A wire anchor implantation system and implantation method

Abstract

The present application relates to the field of medical devices, and in particular to a wire anchor implantation system and implantation method. It includes an anchor, a push rod, a handle, a twist rod and a suture. The anchor consists of a nail body and a nail head, wherein the nail body is a tubular structure, a connecting portion is provided at the tail, and a deformation portion is provided at the front end; a transmission portion is provided at the tail of the nail head, and an expansion portion is provided on the outer wall. A guide hole is provided in the middle of the push rod, and a plug-in portion is provided at the front end; the handle is slidably connected to the push rod, and a knocking force can be applied to the push rod by inertia; the twist rod is slidably connected in the guide hole, and an engaging portion is provided at the front end. One end of the suture is connected to the nail head, and the other end passes through the lumen of the anchor and the twist rod. The present application achieves effective fixation of the anchor through a unique structural design, improves surgical efficiency and safety, and simplifies the operation process for easy clinical application.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a wire anchor implantation system and an implantation method. Background Art

[0002] With the deepening trend of population aging and the enhancement of national sports awareness, more and more people suffer from sports injuries caused by excessive or incorrect exercise, resulting in complete or partial separation of ligaments, tendons or other soft tissues from bones. The injured parts are mostly the head, shoulders, wrists, elbows, waist, knees, and ankles. This type of injury is generally clinically treated by reconstructing the soft tissue and bone with wire anchors to achieve the purpose of repairing soft tissue injuries.

[0003] At present, the mainstream wire anchors on the market are threaded anchors. Before implantation, a basic hole is pre-drilled on the bone, and then the wire anchor is screwed into the basic hole by rotating to achieve the purpose of fixation.

[0004] However, for the elderly, their bone condition is significantly different from that of adults, and most of them have osteoporosis. In this condition, the anchor often cannot achieve the expected pull-out resistance after being screwed into the bone, which becomes an important reason for treatment failure. Due to the poor fixation effect, this problem may further aggravate the patient's rotator cuff injury, thereby having a negative impact on the patient's quality of life. In addition, the diameter of the base hole required for the wire anchor is often smaller than the threaded part of the anchor, which makes it more difficult to screw in the anchor and affects the efficiency of the operation. For the elderly, the process of screwing in the anchor will be accompanied by the generation of bone fragments, and may even cause secondary damage to the bones, leaving patients with hidden disease risks, increasing the risk of surgery, and reducing the safety of surgery. Therefore, it is urgent to develop a simpler and more efficient wire anchor implantation system to overcome the above-mentioned defects and improve the success rate and safety of the operation. Summary of the invention

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the present application provides a wire anchor implantation system and implantation method, which can realize a simple and efficient completion of the wire anchor implantation surgery, and the anchor has strong pull-out resistance after implantation, greatly improving the success rate and safety of the surgery.

[0006] This application is implemented through the following technical solutions:

[0007] A wire anchor implantation system, comprising:

[0008] An anchor nail, the anchor nail comprises a nail body and a nail head threadedly connected to the front end of the nail body, the nail body is a tubular structure, a connecting portion is provided at the tail, and a deformation portion is provided at the front end of the nail body; a transmission portion is provided at the tail of the nail head, and an expansion portion is provided on the outer wall of the nail head for driving the deformation portion of the nail body to expand outward;

[0009] A push rod, wherein a guide hole is provided in the middle part of the push rod, and a plug-in part adapted to the nail body connecting part is provided at the front end;

[0010] The handle is slidably connected to the push rod and can apply a knocking force to the push rod by relying on inertia.

[0011] The twisting rod is in a tubular structure and is movably connected in the guide hole. The front end of the twisting rod is provided with an engaging portion matched with the nail head transmission portion.

[0012] A suture, one end of which is connected to the nail head, and the other end of which can pass through the lumen of the anchor nail and the screw rod.

[0013] By adopting the above technical solution, the nail body and nail head of the anchor nail are tightly connected by threads, which can achieve precise positioning during the implantation process, and the expansion part of the outer wall of the nail head can effectively drive the deformation part of the front end of the nail body to expand outward, thereby forming a stable fixing point in the bone hole, which significantly enhances the overall anti-pullout performance of the anchor nail. More importantly, since the nail head is threadedly connected inside the nail body, compared with the traditional method of directly threading the anchor nail into the bone hole, it can reduce secondary damage to bone tissue and is not easy to produce bone fragments, making the operation safer. Among them, the thread structure in the nail body cavity can adopt T-type self-locking The threaded structure can enhance the reliability of the connection between the nail head and the nail body; at the same time, the design of the handle allows the doctor to easily knock the anchor into the bone tissue by using the inertial force through a simple sliding handle action, without the need to use additional tools such as hammers, greatly improving the convenience and efficiency of the operation; the screw rod can rotate smoothly in the guide hole, and the meshing part set at the front end is adapted to the nail head transmission part, ensuring that the screw rod can effectively drive the nail head to rotate during the tightening process; one end of the suture is connected to the nail head, and the other end can pass through the lumen of the anchor and the screw rod, realizing the effective connection between the suture and the anchor, ensuring the stability and reliability of the suture during the operation.

[0014] Optionally, the outer wall of the nail body is provided with a plurality of ratchet bosses arranged at intervals.

[0015] By adopting the above technical solution, a plurality of ratchet bosses arranged at intervals are provided on the outer wall of the nail body, which can provide additional friction resistance after the anchor is inserted into the bone hole, prevent the anchor from rotating or slipping when subjected to force, thereby further improving the stability and fixation effect of the anchor. More importantly, the ratchet bosses can form a multi-layer sealing structure for the base hole. If bone fragments are produced in the base hole, the ratchet bosses can prevent them from overflowing from the base hole, thereby reducing the risk of surgery and improving the safety of surgery.

[0016] Optionally, the connecting portion and the transmission portion are both grooves with polygonal structures.

[0017] By adopting the above technical solution, the connecting part and the transmission part are designed as polygonal grooves, which can effectively prevent the relative rotation between the nail body and the nail head, effectively transmit torque, ensure the stable connection between the two during the implantation process, and improve the reliability and operating accuracy of the system.

[0018] Optionally, the deformable portion is provided with a plurality of open elastic grooves evenly distributed along the circumferential direction; the expansion portion is of a conical structure, and an accommodating cavity matched with the expansion portion is provided in the inner cavity of the deformable portion.

[0019] By adopting the above technical scheme, a number of open elastic grooves evenly distributed along the circumference on the deformation part increase the radial deformation capacity of the nail body when subjected to force, making it easier for the expansion part to drive the deformation part to expand outward, thereby better fitting the bone hole wall and improving the fixing strength and stability of the anchor nail. The expansion part of the conical structure cooperates with the accommodating cavity of the deformation part to ensure the smoothness and uniformity of the expansion process and reduce the risk of damage to bone tissue. The accommodating cavity can cover the expansion part of the nail head and accommodate the expansion part at the front end of the nail body, thereby optimizing the structural design. The overall volume of the anchor nail is smaller, the opening diameter of the basic hole can be reduced, and the trauma to the bone can be reduced. Among them, the outer diameter of the large port of the expansion part of the nail head is not larger than the outer diameter of the nail body.

[0020] Optionally, a sleeve is fixed in the handle, and a slide groove arranged along the axial direction is provided on the sleeve; the push rod is slidably connected in the sleeve, and a limit pin is provided on the push rod, and the limit pin is slidably connected in the slide groove.

[0021] By adopting the above technical solution, the sliding connection design between the sleeve in the handle and the push rod ensures that the push rod can be stably pushed forward when subjected to the impact force of the handle, avoiding the deviation or jamming of the push rod during movement, and improving the accuracy and stability of anchor implantation; the cooperation between the limit pin and the slide groove not only ensures the precise axial movement of the push rod, but also effectively prevents the push rod from falling out, thereby improving the reliability and safety of the entire system.

[0022] Optionally, the push rod is provided with a retaining ring for transmitting the striking force of the handle.

[0023] By adopting the above technical solution, the retaining ring on the push rod can effectively transmit the striking force of the handle, ensuring that the anchor can be smoothly inserted into the base hole, avoiding implantation difficulties caused by force dispersion, and improving the convenience and efficiency of surgical operation.

[0024] Optionally, a wire collection groove is provided on the outer wall of the handle.

[0025] By adopting the above technical solution, the outer wall of the handle is provided with a wire collection groove, which can conveniently collect and manage sutures during surgery, avoid operational inconvenience caused by scattered sutures, and improve the convenience and safety of surgical operations.

[0026] Optionally, the nail head is a tubular structure, and a fixing pin is provided in the tubular cavity of the nail head.

[0027] By adopting the above technical solution, the nail head has a tubular structure, which can not only reduce the weight of the nail head, but also provide a setting space for the transmission part. A fixing pin is arranged in the tubular cavity of the nail head, which can effectively prevent the suture from falling off during use and ensure a firm connection between the suture and the nail head, thereby improving the stability and reliability of the entire wire anchor system.

[0028] Optionally, a turning handle is provided at the tail of the twist rod, and a threading hole is provided in the middle of the turning handle.

[0029] By adopting the above technical solution, the turning handle arranged at the tail of the twist rod is convenient for the doctor to hold and operate, and the threading hole in the middle is convenient for inserting auxiliary tools or wires, thereby improving the convenience and flexibility of operation.

[0030] A wire anchor implantation method, using any of the wire anchor implantation systems described above, specifically comprises the following steps:

[0031] The first step is to drill the basic holes in the bone;

[0032] The second step is to first connect and fix one end of the suture to the nail head, and then pass the other end through the nail body and the screw rod in sequence. After the nail head is connected to the nail body, the nail body and the push rod are connected together, and the suture passing through the tail of the screw rod is wrapped around the handle and fixed to form a wire anchor system;

[0033] The third step is to align the anchor system with the base hole and open the suture wrapped around the handle;

[0034] Step 4: Slide the handle to knock the push rod to insert the anchor into the foundation hole until the anchor is completely inserted into the foundation hole;

[0035] The fifth step is to tighten the screw rod. The meshing part of the screw rod drives the nail head to rotate, and the nail head enters the nail body through the threaded fit. During the entry process, the expansion part on the nail head drives the deformation part on the nail body to expand outward and abut against the foundation hole to complete the anchor fixation.

[0036] By adopting the above technical solution, the wire anchor implantation method can significantly improve the success rate and safety of the operation. Specifically, in the first step, a basic hole is drilled in the bone in advance to ensure the precise implantation position of the subsequent anchor. The diameter of the contact hole can be the same as the outer diameter of the nail body, which can reduce the difficulty of anchor implantation. The anchor can be placed in the basic hole with a light tap to avoid secondary damage to the bone tissue by the anchor. In the second step, one end of the suture is connected and fixed to the nail head, and the other end passes through the nail body and the twist rod in turn, and the suture is wrapped around the handle for fixation, forming a complete wire anchor system, which is convenient for doctors to operate. In the third step, the wire anchor system is connected to the nail head. The basic hole is aligned and the suture wrapped around the handle is opened to prepare for implantation; in the fourth step, the push rod is knocked on the push rod by sliding the handle to smoothly insert the anchor into the basic hole until the anchor is completely inserted into the basic hole. This process is simple and quick, avoiding the inconvenience and risks brought by the traditional screw-in method; the most critical step is the fifth step. When tightening the screw rod, the meshing part of the screw rod drives the nail head to rotate, and the nail head enters the nail body through the threaded fit. In this process, the expansion part on the nail head drives the deformation part on the nail body to expand outward to form a stable fixing point, which significantly enhances the anti-pullout performance of the anchor, reduces the secondary damage to the bone tissue, and improves the safety and effectiveness of the operation.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] The nail body and nail head of the anchor nail of the present application are tightly connected by threads, and the expansion part of the outer wall of the nail head can effectively drive the deformation part of the front end of the nail body to expand outward, thereby forming a stable fixing point in the bone hole, significantly enhancing the overall anti-pullout performance of the anchor nail, and solving the problem of poor anchor nail fixation effect under the condition of osteoporosis in the elderly;

[0039] The design of the handle of the present application allows the doctor to easily knock the anchor into the bone tissue by using the inertial force through a simple sliding motion of the handle, without the need to use additional tools such as hammers, which greatly improves the convenience and efficiency of the operation;

[0040] The nail head of the present application is threadedly connected inside the nail body, which reduces secondary damage to bone tissue and is less likely to produce bone fragments, making the operation safer.

[0041] The implantation method of the present application is simple to operate, reduces the difficulty of the operation, and improves the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the wire anchor implantation system described in Example 1;

[0043] Figure 2 is a schematic diagram of the connection structure of the wire anchor implantation system described in Example 1;

[0044] Figure 3 is a schematic diagram of the three-dimensional structure of the nail head described in Example 1;

[0045] Figure 4 is a schematic cross-sectional structural diagram of the nail head described in Example 1;

[0046] Figure 5 is a schematic diagram of the three-dimensional structure of the nail body in the first embodiment;

[0047] Figure 6 is a schematic cross-sectional structural diagram of the nail body in the first embodiment;

[0048] Figure 7 is a schematic diagram of the three-dimensional structure of the handle described in Example 1;

[0049] Figure 8 is a schematic diagram of the installation structure of the sleeve and the push rod described in the first embodiment;

[0050] Fig. 9 is a schematic structural diagram of the sleeve-twisting rod described in Embodiment 1;

[0051] Fig.10 is a schematic structural diagram of the meshing portion described in Example 1;

[0052] Fig.11 is a schematic diagram of the wire anchor implantation system described in Example 2;

[0053] Fig.12 is a partial cross-sectional structural schematic diagram of the handle described in the second embodiment;

[0054] Fig.13 is a schematic diagram of the installation structure of the sleeve and the push rod in the second embodiment;

[0055] Fig.14 is a schematic diagram of the three-dimensional structure of the nail head described in Example 3;

[0056] Fig.15 is a schematic structural diagram of the meshing portion described in Embodiment 3;

[0057] Fig.16 It is a schematic diagram of the connection structure of the wire anchor implantation system described in Example 3.

[0058] In the figure: 1. nail head; 11. threaded portion; 12. transmission portion; 13. expansion portion; 14. fixing pin; 15. fixing hole; 2. nail body; 21. ratchet boss; 22. deformation portion; 221. open elastic groove; 23. connecting portion; 24. accommodating chamber; 3. push rod; 31. guide hole; 32. plug-in portion; 33. limit pin; 34. retaining ring; 4. handle; 41. sleeve; 411. slide groove; 412. elastic sleeve; 42. wire collection groove; 5. twist rod; 51. meshing portion; 52. turning handle; 521. threading hole; 6. suture. DETAILED DESCRIPTION

[0059] The following will clearly and completely describe the technical solutions of the various embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. Example

[0060] Reference Figure 1~2 The embodiment of the present application discloses a wire anchor implantation system, including an anchor, a push rod 3, a handle 4, a screw rod 5 and a suture 6, wherein the anchor includes a nail body 2 and a nail head 1 threadedly connected to the front end of the nail body 2, the nail body 2 is a tubular structure, a connecting portion 23 is provided at the tail, and a deformation portion 22 is provided at the front end of the nail body 2; the nail head 1 is also a tubular structure, a threaded portion 11 is provided on the outer wall of the tail, a transmission portion 12 is provided on the inner wall, and an expansion portion for driving the deformation portion 22 of the nail body 2 to expand outward is provided on the outer wall of the nail head 1 13; the threaded portion 11 can adopt a T-shaped self-locking thread structure; a guide hole 31 is provided in the middle of the push rod 3, and a plug-in portion 32 adapted to the connecting portion 23 of the nail body 2 is provided at the front end; the handle 4 is slidably connected to the push rod 3, and can rely on inertia to apply a knocking force to the push rod 3; the twisting rod 5 is a tubular structure, slidably connected in the guide hole 31, and a meshing portion 51 adapted to the transmission portion 12 of the nail head 1 is provided at the front end of the twisting rod 5; one end of the suture 6 is connected to the nail head 1, and the other end can pass through the lumen of the anchor nail and the twisting rod 5.

[0061] Specifically, refer to Figure 3~4The transmission part 12 of the nail head 1 is a polygonal groove, which can better cooperate with the meshing part 51 of the screw rod 5 to ensure the stability of the transmitted torque. A regular quadrilateral or a regular hexagon can be used. The expansion part 13 is arranged at the head of the nail head 1 and has a conical structure. When the nail head 1 enters the nail body 2, the deformation part 22 of the nail body 2 can be gradually expanded to firmly fix it in the bone hole; a fixing pin 14 can also be provided in the lumen of the nail head 1. This fixing pin 14 can be a small spring steel wire, which is used to fix one end of the suture 6 to prevent it from falling off during surgery; the material selection of the nail head 1 is also critical, and high-strength medical stainless steel or titanium alloy is usually selected to ensure its corrosion resistance during high temperature and high pressure sterilization and stability in long-term use.

[0062] Reference Figures 5 and 6 The nail body 2 is made of metal material, such as stainless steel or titanium alloy, and has good biocompatibility and strength; the connecting portion 23 of the nail body 2 can be a groove or a boss structure, depending on the needs of the actual application scenario. The present embodiment adopts a circular groove structure, which is convenient for docking. The groove can optimize the structure of the nail body 2 to ensure that there is enough area over the effective length to form a resistance force with the base hole; the deformation portion 22 of the nail body 2 is evenly distributed along the circumference with a number of open elastic grooves 221, which can be formed by laser cutting or by one-time molding by a mold; the function of these elastic grooves is to respond quickly and evenly distribute pressure when the nail head 1 enters the nail body 2, so as to prevent damage caused by local stress concentration; The outer wall of the nail body 2 can also be provided with a plurality of ratchet bosses 21 arranged at intervals. The main function of the ratchet bosses 21 is to increase the friction between the nail body 2 and the bone tissue to prevent the anchor from sliding when subjected to force; a conical accommodating cavity 24 adapted to the expansion portion 13 is provided in the inner cavity of the deformation portion 22, and the expansion portion 13 cooperates with the accommodating cavity 24 of the deformation portion 22 to ensure the smoothness and uniformity of the expansion process and reduce the risk of damage to the bone tissue. The accommodating cavity 24 can cover the expansion portion 13 of the nail head 1 and accommodate the expansion portion 13 at the front end of the nail body 2, thereby optimizing the structural design, making the overall volume of the anchor smaller, reducing the opening diameter of the base hole, and reducing the trauma to the bone. Among them, the outer diameter of the large port of the expansion portion 13 of the nail head 1 is not greater than the outer diameter of the nail body 2.

[0063] Reference Figure 7, the outside of the handle 4 is provided with a wire collection groove 42, which is a straight groove structure or a spiral groove, so as to facilitate the neat winding of the suture 6 on the handle 4; a sleeve 41 is fixed inside the handle 4, and a slide groove 411 arranged along the axial direction is provided on the sleeve 41, and the push rod 3 is slidably connected in the sleeve 41, and the limit pin 33 on the push rod 3 is slidably connected in the slide groove 411, such a design can ensure the smooth movement of the push rod 3 in the handle 4 to avoid deviation and shaking; the material of the handle 4 can be ABS plastic or aluminum alloy, which is both light and durable. The shape design of the handle 4 should also conform to the principle of ergonomics and be easy to hold and operate; the material of the sleeve 41 can be stainless steel or aluminum alloy, and its inner wall adopts a smooth surface design to reduce the friction between the sleeve 41 and the push rod 3, so as to facilitate the handle 4 to apply the knocking force; in order to increase the knocking force, a counterweight block can be provided in the handle 4 to increase the inertia force, and the counterweight block is embedded in the handle, so it is not marked in the attached figure.

[0064] Reference Figure 8 The plug-in portion 32 of the push rod 3 is matched with the connecting portion 23 of the nail body 2. A guide hole 31 is provided in the middle of the push rod 3. The guide hole 31 can be a straight channel or a curved channel with a certain curvature. The specific design depends on the path requirement of the screw rod 5. It is used to introduce the screw rod 5 to apply a rotational force to the nail head 1. The length of the push rod 3 can be adjusted according to the actual surgical scenario. Generally, the length of the push rod 3 is about 20-30 cm and the diameter is about 5 mm.

[0065] Reference Figures 9 and 10 The front end of the twisting rod 5 is provided with an engaging portion 51 adapted to the transmission portion 12 of the nail head 1. The engaging portion 51 can be in the form of a spline, a gear, etc., and the specific selection depends on the shape of the transmission portion 12 of the nail head 1. The tail of the twisting rod 5 is provided with a turning handle 52, and the middle of the turning handle 52 is provided with a threading hole 521. The threading hole 521 can be used to pass the suture 6, which is convenient for the doctor to operate; the length of the twisting rod 5 can be adjusted according to the actual surgical scene. Generally, the length of the twisting rod 5 is about 5-10 cm longer than the length of the push rod 3 to ensure that the handle 4 has sufficient sliding space. The diameter of the twisting rod 5 is about 4 mm, and the material of the twisting rod 5 can also be medical stainless steel or titanium alloy to ensure its stability and durability in long-term use. When the push rod 3 is a curved structure, the twisting rod 5 can adopt a soft shaft.

[0066] The implementation principle of this embodiment is as follows: by adopting the above technical solution, the nail body 2 and the nail head 1 of the anchor are tightly connected by threads, which can achieve precise positioning during the implantation process, and the expansion part 13 of the outer wall of the nail head 1 can effectively drive the deformation part of the front end of the nail body 2 to expand outward, thereby forming a stable fixed point in the bone hole, significantly enhancing the overall anti-pullout performance of the anchor. At the same time, the design of the handle 4 allows the doctor to easily knock the anchor into the bone tissue by inertial force through a simple sliding handle 4 action, without the need to use additional tools such as hammers, which greatly improves the convenience and efficiency of the operation. More importantly, since the nail head 1 is a threaded connection implemented inside the nail body 2, compared with the traditional method of directly threading the anchor directly into the bone hole, it can reduce secondary damage to the bone tissue and is not easy to produce bone fragments, making the operation safer. In general, this embodiment provides an efficient and reliable wire anchor implantation system, which effectively solves the problems existing in the prior art and improves the success rate and safety of the operation. Example

[0067] Reference Figures 11 to 13 The difference between this embodiment and the first embodiment is that the connecting portion 23 of the nail body 2 adopts a regular polygonal groove. When the screw rod 5 rotates the nail head 1, if the base hole is too large, the plug-in portion 32 of the push rod 3 can limit the rotation of the nail body 2 to prevent it from rotating with the nail head 1 to ensure the reliability of the system operation. A mounting groove is provided at the upper end of the guide hole 31 of the push rod 3, and an elastic sleeve 412 is provided in the mounting groove. The elastic sleeve 412 can be made of rubber material or a metal retaining spring, which can provide a clamping force to the screw rod 5 in the guide hole 31, and use the friction between the two to limit the screw rod 5 to a certain extent to prevent the screw rod 5 from slipping from the guide hole 31 and affecting the normal operation. In order to further enhance the reliability and service life of the system, a retaining ring 34 is provided on the outer wall of the lower end of the push rod 3 to reduce the load on the pin when the bearing handle 4 is knocked. This retaining ring 34 can be made of hard plastic or metal, bonded or welded to the push rod 3, or it can be made in one piece with the push rod 3.

[0068] The implementation principle of this embodiment is: by designing the connecting part 23, the elastic ring and the retaining ring 34 of the regular polygonal groove structure, the reliability of the system can be further improved, the smooth progress of the operation can be ensured, and accidents can be prevented, so as to indirectly improve the convenience and efficiency of the operation. Example

[0069] Reference Figures 14 to 16The difference between this embodiment and the first embodiment is that the nail head 1 is a solid structure, the outer wall of the tail is provided with a threaded portion 11, and the connecting portion 23 provided at the tail is a connecting piece with a straight-line structure. The connecting piece can be designed as an integral part of the nail head 1, and a fixing hole 15 is provided on the connecting piece for tying the suture 6; the engaging portion 51 at the front end of the twisting rod 5 is a straight-line open groove adapted to the connecting portion 23.

[0070] The implementation principle of this embodiment is as follows: the connecting piece protrudes from the outside of the nail head 1, which can cooperate with the twisting rod 5 to transmit torque on the one hand, and can facilitate the binding of the suture 6 on the other hand. Example

[0071] The present application also discloses a wire anchor implantation method, which uses the wire anchor implantation system in the second embodiment and specifically includes the following steps:

[0072] The first step is to drill the basic holes in the bone;

[0073] In the second step, one end of the suture 6 is first connected and fixed to the nail head 1, and the other end is passed through the nail body 2 and the screw rod 5 in sequence. After the nail head 1 is connected to the nail body 2, the nail body 2 and the push rod 3 are connected together, and the suture 6 passing through the tail of the screw rod 5 is wrapped around the handle 4 for fixing, so as to form a wire anchor system;

[0074] The third step is to align the anchor system with the base hole and open the suture 6 wrapped around the handle 4;

[0075] Step 4: Slide the handle 4 to knock the push rod 3 to insert the anchor into the foundation hole until the anchor is completely inserted into the foundation hole;

[0076] The fifth step is to tighten the screw rod 5. The meshing portion 51 of the screw rod 5 drives the nail head 1 to rotate. The nail head 1 enters the nail body 2 through threaded engagement. During the entry process, the expansion portion 13 on the nail head 1 drives the deformation portion on the nail body 2 to expand outward and abut against the base hole to complete the anchor fixation.

[0077] The implementation principle of the embodiment of the present application is as follows: the wire anchor implantation method can significantly improve the success rate and safety of the operation. Specifically, in the first step, a basic hole is drilled in the bone in advance to ensure the precise implantation position of the subsequent anchor. The diameter of the basic hole can be slightly larger than the outer diameter of the nail body 2, which further reduces the difficulty of anchor implantation, facilitates operation, and avoids secondary damage to bone tissue by the anchor. In the second step, one end of the suture 6 is connected and fixed to the nail head 1, and the other end passes through the nail body 2 and the twist rod 5 in turn, and the suture 6 is wrapped around the handle 4 for fixing, forming a complete wire anchor system, which is convenient for the doctor to operate. In the third step, the wire anchor system is aligned with the basic hole, and the suture 6 wrapped around the handle 4 is opened to prepare for implantation. In the fourth step, the anchor can be smoothly inserted by simply sliding the handle 4 and gently tapping the push rod 3. Into the basic hole until the anchor nail is completely inserted into the basic hole. This process is simple and quick, avoiding the inconvenience and risks brought by the traditional screw-in method; the fifth step, when tightening the screw rod 5, the meshing portion 51 of the screw rod 5 drives the nail head 1 to rotate, and the nail head 1 enters the nail body 2 through threaded cooperation. In this process, the expansion portion 13 on the nail head 1 drives the deformation portion on the nail body 2 to expand outward to form a stable fixing point, which significantly enhances the anti-pullout performance of the anchor nail, reduces the secondary damage to the bone tissue, and improves the safety and effectiveness of the operation. It should be pointed out that if the surgical space is small and the diameter of the basic hole is the same as the outer diameter of the nail body 2, the system in implementation one can be used for surgery. The abutment between the basic hole and the nail body 2 will form friction, which can prevent the nail body 2 from rotating together when the nail head 1 is rotated, thereby ensuring the smooth progress of the operation.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application.

Claims

1. A wire anchor implantation system, characterized in that: include: An anchor nail, the anchor nail comprising a nail body (2) and a nail head (1) threadedly connected to the front end of the nail body (2), the nail body (2) being in a tubular structure, a connecting portion (23) being provided at the rear end, and a deformation portion (22) being provided at the front end of the nail body (2); a transmission portion (12) being provided at the rear end of the nail head (1), and an expansion portion (13) being provided on the outer wall of the nail head (1) for driving the deformation portion (22) of the nail body (2) to expand outwards; A push rod (3), wherein a guide hole (31) is provided in the middle of the push rod (3), and a plug-in portion (32) adapted to the connecting portion (23) of the nail body (2) is provided at the front end; a retaining ring (34) for transmitting the striking force of the handle (4) is provided on the push rod (3); A handle (4), wherein the handle (4) is slidably connected to the push rod (3) and can exert a knocking force on the push rod (3) by relying on inertia; A twisting rod (5), the twisting rod (5) being of a tubular structure and movably connected in the guide hole (31), and a meshing portion (51) adapted to the transmission portion (12) of the nail head (1) is provided at the front end of the twisting rod (5); A suture (6), one end of which is connected to the nail head (1), and the other end of which can pass through the lumen of the anchor nail and the screw rod (5).

2. The wire anchor implantation system according to claim 1, characterized in that: The outer wall of the nail body (2) is provided with a plurality of ratchet bosses (21) arranged at intervals.

3. The wire anchor implantation system according to claim 1, characterized in that: The connecting portion (23) and the transmission portion (12) are both grooves with polygonal structures.

4. The wire anchor implantation system according to claim 1, characterized in that: The deformable portion (22) is provided with a plurality of open elastic grooves (221) uniformly distributed along the circumferential direction; the expansion portion (13) is of a conical structure, and a receiving cavity (24) adapted to the expansion portion (13) is provided in the inner cavity of the deformable portion (22).

5. The wire anchor implantation system according to claim 1, characterized in that: A sleeve (41) is fixed in the handle (4), and a slide groove (411) arranged along the axial direction is provided on the sleeve (41); the push rod (3) is slidably connected in the sleeve (41), and a limit pin (33) is provided on the push rod (3), and the limit pin (33) is slidably connected in the slide groove (411).

6. The wire anchor implantation system according to claim 1, characterized in that: The outer wall of the handle (4) is provided with a wire collection groove (42), and a counterweight block is provided inside the handle.

7. The wire anchor implantation system according to claim 1, characterized in that: The nail head (1) is a tubular structure, and a fixing pin (14) is provided in the tubular cavity of the nail head (1).

8. The wire anchor implantation system according to claim 1, characterized in that: A rotating handle (52) is provided at the tail of the twisting rod (5), and a threading hole (521) is provided in the middle of the rotating handle (52).

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