Rib bone fracture plate, limiting and fixing assembly and lock catch assembling method of limiting and fixing assembly

Abstract

The invention relates to the technical field of medical equipment, in particular to a rib bone fracture plate, a limiting and fixing assembly and a lock catch assembling method of the limiting and fixing assembly, and is suitable for internal fixation after rib fracture or rib bone tumor excision. The rib bone fracture plate is assembled in a combined mode and can be assembled and used according to the requirements of different patients, the left encircling claw and the right encircling claw reinforce fixation, and the adjustable moving claw is installed according to different positions of the affected bone so that the requirement for fixing the ribs of the patients with comminuted fractures can be met. The movable claw is mainly used for fixing broken bone blocks in rib fracture fixation, the lower plane of the cross beam makes contact with the broken bone blocks and provides a fixing face, and the movable claw fixes the broken bone blocks left and right to achieve the mechanical fixing effect of the broken bone blocks.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a rib bone plate and a limiting and fixing assembly and a locking and assembling method thereof, which are suitable for internal fixation after rib fracture or rib tumor resection. BACKGROUND

[0002] Trauma is an important cause of abnormal death of human beings, and chest trauma accounts for about 25% of trauma. Rib fracture is the most common chest wall injury > 50%. Rib fracture usually refers to the discontinuity or destruction of the cortical continuity of the rib. Rib fracture can be divided into: incomplete rib fracture: manifested as bone cortical crack or wrinkle or distortion, often referred to as bone fracture or minor fracture. Complete rib fracture: the cortical bone is completely broken, often accompanied by different degrees of displacement. Comminuted rib fracture: the cortical bone is completely crushed, often accompanied by different degrees of subcutaneous emphysema and lung rupture injury, etc.

[0003] Rib fracture is very common and multiple. In daily life, people often have accidental falls, hard objects rubbing, intense antagonistic sports, collisions, car accidents, falls from a height and heavy object impacts, and even severe cough and many other factors can lead to rib fracture. In addition, patients with malignant tumors and osteoporosis can also have pathological rib fractures. The combined injury and complications of rib fracture are not the same. It may be mild chest pain; it may be more severe chest pain, especially when changing body position such as coughing, sneezing, laughing, turning the body, going to the toilet, etc. The chest pain will be more obvious; it may also appear life-threatening conditions such as pneumothorax, hemothorax, lung rupture, liver and spleen rupture and diaphragm rupture, secondary atelectasis, lung infection, dyspnea and chest infection and other serious complications.

[0004] The skeletal structure of the chest wall consists of 12 pairs of ribs, the sternum, clavicle, scapula, and spine. The 1st to 7th pairs of ribs articulate with the sternum and spine anteriorly and posteriorly, respectively. The 8th to 10th pairs of ribs connect anteriorly to the costal cartilage. The 11th and 12th pairs of ribs at the bottom are free anteriorly and are called "floating ribs." Rib fractures can occur when the chest is subjected to external impact or stress injury (such as sudden rotation or twisting of the body). The intercostal neurovascular bundle runs beneath each rib and includes intercostal veins, arteries, and nerves. Once a rib is fractured and displaced, the intercostal nerves are stimulated by the fractured rib ends with respiratory movements and changes in body position, resulting in varying degrees of pain. If the rib fragments puncture intercostal vessels or cause bleeding from the medullary cavity, hemothorax of varying degrees can occur. The most common symptoms of rib fractures include pain, chest tightness, shortness of breath, and difficulty breathing; local numbness, swelling, bruising, and discoloration; local bulging or depression of the chest wall; in severe cases, paradoxical breathing and subcutaneous emphysema may occur, and patients are often unable to exert themselves; chest pain worsens when breathing deeply, speaking, or coughing, accompanied by a decline in activity and work capacity. At the same time, the inability to cough up phlegm may lead to atelectasis and lung infection, resulting in fever, limited respiratory function, or even respiratory failure, hypoxia, and shock.

[0005] Rib tumors and tumor-like lesions are among the most common chest wall diseases. Treatment involves removing the bone tumor by incising the skin along the rib, with the tumor at the center. For malignant tumors, the subcutaneous tissue or muscle layer is dissected outside the reaction zone, extending 2-5 cm beyond the tumor at both ends to expose the rib. The rib is then cut and removed. Tumor removal can result in rib loss.

[0006] Currently, the relatively accepted internal fixation devices for rib bone tumor resection and chest wall reconstruction include rib plates, locking plates, and meshes, each with its own advantages and disadvantages. Traditional rib plates are simple to use, but their fixation length, designed bending strength, and stability cannot meet clinical needs. Locking plates combined with meshes for chest wall reconstruction after tumor resection are one of the most widely used surgical techniques for this procedure. However, they still present fixation instability issues for unstable ribs or those with osteoporosis, and the locking plates and meshes need to be shaped according to the patient's thoracic structure during surgery, making the procedure challenging.

[0007] The ribs are bones that protect organs such as the lungs, heart, and liver. Their loss or fracture can cause significant harm. The main effects are as follows: 1. Paradoxical breathing: When a large area of ​​ribs is missing, the bony structure of the chest wall is damaged, making it impossible to maintain normal negative pressure within the thoracic cavity. Paradoxical breathing may occur during respiratory movements. The mechanism of this breathing is the same as the paradoxical breathing that occurs when the chest wall floats due to extensive chest trauma. If paradoxical breathing is severe, it may affect respiratory function. 2. Chest deformity: The shape of the chest wall requires bony support. When ribs are missing, this support is compromised, leading to localized depressions or deformities, such as asymmetrical pectus excavatum or high-level localized depressions. Because the left and right chest walls are significantly different, the overall appearance of the chest wall is affected. 3. Scoliosis: When ribs are missing, the support on one side of the spine is weakened, making it prone to scoliosis under the pressure of gravity. Furthermore, once rib loss occurs, the healthy ribs will collapse significantly under the pressure of the weight of the shoulder and upper chest wall on the same side. After one side of the chest wall collapses, the spine will also develop scoliosis due to the traction of the remaining ribs. In response to these situations, internal fixation techniques using rib plates are of great significance in stabilizing the fracture site, restoring chest wall function, and promoting patient recovery. However, existing rib internal fixation products still have many shortcomings in clinical application.

[0008] Titanium alloy bone plates have the following advantages: Titanium alloys possess excellent biocompatibility and corrosion resistance, and their mechanical strength provides good fixation. Disadvantages include: high rigidity, which may lead to stress shielding and hinder natural healing of the fracture site; and the complex processing of titanium alloys, increasing production costs.

[0009] Absorbable bone plates have the following advantages: they are absorbed by the body after surgery, eliminating the need for a second surgery and reducing surgical risks for patients. However, they have relatively weak mechanical properties, making them unsuitable for complex fractures or chest reconstruction.

[0010] Stainless steel bone plates have the following advantages: lower cost and easier processing. Disadvantages include poor biocompatibility and the potential for corrosion or tissue reactions with long-term implantation.

[0011] A common problem with these techniques is the lack of precise adaptation to the anatomical shape of the ribs, especially for the specific needs of thoracic cavity reconstruction after complex fractures or tumor resections. The plates are typically thick, which may affect the natural movement of the thoracic cavity and patient comfort. Summary of the Invention

[0012] This invention aims to provide an internal fixation product suitable for rib fractures or rib tumor resection. The product, through adjustment of the spacing of the circumferential arms and the crossbeam, allows for selection of appropriate crossbeams, different circumferential arms, and moving claws based on the condition of the affected bone during surgery. The product utilizes screw connections and a quick-assembly / disassembly mechanism to meet the requirements for special fixation and precise dimensional matching of the affected bone during surgery. Furthermore, it incorporates a rib bone plate design with a limiting fixation component and its locking assembly method.

[0013] A rib plate includes a crossbeam, a circumferential claw assembly, and a movable claw; The crossbeam is long and narrow, with multiple through slots and grooves on its outer side. These through slots are evenly spaced and U-shaped, with their opening direction at a 90° angle to the length of the crossbeam. The through slots connect to the moving claw. The circumferential gripper assembly consists of a left circumferential gripper, a right circumferential gripper, and a sternal gripper. The two ends of the crossbeam are connected to the left circumferential gripper, the right circumferential gripper, or the sternal gripper, respectively. The left or right circumferential gripper is composed of an end plate and circumferential arms. The end plate has at least two sets of circumferential arms along its length, arranged parallel and spaced apart. The circumferential direction of the circumferential arms is perpendicular to the length of the end plate. The sternal gripper is composed of an end plate, circumferential arms, and a reversing plate. The end plate has at least two sets of circumferential arms along its length, arranged parallel and spaced apart. The circumferential direction of the circumferential arms is perpendicular to the length of the end plate. The side of the end plate connects to the reversing plate, and the length of the end plate and the length of the reversing plate are connected at an angle of 20-90°. The connection between the end plate and the reversing plate is located between the circumferential arms.

[0014] The movable claw is available in three types: symmetrical double-claw arm, asymmetrical double-claw arm, and single-claw arm. The symmetrical double-claw arm type has two sets of claw arms arranged symmetrically in a C-shape along the center of the movable claw. The asymmetrical double-claw arm type has two sets of claw arms of different sizes. The single-claw arm type has one set of claw arms. The side of the movable claw that contacts the through groove is arc-shaped. The claw ends of the movable claw, left circumferential claw, right circumferential claw, and sternal circumferential claw are made of shape memory alloy. This ensures that the claw ends can circumferentially encircle bone tissue at a 30-35° angle.

[0015] It also includes a limiting and fixing component, which is a mushroom-shaped locking pin located at the center of the through groove. The mushroom-shaped locking pin consists of a connecting post and a mushroom head. The mushroom head is fixedly connected to the center of the through groove through the connecting post. The lower part of the mushroom head is provided with an inclined locking edge, which is wedge-shaped. The circumferential claw assembly has a locking hole, which is strip-shaped with the mushroom head. The locking hole and the size of the mushroom head are adapted to each other. The length direction of the mushroom head is connected at an angle to the opening direction of the through groove, with an angle of 10-30°. The mushroom head can pass through the locking hole of the circumferential claw assembly. The moving claw rotates along the connecting post, and the circumferential claw assembly is locked downward into the through groove through the wedge-shaped inclined locking edge.

[0016] It also includes a limiting and fixing component, which is a semi-circular buckle. Semi-circular buckles are respectively provided on both sides of the through groove, and the semi-circular buckles are diagonally distributed along the center of the through groove. The semi-circular buckles fit against the side of the gripping claw component to limit the displacement of the moving claw. The gripping claw component is provided with a locking recess, which is diagonally distributed along the center of the gripping claw component. The semi-circular buckles contact the locking recesses to lock.

[0017] It also includes a limiting and fixing component, which is a nickel-titanium shape memory alloy lock. The nickel-titanium shape memory alloy lock consists of a plug-in block and a slanted support arm. The plug-in block has slanted support arms at its four corners. The slanted support arm 18 is straight in the 0 to 5° state and is retracted into a straight state in the 0 to 5° state. The slanted support arm is bent and unfolded into a curved shape in the 30 to 35° state. The nickel-titanium shape memory alloy lock is X-shaped, and the curved slanted support arm is in close contact with the circumferential claw component. A notch is opened on one side of the channel wall, and the plug-in block is inserted into the notch and fixedly connected to the crossbeam. The nickel-titanium shape memory alloy locking device has two adjacent sets of through slots on both sides, each with a semi-circular buckle. The circumferential claw assembly has a locking hole, and the semi-circular buckle contacts the locking hole for locking. The semi-circular buckle has a semi-circular outer edge that protrudes from the semi-circular buckle and fits against the circumferential claw assembly. The nickel-titanium shape memory alloy locking device and the two sets of circumferential claw assemblies fit together for locking, forming a nickel-titanium shape memory alloy locking unit, which is composed of multiple nickel-titanium shape memory alloy locking units spliced ​​together.

[0018] Grooves are respectively opened on the inner sides of both ends of the crossbeam, the groove direction is 90° with the length direction of the crossbeam, and threaded holes are opened on the grooves; the threaded holes are through holes, and there are two threaded holes on the grooves, which are symmetrically arranged along the length direction; the grooves are engaged with the ring claw assembly and are fixedly connected by fixing screws; a threaded hole is opened at the center of each through groove of the crossbeam; the threaded hole is through hole; the ring claw assembly is threadedly connected to the through groove by fixing screws; the threaded hole is a tapered threaded hole, and the fixing screw is a tapered screw, with the tapered threaded hole and the tapered screw having a taper of 10° to 30°.

[0019] The nickel-titanium shape memory alloy locking device is provided with an arched arm, which is arc-shaped. The inclined support arm is retracted in the 0 to 5° state; the inclined support arm is bent and extended in the 30 to 35° state. The arched height in the bent and extended state is greater than that in the retracted state. The notch on the groove wall is arc-shaped, and the arched arm is in contact with and fits the notch.

[0020] The beneficial effects of this invention are: 1. The rib bone plate assembly can be customized to meet the needs of different patients. Left and right clasping claws enhance fixation, and adjustable movable claws, installed at different locations on the affected bone, allow for rib fixation in patients with comminuted fractures. The movable claws primarily fix bone fragments during rib fracture fixation. The lower plane of the crossbeam contacts the bone fragments and provides a fixation surface. The movable claws fix the bone fragments from both sides to achieve mechanical fixation.

[0021] 2. The upper part of the movable claw is set so that when the product is installed using a tool, the upper part of the movable claw can contact the tool and be fixed by the tool. If the design is to the lower part, the crossbeam will block the tool, and the tool will not be able to meet the fixing requirements.

[0022] 3. The newly designed nickel-titanium shape memory alloy locking device can be fixed by utilizing the superelasticity and memory properties of the shape memory alloy material. It can also continuously apply pressure to the ribs inside the body due to the slight movement caused by breathing, so as to avoid loosening and failure of fixation. It is simple and convenient to operate and install.

[0023] 4. The movable claw is designed with both single and double arms. The physiological and anatomical structure of the ribs is relatively complex. When a fracture occurs, the shape becomes irregular. During clinical fixation, some areas need to avoid intercostal nerves and blood vessels, and the fixation force required in these areas is relatively small. Therefore, the movable claw is designed with a single arm, which can better meet clinical needs than the double-arm design on the market.

[0024] 5. The newly designed T-shaped quick-installation mechanism has a simple structure. During installation, simply press down the hole in the middle of the moving claw with the quick-installation mechanism, and then rotate to fix it. The operation is quick and safe, and it is safer, more convenient and reliable than groove sliding, gear rotation and riveting mechanisms on the market.

[0025] 6. The length of the rib bone plate crossbeam is adapted to meet the different needs of various patients.

[0026] 7. The thickened crossbeam design can meet the mechanical and fixation requirements for rib fracture fixation or fixation after bone tumor resection.

[0027] 8. The design of inconsistent thickness of the left circling claw, right circling claw, and moving claw plate can increase the strength of fixation with the crossbeam, and at the same time, make it easier to deform during the circling process while meeting the strength requirements for fixing the affected bone, thereby reducing the difficulty of fixation and stress rebound after circling.

[0028] 9. The tapered design of the threaded hole can better ensure that the rib plate does not loosen under biomechanical action after fixation, and continuously meets the requirements of connection strength.

[0029] 10. The screws are screwed in from the contact surface with the affected bone, ensuring that the screws can be screwed out in the same direction as the affected bone after product installation, thus avoiding the risk of screws coming loose during the product implantation and installation period. The rib bone plate has a simple design and is easy to operate. Its various parts are designed and assembled to better meet the needs of the market, patients, and different clinical procedures. Attached Figure Description

[0030] Figure 1 Schematic diagram of rib bone plate assembly. Figure I ; Figure 2 Schematic diagram of the crossbeam components Figure I ; Figure 3 Schematic diagram of the double-claw arm type and single-claw arm type structure of the moving claw Figure I ; Figure 4 A schematic diagram of the left and right circumferential gripper structures; Figure 5 Schematic diagram of the fixing screw structure Figure I ; Figure 6 Schematic diagram of rib bone plate assembly. Figure II ; Figure 7 A schematic diagram of the sternal embracing claw structure; Figure 8 Schematic diagram of the double-claw arm type and single-claw arm type structure of the moving claw Figure II ; Figure 9 A schematic diagram showing the assembly of a double-claw arm type and a single-claw arm type mobile claw; Figure 10 Schematic diagram of rib bone plate assembly. Figure III ; Figure 11 Schematic diagram showing the locking holes for the left and right circumferential grippers; Figure 12 Schematic diagram of the crossbeam components Figure II ; Figure 13 A schematic diagram of a nickel-titanium shape memory alloy locking device; Figure 14 Schematic diagram of the fixing screw structure Figure II ; Figure 15 A schematic diagram of a movable claw structure with a locking hole; Figure 16 Schematic diagram of rib bone plate assembly. Figure IV ; Figure 17 A schematic diagram of a beam structure with a mushroom-shaped top; Figure 18 Schematic diagram of a moving claw structure with locking holes Figure I ; Figure 19 Schematic diagram of rib bone plate assembly. Figure V ; Figure 20 Schematic diagram of a moving claw structure with locking holes Figure II ; Figure 21 Schematic diagram of rib bone plate assembly. Figure VI ; Figure 22 for Figure 17 Schematic diagram of the added semi-circular buckle structure; Figure 23 for Figure 20 Schematic diagram of the locking buckle recess structure; Figure 24Schematic diagram of nail-free rib plate structure Figure I ; Figure 25 Schematic diagram of nail-free rib plate structure Figure II ; Figure 26 This is a diagram showing the original state of a nickel-titanium shape memory alloy locking device. Figure 27 Deformation diagram of a nickel-titanium shape memory alloy lock; Figure 28 This is a diagram showing the deformation-fixed state of a nickel-titanium shape memory alloy locking device.

[0031] In the diagram: 1. Crossbeam; 2. Left circumferential claw; 3. Right circumferential claw; 4. Moving claw; 5. Fixing screw; 6. Sternal circumferential claw; 7. End connecting plate; 8. Circumferential arm; 9. Reversing connecting plate; 10. Through groove; 11. Groove; 12. Semi-circular buckle; 13. Semi-circular hole; 14. Mushroom-shaped slot; 15. Inclined locking edge; 16. Nickel-titanium shape memory alloy locking device; 17. Insert block; 18. Inclined support arm; 19. Locking hole; 20. Connecting post; 21. Mushroom head; 22. Locking recess; 23. Outer edge of semi-circular buckle; 24. Arched arm. Detailed Implementation

[0032] A rib bone plate, characterized in that it includes a crossbeam 1, a circumferential claw assembly and a movable claw 4; The crossbeam 1 is elongated, with multiple through slots 10 and grooves 11 formed on its outer side. The through slots 10 are evenly spaced and are U-shaped. The slots 10 are angled at 90° to the length of the crossbeam 1. The through slots 10 are connected to the movable claw 4. The circumferential claw assembly is divided into a left circumferential claw 2, a right circumferential claw 3 and a sternal circumferential claw 6. The two ends of the crossbeam 1 are respectively connected to the left circumferential claw 2, the right circumferential claw 3 or the sternal circumferential claw 6. The left or right circumferential gripper 2 is composed of an end plate 7 and a gripping arm 8. The end plate 7 has at least two sets of gripping arms 8 along its length. The gripping arms 8 are arranged parallel to each other and spaced apart. The gripping direction of the gripping arms 8 is perpendicular to the length direction of the end plate 7. The sternal gripping claw 6 is composed of an end plate 7, a gripping arm 8, and a reversing plate 9. The end plate 7 has at least two sets of gripping arms 8 along its length. The gripping arms 8 are arranged parallel to each other and spaced apart. The gripping direction of the gripping arms 8 is perpendicular to the length direction of the end plate 7. The side of the end plate 7 is connected to the reversing plate 9. The length direction of the end plate 7 and the length direction of the reversing plate 9 are connected at an angle of 20-90°. The connection between the end plate 7 and the reversing plate 9 is located between the gripping arms 8. The equipment can be flexibly combined with the movable claw 4, left circling claw 2, right circling claw 3 or sternal circling claw 6 according to different locations of rib injuries, effectively improving the applicability of the equipment.

[0033] The movable claw 4 is divided into symmetrical double-claw arm type, asymmetrical double-claw arm type, and single-claw arm type; the symmetrical double-claw arm type has two sets of claw arms arranged symmetrically along the center of the movable claw 4 in a C-shape; the asymmetrical double-claw arm type has two sets of claw arms, and the two sets of claw arms are different sizes; the single-claw arm type has one set of claw arms; the side of the movable claw and the through groove are arc-shaped. This invention provides various limiting and fixing structures and locking methods, including a limiting and fixing component, which is a mushroom-shaped locking pin 14 located at the center of the through groove 10. The mushroom-shaped locking pin 14 is divided into a connecting post 20 and a mushroom head 21. The mushroom head 21 is fixedly connected to the center of the through groove 10 through the connecting post 20. The lower part of the mushroom head 21 is provided with an inclined locking edge 15, which is wedge-shaped. A locking hole 19 is opened on the circumferential claw assembly. The locking hole 19 and the mushroom head 21 are strip-shaped and their sizes are matched. The length direction of the mushroom head 21 is connected at an angle to the opening direction of the through groove 10, with an angle of 10-30°. The mushroom head 21 can pass through the locking hole 19 of the circumferential claw assembly. The moving claw 4 rotates along the connecting post 20, and the circumferential claw assembly is locked downward into the through groove 10 through the wedge-shaped inclined locking edge 15.

[0034] It also includes a limiting and fixing component, which is a semi-circular buckle 12. Semi-circular buckles 12 are respectively provided on both sides of the through groove 10, and the semi-circular buckles 12 are distributed diagonally along the center of the through groove 10. The semi-circular buckles 12 fit against the side of the gripping claw assembly to limit the displacement of the moving claw. The gripping claw assembly is provided with a locking recess 22, which is distributed diagonally along the center of the gripping claw assembly. The semi-circular buckles 12 contact the locking recess 22 for locking.

[0035] It also includes a limiting and fixing component, which is a nickel-titanium shape memory alloy locking device 16. The nickel-titanium shape memory alloy locking device 16 is divided into a plug-in block 17 and a diagonal support arm 18. The plug-in block 17 has diagonal support arms 18 at its four corners. The diagonal support arms 18 are straight in the 0 to 5° state and are retracted into a straight shape in the 0 to 5° state. The diagonal support arms 18 are bent and unfolded into a curved shape in the 30 to 35° state. The nickel-titanium shape memory alloy locking device 16 is X-shaped, and the curved diagonal support arms 18 are in close contact with the circumferential claw assembly. A notch is opened on one side of the groove wall of the through groove 10, and the plug-in block 17 is inserted into the notch and fixedly connected to the crossbeam 1. The nickel-titanium shape memory alloy locking device 16 has two adjacent sets of through slots 10 on both sides, each with a semi-circular buckle 12. The circumferential claw assembly has a locking hole 19, and the semi-circular buckle 12 contacts the locking hole 19 to lock. The semi-circular buckle 12 has a semi-circular outer edge 23, which protrudes from the semi-circular buckle 12 and fits against the circumferential claw assembly. The nickel-titanium shape memory alloy locking device 16 and the two sets of circumferential claw assemblies fit together to lock, forming a nickel-titanium shape memory alloy locking unit, which is composed of multiple nickel-titanium shape memory alloy locking units spliced ​​together.

[0036] Grooves are respectively opened on the inner side of both ends of the crossbeam 11. The groove direction of the groove 11 is 90° with the length direction of the crossbeam 1. Threaded holes are opened on the groove 11. The threaded holes are through holes. There are two threaded holes on the groove. The two threaded holes on the groove are symmetrically arranged along the length direction. The groove is engaged with the ring claw assembly and fixedly connected by fixing screws 5. A threaded hole is opened at the center of each through groove 10 of the crossbeam 1. The threaded hole is through hole. The ring claw assembly is threadedly connected to the through groove 10 by fixing screws 5. The threaded hole is a tapered threaded hole. The fixing screw 5 is a tapered screw. The tapered threaded hole and the tapered screw have a taper of 10° to 30°.

[0037] The nickel-titanium shape memory alloy locking device 16 is equipped with an arched arm 24, which is arc-shaped. The inclined support arm 18 is retracted in a 0 to 5° state; the inclined support arm 18 is bent and extended in a 30 to 35° state. The arched height in the bent and extended state is greater than that in the retracted state. The notch on the groove wall of the through groove 10 is arc-shaped, and the arched arm 24 contacts and fits into the notch. The arched arm 24 is extended to achieve a nail-free fixing structure for the equipment, and the nickel-titanium shape memory alloy locking device 16 is bent and extended in a 30 to 35° state to achieve locking and limiting between components.

[0038] A method for assembling a rib bone plate using a locking mechanism includes the following steps: S1. Selection of the circumferential claw assembly: The two ends of the crossbeam 1 are respectively connected to the left circumferential claw 2 and the right circumferential claw 3. When connecting to the sternum, the left circumferential claw 2 or the right circumferential claw 3 is replaced with the sternal circumferential claw 6. The circumferential claw assembly is threadedly connected to the crossbeam 1 by the fixing screw 5. S2. Select the moving claw. The moving claw is threadedly connected to the crossbeam 1 via fixing screw 5. The fixed connection point is adjusted by the arm type and position of the moving claw, wherein the arm type is a double claw arm type, an asymmetrical double claw arm type, and a single claw arm type. S3. Selection of limiting and fixing components: Select one or more combinations of mushroom-shaped locking pins 14, semi-circular buckles 12, and nickel-titanium shape memory alloy locking devices 16 to limit and fix the ring claw assembly to the crossbeam. The limiting and fixing components are threadedly connected to the crossbeam 1 by fixing screws 5.

[0039] A method for assembling a rib bone plate using a locking mechanism includes the following steps: S1. Select the circumferential claw assembly. Connect the left circumferential claw 2 and the right circumferential claw 3 to the two ends of the crossbeam 1 respectively. When connecting to the sternum, replace the left circumferential claw 2 or the right circumferential claw 3 with the sternum circumferential claw 6. S2. Select the moving claw. Adjust the fixed connection point by adjusting the arm type and position of the moving claw. The arm type can be a double claw arm, an asymmetrical double claw arm, or a single claw arm. S3. The limiting and fixing components are selected from mushroom-shaped locking pins 14 and nickel-titanium shape memory alloy locking devices 16. The two ends of the crossbeam 1 are connected to the circumferential claw assembly through the mushroom-shaped locking pins 14; the through groove 10 is connected to the moving claw through the mushroom-shaped locking pins 14; adjacent circumferential claw assemblies are connected by the nickel-titanium shape memory alloy locking devices 16. The inclined support arm 18 is bent and unfolded into a curved strip shape at a state of 30 to 35°. The nickel-titanium shape memory alloy locking device 16 is X-shaped, and the curved inclined support arm 18 is in close contact with the circumferential claw assembly.

[0040] S2 can also be selected to rotate the moving claw 4 after assembly. In the screw-in state, the wedge-shaped inclined locking edge 15 pushes the moving claw 4 downward and locks it into the through groove 10. The two sides of the moving claw 4 are in contact with the side wall of the through groove 10 to achieve side limit. The mushroom head 21 is misaligned with the locking hole 19 for locking. The inclined locking edge 15 presses the moving claw 4 firmly into the through groove 10 to achieve upper and lower limit.

[0041] S3 and the two side walls of the through groove 10 are respectively provided with semi-circular buckles 12; the moving claw 4 is provided with a locking hole 22, and the semi-circular buckle 1 and the locking hole 22 lock to achieve diagonal locking.

[0042] Further explanation is provided below, with reference to specific applications: The rib plate has a long, narrow crossbeam design. Multiple U-shaped grooves are designed on the outer side of the crossbeam along its long axis. These U-shaped grooves are through-grooves along the short axis of the crossbeam. The U-shaped grooves are primarily used to install the moving claws. The width and depth of the U-shaped grooves are machined according to the dimensions of the moving claws. To avoid stress concentration at the connection between the U-shaped grooves and the connecting crossbeam during use, the connection between the U-shaped grooves and the connecting crossbeam is designed as an arc. A threaded hole is designed at the center of the U-shaped groove; this threaded hole is a through hole. Grooves are provided on the inner sides of both ends of the crossbeam along its long axis. These grooves are machined as through-grooves along the short axis of the crossbeam, and are arc-shaped along the long axis of the crossbeam. This is mainly to fit snugly against the backs of the left and right circumferential claws. There are two threaded holes symmetrically arranged along the long axis of the grooves in the short axis direction; these threaded holes are through holes.

[0043] The rib plate has a long, narrow crossbeam design. Along its long axis, the crossbeam has 1-30 U-shaped grooves on its outer side. These grooves are through-slots along the short axis and are primarily used for mounting the moving claws. The width and depth of the U-shaped grooves are machined according to the dimensions of the moving claws. To avoid stress concentration at the connection between the U-shaped grooves and the crossbeam during use, the connection is designed with an arc shape. A threaded hole is located at the center of the U-shaped groove; this hole is a through-hole designed as a tapered screw hole with an angle of 10°–30°. Grooves are located on the inner sides of both ends of the crossbeam along its long axis. These grooves are machined as through-slots along the short axis and are arc-shaped along the long axis to fit snugly against the backs of the left and right circumferential claws. Symmetrically, there are two threaded holes along the long axis of each groove; these are through-holes designed as tapered screw holes with an angle of 10°–30°.

[0044] The rib plate crossbeam features a long, narrow design. Along its long axis, the crossbeam has 1-30 U-shaped grooves on its outer side. These grooves are also through-grooves along the short axis and are primarily used for mounting the moving claws. The width and depth of the U-shaped grooves are machined according to the dimensions of the moving claws. To prevent stress concentration at the connection between the U-shaped grooves and the connecting crossbeam during use, the connection is designed with an arc shape. A threaded hole is located at the center of the U-shaped groove. The threaded hole is designed for the rib plate crossbeam itself. Two semi-circular buckles are designed diagonally across the U-shaped groove. These buckles are used to secure the moving claws, limiting lateral movement, while screws are used for vertical fixation, allowing for multi-directional fixation and positioning.

[0045] The rib-joint plate has a long, narrow crossbeam design. Along its long axis, the crossbeam has 0-30 U-shaped grooves on its outer side. These grooves are also through-grooves along the short axis. The U-shaped grooves are primarily for installing the moving claws. The width and depth of the U-shaped grooves are machined according to the dimensions of the moving claws. To avoid stress concentration at the connection between the U-shaped grooves and the connecting crossbeam during use, the connection is designed with an arc shape. A threaded hole is located at the center of the U-shaped groove. The threaded hole is designed for the rib-joint plate crossbeam. Two semi-circular buckles are designed diagonally in the U-shaped groove. These buckles are used to secure the moving claws during installation, restricting lateral movement. Screws are used for vertical fixation, allowing for multi-directional fixation and limiting. The left and right side fixing grooves are designed for front and rear insertion and removal, and include semi-circular limiting buckles to restrict the lateral movement of the claws. Installation involves inserting the fixing ends of the left and right circumferential claws into the fixing grooves, inserting the limiting buckles, and then securing them with screws.

[0046] The rib plate has a long strip design for the crossbeam. Based on the crossbeams 1 / 2 / 3 / 4 / 5, symmetrical corner protrusions are designed on the U-shaped groove. These protrusions are used for fixing and preventing slippage after the moving claw is installed. The included angle of the protrusions is 30° to 180°, and there are 2 to 8 protrusions perpendicular to the long axis.

[0047] The rib plate has a long, narrow crossbeam design. Multiple U-shaped grooves are designed on the outer side of the crossbeam along its long axis. The U-shaped grooves are through grooves along the short axis of the crossbeam. The U-shaped grooves are mainly used to install the moving claws. The width and depth of the U-shaped grooves are machined according to the size of the moving claws. In order to avoid stress concentration at the connection between the U-shaped grooves and the connecting crossbeam during use, the connection between the U-shaped grooves and the connecting crossbeams is designed to be arc-shaped. A T-shaped quick-installation mechanism is designed and machined at the center of the U-shaped grooves.

[0048] The rib bone plate has a crossbeam with grooves on the inner sides of both ends along the long axis. The grooves are machined into through grooves along the short axis of the crossbeam. The grooves along the long axis of the crossbeam are arc-shaped, mainly to fit the back of the left and right circling claws. There are two threaded holes symmetrically arranged along the long axis of the grooves along the short axis. The threaded holes are through holes.

[0049] The rib plate crossbeam features a T-shaped quick-installation mechanism designed at the center of the U-shaped groove. This mechanism, in conjunction with a moving claw, enables rapid assembly and disassembly. The T-shaped quick-installation mechanism is rectangular when projected from the top, but when viewed perpendicularly to its long axis, it forms a "T" shape. The thickness of the lower edge of the upper "T"-shaped mechanism is designed to increase with a spiral rotation. Its main function is to allow the moving claw to gradually apply pressure and lock the lower edge of the upper "T"-shaped mechanism against the surface of the moving claw during rotation.

[0050] The rib plate crossbeam is a long, narrow design with multiple U-shaped grooves along its long axis on the outer side. These grooves run along the short axis and are primarily used for mounting the moving claw. To prevent stress concentration at the connection between the U-shaped groove and the crossbeam during use, the connection is rounded. One side of the U-shaped groove has a mushroom-shaped locking slot, designed to secure one side of the arm during installation. The upper semi-circular thickness of the "mushroom-shaped" slot is determined by subtracting the plate thickness from the U-shaped groove depth, while the lower cylindrical section is smaller than the upper dimension. Multiple slots are designed along the U-shaped groove to better secure vertical and horizontal movement. The other side of the U-shaped groove is grooved to the shape of a nickel-titanium shape memory alloy locking device, and threaded holes are machined into the crossbeam. The crossbeam has grooves on the inner sides of both ends along its long axis. The grooves are machined into through slots along the short axis of the crossbeam. The grooves along the long axis of the crossbeam are arc-shaped, mainly to fit the back of the left and right circling claws. There are two threaded holes symmetrically arranged along the long axis of the grooves along the short axis. The threaded holes are through holes.

[0051] The right circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0052] The right circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0053] The threaded holes on the right circumferential claw-shaped transverse plate of the rib bone plate are designed as tapered threaded holes with an angle of 10° to 30°.

[0054] The rib plate features a right-hand circling claw design, with the thickness of the circling arm gradually decreasing from the back horizontal plate towards both ends.

[0055] The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0056] The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0057] The threaded holes on the left annular claw-shaped transverse plate of the rib bone plate are designed as tapered threaded holes with an angle of 10° to 30°.

[0058] The rib plate features a left-side circumferential claw design, with the thickness of the circumferential arm gradually decreasing from the back horizontal plate towards both ends.

[0059] The rib plate features a left-side circumferential claw design, consisting of a back cross plate and circumferential arms. The cross plate and circumferential arms are machined as a single unit, with the circumferential arms forming a U-shape. The width of the U-shape is designed to be 8mm to 18mm, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arms along its long axis, with the size of the positioning holes designed to be 0.8mm to 3.0mm. A connecting beam is designed on the side of the cross plate perpendicular to its long axis, for the purpose of fitting the cross beam groove. Symmetrical threaded holes are designed on the connecting beam, parallel to the long axis of the cross plate. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the cross beam.

[0060] The rib plate moving claw works in conjunction with the crossbeam. It has a long strip design, with the middle part being wider than the sides, mainly to enhance the fixing strength between the moving claw and the crossbeam. The distal end of the moving claw has a rounded design to avoid irritating the tissue during installation. The moving claw has a U-shaped design with a U-shaped width of 8mm to 18mm. The overall thickness of the moving claw is uniform. The center of the moving claw is machined with a threaded hole, which is fixed to the crossbeam with screws.

[0061] The rib plate moving claw works in conjunction with the crossbeam. It has a long strip design, with the middle part being wider than the sides, mainly to enhance the fixing strength between the moving claw and the crossbeam. The distal end of the moving claw has a rounded design to avoid irritating the tissue during installation. The moving claw has a U-shaped design with a U-shaped width of 8mm to 18mm. The overall thickness of the moving claw is uniform. The center of the moving claw is designed with a threaded hole, which is fixed to the crossbeam with screws. There are semi-circular fixing grooves in the middle that match the crossbeam.

[0062] The rib plate features a movable claw design, used in conjunction with the crossbeam. It has a long, narrow design with the middle section being wider than the sides, primarily to enhance the fixation strength between the movable claw and the crossbeam. The plate thickness is greater at the wider section than on the sides, gradually decreasing from the center along the claw tip. The distal end of the movable claw has a rounded design to avoid irritating tissues during installation. The movable claw also features a U-shaped design with a width of 8mm to 18mm.

[0063] The rib plate features a movable claw design that works in conjunction with the crossbeam. It has a long, narrow design with the middle section and both sides having the same width. The distal end of the movable claw has a rounded design to avoid irritating the tissue during installation. The movable claw has a U-shaped design with a width of 8mm to 18mm, and the overall thickness of the movable claw plate is consistent.

[0064] The rib plate features a movable claw design that works in conjunction with the crossbeam. It has a long, narrow design with the width of the middle section being the same as the two sides. The plate thickness gradually decreases from the center along the claw tip. The distal end of the movable claw has a rounded design to avoid irritating the tissue during installation. The movable claw has a U-shaped design with a width of 8mm to 18mm.

[0065] The rib plate features a movable claw design with symmetrical double arms that work in conjunction with the crossbeam. The elongated design is wider in the middle than the circumferential arms, and the distal end of the movable claw has a rounded design to avoid tissue irritation during installation. The movable claw has a U-shaped design with a width of 8mm to 18mm. A rectangular groove in the middle section corresponds to the T-shaped quick-installation mechanism.

[0066] The rib plate features a moving claw design and a single-sided encircling arm design for use with the crossbeam.

[0067] The rib plate features a moving claw design and an asymmetrical double-arm embracing design that works in conjunction with the crossbeam.

[0068] The rib plate features a movable claw design with symmetrical double arms that work in conjunction with the crossbeam. The elongated design is wider in the middle than the circumferential arms, and the distal end of the movable claw has a rounded design to avoid tissue irritation during installation. The U-shaped design of the movable claw has a width of 8mm to 18mm. Two circular grooves are designed on one side of the middle section perpendicular to the long axis to mate with the crossbeam's locking slots. The upper half of the other end face is designed with a bevel to engage with a nickel-titanium shape memory alloy locking device for locking and fixation. The lower half has a bevel opposite to the upper half for easier installation.

[0069] The rib plate features a moving claw design and a single-sided encircling arm design for use with the crossbeam.

[0070] The rib plate features a moving claw design and an asymmetrical double-arm embracing design that works in conjunction with the crossbeam.

[0071] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0072] The rib plate fixation screw is designed as a headless, fully tapered screw with a tapered angle of 10° to 30°. Its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0073] The rib bone plate locking device is made of nickel-titanium shape memory alloy and has an "X" shaped design. The middle part has a conical or cylindrical screw hole that matches the crossbeam for fixing screws. The protruding parts on the left and right sides of the "X" shaped structure are in the U-shaped groove of the crossbeam. The left and right sides of the "X" shaped structure are designed to be oblique, with the upper part being wider and the lower part being narrower, which matches the moving claw for fixing. The wedge-shaped fixing prevents it from falling out and loosening.

[0074] The rib plate features a nickel-titanium shape memory alloy locking mechanism, which exhibits super elasticity at room temperature. Installation involves inserting the movable claw into the X-shaped structure. It also possesses memory properties at body temperature, maintaining its installation position under continuous pressure to prevent loosening caused by rib movement during human activity and breathing.

[0075] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0076] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0077] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0078] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0079] Example 1 A rib bone plate that can be adjusted and fixed according to the size and location of the fractured bone ends includes: a crossbeam 11, a left circumferential claw 12, a right circumferential claw 13, a movable claw 14, a fixing screw 15, and a nickel-titanium shape memory alloy locking device 16. The rib bone plate is used in combination with the crossbeam, the left circumferential claw, the right circumferential claw, the movable claw, and the fixing screw. It can be used in combination with the crossbeam, the movable claw, and the fixing screw, or in combination with the left circumferential claw and the right circumferential claw. The movable claw has a symmetrical double-arm, asymmetrical double-arm, or single-arm structure.

[0080] Among the above components, the rib plate crossbeam 9 has a long strip design. Multiple U-shaped grooves are designed on the outer side of the crossbeam along its long axis. The U-shaped grooves are through grooves along the short axis of the crossbeam. The U-shaped grooves are mainly used to install the moving claw. In order to avoid stress concentration at the connection between the U-shaped groove and the connecting crossbeam during use, the connection between the U-shaped groove and the connecting crossbeam is designed to be arc-shaped. A mushroom-shaped locking groove is designed on one side of the U-shaped groove. Its main purpose is to fix one side of the arm at the locking groove during installation. The upper semi-circular thickness of the "mushroom-shaped" locking groove is designed according to the depth of the U-shaped groove of the crossbeam minus the plate thickness. The lower cylindrical part is smaller than the upper dimension. Multiple locking grooves are designed along the through groove direction of the U-shaped groove to better realize the fixation of vertical and horizontal movement. The other side of the U-shaped groove is grooved according to the shape of the nickel-titanium shape memory alloy locking device, and threaded holes are machined on the crossbeam. The crossbeam has grooves on the inner sides of both ends along its long axis. The grooves are machined into through slots along the short axis of the crossbeam. The grooves along the long axis of the crossbeam are arc-shaped, mainly to fit the back of the left and right circling claws. There are two threaded holes symmetrically arranged along the long axis of the grooves along the short axis. The threaded holes are through holes.

[0081] The rib plate features a movable claw design with symmetrical double arms that work in conjunction with the crossbeam. The elongated design is wider in the middle than the circumferential arms, and the distal end of the movable claw has a rounded design to avoid tissue irritation during installation. The U-shaped design of the movable claw has a width of 8mm to 18mm. Two circular grooves are designed on one side of the middle section perpendicular to the long axis to mate with the crossbeam's locking slots. The upper half of the other end face is designed with a bevel to engage with a nickel-titanium shape memory alloy locking device for locking and fixation. The lower half has a bevel opposite to the upper half for easier installation.

[0082] The rib plate features a moving claw design and a single-sided encircling arm design for use with the crossbeam.

[0083] The rib plate features a moving claw design and an asymmetrical double-arm embracing design that works in conjunction with the crossbeam.

[0084] The right circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0085] The right circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0086] The threaded hole 2 on the right ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0087] The right circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0088] The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0089] The left circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0090] The threaded hole 2 on the left ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0091] The left circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0092] The left-side circumferential claw design of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is designed to be 0.8mm to 3.0mm. A connecting beam is designed on the side of the cross plate perpendicular to its long axis. The purpose is to fit the groove of the beam. Symmetrical threaded holes are designed on the connecting beam parallel to the long axis of the cross plate. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the beam.

[0093] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0094] The rib plate fixing screw 2 is designed as a headless, all-conical screw with a cone angle of 10° to 30°. Its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0095] The rib bone plate locking device is made of nickel-titanium shape memory alloy and has an "X" shaped design. The middle part has a conical or cylindrical screw hole that matches the crossbeam for fixing screws. The protruding parts on the left and right sides of the "X" shaped structure are in the U-shaped groove of the crossbeam. The left and right sides of the "X" shaped structure are designed to be oblique, with the upper part being wider and the lower part being narrower, which matches the moving claw for fixing. The wedge-shaped fixing prevents it from falling out and loosening.

[0096] The rib plate features a nickel-titanium shape memory alloy locking mechanism, which exhibits super elasticity at room temperature. Installation involves inserting the movable claw into the X-shaped structure. It also possesses memory properties at body temperature, maintaining its installation position under continuous pressure to prevent loosening caused by rib movement during human activity and breathing.

[0097] Before installation, select the appropriate U-shaped width of the circumferential arm and the length of the rib plate based on the clinical data of the fracture patient or the patient undergoing bone tumor resection. After the incision, reduction of the affected bone, or resection of the tumor, reconfirm the compatibility of the rib plate before assembling it. Different moving claws can be selected and adjusted in different positions according to intraoperative requirements. After the rib plate is installed at the affected bone, check that its position is correct, and then use a special tool to clamp the rib plate to ensure it adheres tightly to the bone and surrounds the fracture ends. If multiple rib plates need to be placed, the method is the same. Observe whether the fracture fixation is satisfactory and whether there is any loosening. If necessary, fixation clamps can be used to apply additional pressure.

[0098] Example 2 A rib bone plate that can be adjusted and fixed according to the size and location of the fracture ends is provided. It consists of a crossbeam, a left circumferential claw, a right circumferential claw, a movable claw, and fixing screws.

[0099] In the above components, the crossbeam is designed as a long strip, with 0-30 U-shaped grooves on the outer side along the long axis. The U-shaped grooves are through grooves along the short axis of the crossbeam. The U-shaped grooves are mainly used to install the moving claws. The width and depth of the U-shaped grooves are machined according to the size of the moving claws. In order to avoid stress concentration at the connection between the U-shaped grooves and the connecting crossbeam during use, the connection between the U-shaped grooves and the connecting crossbeams is designed as an arc. A threaded hole is designed at the center of the U-shaped groove. The threaded hole is a through hole. Grooves are set on the inner sides of both ends of the crossbeam along the long axis. The grooves are machined as through grooves along the short axis of the crossbeam. The grooves along the long axis of the crossbeam are arc-shaped. This is mainly to fit the back of the left and right circling claws. There are two threaded holes symmetrically arranged on the grooves along the long axis in the short axis direction.

[0100] The right circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0101] The right circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0102] The threaded hole 2 on the right ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0103] The right circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0104] The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0105] The left circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0106] The threaded hole 2 on the left ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0107] The left circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0108] The left-side circumferential claw design of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is designed to be 0.8mm to 3.0mm. A connecting beam is designed on the side of the cross plate perpendicular to its long axis. The purpose is to fit the groove of the beam. Symmetrical threaded holes are designed on the connecting beam parallel to the long axis of the cross plate. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the beam.

[0109] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0110] The rib plate fixing screw 2 is designed as a headless, all-conical screw with a cone angle of 10° to 30°. Its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0111] The crossbeam is connected to the left and right circumferential claws with threaded screws. The left and right circumferential claws of the rib bone plate are composed of a back crossbeam and circumferential arms. The crossbeam and circumferential arms are machined as a single piece. The circumferential arms are U-shaped with a width of 8mm to 18mm. The circumferential arms are symmetrically designed along the long axis of the crossbeam. There are 1 to 10 pairs of circumferential arms. The crossbeam has positioning holes perpendicular to the circumferential arms along its long axis. The size of the positioning holes is 0.8mm to 3.0mm. One side of the crossbeam has a convex design to accommodate the groove of the crossbeam. Threaded holes are symmetrically designed along the long axis in the short axis direction on the convex crossbeam.

[0112] The rib plate moving claw works in conjunction with the crossbeam. It has a long strip design, with the middle part being wider than the sides, mainly to enhance the fixing strength between the moving claw and the crossbeam. The distal end of the moving claw has a rounded design to avoid irritating the tissue during installation. The moving claw has a U-shaped design with a U-shaped width of 8mm to 18mm. The overall thickness of the moving claw is uniform. The center of the moving claw is machined with a threaded hole, which is fixed to the crossbeam with screws.

[0113] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0114] Before installation, select the appropriate U-shaped width of the circumferential arm and the length of the rib plate based on the clinical data of the fracture patient or the patient undergoing bone tumor resection. After the incision, reduction of the affected bone, or resection of the tumor, reconfirm the compatibility of the rib plate before assembling it. Different moving claws can be selected and adjusted in different positions according to intraoperative requirements. After the rib plate is installed at the affected bone, check that its position is correct, and then use a special tool to clamp the rib plate to ensure it adheres tightly to the bone and surrounds the fracture ends. If multiple rib plates need to be placed, the method is the same. Observe whether the fracture fixation is satisfactory and whether there is any loosening. If necessary, fixation clamps can be used to apply additional pressure.

[0115] Example 3 A rib bone plate that can be adjusted and fixed according to the size and location of the fracture ends is provided. It consists of a crossbeam, a left circumferential claw, a right circumferential claw, and fixing screws.

[0116] In the above components, the crossbeam is designed as a long strip, with 0-30 U-shaped grooves on the outer side along the long axis. The U-shaped grooves are through grooves along the short axis of the crossbeam. The U-shaped grooves are mainly used to install the moving claws. The width and depth of the U-shaped grooves are machined according to the size of the moving claws. In order to avoid stress concentration at the connection between the U-shaped grooves and the connecting crossbeam during use, the connection between the U-shaped grooves and the connecting crossbeams is designed as an arc. A threaded hole is designed at the center of the U-shaped groove. The threaded hole is a through hole. Grooves are set on the inner sides of both ends of the crossbeam along the long axis. The grooves are machined as through grooves along the short axis of the crossbeam. The grooves along the long axis of the crossbeam are arc-shaped. This is mainly to fit the back of the left and right circling claws. There are two threaded holes symmetrically arranged on the grooves along the long axis in the short axis direction.

[0117] The right circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0118] The right circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0119] The threaded hole 2 on the right ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0120] The right circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0121] The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0122] The left circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0123] The threaded hole 2 on the left ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0124] The left circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0125] The left-side circumferential claw design of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is designed to be 0.8mm to 3.0mm. A connecting beam is designed on the side of the cross plate perpendicular to its long axis. The purpose is to fit the groove of the beam. Symmetrical threaded holes are designed on the connecting beam parallel to the long axis of the cross plate. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the beam.

[0126] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0127] The rib plate fixing screw 2 is designed as a headless, all-conical screw with a cone angle of 10° to 30°. Its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0128] The crossbeam is connected to the left and right circumferential claws with threaded screws. The left and right circumferential claws of the rib bone plate are composed of a back crossbeam and circumferential arms. The crossbeam and circumferential arms are machined as a single piece. The circumferential arms are U-shaped with a width of 8mm to 18mm. The circumferential arms are symmetrically designed along the long axis of the crossbeam. There are 1 to 10 pairs of circumferential arms. The crossbeam has positioning holes perpendicular to the circumferential arms along its long axis. The size of the positioning holes is 0.8mm to 3.0mm. One side of the crossbeam has a convex design to accommodate the groove of the crossbeam. Threaded holes are symmetrically designed along the long axis in the short axis direction on the convex crossbeam.

[0129] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0130] Before installation, select the appropriate U-shaped width of the circumferential arm and the length of the rib plate based on the clinical data of the fracture patient or the patient undergoing bone tumor resection. After the incision, reduction of the affected bone, or resection of the tumor, reconfirm the compatibility of the rib plate before assembling it. Different moving claws can be selected and adjusted in different positions according to intraoperative requirements. After the rib plate is installed at the affected bone, check that its position is correct, and then use a special tool to clamp the rib plate to ensure it adheres tightly to the bone and surrounds the fracture ends. If multiple rib plates need to be placed, the method is the same. Observe whether the fracture fixation is satisfactory and whether there is any loosening. If necessary, fixation clamps can be used to apply additional pressure.

[0131] Example 4 A rib bone plate that can be adjusted and fixed according to the size and location of the fracture ends is provided. It consists of a crossbeam, a movable claw, and a fixing screw.

[0132] In the above components, the crossbeam is designed as a long strip, and 0-30 U-shaped grooves are designed on the outer side of the crossbeam along the long axis. The U-shaped grooves are through grooves in the short axis direction of the crossbeam. The U-shaped grooves are mainly used to install the moving claw. The width and depth of the U-shaped grooves are machined according to the size of the moving claw. In order to avoid stress concentration at the connection between the U-shaped groove and the connecting crossbeam during use, the connection between the U-shaped groove and the connecting crossbeam is designed as an arc. A threaded hole is designed at the center of the U-shaped groove. The threaded hole is a through hole.

[0133] The right circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0134] The right circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0135] The threaded hole 2 on the right ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0136] The right circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0137] The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate, and there are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis, with a size of 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. Threaded holes are symmetrically designed along the long axis in the short axis direction of the convex cross plate. The threaded holes are through holes.

[0138] The left circumferential claw 2 of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. The circumferential arm is symmetrically designed along the long axis of the cross plate. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is 0.8mm to 3.0mm. One side of the cross plate has a convex design for use with the crossbeam groove. The convex cross plate has threaded holes symmetrically designed along the long axis in the short axis direction. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the crossbeam.

[0139] The threaded hole 2 on the left ring claw convex transverse plate of the rib bone plate is designed as a tapered threaded hole with a threaded hole angle of 10° to 30°.

[0140] The left circumferential claw design of the rib plate has a circumferential arm thickness that gradually decreases from the back plate towards both ends.

[0141] The left-side circumferential claw design of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes perpendicular to the circumferential arm along its long axis. The size of the positioning holes is designed to be 0.8mm to 3.0mm. A connecting beam is designed on the side of the cross plate perpendicular to its long axis. The purpose is to fit the groove of the beam. Symmetrical threaded holes are designed on the connecting beam parallel to the long axis of the cross plate. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the beam.

[0142] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0143] The rib plate fixing screw 2 is designed as a headless, all-conical screw with a cone angle of 10° to 30°. Its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0144] The rib plate moving claw works in conjunction with the crossbeam. It has a long strip design, with the middle part being wider than the sides, mainly to enhance the fixing strength between the moving claw and the crossbeam. The distal end of the moving claw has a rounded design to avoid irritating the tissue during installation. The moving claw has a U-shaped design with a U-shaped width of 8mm to 18mm. The overall thickness of the moving claw is uniform. The center of the moving claw is machined with a threaded hole, which is fixed to the crossbeam with screws.

[0145] The rib plate fixing screw is designed as a headless, solid cylindrical screw. The screw's rotating part is designed as an internal hexagon, and its length is machined according to the thickness of the crossbeam, moving claw, left circumferential claw, and right circumferential claw plates.

[0146] Before installation, select the appropriate U-shaped width of the circumferential arm and the length of the rib plate based on the clinical data of the fracture patient or the patient undergoing bone tumor resection. After the incision, reduction of the affected bone, or resection of the tumor, reconfirm the compatibility of the rib plate before assembling it. Different moving claws can be selected and adjusted in different positions according to intraoperative requirements. After the rib plate is installed at the affected bone, check that its position is correct, and then use a special tool to clamp the rib plate to ensure it adheres tightly to the bone and surrounds the fracture ends. If multiple rib plates need to be placed, the method is the same. Observe whether the fracture fixation is satisfactory and whether there is any loosening. If necessary, fixation clamps can be used to apply additional pressure.

[0147] Example 5 The implementation method is the same as in Examples 1, 2, 3, and 4, except for the left circumferential claw. The left circumferential claw of the rib plate consists of a back cross plate and a circumferential arm. The cross plate and the circumferential arm are machined as a single piece. The circumferential arm is U-shaped with a width of 8mm to 18mm. There are 1 to 10 pairs of circumferential arms. The cross plate has positioning holes designed perpendicular to the circumferential arm along its long axis. The size of the positioning holes is designed to be 0.8mm to 3.0mm. A connecting beam is designed on the side of the cross plate perpendicular to its long axis. The purpose is to fit the groove of the beam. Symmetrical threaded holes are designed on the connecting beam parallel to the long axis of the cross plate. The threaded holes are through holes. A semi-circular fixing groove is opened at the center position of the convex cross plate that matches the beam.

[0148] The left circumferential claw is mainly installed at the sternum. Its implementation mainly solves the fixation of fractures near the sternum and missing parts after bone tumor resection. This is mainly because the costal cartilage near the sternum has low strength, and the rib plate installed here cannot meet the fixation requirements.

[0149] Before installation, select the appropriate U-shaped width of the circumferential arm and the length of the rib plate based on the clinical data of the fracture patient or the patient undergoing bone tumor resection. After the incision, reduction of the affected bone, or resection of the tumor, reconfirm the compatibility of the rib plate before assembling it. Different moving claws can be selected and adjusted in different positions according to intraoperative requirements. After the rib plate is installed at the affected bone, check that its position is correct, and then use a special tool to clamp the rib plate to ensure it adheres tightly to the bone and surrounds the fracture ends. If multiple rib plates need to be placed, the method is the same. Observe whether the fracture fixation is satisfactory and whether there is any loosening. If necessary, fixation clamps can be used to apply additional pressure.

[0150] Example 6 The application method is the same as in Example 5, the main difference being the presence or absence of a right clasping claw.

[0151] The left circumferential claw is mainly installed at the sternum. Its implementation mainly solves the fixation of fractures near the sternum and missing parts after bone tumor resection. This is mainly because the costal cartilage near the sternum has low strength, and the rib plate installed here cannot meet the fixation requirements.

[0152] Before installation, select the appropriate U-shaped width of the circumferential arm and the length of the rib plate based on the clinical data of the fracture patient or the patient undergoing bone tumor resection. After the incision, reduction of the affected bone, or resection of the tumor, reconfirm the compatibility of the rib plate before assembling it. Different moving claws can be selected and adjusted in different positions according to intraoperative requirements. After the rib plate is installed at the affected bone, check that its position is correct, and then use a special tool to clamp the rib plate to ensure it adheres tightly to the bone and surrounds the fracture ends. If multiple rib plates need to be placed, the method is the same. Observe whether the fracture fixation is satisfactory and whether there is any loosening. If necessary, fixation clamps can be used to apply additional pressure.

[0153] Example 7 The nickel-titanium shape memory alloy locking device 16 has two adjacent sets of through slots 10 on both sides, each with a semi-circular buckle 12. The circumferential claw assembly has a locking hole 19, and the semi-circular buckle 12 contacts the locking hole 19 to lock. The semi-circular buckle 12 has a semi-circular outer edge 23, which protrudes from the semi-circular buckle 12 and fits against the circumferential claw assembly. The nickel-titanium shape memory alloy locking device 16 and the two sets of circumferential claw assemblies fit together to lock, forming a nickel-titanium shape memory alloy locking unit, which is composed of multiple nickel-titanium shape memory alloy locking units spliced ​​together. The limiting and fixing component is a nickel-titanium shape memory alloy lock 16. The nickel-titanium shape memory alloy lock 16 is divided into a plug block 17 and inclined support arms 18. The plug block 17 has inclined support arms 18 at its four corners. The inclined support arms 18 are straight in the 0 to 5° state and are retracted into a straight state in the 0 to 5° state. The inclined support arms 18 are bent and unfolded into a curved state in the 30 to 35° state. The nickel-titanium shape memory alloy lock 16 is X-shaped with curved inclined support arms. 18 is in close contact with the ring claw assembly; a notch is opened on one side of the channel wall of the through groove 10, and the insert block 17 is inserted into the notch and fixedly connected to the crossbeam 1; the nickel-titanium shape memory alloy locking device 16 is provided with an arched arm 24, the arched arm 24 is arc-shaped, the inclined support arm 18 is retracted in the 0 to 5° state; the inclined support arm 18 is bent and extended in the 30 to 35° state, the arched height in the bent and extended state is greater than that in the retracted state, the notch on the channel wall of the through groove 10 is arc-shaped, and the arched arm 24 is in contact with and fits into the notch. The limiting and fixing component adapted to the movable claw is a mushroom-shaped locking pin 14, which is located at the center of the through groove 10. The mushroom-shaped locking pin 14 is divided into a connecting post 20 and a mushroom head 21. The mushroom head 21 is fixedly connected to the center of the through groove 10 through the connecting post 20. The lower part of the mushroom head 21 is provided with an inclined locking edge 15, which is wedge-shaped. The circumferential claw assembly has a locking hole 19, which is strip-shaped with the mushroom head 21. The locking hole 19 and the mushroom head 21 are matched in size. The length direction of the mushroom head 21 is connected at an angle to the opening direction of the through groove 10, with an angle of 10-30°. The mushroom head 21 can pass through the locking hole 19 of the circumferential claw assembly. The movable claw 4 rotates along the connecting post 20, and the circumferential claw assembly is locked downward into the through groove 10 through the wedge-shaped inclined locking edge 15. This nail-free design greatly simplifies the connection process. Simultaneously, the use of a nickel-titanium shape memory alloy locking device 16, a semi-circular buckle 12, and a mushroom-shaped locking pin 14, combined with interlocking latches, achieves multi-point, multi-directional locking, significantly improving connection strength and durability. There's no need to worry about loosening caused by movement and vibration during prolonged use, even with screw-fixed connections.

[0154] Furthermore, in view of the shortcomings and defects of existing technologies, the following explanation is provided regarding how the selection, combination, and splicing of components in this invention achieve multi-point three-dimensional fixation: 1. For simple fractures in isolated locations and with a light patient weight, a single-claw arm-type mobile claw can be used to reduce the overall weight of the device. If the patient is heavier, a double-claw arm-type mobile claw can be used for enhanced fixation.

[0155] 2. If a fracture occurs and there is detachment of bone fragments on one side, a combination of single-claw arm type moving claw and double-claw arm type moving claw can be used. The double-claw arm type moving claw is used for fracture fixation, and the single-claw arm type moving claw is used to approximate and assist in fixing the detached bone fragments.

[0156] 3. If the area of ​​the bone tumor resection is large, the left and right circumferential claws can be used to fix the two ends of the resection site.

[0157] 4. When the bone tumor resection wound is located at the junction of the sternum and ribs, the junction of the sternum and ribs can be fixed by using the sternal clasp. The angle between the length direction of the end plate and the length direction of the reversing plate can be adjusted by 20-90° to meet the needs of different ribs.

[0158] 5. If the fracture is near the sternum or there is a bone tumor that is missing, one of the left and right clasping claws should be replaced with a sternal clasping claw, so that one side is fixed to the sternum and the other side is fixed to the rib.

[0159] In summary, this case involves individual or localized rib fractures. However, severe rib fractures often involve multiple fractures, and existing technologies and equipment cannot meet treatment needs. This invention allows for the fixation of multiple fractures of a single rib by using movable claws at different positions on the through-slot of the crossbeam. It also incorporates a left or right circumferential claw, or a combination of both, to achieve unilateral or bilateral fixation depending on the severity of the fracture. Furthermore, a sternal circumferential claw extends the fixation at the junction of the rib and sternum. This results in a more stable fixation combination, and the limiting fixation components enhance the connection strength of the components. Especially when treating large-area fractures, surgeries are often performed in stages, with each subsequent treatment only proceeding after assessing the stability of the fixation from the previous surgery. This structure allows for the assembly of rib plates based on fracture scans, and the use of limiting fixation components according to the severity of the fracture. Once the components are assembled and fixed, a three-dimensional connection and locking mechanism is achieved. The limiting fixation components provide a more stable and reliable locking function, significantly improving fixation stability.

Claims

1. A rib bone plate, characterized in that... Includes a crossbeam (1), a gripper assembly, and a moving gripper (4); The crossbeam (1) is long and narrow. Multiple through slots (10) and grooves (11) are opened on the outer side of the crossbeam (1). The multiple through slots (10) are evenly spaced. The through slots (10) are U-shaped. The opening direction of the through slots (10) is 90° with the length direction of the crossbeam (1). The through slots (10) are connected to the moving claw (4). The circumferential claw assembly is divided into a left circumferential claw (2), a right circumferential claw (3) and a sternal circumferential claw (6). The two ends of the crossbeam (1) are respectively connected to the left circumferential claw (2), the right circumferential claw (3) or the sternal circumferential claw (6). The left circumferential claw (2) or the right circumferential claw (3) consists of an end plate (7) and circumferential arms (8). The end plate (7) is provided with at least two sets of circumferential arms (8) along its length. The circumferential arms (8) are arranged parallel to each other and spaced apart. The circumferential direction of the circumferential arms (8) is perpendicular to the length direction of the end plate (7). The sternal circumferential claw (6) consists of an end plate (7), circumferential arms (8), and a reversing plate (9). The end plate (7) is arranged along its length. At least two sets of circumferential arms (8) are provided, which are arranged in parallel and at intervals. The circumferential direction of the circumferential arms (8) is perpendicular to the length direction of the end connecting plate (7). The side of the end connecting plate (7) is connected to the reversing connecting plate (9). The length direction of the end connecting plate (7) and the length direction of the reversing connecting plate (9) are connected at an angle of 20-90°. The connection between the end connecting plate (7) and the reversing connecting plate (9) is located between the circumferential arms (8).

2. The rib bone plate according to claim 1, characterized in that... The movable claw (4) is divided into symmetrical double claw arm type, asymmetrical double claw arm type and single claw arm type; the symmetrical double claw arm type has two sets of claw arms arranged symmetrically along the center of the movable claw (4) in a C shape; the asymmetrical double claw arm type has two sets of claw arms, and the two sets of claw arms are different in size; the single claw arm type has one set of claw arms; the side of the movable claw and the through groove are arc-shaped.

3. A rib bone plate according to claim 1 or 2, characterized in that... It also includes a limiting and fixing component, which is a mushroom-shaped locking pin (14). The mushroom-shaped locking pin (14) is located at the center of the through groove (10). The mushroom-shaped locking pin (14) is divided into a connecting post (20) and a mushroom head (21). The mushroom head (21) is fixedly connected to the center of the through groove (10) through the connecting post (20). The lower part of the mushroom head (21) is provided with an inclined locking edge (15), which is wedge-shaped. The circumferential claw assembly has a locking hole (19). The locking hole (19) and the mushroom head (21) are strip-shaped. The locking hole (19) and the mushroom head (21) are matched in size. The length direction of the mushroom head (21) is connected at an angle to the opening direction of the through groove (10). The angle is 10-30°. The mushroom head (21) can pass through the locking hole (19) of the circumferential claw assembly. The moving claw (4) rotates along the connecting column (20). The circumferential claw assembly is locked into the through groove (10) downward through the wedge-shaped inclined locking edge (15).

4. A rib bone plate according to claim 1 or 2, characterized in that... It also includes a limiting and fixing component, which is a semi-circular buckle (12). The two side walls of the through groove (10) are respectively provided with semi-circular buckles (12), and the semi-circular buckles (12) are distributed diagonally along the center of the through groove (10). The semi-circular buckles (12) fit against the side of the circumferential claw assembly to limit the displacement of the moving claw. The circumferential claw assembly is provided with a locking recess (22), and the locking recess (22) is distributed diagonally along the center of the circumferential claw assembly. The semi-circular buckles (12) contact the locking recess (22) for locking.

5. A rib bone plate according to claim 1 or 2, characterized in that... It also includes a limiting and fixing component, which is a nickel-titanium shape memory alloy lock (16). The nickel-titanium shape memory alloy lock (16) is divided into a plug block (17) and a diagonal arm (18). The plug block (17) has diagonal arms (18) at its four corners. The diagonal arm (18) is straight in the 0 to 5° state. The diagonal arm (18) is retracted into a straight shape in the 0 to 5° state. The diagonal arm (18) is bent and unfolded into a curved shape in the 30 to 35° state. The nickel-titanium shape memory alloy lock (16) is X-shaped. The diagonal arm (18) in the curved shape is in close contact with the ring claw component. A notch is opened on one side of the groove wall of the through groove (10). The plug block (17) is inserted into the notch and fixedly connected to the crossbeam (1).

6. A rib bone plate according to claim 5, characterized in that... The nickel-titanium shape memory alloy locking device (16) has two adjacent sets of through slots (10) on both sides respectively provided with semi-circular buckles (12), and the circumferential claw assembly is provided with a buckle hole (19). The semi-circular buckle (12) contacts the buckle hole (19) for locking. The semi-circular buckle (12) is provided with a semi-circular buckle outer edge (23), which protrudes from the semi-circular buckle (12) and fits with the circumferential claw assembly. The nickel-titanium shape memory alloy locking device (16) and the two sets of circumferential claw assemblies fit together for locking, forming a nickel-titanium shape memory alloy locking unit, which is composed of multiple nickel-titanium shape memory alloy locking units spliced ​​together.

7. The rib bone plate according to claim 1, characterized in that... Grooves are respectively opened on the inner side of both ends of the crossbeam. The groove (11) is 90° with the length direction of the crossbeam (1). Threaded holes are opened on the groove (11). The threaded holes are through holes. There are two threaded holes on the groove. The two threaded holes on the groove are symmetrically arranged along the length direction. The groove is engaged with the ring claw assembly and fixedly connected by fixing screws (5). A threaded hole is opened at the center of each through groove (10) of the crossbeam (1). The threaded hole is through hole. The ring claw assembly is threadedly connected to the through groove (10) by fixing screws (5). The threaded hole is a tapered screw hole. The fixing screw (5) is a tapered screw. The tapered screw hole and the tapered screw have a taper of 10° to 30°.

8. A rib bone plate according to claim 5, characterized in that... The nickel-titanium shape memory alloy locking device (16) is provided with an arched arm (24), which is arc-shaped. The inclined support arm (18) is retracted in the 0 to 5° state; the inclined support arm (18) is bent and extended in the 30 to 35° state. The arched height in the bent and extended state is greater than that in the retracted state. The notch on the groove wall of the through groove (10) is arc-shaped, and the arched arm (24) is in contact with and fits the notch.

9. The locking assembly method for a rib bone plate according to claim 1, characterized in that... Includes the following steps: S1. Select the ring claw assembly. The two ends of the crossbeam (1) are connected to the left ring claw (2) and the right ring claw (3) respectively. When connecting to the sternum, the left ring claw (2) or the right ring claw (3) is replaced with the sternal ring claw (6). The ring claw assembly is threaded to the crossbeam (1) by the fixing screw (5). S2. Select the moving claw. The moving claw is threadedly connected to the crossbeam (1) by the fixing screw (5). The fixed connection point is adjusted by the arm type and position of the moving claw, wherein the arm type is double claw arm type, asymmetrical double claw arm type and single claw arm type. S3. Selection of limiting and fixing components: Select one or more combinations of mushroom-shaped pin (14), semi-circular buckle (12), and nickel-titanium shape memory alloy lock (16) of the limiting and fixing components to limit and fix the ring claw component and the crossbeam. The limiting and fixing components are threadedly connected to the crossbeam (1) by fixing screws (5).

10. The locking assembly method for a rib bone plate according to claim 8, characterized in that... Includes the following steps: S1. Select the circumferential claw assembly. Connect the left circumferential claw (2) and the right circumferential claw (3) to the two ends of the crossbeam (1) respectively. When connecting to the sternum, replace the left circumferential claw (2) or the right circumferential claw (3) with the sternal circumferential claw (6). S2. Select the moving claw. Adjust the fixed connection point by adjusting the arm type and position of the moving claw. The arm type can be a double claw arm, an asymmetrical double claw arm, or a single claw arm. S3. The limiting and fixing components are selected with mushroom-shaped locking pins (14) and nickel-titanium shape memory alloy locking devices (16). The two ends of the crossbeam (1) are connected to the circumferential claw assembly through the mushroom-shaped locking pins (14); the through slot (10) is connected to the moving claw (4) through the mushroom-shaped locking pins (14); adjacent circumferential claw assemblies are connected by nickel-titanium shape memory alloy locking devices (16). The inclined support arm (18) is bent and unfolded into a curved strip shape at a state of 30 to 35°. The nickel-titanium shape memory alloy locking device (16) is X-shaped. The curved inclined support arm (18) is in close contact with the circumferential claw assembly.

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