Micro-momentum adjusting device of bone joint plate and use method of micro-momentum adjusting device

By designing a micromomentum adjustment device for the bone joint plate, the combination of damping elastic components and inserts can achieve flexible fitting and micro vibration treatment between the bone joint plate and the fracture site, solving the problem of insufficient blood supply caused by rigid fixation in traditional fracture treatment methods, promoting fracture healing and reducing the risk of re-fracture.

CN119970202APending Publication Date: 2025-05-13GUANGDONG UNIV OF TECH
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Patent Information

Application Number
CN202510209029.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

Traditional fracture treatment methods have insufficient blood supply at the fracture due to rigid fixation, which affects the recovery of bone tissue and increases the risk of poor bone healing or re-fracture. At the same time, the lack of micro vibration treatment has failed to achieve its due effect.

Method used

A micro momentum adjustment device for the bone joint plate is designed, including the bone plate main body, groove cavity, insert and damping elastic component. The side of the insert can be detached and connected to the damping elastic component. The insert and damping elastic component can only move slightly along the length of the bone joint plate to achieve the fit between the bone joint plate and the fracture, and adjust the micro momentum according to the fracture status.

Benefits of technology

By flexibly adjusting micromomentum, the fit between the bone junction plate and the fracture site is improved, the fracture healing is promoted, and the risk of poor bone healing or re-fracture is reduced. At the same time, micro vibration treatment is used to improve local blood supply and create a better healing environment.

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Abstract

The invention relates to the technical field of medical equipment, in particular to a micro-momentum adjusting device of a bone joint plate and a using method of the micro-momentum adjusting device. The device comprises a bone plate main body and a groove cavity, the groove cavity is formed in the plate body surface of the bone plate main body, the inner side wall of the groove cavity is sunken inwards to form an insertion groove and an insert, the insert is installed in the groove cavity, the side edge of the insert is embedded into the insertion groove, the side edge of the insert is detachably connected with a damping elastic assembly, and the damping elastic assembly is detachably connected with the inner side wall of the groove cavity. The damping elastic assembly abuts against the inner side wall face of the insertion groove, an installation hole is formed in the insert, a bone screw is inserted into the installation hole, the micro momentum of the bone joint plate can be flexibly adjusted through the micro momentum adjusting device of the bone joint plate, the bone joint plate can be effectively attached to the fracture position, and the micro momentum adjusting device has the advantage of being simple in structure.
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Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a micro-motion adjustment device for a bone grafting plate and a use method thereof. Background Art

[0002] Traditional fracture treatment methods generally use bone screws and bone plate bodies to fix fractures. Although these methods have achieved certain success in fracture fixation, there are several key technical problems: in order to ensure the connection and fixation of the bone plate body, the traditional fixation method is often too rigid. However, during the fracture recovery process, the fracture healing process will cause the position of the bone to change. However, because the bone screw is connected to the bone plate body, under the limiting effect of the bone screw combined with the bone plate body, excessive rigid fixation will lead to insufficient blood supply at the fracture during the healing process, which will affect the recovery ability of the bone tissue and increase the risk of poor bone healing or re-fracture. In addition, rigid fixation can also cause damage to the surrounding soft tissues, affecting the overall recovery of the patient. Micro-vibration has been shown to promote bone healing, improve local blood supply, and provide a softer healing environment for fractures. The lack of application of micro-vibration therapy has prevented traditional treatment methods from achieving their due effects. Therefore, the existence of these technical problems has led to the development of new bone plates to achieve more efficient, safe and personalized fracture treatment plans, promote patient recovery and improve treatment satisfaction. However, the current bone grafting plates with micro-motion function only have a fixed amount of micro-motion. In fact, the fracture state is not single, and a single amount of micro-motion affects the fracture recovery effect.

[0003] For example, Chinese patent CN111419375B relates to a bidirectional micro-motion locking bone plate body, which is composed of a bone plate body, a micro-motion block and a fixing screw. The micro-motion block is micro-movement fixed in a micro-motion hole, but the micro-motion block only generates micro-motion by setting the block in a hole with a larger space and generating micro-motion by the shaking of the block. Such micro-motion is fixed and cannot achieve more precise adaptive adjustment. Summary of the invention

[0004] The purpose of the present invention is to avoid the deficiencies in the prior art and provide a micro-motion adjustment device for a bone plate, which can flexibly adjust the micro-motion of the bone plate and make the bone plate effectively fit the fracture site, and has the advantage of simple structure.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A micro-motion adjustment device for a bone plate is provided, comprising:

[0007] Plate body,

[0008] A groove cavity is provided on the plate surface of the bone plate body, and the inner side wall of the groove cavity is recessed inward to form an insertion groove.

[0009] The insert is installed in the groove cavity, the side edge of the insert is embedded in the insertion groove, the side edge of the insert is detachably connected with a damping elastic component, and the damping elastic component abuts against the inner wall surface of the insertion groove,

[0010] The insert is provided with a mounting hole, and a bone screw is inserted into the mounting hole.

[0011] In some embodiments, a side edge of the insert is provided with a mounting opening, and the damping elastic component is snap-fitted with the mounting opening.

[0012] In some embodiments, the mounting opening is a blind groove, the damping elastic component includes a spring, a cover shell is provided at one end of the spring, the shell opening edge of the cover shell is buckled with the edge of the blind groove, and the other end of the spring is pressed by the cover shell and abuts against the inner wall surface of the groove cavity.

[0013] In some embodiments, the mounting hole is configured as a waist hole, and the damping elastic component is close to the end of the waist hole.

[0014] In some embodiments, the opening of the cover shell is turned outward to form a first hook, and the notch of the blind groove is turned inward to form a second hook, and the first hook is buckled with the second hook.

[0015] In some embodiments, the buckling surface of the first buckle hook is a bevel, the buckling surface of the second buckle hook is a bevel, and the buckling part between the opening of the cover shell and the notch of the blind groove forms a bevel connection.

[0016] In some embodiments, a sensor detection module is provided on the bone plate body, and the sensor detection module monitors the micro-motion at the fracture site in real time.

[0017] In some embodiments, the sensing detection module includes one or more of a piezoelectric sensor, a micro-electromechanical system sensor, a fiber optic sensor, and an in-situ wireless passive curved surface conformal strain sensor.

[0018] Beneficial effects of the micro-motion adjustment device of a bone plate of the present invention:

[0019] The present invention provides a micro-motion adjustment device for a bone plate, wherein the side edge of an insert is detachably connected to a damping elastic component, and a groove cavity for installing the insert is provided with an insertion groove, wherein the side edge of the insert and the damping elastic component are both inserted into the insertion groove, so that the insert and the damping elastic component can only micro-move along the length direction of the bone plate, so that the bone plate can fit the fracture site in time, thereby improving the treatment effect, and different damping elastic components can be removed or connected according to the fracture state, so that the damping elastic component, the insert and the bone plate body generate different micro-motions to adapt to different fracture injuries, wherein damping elastic components that can generate different micro-motions can also be arranged in the same bone plate body to achieve greater flexibility.

[0020] Also provided is a method for using the micro-motion adjustment device of the bone plate, which determines the recovery process and micro-motion according to the fracture status, selects a suitable damping elastic component, connects the damping elastic component to the insert, and then fixes the insert with the damping elastic component in the groove cavity by bone screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first visual structural schematic diagram of a micro-motion adjustment device for a bone graft plate according to an embodiment of the present invention.

[0022] Figure 2 It is a cross-sectional view of a micro-motion adjustment device for a bone plate according to an embodiment of the present invention.

[0023] Figure 3 It is a partially enlarged structural schematic diagram of a micro-motion adjustment device for a bone graft plate according to an embodiment of the present invention.

[0024] Figure 4 It is a partially enlarged structural schematic diagram of a micro-motion adjustment device for a bone graft plate according to an embodiment of the present invention.

[0025] Figure 5 It is a schematic structural diagram of a damping elastic component according to an embodiment of the present invention.

[0026] Figure 6 is a cross-sectional view of a damping elastic component according to an embodiment of the present invention.

[0027] Figure 7 It is a structural schematic diagram of the working state of the micro-motion adjustment device of the bone plate according to an embodiment of the present invention.

[0028] Reference numerals

[0029] 1. Bone plate body; 2. Groove cavity; 3. Insert; 4. Bone screw; 5. Blind groove; 6. Spring; 7. Cover shell; 8. Insert groove; 9. Mounting hole; 10. First hook; 11. Second hook; 12. Sensor detection module; 13. Damping elastic component; 14. Reinforcement rib; 15. Fracture. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] The terms used in the present invention are only for the purpose of describing specific implementation regulations, and are not intended to limit the present invention. The singular forms "a", "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] Example 1

[0034] The micro-motion adjustment device of the bone plate disclosed in this embodiment is as follows: Figure 1 to Figure 7 As shown, including:

[0035] The bone plate body 1 is made of materials including but not limited to stainless steel, titanium alloy and polymer materials (such as polylactic acid) to meet different strength and biocompatibility requirements.

[0036] The groove cavity 2 is provided on the plate surface of the bone plate main body 1.

[0037] The insert 3 is installed in the groove cavity 2, and a waist hole is opened on the insert 3, and a bone screw 4 is inserted into the waist hole.

[0038] The bone screw 4 is inserted into the waist hole and then into the bone plate body 1 to connect the insert 3 to the bone plate body 1. The difference between the long axis size of the waist hole and the bone screw 4 is within 1mm to 6mm, limiting axial and radial movement.

[0039] The side edge of the insert 3 is detachably connected with a damping elastic component 13 , the damping elastic component 13 is close to the end of the waist hole, and the damping elastic component 13 abuts against the inner wall surface of the groove cavity 2 .

[0040] Since the damping elastic component 13 is detachably connected to the side edge of the insert 3, different damping elastic components 13 can be replaced according to the fracture state, and then the micro-motion amount of the insert 3 in the groove cavity is different to adapt to different treatments. That is, the damping elastic component 13 enables the micro-motion structure to have a controllable axial micro-motion state, and can apply a pulling force to the bone screw 4 in a static state, thereby achieving a better fit at the fracture site 15. By selecting gradient damping of different lengths, the bone plate can adapt to various fracture types and ensure a reliable connection between the bone plate and the bone.

[0041] The present invention provides a micro-motion adjustment device for a bone plate, wherein the side edge of an insert 3 is detachably connected to a damping elastic component 13, and a groove cavity 2 for installing the insert 3 is provided with an insertion groove 8, and the side edge of the insert 3 and the damping elastic component 13 are both inserted into the insertion groove 8, so that the insert 3 and the damping elastic component 13 can only micro-move along the length direction of the bone plate, so that the bone plate can fit the fracture site 15 in time, thereby improving the treatment effect, and different damping elastic components 13 can be removed or connected according to the fracture state, so that the damping elastic component 13, the insert 3 and the bone plate main body 1 generate different micro-motions to adapt to different fracture injuries, wherein a damping elastic component 13 capable of generating different micro-motions can also be arranged in the same bone plate main body 1 to achieve greater flexibility.

[0042] In this embodiment, a mounting opening is provided on the side edge of the insert 3, and the damping elastic component 13 is snap-fitted with the mounting opening.

[0043] Specifically, the mounting opening is a blind groove 5, and a reinforcing rib 14 is arranged in the blind groove 5 to prevent the blind groove 5 from being compressed and deformed. The damping elastic component 13 includes a spring 6, and a cover shell is provided at one end of the spring 6. The edge of the shell opening of the cover shell is buckled with the edge of the blind groove 5, and the other end of the spring 6 is pressed by the cover shell 7 and abuts against the inner wall surface of the groove cavity 2.

[0044] Since one end of the spring 6 is arranged in the cover shell and the other end is connected to the groove cavity 2, when the cover shell is buckled into the notch of the blind groove 5, the spring 6 can be stably installed in the blind groove 5, and when the spring 6 needs to be removed, the spring 6 can be taken out by pressing the cover shell, which has the advantages of simple structure and easy operation.

[0045] The above-mentioned spring 6 can also be a micro-adjustment mechanism such as a spring, and the number can be tailored according to the patient's condition. Its materials include but are not limited to high-strength biosafety materials such as medical stainless steel, titanium alloy and certain high-performance polymers (such as polylactic acid and polyamide) to reduce rejection reactions in the body.

[0046] Furthermore, the connection structure between the cover shell 7 and the blind groove 5 provides a more stable environment for the spring 6. During the recovery process after fracture surgery, the bone plate can effectively alleviate the problem of insufficient local blood supply caused by overtightening of the screws. For example, in the postoperative fracture area, only a small amount of energy is needed to generate a soft and effective amplitude during micro-vibration treatment to promote the healing of the fracture area. The axial micro-motion distance is recommended to be 0.2mm to 1mm to ensure that while applying an appropriate micro-motion effect, the stability of the bone plate and the close contact of the fracture site 15 are not affected.

[0047] In this embodiment, the groove cavity 2 includes a first cavity, the two sides of the first cavity are connected to the second cavity, the insert 3 is arranged in the first cavity, and the cover shell 7 is slidably inserted in the second cavity.

[0048] The mounting hole 9 is configured as a waist hole, and the damping elastic component 13 is close to the end of the waist hole.

[0049] Since the hole on the insert 3 for installing the bone screw 4 is a waist hole, during the fracture recovery process, as the fracture heals, the gap at the fracture site 15 gradually decreases. At this time, the adjacent bone screws 4 gradually approach each other in the waist hole. Due to the stabilizing effect of the damping elastic component 13, the adjacent bone screws 4 can be stably close to each other, overcoming the problem that the traditional bone screws 4 are prone to loosening.

[0050] The size of the first cavity should be 0.2mm to 0.5mm larger than the outer diameter of the insert 3, the depth should be 3mm to 6mm, the width should be 5mm to 15mm, and the groove shape can be a straight groove, a V-shaped groove or any groove structure that can ensure stable sliding and effective support of the mating parts.

[0051] The overall dimensions of the cover shell 7 are: length 10 mm to 50 mm, width 5 mm to 15 mm, and thickness 2 mm to 5 mm.

[0052] In this embodiment, the opening of the cover shell is turned outward to form a first hook 10, and the notch of the blind slot 5 is turned inward to form a second hook 11, and the first hook 10 is buckled with the second hook 11.

[0053] The opening of the cover shell is turned outward to form a first hook 10, and the notch of the blind groove 5 is turned inward to form a second hook 11. When in use, the first hook 10 is buckled with the second hook 11 so that the cover shell can be stably buckled on the notch of the blind groove 5.

[0054] In this embodiment, the buckling surface of the first buckle hook 10 is an inclined surface, the buckling surface of the second buckle hook 11 is an inclined surface, and the buckling part between the opening of the cover shell and the notch of the blind groove 5 forms an inclined connection.

[0055] Since the connection between the first hook 10 and the second hook 11 is an inclined surface, the first hook 10 can be quickly separated from the second hook 11 by pressing the cover shell 7 .

[0056] This patent proposes a personalized intelligent micro-motion bone plate that achieves a flexible fixation method by introducing a gradient damping micro-motion module, providing a moderate pulling force, thereby reducing the risk of insufficient blood supply and promoting bone healing. The integrated real-time monitoring sensor can accurately evaluate the recovery status, allowing doctors to adjust the treatment plan in a timely manner. In addition, the bone plate uses biocompatible materials to reduce rejection reactions, while using micro-vibration therapy to improve local blood supply and create a better healing environment for patients. Overall, these innovations effectively solve the main problems in traditional fracture treatment methods, improving the treatment effect and the patient's recovery experience. That is, the optional damping elastic component 13 can accurately control the micro-motion amplitude and pulling force, ensure close fit at the fracture site 15 and promote bone healing, while avoiding blood flow obstruction caused by overtightening of the screws.

[0057] Example 2

[0058] Another significant issue is the inadequacy of existing equipment in monitoring postoperative recovery. Traditional monitoring methods usually rely on doctors' subjective observations and regular examinations, lacking real-time, accurate data. This lack of information makes it difficult to accurately assess the patient's recovery progress, which may lead to misjudgment of recovery status and delay necessary treatment or intervention. In addition, existing technologies often adopt standardized designs and lack personalized adaptability, making it difficult to meet the differences in fracture types, healing needs and physiological conditions among different patients, which may limit the effectiveness of treatment and patient satisfaction.

[0059] In this regard,

[0060] In this embodiment, a sensor detection module 12 is disposed on the bone plate body 1 , and the sensor detection module 12 monitors the micro-motion of the fracture site 15 in real time.

[0061] The sensor can obtain the real-time micro-motion of the fracture site 15, so that the healing process can be observed in real time based on the micro-motion, thereby improving the treatment effect.

[0062] In this embodiment, the sensing detection module 12 includes one or more of a piezoelectric sensor, a micro-electromechanical system sensor, an optical fiber sensor, and an in-situ wireless passive curved surface conformal strain sensor.

[0063] The sensor detection module 12 monitors the micro-motion of the fracture site 15 in real time and uses in-situ laser processing to achieve personalized customization, so that the bone plate can better adapt to the specific needs of the patient. Wireless passive sensing technology ensures stable monitoring, reduces dependence on external power supply, and avoids the risk of secondary surgery. Overall, the system provides a personalized, accurate and efficient treatment plan, improves postoperative recovery effects, and promotes the fracture healing process.

[0064] By online real-time monitoring of the fracture end micro-motion, a relationship model between sensor data and actual micro-motion is established to determine the patient's recovery degree and facilitate further treatment.

[0065] The types of the sensors include but are not limited to piezoelectric sensors, MEMS (micro-electro-mechanical systems) sensors, optical fiber sensors, and in-situ wireless passive curved surface conformal strain sensors.

[0066] Furthermore, in-situ manufacturing in sensors is an innovative method that uses laser technology for on-site material processing and manufacturing. It can perform real-time customized processing according to the conditions of different patients. It not only has extremely high precision, but also because in-situ laser processing is performed on demand, it can significantly reduce material waste and improve resource utilization. In addition, bone plates are manufactured in-situ according to the load state, which can better provide customized and personalized medical solutions.

[0067] Furthermore, wireless passivity in sensors is an emerging technology that is commonly used for wireless communication and signal transmission. This curved surface can effectively reflect, scatter or focus wireless signals without the need for external power or active electronic devices. It can work stably without power in the patient's body, which not only reduces the waste of resources, but also avoids the situation where the patient needs to undergo a secondary surgery to handle the sensor.

[0068] Furthermore, conformal strain sensors are sensors that can fit or conform to the surface of an object, and are mainly used to measure strain (i.e. the degree and direction of deformation of an object). The design of this sensor allows it to be flexibly combined with objects of various shapes and surfaces to provide accurate strain data. Because each patient's bone plate and fracture condition is different, conformal strain can better realize customized sensors and personalized design

[0069] Sensors such as wireless passive sensors and conformal strain sensors monitor the micro-motion of the fracture end in real time, and build a data model based on the patient's recovery status to help doctors adjust the treatment plan. In addition, in-situ laser processing technology enables the size and adaptability of the bone plate body 1101 to be customized according to the patient's bone morphology and load state, thereby achieving personalized treatment and improving postoperative recovery effects.

[0070] Example 3

[0071] This embodiment discloses a method for using the micro-motion adjustment device of the bone grafting plate of Embodiment 1, wherein the recovery process and micro-motion are judged according to the fracture status, a suitable damping elastic component 13 is selected, the damping elastic component 13 is connected to the insert 3, and then the insert 3 equipped with the damping elastic component 13 is fixed in the groove cavity 2 by the bone screw 4.

[0072] Example 4

[0073] Application in fracture repair surgery

[0074] In a complex femoral fracture repair surgery, the patient's femur had multiple fractures, and the doctor decided to use a personalized smart micro-motion plate to accelerate fracture healing. At the beginning of the operation, the doctor first aligned the plate body 1 (size: length is about 80mm to 150mm, width is about 15mm to 30mm, thickness is about 3mm to 6mm) with the patient's fracture 15, ensuring that the bone screw 4 hole of the plate (hole diameter is usually 3mm to 6mm) is docked with the fracture end. During the placement of the bone plate, the doctor uses the groove cavity 2 (to precisely adjust the fit of the plate to ensure that the fracture 15 is tighter and reduce the gap between the two ends of the fracture.

[0075] Next, the doctor accurately controls the micro-motion amplitude and traction force through the size of the insert 3 and the damping elastic component 13. The micro-motion module can apply appropriate traction force according to the patient's fracture type and recovery status to ensure close contact at the fracture site 15, while avoiding blood flow obstruction due to over-tightening of the screws. Through micro-vibration control, the bone plate provides axial micro-motion of 0.1mm to 1mm, which helps promote the healing of the fracture site 15. After the operation, the sensor 305 built into the bone plate begins to monitor the micro-motion of the fracture end in real time. The sensor transmits data to the doctor's monitoring device through wireless technology. The doctor can check the micro-motion of the fracture site 15 at any time and adjust it according to the patient's recovery progress.

[0076] Based on the real-time feedback data, the doctor found that the patient had less micro-motion at the fracture end on the 5th day after surgery, which may indicate slow fracture recovery. The doctor adjusted the treatment plan based on the data, increased the frequency of physical therapy, and asked the patient to reduce the amount of activity to avoid excessive traction and pressure on the fracture site. On the 14th day after the adjusted treatment, the micro-motion at the fracture site returned to the normal range, showing positive progress in healing. Through real-time monitoring of personalized intelligent micro-motion bone plates, doctors can accurately assess the patient's recovery status and make timely adjustments. In the end, the patient's fracture healing was accelerated during the postoperative recovery process, and the recovery time was shortened by about 20%.

[0077] Example 5

[0078] Application in Scoliosis Corrective Surgery

[0079] In a scoliosis correction surgery, the patient's spine developed severe scoliosis, and the doctor decided to use a personalized intelligent micro-motion bone plate to stabilize the spine. During the operation, the doctor first accurately docked the bone plate body 1 (size: length of about 100mm to 150mm, width of about 10mm to 20mm, thickness of about 3mm to 6mm) with the fracture 15 of the patient's spine to ensure that the bone plate can tightly fix the spine. The groove cavity 2 of the bone plate further optimizes the fixation effect of the bone plate, ensuring that the bone plate fits perfectly with the bone.

[0080] During the operation, the bone plate activates the micro-vibration function, generating tiny vibrations through the insert 3 and the damping elastic component 13 to promote local blood circulation. Micro-vibration therapy can reduce the pressure on the blood supply caused by over-tightening of the screws without affecting the stability of the fracture 15, thereby enhancing the effect of fracture healing. The axial micro-motion amplitude of the micro-vibration is controlled between 0.1mm and 1mm to ensure that the vibration is gentle enough to promote healing while avoiding discomfort to the patient. After the operation, the sensor monitors the micro-motion of the spine in real time, and transmits the data to the doctor in real time through wireless sensing technology to help the doctor understand the recovery progress.

[0081] After two months of recovery, the patient's spinal stability has been significantly improved, and the recovery effect is remarkable. Thanks to the precise control and micro-vibration of the micro-motion plate, the patient's postoperative pain is reduced and the recovery process is smooth. At the same time, the real-time feedback of sensor data enables doctors to adjust the treatment plan in time and avoid postoperative complications. After three months, the patient's spinal stability has been significantly improved, the recovery effect is very ideal, and the risk of surgical complications is significantly reduced.

[0082] Example 6

[0083] Application throughout the entire cycle after fracture repair surgery

[0084] After a long bone fracture repair surgery, the patient suffered a transverse fracture of the tibia. The patient chose to use a personalized smart micro-motion plate to accelerate the healing of the fracture site 15. In the first week after surgery, the doctor obtained real-time micro-motion data of the fracture site 15 through sensors (such as piezoelectric sensors or wireless passive surface conformal strain sensors). The sensor data showed that the micro-motion at the fracture end was slightly lower than expected, indicating that there may be healing problems at the fracture site 15. By analyzing the data, the doctor found that the patient's fracture end may have insufficient micro-motion due to incomplete bone healing, and then decided to adjust the treatment plan.

[0085] The doctor adjusted the patient's treatment method based on data feedback, increased the frequency of local physical therapy, and asked the patient to strengthen early activity restrictions to avoid excessive load. The micro-vibration function of the bone plate continues to operate, promoting local blood circulation through tiny vibrations, alleviating the problem of poor blood flow that may be caused by insufficient micro-motion at the fracture site. The amplitude of the micro-vibration is between 0.1mm and 1mm, ensuring that the micro-motion effect is gentle and helps healing.

[0086] After a period of treatment, the patient's micro-motion gradually returned to the normal range, and the healing of the fracture site 15 was improved. The doctor found through real-time monitoring data that the healing of the fracture site 15 gradually entered the normal track, showing a positive sign of the patient's recovery. Through the dynamic adjustment and precise treatment of the personalized intelligent micro-motion plate, the patient avoided possible complications after surgery and the recovery speed was significantly improved. In the end, the patient effectively shortened the recovery time during the postoperative recovery process, avoided complications after surgery, and the medical effect was significantly improved. These three implementation cases show that the personalized intelligent micro-motion plate provides more customized treatment plans for fracture patients through precise micro-motion control and real-time sensor monitoring, ensuring that every step in the fracture repair process is finely adjusted and monitored. Micro-vibration control within the range of 0.1mm to 1mm can ensure effective promotion of fracture healing while avoiding unnecessary side effects, achieving better recovery effects and faster recovery progress.

[0087] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0088] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0089] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0090] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A micro-motion adjustment device for a bone plate, characterized in that: include: Plate body, A groove cavity is provided on the plate surface of the bone plate body, and the inner side wall of the groove cavity is recessed inward to form an insertion groove. The insert is installed in the groove cavity, the side edge of the insert is embedded in the insertion groove, the side edge of the insert is detachably connected with a damping elastic component, and the damping elastic component abuts against the inner wall surface of the insertion groove, The insert is provided with a mounting hole, and a bone screw is inserted into the mounting hole.

2. The micro-motion adjustment device for a bone plate according to claim 1, characterized in that: A mounting opening is arranged on the side edge of the insert, and the damping elastic component is clamped with the mounting opening.

3. The micro-motion adjustment device for a bone plate according to claim 2, characterized in that: The mounting opening is a blind groove, the damping elastic component includes a spring, one end of the spring is provided with a cover shell, the shell opening edge of the cover shell is buckled with the edge of the blind groove opening, and the other end of the spring is pressed by the cover shell and abuts against the inner wall surface of the groove cavity.

4. The micro-motion adjustment device for a bone plate according to claim 3, characterized in that: The mounting hole is set as a waist hole, and the damping elastic component is close to the end of the waist hole.

5. The micro-motion adjustment device for a bone plate according to claim 4, characterized in that: The opening of the cover shell is turned outward to form a first hook, and the notch of the blind groove is turned inward to form a second hook, and the first hook is buckled with the second hook.

6. The micro-motion adjustment device for a bone plate according to claim 5, characterized in that: The buckling surface of the first buckle hook is an inclined surface, the buckling surface of the second buckle hook is an inclined surface, and the buckling part between the opening of the cover shell and the notch of the blind groove forms an inclined connection.

7. The micro-motion adjustment device for a bone plate according to claim 1, characterized in that: The bone plate body is provided with a sensor detection module, and the sensor detection module monitors the micro-motion at the fracture site in real time.

8. The micro-motion adjustment device for a bone plate according to claim 7, characterized in that: The sensing detection module includes one or more of a piezoelectric sensor, a micro-electromechanical system sensor, an optical fiber sensor, and an in-situ wireless passive curved surface conformal strain sensor.

9. A method for using the micro-motion adjustment device for a bone plate according to any one of claims 1 to 8, characterized in that: The recovery process and micro-motion are judged according to the fracture status, and a suitable damping elastic component is selected, and the damping elastic component is connected to the insert, and then the insert with the damping elastic component is fixed in the groove cavity by bone screws.

Citation Information

Patent Citations

  • A bidirectional micro-motion locking bone plate

    CN111419375B