Titanium alloy lamina with easy assembly

Abstract

The utility model discloses an easy assembly titanium alloy lamina relates to a lamina for lumbar spinal stenosis spinal decompression, and its purpose is to provide a kind of lamina with lamina repair, bone graft bed amplification, dura mater sac protection function's lamina.The easy assembly titanium alloy lamina includes two symmetrical half lamina, and half lamina includes lamina main part, saddle hook and fixing part, the surface of lamina main part is processed with multiple uniform arrangement micropore, and the side of lamina main part is provided with side plate;The end of saddle hook is connected with side plate, and the front end of saddle hook is provided with fixed hole;Fixing part is arranged in fixed hole, and saddle hook can be buckled on the nail stick in the spine nail stick system, and fixing part is used for fixing saddle hook on nail stick.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, specifically to an easy-to-assemble titanium alloy vertebral plate. Background Technology

[0002] After lumbar spinal decompression surgery, due to the absence of a lamina and the lack of posterior spinal structures, the spine relies entirely on anterior support. The anterior intervertebral discs have mobility, which can easily lead to internal fixation failure. For these reasons, a lamina needs to be installed during lumbar spinal decompression surgery.

[0003] During the surgery, the lamina of the affected segment is removed, resulting in a lamina defect. Existing lamina are mostly planar structures, which cannot well conform to the shape of the spine, making it easy to cause difficulties in the installation of the lamina prosthesis and postoperative screw removal, ultimately affecting the surgical outcome. Utility Model Content

[0004] The purpose of this invention is to provide an easily assembled titanium alloy vertebral lamina to solve the problem of vertebral lamina defect repair after lumbar spinal decompression surgery.

[0005] Therefore, embodiments of this utility model propose an easily assembled titanium alloy vertebral plate.

[0006] The easily assembled titanium alloy vertebral plate according to an embodiment of the present invention includes two symmetrically arranged semi-vertebral plates. Each semi-vertebral plate includes a vertebral plate body, a saddle hook, and a fixing member. The surface of the vertebral plate body is machined with a plurality of evenly arranged microholes, and a side plate is provided on one side of the vertebral plate body. The end of the saddle hook is connected to the side plate, and the front end of the saddle hook is provided with a fixing hole. The fixing member is disposed in the fixing hole, and the saddle hook can be snapped onto the rod in the spinal rod system. The fixing member is used to fix the saddle hook onto the rod.

[0007] In some embodiments, the saddle hook is integrally formed with the vertebral plate body.

[0008] In some embodiments, the fixing hole is a threaded hole, and the fixing member is a threaded member.

[0009] In some embodiments, screw holes are provided at both ends of the vertebral lamina body along its length for installing screws.

[0010] In some embodiments, the screw is a cortical bone screw.

[0011] In some embodiments, the vertebral plate body, the saddle hook, and the fixing member are made of titanium alloy.

[0012] In some embodiments, the lamina bodies of the two hemilamina are arranged in a mating arrangement.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Other features and aspects of this disclosure will become clearer from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a top view of a hemilamina according to an embodiment of the present invention.

[0016] Figure 2 This is a front view of a hemilamina according to an embodiment of the present invention.

[0017] Figure label:

[0018] Easy-to-assemble titanium alloy vertebral lamina 100, semi-vertebral lamina 101, vertebral lamina body 10, micropores 11, side plates 12, screw holes 13, saddle hooks 20, fixing holes 21, and fixing parts 30. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to specific implementation schemes. However, those skilled in the art should understand that the implementation schemes described below are only for illustrating this utility model and should not be regarded as limiting the scope of this utility model. Based on the implementation schemes in this utility model, all other implementation schemes obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figures 1-2 As shown, the easily assembled titanium alloy vertebral plate 100 according to an embodiment of the present invention includes two symmetrically arranged semi-vertebral plates 101. Each semi-vertebral plate 101 includes a vertebral plate body 10, a saddle hook 20, and a fixing member 30.

[0021] The surface of the vertebral lamina body 10 is machined with a plurality of evenly arranged microholes 11, and a side plate 12 is provided on one side of the vertebral lamina body 10; the end of the saddle hook 20 is connected to the side plate 12, and the front end of the saddle hook 20 is provided with a fixing hole 21; the fixing member 30 is provided in the fixing hole 21, and the saddle hook 20 can be snapped onto the rod in the spinal rod system. The fixing member 30 is used to fix the saddle hook 20 onto the rod.

[0022] Understandably, the microporous 11 structure is conducive to bone fusion and repair.

[0023] According to the present invention, the easy-to-assemble titanium alloy vertebral lamina 100 is provided with two symmetrically arranged half-lamina 101. When the lamina body 10 in the half-lamina 101 is connected, a certain angle can be formed. This allows it to better fit the morphology of the dorsal bone structure of the spine, making the installation of the lamina prosthesis more convenient, the screw-plate-bone structure to fit better, and the screws less likely to be pulled out after surgery.

[0024] In some embodiments, such as Figures 1-2 As shown, the saddle hook 20 is integrally formed with the vertebral plate body 10.

[0025] In some embodiments, such as Figures 1-2 As shown, fixing hole 21 is a threaded hole, and fixing part 30 is a threaded part.

[0026] In some embodiments, such as Figures 1-2 As shown, screw holes are provided at both ends of the vertebral lamina body 10 along its length for installing screws.

[0027] In some embodiments, such as Figures 1-2 As shown, the screw is a cortical bone screw.

[0028] In some embodiments, such as Figures 1-2 As shown, the vertebral plate body 10, saddle hook 20 and fixing component 30 are made of titanium alloy.

[0029] In some embodiments, such as Figures 1-2 As shown, the two hemilamina 101 are connected to each other.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An easily assembled titanium alloy conical plate, characterized in that, It includes two symmetrically arranged hemilamina, each hemilamina comprising: A vertebral lamina body, wherein multiple uniformly arranged micropores are machined on the surface of the vertebral lamina body, and a side plate is provided on one side of the vertebral lamina body; The saddle hook has its end connected to the side plate and its front end provided with a fixing hole. A fastener is provided in the fixing hole, and the saddle hook can be snapped onto the rod in the spinal rod system. The fastener is used to fix the saddle hook onto the rod.

2. The easily assembled titanium alloy conical plate according to claim 1, characterized in that, The saddle hook is integrally formed with the vertebral plate body.

3. The easily assembled titanium alloy conical plate according to claim 1, characterized in that, The fixing hole is a threaded hole, and the fixing component is a threaded component.

4. The easily assembled titanium alloy conical plate according to claim 1, characterized in that, Screw holes are provided at both ends of the vertebral lamina body along its length for installing screws.

5. The easily assembled titanium alloy conical plate according to claim 4, characterized in that, The screw is a cortical bone screw.

6. The easily assembled titanium alloy conical plate according to claim 1, characterized in that, The vertebral plate body, the saddle hook, and the fixing component are made of titanium alloy.

7. The easily assembled titanium alloy conical plate according to claim 1, characterized in that, The two hemilamina are arranged in a docking configuration.

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