Cervical cervical lateral muscle posterior single door opening plate

Abstract

The utility model discloses a cervical lateral muscle posterior single door opening plate which comprises an upper fixing plate and a lower fixing plate, an inclined door opening supporting plate is connected between the upper fixing plate and the lower fixing plate, and the cervical lateral muscle posterior single door opening plate is characterized in that three groups of first threaded holes are formed in the upper fixing plate, and two groups of second threaded holes are formed in the lower fixing plate; fixing screws are installed in the first threaded holes and the second threaded holes, the three sets of first threaded holes are arranged in a triangular array, and retaining grooves corresponding to the fixing screws are formed in the first threaded holes. The upper fixing plate has the advantages that the three sets of first threaded holes in the triangular array can be matched with fixing screws to effectively fix the upper fixing plate, meanwhile, the retaining grooves in the first threaded holes can prevent the fixing screws from loosening due to vibration, and therefore the stability of the upper fixing plate is improved, and the operation effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of posterior cervical spine single-opening door panel, and in particular to posterior cervical spine lateral muscle single-opening door panel. Background Technology

[0002] Neck problems often trouble patients, commonly manifesting as neck pain or soreness, limited extension of the neck; weakened upper limb muscles, numbness, and reduced hand dexterity, with severe cases unable to hold pens, chopsticks, or pick up small objects; lower limb weakness, trembling and unsteady gait, a feeling of walking on cotton, and a scissor gait; and even difficulty urinating or urinary incontinence. The presence of these symptoms may be caused by cervical spinal stenosis compressing the spinal cord nerves due to certain reasons. Posterior cervical laminoplasty is a commonly used surgical procedure to treat cervical spinal stenosis caused by various reasons.

[0003] In some existing posterior cervical spine fixation procedures using a single-panel fixation method, the upper fixation plate is subjected to significant stress, which can lead to problems such as loosening or slippage of the screws inside the upper fixation plate, affecting the surgical outcome and causing discomfort to the patient. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of some existing posterior cervical spine single-door fixation methods, such as the screws in the upper fixation plate being prone to loosening or slippage due to the large force on the upper fixation plate, which affects the surgical effect and causes discomfort to the patient. The present invention provides a posterior cervical spine lateral muscle single-door fixation method.

[0005] The purpose of this utility model is achieved through the following technical solution: a single-door posterior approach for cervical lateral cervical muscles, comprising an upper fixation plate and a lower fixation plate, with an inclined door support plate connecting the upper and lower fixation plates. The upper fixation plate has three sets of first threaded holes, and the lower fixation plate has two sets of second threaded holes. Fixing screws are installed in both the first and second threaded holes. The three sets of first threaded holes are arranged in a triangular array, and each first threaded hole has a corresponding anti-loosening groove. By setting the three sets of first threaded holes in a triangular array, the upper fixation plate can be effectively fixed with the fixing screws. Simultaneously, the anti-loosening grooves in the first threaded holes prevent the fixing screws from loosening due to vibration, thereby improving the stability of the upper fixation plate and enhancing the surgical outcome.

[0006] A further technical solution is to arrange the two sets of second threaded holes horizontally or vertically.

[0007] A further technical solution is to install an upper support plate on the bottom surface of the door opening support plate near the upper fixed plate. The upper support plate has multiple sets of anti-slip teeth arranged at equal intervals on the side near the upper fixed plate. By setting the anti-slip teeth on the upper support plate, the friction between the upper support plate and the cone plate can be increased, thereby improving the support effect of the upper support plate.

[0008] A further technical solution is to install a lower support plate on the bottom surface of the door opening support plate near the lower fixed plate. The angle between the lower support plate and the lower fixed plate is designed to be an obtuse angle. By setting the angle between the lower support plate and the lower fixed plate to be an obtuse angle, it can effectively adapt to the needs of osteotomy at different angles and improve the applicability of the product.

[0009] A further technical solution is that the upper fixing plate, the door opening support plate, the lower fixing plate, and the fixing screws are all made of titanium alloy. By using titanium alloy for the upper fixing plate, the door opening support plate, the lower fixing plate, and the fixing screws, the advantages of good biocompatibility, high strength, toughness, and fatigue resistance can be achieved.

[0010] A further technical solution is to use a ° wedge-shaped loosening thread for the fixing screw. Using a ° wedge-shaped loosening thread for the fixing screw can effectively improve the loosening effect of the fixing screw.

[0011] This utility model has the following advantages: By setting three sets of first threaded holes arranged in a triangular array, the upper fixation plate can be effectively fixed with fixing screws. At the same time, the anti-loosening groove in the first threaded hole can prevent the fixing screws from loosening due to vibration, thereby improving the stability of the upper fixation plate and improving the surgical effect. By setting anti-slip teeth on the upper support plate, the friction between the upper support plate and the cone plate can be increased, improving the support effect of the upper support plate. By setting the angle between the lower support plate and the lower fixation plate to be obtuse, it can effectively adapt to the needs of osteotomy at different angles, improving the applicability of the product. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a side view of the structure of this utility model;

[0014] In the diagram, 1 is the upper fixing plate; 2 is the door opening support plate; 3 is the lower fixing plate; 4 is the first threaded hole; 5 is the second threaded hole; 6 is the upper support plate; 7 is the lower support plate; 8 is the anti-slip teeth; 9 is the fixing screw; and 10 is the hollow groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figures 1-2As shown, the posterior single-door cervical spine fixation plate includes an upper fixation plate 1 and a lower fixation plate 3, with an inclined door support plate 2 connecting the upper fixation plate 1 and the lower fixation plate 3. The upper fixation plate 1 has three sets of first threaded holes 4, and the lower fixation plate 3 has two sets of second threaded holes 5. Fixing screws 9 are installed in both the first and second threaded holes 4. The three sets of first threaded holes 4 are arranged in a triangular array, and each first threaded hole 4 has a corresponding anti-loosening groove for the fixing screw 9. The three sets of first threaded holes 4 arranged in a triangular array can effectively fix the upper fixation plate 1 with the fixing screw 9. Simultaneously, the anti-loosening groove in the first threaded hole 4 can prevent the fixing screw 9 from loosening due to vibration, thereby improving the stability of the upper fixation plate 1 and enhancing the surgical outcome. The two sets of second threaded holes 5 are arranged horizontally or vertically.

[0022] An upper support plate 6 is installed on the bottom surface of the door opening support plate 2 near the upper fixed plate 1. The upper support plate 6 has multiple sets of anti-slip teeth 8 arranged at equal intervals on one side near the upper fixed plate 1. The anti-slip teeth 8 on the upper support plate 6 can increase the friction between the upper support plate 6 and the cone plate, thereby improving the support effect of the upper support plate 6. A lower support plate 7 is installed on the bottom surface of the door opening support plate 2 near the lower fixed plate 3. The angle between the lower support plate 7 and the lower fixed plate 3 is designed to be obtuse. The obtuse angle between the lower support plate 7 and the lower fixed plate 3 can effectively adapt to the needs of osteotomy at different angles, thereby improving the applicability of the product.

[0023] The upper fixing plate 1, the door opening support plate 2, the lower fixing plate 3, and the fixing screw 9 are all made of titanium alloy. By using titanium alloy for the upper fixing plate 1, the door opening support plate 2, the lower fixing plate 3, and the fixing screw 9, it is possible to improve the loosening effect of the fixing screw 9.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A single-door panel for posterior approach of the cervical lateral muscles, comprising an upper fixation plate (1) and a lower fixation plate (3), wherein an inclined door support plate (2) is connected between the upper fixation plate (1) and the lower fixation plate (3), characterized in that: The upper fixing plate (1) has three sets of first threaded holes (4), and the lower fixing plate (3) has two sets of second threaded holes (5). Fixing screws (9) are installed in both the first threaded holes (4) and the second threaded holes (5). The three sets of first threaded holes (4) are arranged in a triangular array, and the first threaded holes (4) are provided with anti-reverse grooves corresponding to the fixing screws (9).

2. The posterior single-opening door panel for cervical lateral muscle posterior approach according to claim 1, characterized in that: The two sets of second threaded holes (5) are arranged horizontally or vertically.

3. The posterior single-opening door panel for cervical lateral muscle approach according to claim 1, characterized in that: The door opening support plate (2) is equipped with an upper support plate (6) on the bottom surface near the upper fixed plate (1). The upper support plate (6) is provided with multiple sets of anti-slip teeth (8) arranged at equal intervals on one side near the upper fixed plate (1).

4. The posterior single-opening door panel for cervical lateral muscle approach according to claim 1, characterized in that: The door opening support plate (2) has a lower support plate (7) installed on the bottom surface near the lower fixed plate (3), and the angle between the lower support plate (7) and the lower fixed plate (3) is an obtuse angle.

5. The posterior single-opening door panel for cervical lateral muscle posterior approach according to claim 1, characterized in that: The upper fixing plate (1), the door opening support plate (2), the lower fixing plate (3), and the fixing screws (9) are all made of titanium alloy.

6. The posterior single-opening door panel for cervical lateral muscle spondylosis according to claim 1, characterized in that: The fixing screw (9) has a 30° wedge-shaped loosening thread.

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