A medical device for repairing a iatrogenic mcl femoral enthesis avulsion based on mesh suture and cement wrapping

Abstract

The application provides a medical MCL femoral insertion avulsion repair instrument and method based on mesh suture and bone cement wrapping, and belongs to the technical field of femoral insertion avulsion repair instruments. The instrument comprises a first limiting framework, one side of the first limiting framework is provided with a second limiting framework, and the two sides of the first limiting framework and the second limiting framework are provided with a binding body; an auxiliary limiting mechanism is used for strengthening the stability of the device structure and assisting in suture surgery, and the auxiliary limiting mechanism is connected with the second limiting framework. The auxiliary limiting mechanism can effectively avoid the increase of instrument loss and suture needle fracture risk, effectively improve the working efficiency of suture, and the cooperation of the first limiting framework, the second limiting framework and the binding body can also well limit the legs of the patient during the operation, and can also protect the legs of the patient after the operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of femoral stop point avulsion repair instruments, in particular to a medical MCL femoral stop point avulsion repair instrument and method based on mesh suture and bone cement wrapping. BACKGROUND

[0002] For medical MCL femoral stop point avulsion, the existing technology mainly has anchor suture, screw block fixation and special steel plate fixation methods.

[0003] Among them, anchor suture is a common way, and the operation first exposes the avulsion site, implants an anchor in the femur, and connects the avulsed tissue and the anchor with a suture to fix it. However, this method has many drawbacks, such as the anchor implantation can easily damage the bone, the fixation effect is poor in osteoporotic patients, and the suture grip is limited, so the joint activity stress can easily cause the suture to tear, causing the MCL to displace again. Screw block fixation is to screw through the avulsed ligament, and then screw into the bone after placing the block. However, the screw anchoring force is insufficient and easy to loosen in osteoporosis, the block affects the mechanical environment and causes uneven stress, and the anterior edge of the ligament is not well fixed, which can easily open during knee flexion, affecting stability. And in the process of suture operation, if a needle holder is used to directly hold a thick needle to suture the ligament and bone, long-term use can cause the needle holder to lose its holding ability, and the force direction cannot be guaranteed, which can easily cause the suture needle to break in the bone. Therefore, the present application provides a medical MCL femoral stop point avulsion repair instrument and method based on mesh suture and bone cement wrapping to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a medical MCL femoral stop point avulsion repair instrument and method based on mesh suture and bone cement wrapping, which can effectively avoid the increase in instrument wear and tear and suture needle breakage risk, effectively improve the working efficiency of suture, and use the cooperation of the first limiting framework, the second limiting framework and the belt body to effectively limit the patient's leg during surgery, and also protect the patient's leg after surgery. The fixing strength and stability of the device are significantly improved, and the above settings can solve the problem of poor safety of the existing suture method.

[0005] To solve the above technical problems, the present application provides the following technical scheme:

[0006] A medical MCL femoral stop point 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 a belt body is installed on both sides of the first limiting framework and the second limiting framework;

[0007] An auxiliary limiting mechanism is used to strengthen the stability of the device structure and assist in suture surgery.

[0008] Optionally, the auxiliary limiting mechanism comprises a first limiting buckle mounted on the second limiting framework, the bottom of the second limiting framework is provided with a second limiting buckle, a reinforcing strip is mounted between the first limiting buckle and the second limiting buckle, the reinforcing strip is provided with a recess, and the two side ends of the reinforcing strip are provided with edge blocks.

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

[0010] Optionally, the two sides of the reinforcing strip are provided with edge strips, and the edge strips are provided with buffer cavities.

[0011] Optionally, the cross section of the binding strap body is X-shaped, the two side ends of the binding strap body are provided with Velcro, and the binding strap body is made of polyester fiber material.

[0012] Optionally, a limiting groove is arranged on the second limiting framework, limiting blocks matched with the shape of the buffer cavity are fixedly connected to the two sides of the limiting groove, and limiting blocks matched with the shape of the buffer cavity are fixedly connected to 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 arranged on the reinforcing strip close to the center of the second limiting framework.

[0014] Optionally, a handle body is arranged 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 mounted on the limiting rod, a push needle is mounted on the side of the push rod close to the second limiting framework, rollers are mounted on the side of the limiting rod close to the second limiting framework through pivots, a suture needle is mounted between the two rollers, an active groove is arranged on the limiting rod, a spring body is transversely mounted in the active groove, and a convex portion is arranged on the side of the push rod close to the handle body.

[0015] Optionally, a first weakening portion is arranged on the first limiting framework close to the center position, a second weakening portion is arranged on the second limiting framework close to the center position, and the shapes of the first limiting framework and the second limiting framework are matched with the shape of a human leg.

[0016] A medical MCL femoral stop point avulsion repair method based on mesh suture and bone cement wrapping, using a medical MCL femoral stop point avulsion repair instrument based on mesh suture and bone cement wrapping, the method comprises the following steps:

[0017] Step one: first, place the first limiting framework on the back side of the patient's leg away from the knee, and align the protruding part of the first limiting framework with the curved part of the patient's leg, then place the second limiting framework on the front side of the patient's leg close to the knee, and align the protruding part of the second limiting framework with the curved part of the patient's leg;

[0018] Step two: then pass the two sides of the belt body through the first lightened slot and the second lightened slot respectively, then pull the belt body to close the first limiting framework and the second limiting framework, adjust the distance between the first limiting framework and the second limiting framework to the required size, then bend the two sides of the belt body, and fix the two ends of the belt body using the magic tape on the belt body;

[0019] Step three: then 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 insert the limiting block into the buffer cavity, at this time, the reinforcing strip is in the shape of a hook, and the bottom of the reinforcing strip assists in limiting and guiding the limiting rod;

[0020] Step four: then 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 of the gap formed by the two rollers, and a suture is performed, then the push rod is released, the spring body is restored, and the push rod is returned to the original position, then the suture needle is pulled out to complete a suture using the suture device;

[0021] Step five: after the medical MCL femoral stop point sutured into a mesh by bone cement wrapping, the bottom of the reinforcing strip is removed from the limiting slot and the limiting block, and the bottom of the reinforcing strip is fixed on the second limiting buckle and the limiting block on the second limiting buckle.

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

[0023] In the above scheme, by setting the auxiliary limiting mechanism, not only can effectively avoid the risk of instrument loss and suture fracture increase, but also effectively enhance the working efficiency of suture, and the cooperation of the first limiting framework, the second limiting framework and the belt body can also well limit 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. Compared with the traditional method, the mesh suture structure wrapped with bone cement can better resist stress in various directions, greatly reducing the risk of MCL injury again, and significantly improving the joint stability. And for osteoporotic patients, it provides a more effective solution. The anchoring effect of bone cement in osteoporotic bone ensures the stability of the repair structure, and the mesh suture further enhances the strength of the overall structure, improving the treatment success rate of such patients. And the joint function is better recovered, through integrated design, the prosthesis and 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 existence of the prosthesis also provides certain mechanical environment support for the MCL repair, which helps the patient to recover the joint function faster and better after the operation, and reduces complications. Prolong the service life of the repair structure, and the structure of the device is simple, the cooperation between the structures makes the practicality of the device better, and it is more convenient and fast to use.

[0024] By providing a reinforcing strip in the auxiliary limiting mechanism, not only can the reinforcing strip be deployed on the second limiting framework, enhancing the stability of the second limiting framework, but also the reinforcing strip has better limiting effect when used in surgical suture, and the use effect of the auxiliary limiting mechanism is better through the cooperation of the structures, and the structure is simple and convenient to use.

[0025] By providing a first limiting buckle, a second limiting buckle, a limiting slot and a limiting block in the auxiliary limiting mechanism, not only can the first limiting buckle and the second limiting buckle quickly limit the two side ends of the reinforcing strip, but also the reinforcing strip can be quickly installed on the second limiting framework for use, the cooperation of the buffer cavity and the limiting block makes the reinforcing strip can be more stably installed on the first limiting buckle and the second limiting buckle, and the reinforcing strip can also be quickly and stably installed in the limiting slot during the operation, and the cooperation 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 setting the push rod and the roller in the auxiliary limiting mechanism, the handle body can be held by hand, two fingers push the push rod, the push rod drives the push pin to move along the outer wall of the limiting rod, the spring body is compressed in the movable groove, the push pin pushes the suture needle in the movement process, the suture needle is pushed out from the two rollers, so that the suture needle is sutured once, and in the process of pushing out the suture needle, the roller rotates under the influence of the friction force, then the push rod is released, the spring body is restored, the push rod and the push pin are reset, so as to facilitate the next suture use, the cooperation between the structures effectively increases the working efficiency of the suture, and prevents the problem of easy needle breakage in the suture process, so that the needle is stable when sutured, and the direction of suture puncture is relatively easy to control, the safety of the device is better when the structures are used together, and the cooperation between 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, the device can keep the patient's leg in a good surgical angle through the cooperation of the auxiliary limiting mechanism and the components therein, effectively reduce the loss of suture needles during suture, and the safety of the device is better, the structure of the device is simple, convenient and fast to use, the production cost of the device is low, the practicality is good, and the device is convenient to popularize and use. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

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

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping; Figure 1 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping;

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping; Figure 4 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the medical device in use during the operation of a medical MCL femoral enthesis avulsion repair instrument based on mesh suture and bone cement wrapping; Figure 6Enlarged structural schematic view at C;

[0036] Figure 8 First perspective view of the holder;

[0037] Figure 9 Second perspective view of the holder;

[0038] Figure 10 is Figure 9 Enlarged structural schematic view at D;

[0039] Figure 11 is a medical MCL femoral stop point avulsion repair instrument based on mesh suture and bone cement wrapping.

[0040] Reference signs:

[0041] 1, first limiting framework; 2, second limiting framework; 3, belt body; 4, first lightening groove; 5, second lightening 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, movable groove; 23, spring body; 24, convex part; 25, limiting groove; 26, limiting block.

[0042] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in this specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0043] A medical MCL femoral stop point avulsion repair instrument and method based on mesh suture and bone cement wrapping provided by the present application will be described in detail below in combination with the drawings and specific embodiments. It should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to describe the embodiments in more detail, and are not intended to specifically limit the present application.

[0044] It is to be appreciated that the use of any of the following terms "one embodiment," "an embodiment," "some embodiments," "one example," "an example," "some examples," and the like, are not intended to limit the scope of the application to a specific embodiment or embodiment, nor imply that all embodiments include the discussed feature, benefit and / or characteristic. Rather, these terms are used herein as a means of broadening the scope of a claimed application.

[0045] In general, the terminology or nomenclature used herein is understood in at least part from the context in which the terminology or nomenclature is used. For example, the terminology "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures or characteristics in the plural, depending at least in part on the context in which the terminology is used. Additionally, the terminology "based on" is understood as not necessarily being constrained to a set of exclusive factors, but rather, can instead be permissive and allow for existence of other factors not necessarily explicitly described.

[0046] It is to be understood that the terms "on," "over," and "above," in the context of the present application, are to be interpreted in the broadest reasonable 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 "over" or "above" not only means the meaning of being "over" or "above" something but also can include the meaning of being "over" or "above" something with no intervening features or layers therebetween.

[0047] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0048] As Figure 1 and Figure 2As shown, the embodiment of the present application provides a medical MCL femoral enthesis avulsion repair instrument and method based on mesh suture and cement wrapping, comprising a first limiting framework 1, a second limiting framework 2 is installed on one side of the first limiting framework 1, and a belt body 3 is installed on both sides of the first limiting framework 1 and the second limiting framework 2; an auxiliary limiting mechanism is used to strengthen the stability of the device structure and assist in surgical suture, and the auxiliary limiting mechanism is connected with the second limiting framework 2, the device combines mesh suture and cement wrapping to form a composite repair structure, fully utilizes the advantages of both, and improves the fixation stability and stress dispersion capacity. Thus, it is suitable for special bone conditions: especially for osteoporotic patients, and the bone cement can provide reliable anchoring and stress transmission in the osteoporotic bone, overcoming the problem of difficulty in fixation in the case of osteoporosis in the traditional method, and during the process of prosthesis implantation, considering the mechanical requirements after MCL repair, the organic combination of the two is realized through cement wrapping, improving the long-term treatment effect. The combined action of mesh suture and cement wrapping makes the stress evenly distributed, avoiding the common stress concentration problem in traditional repair methods, reducing the risk of local tissue damage and repair structure failure. And the use of the auxiliary limiting mechanism and each component in it can also effectively avoid the risk of instrument wear and needle breakage, while effectively improving the working efficiency of suture, the specific structure and working principle of the auxiliary limiting mechanism are described below, and the use of the first limiting framework 1, the second limiting framework 2 and the belt body 3 can also well limit the patient's leg during the operation. The device can also protect the patient's leg after the operation, the device has a simple structure, is convenient and fast to use, and has a relatively low cost, which is convenient for promotion and use.

[0049] The first limiting framework 1 is provided with first lightweight grooves 4 at equal intervals, which can not only reduce the weight of the first limiting framework 1, but also enhance the deformation capacity of the first limiting framework 1. The second limiting framework 2 is provided with second lightweight grooves 5 at equal intervals, which can not only reduce the weight of the second limiting framework 2, but also enhance the deformation capacity of the second limiting framework 2. The first limiting framework 1 and the second limiting framework 2 are both arc-shaped structures protruding towards the reinforcing strip 10, which is convenient for auxiliary limiting the bending angle of the patient's leg, thereby facilitating the surgical operation of the staff. The cross section of the binding body 3 is X-shaped, which is convenient for stably connecting the first limiting framework 1 and the second limiting framework 2 together. The two side ends of the binding body 3 are provided with magic tapes, which is convenient for quickly fixing the two side ends of the binding body 3. The binding body 3 is made of polyester fiber material, which makes the material of the binding body 3 relatively soft and comfortable. The first limiting framework 1 is provided with a first weakening portion 6 near the center position. The second limiting framework 2 is provided with a second weakening portion 7 near the center position. The shapes of the first limiting framework 1 and the second limiting framework 2 are adapted to the shape of the human leg. The first weakening portion 6 is arranged to deform first from the first weakening portion 6 under the action of external force. The second weakening portion 7 is arranged to deform first from the second weakening portion 7 under the action of external force. The shape design of the first limiting framework 1 and the second limiting framework 2 makes the device more conformable to the leg contour of the patient during use, thereby better limiting the device and better making the patient feel comfortable.

[0050] As shown in Figures 1 to 7 and Figure 11 , the auxiliary limiting mechanism includes a first limiting buckle 8 mounted on the second limiting framework 2. The bottom of the second limiting framework 2 is provided with a second limiting buckle 9. The first limiting buckle 8 and the second limiting buckle 9 are provided with a reinforcing strip 10. The reinforcing strip 10 is provided with a recess 11. The two side ends of the reinforcing strip 10 are provided with edge blocks 13. The first limiting buckle 8 and the second limiting buckle 9 can quickly limit the two side ends of the reinforcing strip 10, thereby quickly installing the reinforcing strip 10 on the second limiting framework 2 for use, as shown in Figure 11 , the reinforcing strip 10 is arranged on the second limiting framework 2, which can enhance the stability of the second limiting framework 2, thereby making the device have better limiting and supporting effect on the patient's leg. Adjusting the tightness of the binding body 3 can make the device suitable for patients with different leg shapes, thereby making the device have a wider range of application. The use of the recess 11 can make the reinforcing strip 10 have better limiting effect during surgical suturing. The use of the edge blocks 13 can make the two side ends of the reinforcing strip 10 be quickly installed and fixed on the first limiting buckle 8 and the second limiting buckle 9. Moreover, the structure is simple, and the cooperation between the structures further makes the device have better practicality.

[0051] Two sides of the reinforcing strip 10 are provided with the edge strip 15, the thickness of the edge strip 15 is greater than the thickness of the reinforcing strip 10, the reinforcing strip 10 and the edge strip 15 are integrally formed, the setting of the edge strip 15 makes the strength of the reinforcing strip 10 better, the buffer cavity 14 is arranged in the edge strip 15, the limiting slot 25 is arranged on the second limiting frame 2, the limiting blocks 26 matched with the shape of the buffer cavity 14 are fixedly connected on two sides of the limiting slot 25, the limiting blocks 26 matched with the shape of the buffer cavity 14 are fixedly connected on the first limiting buckle 8 and the second limiting buckle 9, the cooperation of the buffer cavity 14 and the limiting block 26 makes the reinforcing strip 10 more stably installed on the first limiting buckle 8 and the second limiting buckle 9, and meanwhile makes the reinforcing strip 10 quickly and stably installed at the limiting slot 25 during the operation, the first limiting frame 1 and the second limiting frame 2 are made of plastic material, the plastic material has good deformation ability, and further the deformation ability of the first limiting frame 1 and the second limiting frame 2 is further enhanced, 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 arranged in the buffer cavity 14 arranged on the reinforcing strip 10, and further the end of the reinforcing strip 10 is fixed at the required position, the third weakening part 12 is arranged on the reinforcing strip 10 in the direction close to the center of the second limiting frame 2, through the setting of the third weakening part 12, the reinforcing strip 10 is more easily deformed at the third weakening part 12 under the action of external force, and further the reinforcing strip 10 is quickly adjusted in different use states.

[0052] As Figure 1 and Figures 8 to 10As shown, the second limiting framework 2 is provided with a handle body 16 of a clamping device on the side away from the first limiting framework 1, the handle body 16 is fixedly connected with a limiting rod 17 on the side close to the second limiting framework 2, a push rod 18 is installed on the limiting rod 17, the two limiting rods 17 and the handle body 16 form a scissor structure, a push needle 19 is installed between the two limiting rods 17 and on the side of the push rod 18 close to the second limiting framework 2, a roller 20 is installed on the side of the limiting rod 17 close to the second limiting framework 2 through a rotating shaft, a suture needle 21 is installed between the two rollers 20 and between the two limiting rods 17, an active slot 22 is formed in the limiting rod 17, a spring body 23 is transversely installed in the active slot 22, the push rod 18 is provided with a convex part 24 on the side close to the handle body 16, the suture needle 21 is previously placed between the two rollers 20, and then when the suture is needed during the operation, the handle body 16 is held, two fingers push the push rod 18, the push rod 18 penetrates through the two limiting rods 17, the push rod 18 is slidingly connected in the active slot 22, and 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 push needle 19 to move along the outer wall of the limiting rod 17, the push rod 18 presses the spring body 23, the spring body 23 is compressed in the active slot 22, one end of the push needle 19 contacts the suture needle 21, the suture needle 21 is pushed in the movement process of the push needle 19, the suture needle 21 is pushed out of the two rollers 20, so that the suture needle 21 is sutured once, in the process that the suture needle 21 is pushed out, the suture needle 21 is affected by the friction force, the roller 20 rotates, then the push rod 18 is released, the spring body 23 is restored, the push rod 18 and the push needle 19 are reset, the next suture use is facilitated, the cooperation between the structures effectively increases the working efficiency of the suture, and the problem that the needle is easily broken in the suture process is prevented, so that the stability of the needle is better when the needle is pushed out for suture, and the direction of the suture puncture is relatively easy to control, the safety of the device is better when the structures are cooperated, and the structure is simple, so it is convenient to popularize and use.

[0053] The working principle of the technical scheme provided by the application is as follows:

[0054] In use, first prepare the instruments, tools and consumables required for TKA surgery, such as a knee replacement surgery instrument kit, prosthesis, bone cement mixing equipment, conventional suture needle and thread, etc., to ensure the completeness and normal operating state of the surgical equipment and materials. Then normally perform TKA surgery. During the operation, once the MCL femoral insertion avulsion is found, such as during the observation of abnormalities during release or traction, immediately suspend further operation of the TKA surgery and begin to handle the MCL femoral insertion avulsion injury. Place the first limiting framework 1 on the back side of the patient's leg away from the knee, and align the protruding part of the first limiting framework 1 with the curved part of the patient's leg. Then place the second limiting framework 2 on the front side of the patient's leg close to the knee, and align the protruding part of the second limiting framework 2 with the curved part of the patient's leg. Then pass the two sides of the belt body 3 through the first lightened slot 4 and the second lightened slot 5 respectively, and then pull the belt body 3 to close the first limiting framework 1 and the second limiting framework 2. After adjusting the distance between the first limiting framework 1 and the second limiting framework 2 to the desired size, bend the two ends of the belt body 3 and fix them with the magic tape on the belt body 3. Use the first limiting framework 1, the second limiting framework 2 and the belt body 3 to limit the patient's leg to a better surgical operating angle. Then fix the top of the reinforcing strip 10 in the first limiting buckle 8 and the limiting block 26 thereon, and tightly press the edge block 13 with the first limiting buckle 8. Insert the bottom of the reinforcing strip 10 into the limiting slot 25 and the limiting block 26 into the buffer cavity 14. At this time, the reinforcing strip 10 is in the shape of a hook, and the bottom of the reinforcing strip 10 assists in limiting and guiding the limiting rod 17. Then the user holds the handle body 16 and pushes the push rod 18 with the help of the limiting and guiding of the reinforcing strip 10, so that the spring body 23 is compressed, the push needle 19 pushes the suture needle 21 out of the gap formed by the two rollers 20, and a suture is performed. Then release the push rod 18, the spring body 23 rebounds, and the push rod 18 returns to its original position. Then use the suture needle 21 to complete a suture. Use the existing appropriate specification of suture thread on the operating table, such as high-strength and biocompatible suture thread, to perform mesh suture on the MCL femoral insertion during suture. Start from the edge of the avulsed tissue and follow the predetermined suture method to interweave the suture threads to form a mesh structure, ensuring that the avulsed tissue is accurately reduced and tightly connected. During the suture process, pay attention to adjust the tension of the suture thread to make the MCL tissue recover to its normal anatomical position under appropriate tension. Then prepare the bone cement and adjust it according to the product instructions using the existing bone cement mixing equipment in the operating room. When the bone cement is at the appropriate consistency, fill it around the mesh suture site to ensure that the bone cement fully wraps the suture structure, while avoiding the entry of bone cement into the joint cavity or affecting the surrounding important tissues. Use the existing bone cement filling tools such as syringe filler, etc. to evenly distribute the bone cement at the repair site and shape it as needed.Before the bone cement is completely solidified, the prosthesis implantation step in the TKA surgery is continued. The prosthesis is placed in the appropriate position, closely fitting the MCL repair structure wrapped by the bone cement, ensuring the stability of the prosthesis and the coordination with the surrounding tissues. During the prosthesis implantation process, attention should be paid to adjusting the angle and position of the prosthesis to achieve the best joint mechanics performance, and conventional prosthesis implantation instruments are used for operation. Carefully check the repair and implantation effect to ensure that the bone cement is solidified well, the prosthesis is in the correct position, and the MCL femoral stop is repaired firmly. 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, suture threads and other debris, and close the wound after thorough hemostasis. Then, the bottom of the reinforcing strip 10 is removed from the limiting groove 25 and the limiting block 26, and the bottom of the reinforcing strip 10 is fixed on the second limiting buckle 9 and the limiting block 26 thereon, so that the reinforcing strip 10 is unfolded and attached to the outer wall of the second limiting framework 2, providing support and reinforcement to the second limiting framework 2. Adjust the tightness of the belt body 3 to make the first limiting framework 1 and the second limiting framework 2 adjust to a comfortable nursing angle, so that the device is used for postoperative care. During the fixation period of the first limiting framework 1, the second limiting framework 2 and the belt body 3, the fixation effect of the brace and the comfort of the patient are regularly checked, and appropriate adjustments can be made.

[0055] The present application encompasses any substitutions, modifications, equivalent methods and solutions made within the spirit and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in the following preferred embodiments of the present application, and the present application can also be fully understood without the description of these details to those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits, etc. are not described in detail.

[0056] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can also be made, which should be considered as the protection scope of the present application.

Claims

1. A device for repairing iatrogenic MCL femoral insertion avulsion based on mesh sutures and bone cement encapsulation, characterized in that, It includes a first limiting frame, a second limiting frame is installed on one side of the first limiting frame, and strap bodies are installed on both sides of the first limiting frame and the second limiting frame. An auxiliary limiting mechanism is provided to enhance the stability of the device structure and assist in surgical suturing. The auxiliary limiting mechanism is connected to the second limiting skeleton. The auxiliary limiting mechanism includes a first limiting buckle installed on the second limiting frame, a second limiting buckle installed at the bottom of the second limiting frame, a reinforcing strip installed between the first limiting buckle and the second limiting buckle, the reinforcing strip having a recess, and side blocks at both ends of the reinforcing strip.

2. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 1, characterized in that, The first limiting frame has a first lightweight groove equally spaced on it, and the second limiting frame has a second lightweight groove equally spaced on it. Both the first limiting frame and the second limiting frame are arc-shaped structures that protrude toward the direction of the reinforcing strip.

3. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 1, characterized in that, Both sides of the reinforcing strip are provided with side strips, and buffer cavities are formed in the side strips.

4. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 1, characterized in that, The cross-section of the strap body is X-shaped, and both ends of the strap body are provided with Velcro. The strap body is made of polyester fiber material.

5. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 3, characterized in that, The second limiting frame has a limiting groove, and limiting blocks adapted to the shape of the buffer cavity are fixedly connected to both sides of the limiting groove. The first limiting buckle and the second limiting buckle are both fixedly connected to limiting blocks adapted to the shape of the buffer cavity.

6. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 1, characterized in that, The first and second limiting frames are made of plastic, the limiting block is made of rubber, and the reinforcing strip has a third weakening part near the center of the second limiting frame.

7. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 1, characterized in that, The second limiting frame has a handle body on the side away from the first limiting frame. A limiting rod is fixedly connected to the side of the handle body near the second limiting frame. A push rod is installed on the limiting rod. A push needle is installed on the side of the push rod near the second limiting frame. A roller is installed on the side of the limiting rod near the second limiting frame via a rotating shaft. A sewing needle is installed between the two rollers. A movable groove is opened on the limiting rod. A spring body is installed laterally in the movable groove. A protrusion is provided on the side of the push rod near the handle body.

8. The iatrogenic MCL femoral insertion avulsion repair device based on mesh sutures and bone cement encapsulation according to claim 1, characterized in that, The first limiting frame has a first weakening part near its center, and the second limiting frame has a second weakening part near its center. The shapes of the first limiting frame and the second limiting frame are adapted to the shape of the human leg.

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