Iatrogenic MCL femoral dead center avulsion repair instrument and method based on mesh suture and bone cement wrapping

Abstract

The invention provides an iatrogenic MCL thighbone dead center avulsion repair instrument and method based on mesh suture and bone cement wrapping, and belongs to the technical field of thighbone dead center avulsion repair instruments. Comprising a first limiting framework, a second limiting framework is installed on one side of the first limiting framework, and bandage bodies are installed on the two sides of the first limiting framework and the two sides of the second limiting framework; the auxiliary limiting mechanism is used for enhancing the stability of the device structure and assisting in surgical suture, and the auxiliary limiting mechanism is connected with the second limiting framework. By arranging the auxiliary limiting mechanism, instrument loss and increase of the risk of suture needle breakage can be effectively avoided, meanwhile, the working efficiency of suture is effectively improved, the legs of a patient can be well limited in the operation process through cooperative use of the first limiting framework, the second limiting framework and the bandage body, and the patient can be more conveniently and rapidly subjected to operation. And the legs of the patient can be protected after the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of femoral attachment avulsion repair instruments, and particularly to an iatrogenic MCL femoral attachment avulsion repair instrument and method based on mesh suture and bone cement wrapping. Background Art

[0002] For iatrogenic MCL femoral attachment avulsion, the existing techniques mainly include methods such as anchor suture, screw spacer fixation, and special steel plate fixation.

[0003] Among them, anchor suture is a common method. During operation, the avulsion site is first exposed, an anchor is implanted in the femur, and a suture is used to connect the avulsed tissue to the anchor for fixation. However, this method has many drawbacks. The anchor implantation is likely to damage the bone quality, and the fixation effect is poor in osteoporotic patients. Moreover, the suture grasping force is limited, and the joint movement stress is likely to cause the suture to tear at the suture site, resulting in the re-displacement of the MCL. Screw spacer fixation is to pass a screw through the avulsed ligament, and then insert a spacer and screw it into the bone mass after that. However, when osteoporosis occurs, the screw anchoring force is insufficient and it is easy to loosen. The spacer affects the mechanical environment and causes uneven stress, and the fixation of the anterior edge of the ligament is not good, and it is easy to open during knee flexion, affecting stability. And during the suture operation, if a needle holder is directly used to clamp a thick needle to suture the ligament and the bone mass, long-term use will cause the clamping ability of the needle holder to decline, and at the same time, the force application direction cannot be guaranteed, and the sewing needle is likely to break in the bone mass. Therefore, the present application provides an iatrogenic MCL femoral attachment avulsion repair instrument and method based on mesh suture and bone cement wrapping to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an iatrogenic MCL femoral attachment avulsion repair instrument and method based on mesh suture and bone cement wrapping. By setting an auxiliary limiting mechanism, not only can the risk of instrument loss and sewing needle breakage be effectively avoided, but also the working efficiency of suture can be effectively enhanced. Moreover, the cooperation of the first limiting framework, the second limiting framework and the strap body can also provide good limitation for the patient's leg during the operation, and can also protect the patient's leg after the operation, and the fixing strength and stability of the device are significantly improved. Through the above settings, the problem of poor safety of the existing suture methods can be solved.

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

[0006] An iatrogenic MCL femoral attachment avulsion repair instrument based on mesh suture and bone cement wrapping, comprising a first limiting framework, a second limiting framework is installed on one side of the first limiting framework, and strap bodies are installed on both sides of the first limiting framework and the second limiting framework;

[0007] Auxiliary limiting mechanism, which is used to strengthen the stability of the device structure and assist in surgical suturing, and is connected to the second limiting framework.

[0008] Optionally, the auxiliary limiting mechanism includes a first limiting buckle installed on the second limiting framework, a second limiting buckle installed at the bottom of the second limiting framework, a reinforcing strip installed between the first limiting buckle and the second limiting buckle, a concave portion provided on the reinforcing strip, and side blocks provided at both end portions of the reinforcing strip.

[0009] Optionally, first lightweight grooves are equidistantly provided on the first limiting framework, second lightweight grooves are equidistantly provided on the second limiting framework, and both the first limiting framework and the second limiting framework are arc-shaped structures protruding towards the reinforcing strip.

[0010] Optionally, side strips are provided on both sides of the reinforcing strip, and buffer cavities are provided inside the side strips.

[0011] Optionally, the cross-section of the strap body is X-shaped, magic tapes are provided at both end portions of the strap body, and the strap body is made of polyester fiber material.

[0012] Optionally, a limiting groove is provided on the second limiting framework, limiting blocks adapted to the shape of the buffer cavity are respectively and fixedly connected to both sides of the limiting groove, and limiting blocks adapted to the shape of the buffer cavity are fixedly connected to both the first limiting buckle and the second limiting buckle.

[0013] Optionally, the first limiting framework and the second limiting framework are made of plastic material, the limiting blocks are made of rubber material, and a third weakening portion is provided on the reinforcing strip in the direction close to the center of the second limiting framework.

[0014] Optionally, a handle body is provided on one side of the second limiting framework away from the first limiting framework, a limiting rod is fixedly connected to the side of the handle body close to the second limiting framework, a push rod is installed on the limiting rod, a push needle is installed on the side of the push rod close to the second limiting framework, rollers are installed on the side of the limiting rod close to the second limiting framework through a rotating shaft, a suture needle is installed between the two rollers, a movable groove is provided on the limiting rod, a spring body is horizontally installed in the movable groove, and a convex portion is provided on the side of the push rod close to the handle body.

[0015] Optionally, a first weakening portion is provided at a position close to the center of the first limiting framework, a second weakening portion is provided at a position close to the center of the second limiting framework, and the shapes of the first limiting framework and the second limiting framework are adapted to the shape of the human leg.

[0016] A method for repairing iatrogenic avulsion of the femoral attachment point of the medial collateral ligament (MCL) based on mesh suture and bone cement wrapping, using an instrument for repairing iatrogenic avulsion of the femoral attachment point of the MCL based on mesh suture and bone cement wrapping. The method includes the following steps:

[0017] Step 1: First, place the first limiting skeleton on the posterior side of the patient's leg away from the knee, and align the convex part of the first limiting skeleton with the bent part of the patient's leg. Then, place the second limiting skeleton on the anterior side of the patient's leg near the knee, and align the convex part of the second limiting skeleton with the bent part of the patient's leg;

[0018] Step 2: Then, pass both sides of the strap body through the first lightweight slot and the second lightweight slot respectively. Subsequently, pull the strap body to bring the first limiting skeleton and the second limiting skeleton closer. After adjusting the distance between the first limiting skeleton and the second limiting skeleton to the required size, bend both sides of the strap body, and fix the two ends of the strap body using the magic tape on the strap body;

[0019] Step 3: Subsequently, fix the top of the reinforcing strip in the first limiting buckle and the limiting block on the first limiting buckle. Insert the bottom of the reinforcing strip into the limiting slot, and make the limiting block inserted into the buffer cavity. At this time, the reinforcing strip is in a hook shape, and the bottom of the reinforcing strip assists in limiting and guiding the limiting rod;

[0020] Step 4: Subsequently, the user holds the handle body and pushes the push rod, so that the spring body is compressed. The push rod pushes the push needle to push the suture needle out from the gap formed by the two rollers for one suture. Then, release the push rod, the spring body rebounds, and the push rod returns to its original position. Then, use the stapler to pull out the suture needle to complete one suture;

[0021] Step 5: After the iatrogenic MCL femoral attachment point wrapped with bone cement is sewn into a mesh, remove the bottom of the reinforcing strip from the limiting slot and the limiting block, and fix the bottom of the reinforcing strip on the second limiting buckle and the limiting block on the second limiting buckle.

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

[0023] In the above solution, by setting up the auxiliary limiting mechanism, not only can the risks of instrument wear and suture breakage be effectively avoided, but also the working efficiency of suturing can be effectively enhanced. At the same time, the combined use of the first limiting skeleton, the second limiting skeleton and the strap body can provide good limitation for the patient's leg during the operation, and can also protect the patient's leg after the operation. Moreover, the fixing strength and stability of the device are significantly improved. Compared with the traditional method, the mesh suture structure wrapped with bone cement can better resist stresses in various directions, greatly reducing the risk of re-injury of the MCL and significantly improving the joint stability. And for osteoporosis patients, a more effective solution is provided. The anchoring effect of bone cement in osteoporotic bone ensures the stability of the repair structure, while the mesh suture further enhances the strength of the overall structure, improving the treatment success rate of such patients. And the joint function recovers better. Through the integrated design, the prosthesis and the MCL repair promote each other. During the movement of the prosthesis, the MCL repair structure can stably support the prosthesis, reducing the possibility of prosthesis wear and loosening. At the same time, the presence of the prosthesis also provides a certain mechanical environment support for the MCL repair, helping the patient to recover the joint function faster and better after the operation and reducing complications. The service life of the repair structure is extended, and the structure of the device is simple. The combined use of the structures makes the device have better practicability and is more convenient and fast to use.

[0024] By providing a reinforcing strip inside the auxiliary limiting mechanism, not only can the reinforcing strip be unfolded and placed on the second limiting skeleton to enhance the stability of the second limiting skeleton, making the limiting and supporting effect of the device on the patient's leg better, but also the concave part is used to make the reinforcing strip have a better limiting effect during surgical suturing. And the side blocks are used to enable the two ends of the reinforcing strip to be installed and fixed on the first limiting buckle and the second limiting buckle faster. Moreover, the combined use of the structures effectively makes the use effect of the auxiliary limiting mechanism better, and the structure is simple and convenient to use.

[0025] By providing a first limiting buckle, a second limiting buckle, a limiting groove and a limiting block inside the auxiliary limiting mechanism, not only can the two ends of the reinforcing strip be quickly limited by the first limiting buckle and the second limiting buckle, so that the reinforcing strip can be quickly installed on the second limiting skeleton for use, but also the combined use of the buffer cavity and the limiting block enables the reinforcing strip to be more stably installed on the first limiting buckle and the second limiting buckle. At the same time, the reinforcing strip can also be quickly and stably installed at the limiting groove during surgical use. Moreover, the combined use of the structures effectively makes the use effect of the auxiliary limiting mechanism better, and the structure is simple and convenient to use.

[0026] By providing a push rod and rollers inside the auxiliary limiting mechanism, not only can one hold the handle body with the hand and push the push rod with two fingers, the push rod drives the push needle to move along the outer wall of the limiting rod, the spring body is compressed in the movable groove, the push needle pushes the suture needle during the movement, and the suture needle is pushed out from between the two rollers, enabling the suture needle to perform one suture. And during the process of pushing out the suture needle, affected by the frictional force, the rollers rotate, then the push rod is released, the spring body rebounds, and the push rod and the push needle are reset, so as to facilitate the next suture use. The coordinated use of the structures effectively increases the working efficiency of suturing, and prevents the problem of easy needle breakage during suturing, making the needle have better stability when being pushed out for suturing, and the direction of suture puncture is relatively easy to control. The coordinated use of the structures makes the device safer, and the coordinated use of the structures effectively makes the use effect of the auxiliary limiting mechanism better, and the structure is simple and convenient to use.

[0027] In summary, this device can not only keep the patient's leg in a good surgical angle through the coordinated use of the auxiliary limiting mechanism and its various components, but also effectively reduce the loss of the suture needle during suturing, and the device has better safety. The structure of this device is simple, convenient and fast to use, the production cost of the device is low, and it has good practicability and is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention, and together with the specification are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0029] Figure 1 It is a schematic three-dimensional structure diagram of the use state during the operation of a medical MCL femoral insertion avulsion repair instrument based on mesh suture and bone cement wrapping;

[0030] Figure 2 It is Figure 1 The enlarged structure diagram at A in

[0031] Figure 3 It is a schematic diagram of the cooperation structure of the first limiting skeleton and the second limiting skeleton;

[0032] Figure 4 It is a schematic three-dimensional structure diagram of the reinforcing strip;

[0033] Figure 5 It is Figure 4 The enlarged structure diagram at B in

[0034] Figure 6 It is a schematic cross-sectional structure diagram of the reinforcing strip;

[0035] Figure 7 It is Figure 6Schematic diagram of the enlarged structure at position C;

[0036] Figure 8 Schematic diagram of the three-dimensional structure of the gripper from the first perspective;

[0037] Figure 9 Schematic diagram of the three-dimensional structure of the gripper from the second perspective;

[0038] Figure 10 is Figure 9 Schematic diagram of the enlarged structure at position D;

[0039] Figure 11 Schematic diagram of the three-dimensional structure of a medical MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping in the postoperative use state.

[0040] Reference numerals:

[0041] 1. First limiting framework; 2. Second limiting framework; 3. Band body; 4. First lightweight groove; 5. Second lightweight groove; 6. First weakening part; 7. Second weakening part; 8. First limiting buckle; 9. Second limiting buckle; 10. Reinforcing strip; 11. Concave part; 12. Third weakening part; 13. Edge block; 14. Buffer cavity; 15. Edge strip; 16. Handle body; 17. Limiting rod; 18. Push rod; 19. Push needle; 20. Roller; 21. Suture needle; 22. Activity groove; 23. Spring body; 24. Convex part; 25. Limiting groove; 26. Limiting block.

[0042] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation mode

[0043] The following will describe in detail a medical MCL femoral insertion avulsion repair device and method based on mesh suture and bone cement wrapping provided by the present invention with reference to the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0044] It should be noted that in the specification, the mention of "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicates that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe a specific feature, structure, or characteristic, the implementation of such feature, structure, or characteristic in combination with other embodiments, whether explicitly described or not, should be within the knowledge of those skilled in the relevant art.

[0045] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood to not necessarily aim to convey a set of exclusive factors, but rather, at least in part depending on the context, to allow for the existence of other factors that may not be explicitly described.

[0046] It can be understood that the meanings of "on", "above", and "over" in the present invention should be interpreted in the broadest manner such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0047] Furthermore, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. are used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device can be oriented in other ways, and the spatial relative descriptive terms used herein can be similarly interpreted accordingly.

[0048] Such as Figure 1 and Figure 2As shown, an embodiment of the present invention provides a medical MCL femoral insertion avulsion repair device and method based on mesh suture and bone cement wrapping, including a first limiting framework 1, a second limiting framework 2 is installed on one side of the first limiting framework 1, and strap bodies 3 are installed on both sides of the first limiting framework 1 and the second limiting framework 2; an auxiliary limiting mechanism, which is used to strengthen the stability of the device structure and assist in surgical suture, and the auxiliary limiting mechanism is connected to the second limiting framework 2. By combining mesh suture and bone cement wrapping, a composite repair structure is formed, giving full play to the advantages of both, improving the fixation stability and stress dispersion ability. Thus, it can adapt to special bone conditions: especially suitable for osteoporosis patients, and the bone cement can provide reliable anchorage and stress conduction in osteoporotic bone, overcoming the problem of difficult fixation in the case of osteoporosis by traditional methods. During the prosthesis implantation process, considering the mechanical requirements after MCL repair, the organic combination of the two is achieved through bone cement wrapping, improving the long-term treatment effect. The mesh suture and bone cement wrapping work together to evenly distribute stress, avoid the common stress concentration problem in traditional repair methods, and reduce the risk of local tissue damage and repair structure failure. And the use of the auxiliary limiting mechanism and the cooperation of its various components can effectively avoid the risk of instrument loss and suture needle breakage, while effectively enhancing the working efficiency of suture. The specific structure and working principle of the auxiliary limiting mechanism are described in detail below. And the cooperation of the first limiting framework 1, the second limiting framework 2 and the strap body 3 can also provide good limitation for the patient's leg during the operation. The device can also protect the patient's leg after the operation. The structure of the device is simple, convenient and fast to use, and the cost of the device is relatively low, which is convenient for popularization and use.

[0049] Among them, the first limiting skeleton 1 is equidistantly provided with first lightweight grooves 4, which can not only reduce the weight of the first limiting skeleton 1, but also enhance the deformation ability of the first limiting skeleton 1. The second limiting skeleton 2 is equidistantly provided with second lightweight grooves 5, which can not only reduce the mass of the second limiting skeleton 2, but also enhance the deformation ability of the second limiting skeleton 2. Both the first limiting skeleton 1 and the second limiting skeleton 2 are arc-shaped structures protruding towards the reinforcing strip 10, which is convenient for assisting in limiting the bending angle of the patient's leg, thereby facilitating the surgical operation of the staff. The cross-section of the strap body 3 is X-shaped, which is convenient for stably connecting the first limiting skeleton 1 and the second limiting skeleton 2. Magic tapes are provided at both ends of the strap body 3, which is convenient for quickly fixing both ends of the strap body 3. The strap body 3 is made of polyester fiber material. Due to the polyester fiber material, the material of the strap body 3 is relatively soft and comfortable. A first weakening part 6 is provided near the center position of the first limiting skeleton 1, and a second weakening part 7 is provided near the center position of the second limiting skeleton 2. The shapes of the first limiting skeleton 1 and the second limiting skeleton 2 are adapted to the shape of the human leg. The setting of the first weakening part 6 enables the first limiting skeleton 1 to deform first from the first weakening part 6 under the action of external force, and the setting of the second weakening part 7 enables the second limiting skeleton 2 to deform first from the second weakening part 7 under the action of external force. Moreover, the shape design of the first limiting skeleton 1 and the second limiting skeleton 2 enables the device to fit the leg contour of the patient better during use, so that the limiting effect of the device is better and the comfort of the patient is better.

[0050] As Figures 1 to 7 and Figure 11 shown, the auxiliary limiting mechanism includes a first limiting buckle 8 installed on the second limiting skeleton 2. A second limiting buckle 9 is installed at the bottom of the second limiting skeleton 2. A reinforcing strip 10 is installed between the first limiting buckle 8 and the second limiting buckle 9. A concave part 11 is provided on the reinforcing strip 10. Side blocks 13 are provided at both ends of the reinforcing strip 10. By using the first limiting buckle 8 and the second limiting buckle 9, the two ends of the reinforcing strip 10 can be quickly limited, so that the reinforcing strip 10 can be quickly installed on the second limiting skeleton 2 for use. As Figure 11 shown, when the reinforcing strip 10 is unfolded and placed on the second limiting skeleton 2, the stability of the second limiting skeleton 2 can be enhanced, so that the limiting and supporting effect of the device on the patient's leg is better. Moreover, adjusting the tightness of the strap body 3 can make the device applicable to patients with different leg shapes, making the application range of the device relatively wide. And the setting of the concave part 11 enables the reinforcing strip 10 to have a better limiting effect during surgical suture. And the setting of the side blocks 13 enables the two ends of the reinforcing strip 10 to be installed and fixed on the first limiting buckle 8 and the second limiting buckle 9 faster. And the structure is simple, and the coordinated use of the structures further makes the practicability of the device better.

[0051] Wherein, side strips 15 are provided on both sides of the reinforcing strip 10. The thickness of the side strip 15 is greater than that of the reinforcing strip 10. The reinforcing strip 10 and the side strip 15 are integrally formed. The setting of the side strip 15 makes the strength of the reinforcing strip 10 better. A buffer cavity 14 is formed in the side strip 15. A limiting groove 25 is formed on the second limiting skeleton 2. Limiting blocks 26 adapted to the shape of the buffer cavity 14 are fixedly connected to both sides of the limiting groove 25 respectively. Limiting blocks 26 adapted to the shape of the buffer cavity 14 are fixedly connected to both the first limiting buckle 8 and the second limiting buckle 9. By using the cooperation of the buffer cavity 14 and the limiting blocks 26, the reinforcing strip 10 can be installed on the first limiting buckle 8 and the second limiting buckle 9 more stably. At the same time, the reinforcing strip 10 can also be quickly and stably installed at the limiting groove 25 during surgical use. The first limiting skeleton 1 and the second limiting skeleton 2 are made of plastic material. The plastic material itself has good deformation ability, which further enhances the deformation ability of the first limiting skeleton 1 and the second limiting skeleton 2. The limiting block 26 is made of rubber material, and the outer wall edge of the limiting block 26 is arc-shaped, so that the limiting block 26 can be more easily placed in the buffer cavity 14 formed on the reinforcing strip 10, and then the end of the reinforcing strip 10 is fixed at the required position. A third weakening part 12 is formed in the reinforcing strip 10 in the direction close to the center of the second limiting skeleton 2. Through the setting of the third weakening part 12, the reinforcing strip 10 is more likely to deform from the third weakening part 12 under the action of external force, and then the reinforcing strip 10 can be quickly adjusted under different use states.

[0052] Such as Figure 1 and Figures 8 to 10As shown in the figure, on the side of the second limiting framework 2 away from the first limiting framework 1, there is a handle body 16 of the gripper. On the side of the handle body 16 close to the second limiting framework 2, there is a limiting rod 17 fixedly connected. A push rod 18 is installed on the limiting rod 17. The two limiting rods 17 and the handle body 16 form a scissor-like structure. Between the two limiting rods 17 and on the side of the push rod 18 close to the second limiting framework 2, there is a needle pusher 19 installed. On the side of the limiting rod 17 close to the second limiting framework 2, a roller 20 is installed through a rotating shaft. Between the two rollers 20 and located between the two limiting rods 17, there is a suture needle 21 installed. An activity groove 22 is opened on the limiting rod 17. A spring body 23 is horizontally installed in the activity groove 22. On the side of the push rod 18 close to the handle body 16, there is a convex part 24. First, the suture needle 21 is placed between the two rollers 20. Then, when suturing is needed during the operation, hold the handle body 16 with the hand, and push the push rod 18 with two fingers. The push rod 18 penetrates through the two limiting rods 17. The push rod 18 is slidably connected in the activity groove 22. The spring body 23 is located on the side of the push rod 18 close to the second limiting framework 2. The push rod 18 drives the needle pusher 19 to move along the outer wall of the limiting rod 17. The push rod 18 squeezes the spring body 23, and the spring body 23 is compressed in the activity groove 22. One end of the push rod 19 contacts the suture needle 21. The needle pusher 19 pushes the suture needle 21 during the movement process, and the suture needle 21 is pushed out from between the two rollers 20, enabling the suture needle 21 to perform a suture. During the process of the suture needle 21 being pushed out, affected by the frictional force, the roller 20 rotates. Then, release the push rod 18, and the spring body 23 rebounds, enabling the push rod 18 and the needle pusher 19 to reset, facilitating the next suture use. The combined use of the structures effectively improves the working efficiency of suturing, and prevents the problem of easy needle breakage during suturing, making the needle have better stability when being pushed out for suturing, and the direction of suture puncture is relatively easy to control. The combined use of the structures makes the device safer, and the structure is simple, facilitating popularization and use.

[0053] The working principle of the technical solution provided by the present invention is as follows:

[0054] During use, first prepare the instruments, tools, and consumables required for TKA surgery, such as knee replacement surgical instrument sets, prostheses, bone cement mixing equipment, needles and threads for conventional suturing, etc., to ensure the completeness and normal operating condition of the surgical equipment and materials. Then perform the TKA surgery normally. During the surgery, once a tear of the femoral insertion of the MCL is found, such as observing abnormalities during the release or traction process, immediately suspend the further operation of the TKA surgery and start treating the tear of the femoral insertion of the MCL. Place the first limiting framework 1 on the posterior side of the patient's leg away from the knee, and align the convex part of the first limiting framework 1 with the bent part of the patient's leg. Subsequently, place the second limiting framework 2 on the anterior side of the patient's leg near the knee, and align the convex part of the second limiting framework 2 with the bent part of the patient's leg. Then, respectively pass both sides of the strap body 3 through the first lightening slot 4 and the second lightening slot 5. Subsequently, pull the strap body 3 to bring the first limiting framework 1 and the second limiting framework 2 closer. After adjusting the distance between the first limiting framework 1 and the second limiting framework 2 to the required size, bend both sides of the strap body 3, and use the Velcro on the strap body 3 to fix the two ends of the strap body 3. Use the first limiting framework 1, the second limiting framework 2, and the strap body 3 to limit the patient's leg, so that the patient's leg is in a better surgical operation angle. Subsequently, fix the top of the reinforcing strip 10 in the first limiting buckle 8 and the limiting block 26 thereon, and make the first limiting buckle 8 tightly press the edge block 13. Insert the bottom of the reinforcing strip 10 into the limiting slot 25, and insert the limiting block 26 into the buffer cavity 14. At this time, the reinforcing strip 10 is in a hook shape, and the bottom of the reinforcing strip 10 assists in limiting and guiding the limiting rod 17. Subsequently, the user holds the handle body 16, and with the assistance of the limiting and guiding of the reinforcing strip 10, pushes the push rod 18, so that the spring body 23 is compressed, and the push needle 19 pushes the suture needle 21 out from the gap formed by the two rollers 20 for one suture. Subsequently, release the push rod 18, the spring body 23 rebounds, and the push rod 18 returns to its original position. Then use the stapler to pull out the suture needle 21 to complete one suture. When performing the suture, use the existing suitable specification suture thread on the operating table, such as high-strength and biocompatible suture thread, to perform mesh suture on the femoral insertion of the MCL. When suturing, start from the edge of the avulsed tissue, and according to the predetermined suture method, make the suture threads intersect with each other to form a mesh structure, ensuring the accurate reduction and tight connection of the avulsed tissue. During the suture process, pay attention to adjusting the tension of the suture thread so that the MCL tissue returns to its normal anatomical position under appropriate tension. Subsequently, prepare the bone cement, and according to the product instructions, use the existing bone cement mixing equipment in the operating room to prepare the bone cement. When the bone cement is at an appropriate viscosity, fill it around the mesh suture site, ensure that the bone cement fully wraps the suture structure, and at the same time avoid the bone cement entering the joint cavity or affecting the surrounding important tissues. Existing bone cement filling tools such as syringe-type fillers can be used to evenly distribute the bone cement at the repair site and perform appropriate shaping according to needs.Before the bone cement is completely cured, continue to complete the prosthesis implantation step in the TKA surgery. Place the prosthesis in the appropriate position so that it fits tightly with the MCL repair structure wrapped by the bone cement to ensure the stability of the prosthesis and the coordination with the surrounding tissues. During the prosthesis implantation process, pay attention to adjusting the angle and position of the prosthesis to achieve the best joint mechanical performance, and operate with conventional prosthesis implantation instruments. Carefully check the repair and implantation effects to ensure good bone cement curing, correct prosthesis position, and firm repair of the MCL femoral attachment point. The inspection content includes the stability of the repair structure, the mobility of the prosthesis, the integrity of the surrounding tissues, etc. Clean the surgical area, remove excess bone cement, sutures and other debris, and close the wound after thorough hemostasis. Then, remove the bottom of the reinforcing strip 10 from the limiting groove 25 and the limiting block 26, fix the bottom of the reinforcing strip 10 on the second limiting buckle 9 and the limiting block 26 thereon, unfold the reinforcing strip 10 and attach it to the outer wall of the second limiting skeleton 2 to enhance the support effect on the second limiting skeleton 2. Adjust the tightness of the strap body 3 to adjust the first limiting skeleton 1 and the second limiting skeleton 2 to a comfortable nursing angle, so that the device is used for postoperative care. During the fixation using the first limiting skeleton 1, the second limiting skeleton 2 and the strap body 3, regularly check the fixation effect of the brace and the comfort of the patient, and make appropriate adjustments if necessary.

[0055] The present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, in order to avoid unnecessary confusion to the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping, characterized in that, It includes a first limiting framework, on one side of which a second limiting framework is installed, and strap bodies are installed on both sides of the first limiting framework and the second limiting framework; An auxiliary limiting mechanism, which is used to strengthen the stability of the device structure and assist in surgical suture, and the auxiliary limiting mechanism is connected to the second limiting framework.

2. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 1, wherein The auxiliary limiting mechanism includes a first limiting buckle installed on the second limiting framework, a second limiting buckle installed at the bottom of the second limiting framework, a reinforcing strip installed between the first limiting buckle and the second limiting buckle, a concave part is provided on the reinforcing strip, and side blocks are provided at both end parts of the reinforcing strip.

3. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 1, wherein, First lightweight grooves are equidistantly formed on the first limiting framework, second lightweight grooves are equidistantly formed on the second limiting framework, and both the first limiting framework and the second limiting framework are arc-shaped structures protruding towards the reinforcing strip.

4. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 1, characterized in that, Edge strips are provided on both sides of the reinforcing strip, and buffer cavities are formed in the edge strips.

5. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 1, wherein The cross-section of the strap body is X-shaped, magic tapes are provided at both end parts of the strap body, and the strap body is made of polyester fiber material.

6. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 4, wherein, A limiting groove is formed on the second limiting framework, and limiting blocks adapted to the shape of the buffer cavity are fixedly connected to both sides of the limiting groove respectively, and limiting blocks adapted to the shape of the buffer cavity are fixedly connected to both the first limiting buckle and the second limiting buckle.

7. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 2, wherein, The first limiting framework and the second limiting framework are made of plastic material, the limiting blocks are made of rubber material, and a third weakening part is formed in the reinforcing strip close to the center direction of the second limiting framework.

8. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 2, characterized in that, A handle body is provided on the side of the second limiting framework away from the first limiting framework, a limiting rod is fixedly connected to the side of the handle body close to the second limiting framework, a push rod is installed on the limiting rod, a push needle is installed on the side of the push rod close to the second limiting framework, a roller is installed on the side of the limiting rod close to the second limiting framework through a rotating shaft, a suture needle is installed between the two rollers, an activity groove is formed on the limiting rod, a spring body is horizontally installed in the activity groove, and a convex part is provided on the side of the push rod close to the handle body.

9. The iatrogenic MCL femoral insertion avulsion repair device based on mesh suture and bone cement wrapping according to claim 2, wherein, A first weakening part is formed at a position close to the center of the first limiting framework, a second weakening part is formed at a position close to the center of the second limiting framework, and the shapes of the first limiting framework and the second limiting framework are adapted to the shape of the human leg.

10. A method for repairing iatrogenic avulsion of the femoral attachment point of the MCL based on mesh suture and bone cement wrapping, using the iatrogenic avulsion repair device for the femoral attachment point of the MCL based on mesh suture and bone cement wrapping according to any one of claims 1-9, characterized in that, It includes the following steps: Step 1: First, place the first limiting framework at the rear side of the patient's leg away from the knee, and align the protruding part of the first limiting framework with the bent part of the patient's leg. Subsequently, place the second limiting framework at the front side of the patient's leg close to the knee, and align the protruding part of the second limiting framework with the bent part of the patient's leg; Step 2: Then, pass both sides of the strap body through the first lightweight slot and the second lightweight slot respectively. Subsequently, pull the strap body to bring the first limiting frame and the second limiting frame closer. After adjusting the distance between the first limiting frame and the second limiting frame to the required size, bend both sides of the strap body and fix the two ends of the strap body using the Velcro on the strap body. Step 3: Subsequently, fix the top of the reinforcing strip within the first limiting buckle and the limiting block on the first limiting buckle. Insert the bottom of the reinforcing strip into the limiting slot and make the limiting block inserted into the buffer cavity. At this time, the reinforcing strip is in a hook shape, and the bottom of the reinforcing strip assists in limiting and guiding the limiting rod. Step 4: Subsequently, the user holds the handle body and pushes the push rod, causing the spring body to be compressed. The push rod pushes the push needle to push the suture needle out from the gap formed by the two rollers for one suture. Then, release the push rod, the spring body rebounds, and the push rod returns to its original position. Then, use the stapler to pull out the suture needle to complete one suture. Step 5: After sewing the iatrogenic MCL femoral insertion point wrapped with bone cement into a net shape, remove the bottom of the reinforcing strip from the limiting slot and the limiting block, and fix the bottom of the reinforcing strip on the second limiting buckle and the limiting block on the second limiting buckle.

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