nail with the suture is installed in the mother nail, that is, the suture is fixed to the bone for the second time. Compared with the prior art, the medical anchor of the present invention reduces the number of positioning holes used, thereby reducing the time for setting the positioning holes during surgery and alleviating the patient's treatment pain. The medical anchor of the present invention can be used in conjunction with existing anchors. For example, the existing anchor with a wire is first used to fix the suture on the bone, and the free end of the suture is used to suture soft tissue, ligament, etc. After suturing, the free end of the suture needs to be fixed for a second time, and then the free end of the suture is passed through the first threading structure of the mother nail, and the mother nail with the suture is installed in the positioning hole, that is, the suture is fixed to the bone for the second time, completing the first connection of the soft tissue, ligament, etc. to the bone; another suture is passed through the second threading structure of the sub-nail, and the sub-nail with the other suture is installed in the mother nail, that is, the other suture is fixed to the bone, and the free end of the other suture is used to suture soft tissue, ligament, etc. After suturing, the free end of the other suture needs to be fixed for a second time, and then the free end of the other suture is passed through the existing knotless anchor, and the knotless anchor fixes the other suture to the bone for the second time, completing the second connection of the soft tissue, ligament, etc. to the bone. The sutures of the two connections of the soft tissue, ligament, etc. to the bone form a stable M-shaped fixation, which is similar to the double-row fixation method of the anchor. Among them, the suture is fixed only by the first threading structure of the mother nail, and the other suture is fixed only by the second threading structure of the sub-nail. The mother nail or sub-nail of the medical anchor nail of the present invention can be used alone in a single soft tissue, ligament, etc. and bone connection operation. In the medical anchor nail of the present invention, the sub-nail can be installed in the mother nail, so the size of the mother nail is larger than the size of the sub-nail, so that the stability of the mother nail fixed in the bone is better. When encountering osteoporotic bones during surgery, the larger mother nail can be installed in the preset positioning hole first to increase the fixation strength of the osteoporotic bones, and then the sub-nail with the suture is installed in the mother nail. Among them, the suture is fixed only by the second threading structure of the sub-nail, and the mother nail provides stability for the sub-nail. The mother nail and sub-nail of the medical anchor nail of the present invention cooperate with each other for use in osteoporotic bone surgery.

[0020] In addition, the medical anchor nail of the present invention has a simple structure, is easy to manufacture, is safe and stable to use, and has broad market prospects and application promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1ASchematic diagram of a three-dimensional sub-nail of a medical anchor nail according to an embodiment of the present invention;

[0022] Figure 1B This is a three-dimensional schematic diagram of a female nail of a medical anchor nail according to an embodiment of the present invention;

[0023] Figure 2A This is a schematic front view of a sub-nail of a medical anchor nail according to an embodiment of the present invention;

[0024] Figure 2B This is a schematic front view of a female nail of a medical anchor nail according to an embodiment of the present invention;

[0025] Figure 3A for Figure 2A A schematic cross-sectional view of a sub-nail of a medical anchor nail according to an embodiment of the present invention taken along plane AA;

[0026] Figure 3B for Figure 2B A schematic cross-sectional view of a female nail of a medical anchor nail according to an embodiment of the present invention, taken on plane BB;

[0027] Figure 4A Schematic diagram 1 of the connection structure of the medical anchor and suture of the medical anchor according to an embodiment of the present invention;

[0028] Figure 4B FIG2 is a second structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0029] Figure 5A FIG3 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0030] Figure 5B FIG4 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0031] Figure 6A FIG5 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0032] Figure 6B FIG6 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0033] Figure 7A FIG7 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0034] Figure 7B FIG8 is a structural schematic diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0035] Figure 8AFIG9 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0036] Figure 8B FIG10 is a structural diagram of a connection structure of a medical anchor and a suture of a medical anchor according to an embodiment of the present invention;

[0037] Figure 9A FIG11 is a structural diagram of a sixth medical anchor and suture connection structure of the medical anchor according to an embodiment of the present invention;

[0038] Figure 9B FIG12 is a structural schematic diagram of a sixth connection structure of a medical anchor and a suture according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a medical anchor and a connection structure of the medical anchor and suture of the present invention in conjunction with the accompanying drawings.

[0040] like Figure 1A and Figure 1B , which illustrates a medical anchor 100 according to an embodiment of the present invention. The medical anchor 100 comprises a mother nail 1 and a daughter nail 2. The daughter nail 2 is axially disposed within the mother nail 1 and is detachably connected to the mother nail 1. The mother nail 1 is provided with a first threading structure, and the daughter nail 2 is provided with a second threading structure. Suture 11 is secured via the first threading structure and / or the second threading structure.

[0041] The sub-nail 2 of the medical anchor 100 of the embodiment of the present invention can be installed in the mother nail 1, so that the sub-nail 2 and the mother nail 1 are nested with each other, wherein the detachable connection between the mother nail 1 and the sub-nail 2 is a threaded connection, a snap connection, a magnetic connection, a pin connection or a key connection. Figure 4B As shown, in the operation of reconnecting soft tissues, ligaments, etc. with bones, first, a hole is drilled at a selected position on the bone to form a positioning hole; secondly, the suture 11 is passed through the first threading structure of the mother nail 1, and the mother nail 1 with the suture 11 is installed in the above-mentioned positioning hole, that is, the suture 11 is fixed to the bone; furthermore, the free end of the suture 11 is used to suture the soft tissues, ligaments, etc., and after suturing, the free end of the suture 11 needs to be fixed for a second time; finally, the free end of the suture 11 is passed through the second threading structure of the sub-nail 2, and the sub-nail 2 with the suture 11 is installed in the mother nail 1, that is, the suture 11 is fixed to the bone for a second time. Similarly, as Figure 4AAs shown, the suture 11 can be first secured to the mother nail 1 using the daughter nail 2. The free end of the suture 11 is then used to suture soft tissue, ligaments, etc. After suturing, the free end of the suture 11 is passed through the first threading structure of the mother nail 1. The mother nail 1, with the daughter nail 2 and suture 11, is then installed in the aforementioned positioning hole. Compared to the prior art, the medical anchor 100 of the present invention reduces the number of positioning holes used, thereby reducing the time required to set the positioning holes during surgery and alleviating the patient's pain during treatment.

[0042] The medical anchor 100 of the present invention can be used in conjunction with existing anchors, for example: first use the existing wire anchor to fix the suture 11 on the bone, and the free end of the suture 11 is used to suture soft tissue, ligaments, etc. After suturing, the free end of the suture 11 needs to be fixed for a second time, and then the free end of the suture 11 is passed through the first threading structure of the mother nail 1, and the mother nail 1 with the suture 11 is installed in the positioning hole, that is, the suture 11 is fixed to the bone for the second time, completing the first connection between the soft tissue, ligaments, etc. and the bone; another suture 11 is passed through the second threading structure of the sub-nail 2, and the sub-nail 2 with the other suture 11 is installed in the mother nail 1, that is, the other suture 11 is fixed to the bone, and the free end of the other suture 11 is used to suture soft tissue, ligaments, etc. After suturing, the free end of the other suture 11 needs to be fixed for a second time, and then the other suture 11 is fixed to the bone. The free end of the anchor is passed through the existing knotless anchor, which fixes the other suture 11 to the bone for a second time, completing the second connection between the soft tissue, ligament, etc. and the bone. The sutures 11 connecting the soft tissue, ligament, etc. and the bone twice form a stable M-shaped fixation. Among them, the suture 11 is fixed only by the first threading structure of the mother nail, and the other suture 11 is fixed only by the second threading structure of the daughter nail. The mother nail 1 or the daughter nail 2 of the medical anchor 100 of the present invention can be used in a single soft tissue, ligament, etc. and bone connection surgery.

[0043] In the medical anchor 100 of the present invention, the sub-nail 2 can be installed within the mother nail 1. Therefore, the mother nail 1 is larger than the sub-nail 2, thereby providing greater stability in the fixation of the mother nail 1 to the bone. When encountering osteoporotic bones during surgery, the larger mother nail 1 can be first installed in a pre-set positioning hole to improve the fixation strength of the osteoporotic bone. The sub-nail 2 with suture 11 can then be installed within the mother nail 1. The suture 11 is secured only through the second threading structure of the sub-nail 2, while the mother nail 1 provides stability for the sub-nail 2. The mother nail 1 and sub-nail 2 of the medical anchor 100 of the present invention cooperate with each other for use in osteoporotic bone surgery.

[0044] The medical anchor 100 of the aforementioned embodiment can achieve multiple surgical objectives through the flexible use of the mother nail 1 and the daughter nail 2, thereby improving surgical convenience. The medical anchor 100 of the present invention can be used in a single or multiple sets, minimizing damage to the bone, alleviating the patient's pain during treatment, and facilitating a rapid postoperative recovery.

[0045] like Figure 2A 、 Figure 2B and Figure 3A 、 Figure 3B As shown, the mother nail 1 of the medical anchor 100 of the embodiment of the present invention is provided with a threaded hole 5 extending axially through the mother nail 1 for accommodating a sub-nail 2. The outer periphery of the sub-nail 2 is provided with a second threaded section 12 that cooperates with the threaded hole 5, and the outer periphery of the mother nail 1 is provided with a first threaded section 13 for securing it within the positioning hole. In other words, the mother nail 1 and sub-nail 2 are connected by a thread. The suture 11 in the above embodiment is installed in the mother nail 1 through the sub-nail 2 after suturing, that is, the suture 11 is fixed to the bone for a second time. The tightness of the suture 11 can then be further fine-tuned by adjusting the depth of the sub-nail 2 screwed into the mother nail 1 to achieve the optimal tightness of the suture 11 during surgery, thereby reducing surgical errors caused by individual differences among surgeons.

[0046] In this embodiment, the first threading structure of the female nail 1 includes a first threading hole 10 and a first threading groove 4. The first threading hole 10 radially extends through the female nail 1, and the suture 11 passes through the first threading hole 10, that is, the suture 11 is connected to the female nail 1. When the female nail 1 is fixed in the bone, the suture 11 is also fixed in the bone. The first threading groove 4 is provided on the first threaded section 13 on the outer periphery of the female nail 1. The first threading groove 4 connects the first threading hole 10 with the top of the female nail 1. After passing through the first threading hole 10, the suture 11 can enter the first threading groove 4. When the female nail 1 is screwed into the positioning hole, the first threaded section 13 is prevented from cutting the suture 11. In another unimplemented embodiment, the suture 11 after suturing passes through the first wire groove 4, the first threading hole 10 and the threaded hole 5 of the mother nail 1 in sequence, and the mother nail 1 with the suture 11 is installed in the above-mentioned positioning hole, that is, the suture 11 is fixed on the bone, and then the suture 11 is tightened to adjust the tightness of the suture 11, and then the sub-nail 2 is installed in the mother nail 1. The suture 11 is squeezed and fixed by the sub-nail 2, and the tightness of the suture 11 can be adjusted to achieve the best effect of the tightness of the suture 11 during surgery.

[0047] In this embodiment, the second threading structure of the sub-nail 2 includes a second threading hole 9, a second threading slot 7, and a threading hole 8. The structures of the second threading hole 9 and second threading slot 7 are identical to the first threading hole 10 and first threading slot 4 of the mother nail 1 and are therefore not described in detail here. Threading hole 8 is axially disposed within the sub-nail 2 and communicates with the second threading hole 9. Threading hole 8 provides an alternative path for the suture 11 to pass through the sub-nail 2 without being cut by the second threaded segment 12.

[0048] The first threading structure also includes a third threading hole 3 provided on the mother nail 1, which is axially parallel to the first threading hole 10. A first threading slot 4 connects the first and third threading holes 10 and 3. Similarly, the second threading structure also includes a fourth threading hole 6 provided on the daughter nail 2, which is axially parallel to the second threading hole 9. A second threading slot 7 connects the second and fourth threading holes 9 and 6. Multiple threading holes provide a variety of threading methods for the suture 11, meeting various surgical requirements.

[0049] In this embodiment, the top of the mother nail 1 is provided with a first screw-in fitting structure 14, which can cooperate with the installation tool to facilitate the installation of the mother nail 1 in the positioning hole. The first screw-in fitting structure 14 can be a straight line, a cross or a hexagon, etc. The bottom end of the mother nail 1 is pointed, which can correct the position of the mother nail 1 when it enters the positioning hole for quick installation. Similarly, the top of the sub-nail 2 is provided with a second screw-in fitting structure 15, which can cooperate with the installation tool to facilitate the installation of the sub-nail 2 in the positioning hole. The second screw-in fitting structure 15 can be a straight line, a cross or a hexagon, etc. The bottom end of the sub-nail 2 is pointed, which can correct the position of the sub-nail 2 when it enters the mother nail 1 for quick installation.

[0050] Another embodiment of the present invention provides a connection structure for a medical anchor and a suture. The connection structure includes a suture 11 and a set of medical anchors 100 according to the above embodiment. A first connection structure and / or a second connection structure are used between the suture 11 and the medical anchors 100. The first connection structure involves the suture 11 being passed through the first threading hole 10 and / or the third threading hole 3 to install the sub-nail 2 into the mother nail 1. The second connection structure involves the suture 11 being passed through the second threading hole 9 and / or the fourth threading hole 6 to install the sub-nail 2 into the mother nail 1.

[0051] like Figure 4BAs shown, in the operation of reconnecting soft tissues, ligaments, etc. with bones, first, a hole is drilled at a selected position on the bone to form a positioning hole; secondly, the suture 11 is passed through the first threading structure of the mother nail 1 (the first threading hole 10 or the third threading hole 3), and the mother nail 1 with the suture 11 is installed in the above-mentioned positioning hole, that is, the suture 11 is fixed on the bone; furthermore, the free end of the suture 11 is used to suture the soft tissues, ligaments, etc., and the free end of the suture 11 needs to be fixed for the second time after suturing; finally, the free end of the suture 11 is passed through the second threading structure of the sub-nail 2 (the second threading hole 9 or the fourth threading hole 6), and the sub-nail 2 with the suture 11 is installed in the mother nail 1, that is, the suture 11 is fixed to the bone for the second time. Similarly, as Figure 4A As shown, the sub-nail 2 can be used to fix the suture 11 in the mother nail 1 first, and the free end of the suture 11 is used to suture soft tissues, ligaments, etc. After suturing, the free end of the suture 11 passes through the first threading structure of the mother nail 1 (the first threading hole 10 or the third threading hole 3), and then the mother nail 1 with the sub-nail 2 and suture 11 is installed in the above-mentioned positioning hole. The suture 11, mother nail 1 and sub-nail 2 in the connecting structure of the embodiment of the present invention cooperate with each other to simplify the surgical process and improve surgical flexibility. When the bones during surgery are small, reducing the number of positioning holes plays a decisive role, solving the important problem of small bones being difficult to select positions and difficult to drill holes, and reducing the difficulty of small bone-related surgeries.

[0052] like Figure 5B As shown, in the above operation, the suture 11 is passed through the first threading structure (the first threading hole 10 or the third threading hole 3) of the female nail 1, and the female nail 1 with the suture 11 is installed in the above positioning hole, that is, the suture 11 is fixed to the bone. Or, as Figure 5A As shown, the suture 11 is passed through the second threading structure (the second threading hole 9 or the fourth threading hole 6) of the sub-nail 2, and the sub-nail 2 with the suture 11 is installed in the mother nail 1, that is, the suture 11 is fixed to the bone.

[0053] like Figure 6B As shown, in the above operation, the suture 11 is passed through the first threading hole 10 and the third threading hole 3 of the female nail 1 in sequence, and the female nail 1 with the suture 11 is installed in the above positioning hole, that is, the suture 11 is fixed to the bone. Or, as Figure 6A As shown, the suture 11 is sequentially passed through the second threading hole 9 and the fourth threading hole 6 of the sub-nail 2, and the sub-nail 2 with the suture 11 is installed in the mother nail 1, that is, the suture 11 is fixed to the bone. In this embodiment, the two ends of the suture 11 are respectively passed through the two threading holes, which can not only quickly thread the suture, but also easily find the position of each end of the suture 11, and further facilitate the adjustment of the tightness of each suture 11.

[0054] The connection structure includes a suture 11 and two sets of medical anchor nails 100 of the above embodiment. The suture 11 and the two sub-nails 2 respectively adopt the first connection structure to connect the two sub-nails 2; or the suture 11 and the two mother nails 1 respectively adopt the second connection structure to connect the two mother nails 1. Figure 8B As shown, the suture 11 of this embodiment passes through the first threading hole 10 and the third threading hole 3 of the female nail 1 in sequence, and the female nail 1 is installed in the positioning hole. The suture 11 is fixed in the bone, and the free end of the suture 11 is sutured and other surgical procedures are performed. After suturing, the two ends of the suture 11 are respectively passed through the two threading holes of another female nail 1, and the other female nail 1 is installed in another positioning hole. Similarly, Figure 8A As shown, the suture 11 of this embodiment is passed through the second threading hole 9 or the fourth threading hole 6 of the sub-nail 2, and the sub-nail 2 with the suture 11 is installed in the mother nail 1. The free end of the suture 11 is then used for suturing and other surgical procedures. After suturing, the two ends of the suture 11 are passed through the two threading holes of another sub-nail 2, and the other sub-nail 2 with the suture 11 is installed in another mother nail 1. The medical anchor 100 of this embodiment adopts multiple threading methods, and the medical anchor 100 can be mixed and assembled to cope with various situations during surgery.

[0055] The connection structure includes two sutures 11 and two groups of medical anchors 100 of the above embodiment. Each suture 11 is connected to a sub-nail 2 using a first connection structure, and the two sutures 11 are connected; or each suture 11 is connected to a mother nail 1 using a second connection structure, and the two sutures 11 are connected. Figure 9B As shown, the suture 11 of this embodiment passes through the first threading hole 10 and the third threading hole 3 of the female nail 1 in sequence, and the female nail 1 is installed in the positioning hole, and the suture 11 is fixed in the bone. Another suture 11 passes through the first threading hole 10, the fixed suture 11, and the third threading hole 3 of another female nail 1 in sequence, and the two ends of the other suture 11 are adjusted to drive the tightness of the fixed suture 11, and the other female nail 1 with the other suture 11 is installed in the preset positioning hole. Similarly, as Figure 9A As shown, the suture 11 of this embodiment is sequentially passed through the second threading hole 9 and the fourth threading hole 6 of the sub-nail 2, the sub-nail 2 is installed in the mother nail 1, and the suture 11 is fixed in the bone. Another suture 11 is sequentially passed through the second threading hole 9, the fixed suture 11, and the fourth threading hole 6 of another sub-nail 2. The ends of the other suture 11 are adjusted to adjust the tightness of the fixed suture 11, and the other sub-nail 2 with the other suture 11 is installed in the mother nail 1. After the suture 11 is fully fixed, in this embodiment, the other suture 11 is inserted through the fixed suture 11 to adjust the tightness of the fixed suture 11, thereby reducing surgical errors and improving surgical stability.

[0056] The connection structure includes a suture 11 and a set of medical anchors 100 of the above embodiment, and a third connection structure and / or a fourth connection structure are used between the suture 11 and the medical anchor 100; the third connection structure is: the suture 11 is inserted into the first threading hole 10, the third threading hole 3 and the threaded hole 5 at the same time, and the two ends of the suture 11 are located at the top of the mother nail 1, fixing the mother nail 1; the fourth connection structure is: the suture 11 is inserted into the second threading hole 9, the fourth threading hole 6 and the thread hole 8 at the same time, and the two ends of the suture 11 are located at the top of the sub-nail 2, and the sub-nail 2 is installed into the mother nail 1. Figure 7B As shown, the suture 11 passes through the threaded hole 5, the first threading hole 10, the third threading hole 3, the first threading hole 10, and the threaded hole 5 of the female nail 1 in sequence, that is, both ends of the suture 11 pass through the threaded hole 5, and the female nail 1 with the suture 11 is installed in the preset positioning hole. Figure 7A As shown, the suture 11 passes through the thread hole 8, the second threading hole 9, the fourth threading hole 6, the second threading hole 9, and the thread hole 8 of the sub-nail 1 in sequence, that is, both ends of the suture 11 pass through the thread hole 8, and the sub-nail 2 with the suture 11 is installed in the mother nail 1. In this embodiment, the suture 11 passes through the interior of the mother nail 1 and / or the sub-nail 2, so that the suture 11 does not contact the external threads of the mother nail 1 or the sub-nail 2, preventing the suture 11 from being cut and damaged, reducing the influence of the threads on the suture 11, and can be quickly installed in the positioning hole or the mother nail 1, which not only protects the suture 11 but also improves the efficiency of the operation.

[0057] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0058] In the description of this application, it should be understood that the terms "depth", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 a limitation on the present invention.

[0059] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0060] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0061] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A medical anchor, characterized in that: include: The mother nail and the child nail, the child nail is axially arranged in the mother nail, the child nail and the mother nail are detachably connected, the mother nail is provided with a first threading structure, the child nail is provided with a second threading structure, the suture is fixed through the first threading structure and the second threading structure; the detachable connection is a threaded connection; the mother nail is provided with a threaded hole axially passing through the mother nail for accommodating the child nail, the outer periphery of the child nail is provided with a second threaded section matching the threaded hole, and the outer periphery of the mother nail is provided with a first threaded section; the first threading structure includes a first threading hole radially passing through the mother nail and a first threading groove provided on the outer periphery of the mother nail and connecting the first threading hole and the top of the mother nail, the first threading groove is provided on the mother nail on the first threaded segment of the outer circumference of the sub-nail; the second threading structure includes a second threading hole radially passing through the sub-nail, a second threading groove arranged on the outer circumference of the sub-nail and connecting the second threading hole and the top of the sub-nail, and a threading hole axially arranged in the sub-nail and connecting the second threading hole; the first threading structure also includes a third threading hole arranged on the mother nail, the third threading hole is axially parallel to the first threading hole, and the first threading groove simultaneously connects the first threading hole and the third threading hole; the second threading structure also includes a fourth threading hole arranged on the sub-nail, the fourth threading hole is axially parallel to the second threading hole, and the second threading groove simultaneously connects the second threading hole and the fourth threading hole; Wherein, the suture is connected to the medical anchor in at least one of the following ways: Passing through the first threading hole and / or the third threading hole of the female nail and extending along the first threading groove to the top of the female nail; and / or Pass through the second threading hole and / or the fourth threading hole of the sub-nail, and axially penetrate the sub-nail through the threading hole, or pass through the second threading hole and / or the fourth threading hole of the sub-nail, and extend along the second threading groove to the top of the sub-nail.

2. The medical anchor according to claim 1, characterized in that: The top of the mother nail is provided with a first screw-in fitting structure, the bottom end of the mother nail is pointed, the top of the child nail is provided with a second screw-in fitting structure, and the bottom end of the child nail is pointed.

3. A connection structure of a medical anchor and suture, characterized in that: The invention comprises a suture and a group of medical anchors according to claim 1, wherein the suture and the medical anchor are connected by a first connection structure and / or a second connection structure; The first connection structure is: the suture is passed through the first threading hole and / or the third threading hole, and the sub-nail is installed into the mother nail; The second connection structure is as follows: the suture is passed through the second threading hole and / or the fourth threading hole, and the sub-nail is installed into the mother nail.

4. The connection structure of the medical anchor and suture according to claim 3, characterized in that: The invention comprises a suture and two sets of medical anchor nails according to claim 1, wherein the suture and the two sub-nails respectively adopt the first connection structure to connect the two sub-nails; or the suture and the two mother nails respectively adopt the second connection structure to connect the two mother nails; Alternatively, it comprises two sutures and two groups of medical anchor nails according to claim 1, each of the sutures is connected to a sub-nail using the first connection structure, and the two sutures are connected to each other; or each of the sutures is connected to a mother nail using the second connection structure, and the two sutures are connected to each other.

5. A connection structure of a medical anchor and suture, characterized in that: The invention comprises a suture and a set of medical anchors according to claim 1, wherein the suture and the medical anchor are connected by a third connection structure and / or a fourth connection structure; The third connection structure is as follows: the suture is simultaneously passed through the first threading hole, the third threading hole and the threaded hole, and both ends of the suture are located at the top of the female nail to fix the female nail; The fourth connection structure is: the suture is inserted into the second threading hole, the fourth threading hole and the wire hole at the same time, the two ends of the suture are located at the top of the sub-nail, and the sub-nail is installed into the mother nail.

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