Lamina components

Abstract

The present invention provides a vertebral plate assembly, comprising: a filling block, a first end of the filling block having a first section, and a second end of the filling block having a second section; a first support portion, the first support portion is connected to a side of the filling block close to the spinal cord in the spinal canal; a second support portion, the second support portion is connected to a side of the filling block away from the spinal cord in the spinal canal; a first connector, the first connector passes through the first section of the filling block and is connected to the vertebral plate; a second connector, the second connector passes through the second support portion and is connected to the side block. The technical solution of the present invention effectively solves the problem of a large surgical wound when the vertebral plate assembly is installed in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of vertebral plate components, and in particular to a vertebral plate component. Background Art

[0002] The human spine includes the spinal canal structure, which can be narrowed due to various reasons, such as developmental spinal stenosis, cervical spondylosis, intervertebral disc herniation, posterior longitudinal ligament osteophytosis, and hypertrophy of the ligamentum flavum. If spinal stenosis occurs, it will cause compression of the spinal cord and cause axial pain, limb pain and numbness, muscle weakness and even paralysis, which seriously affects people's daily life. Laminectomy is a commonly used procedure to expand the spinal canal.

[0003] There are two main methods to expand the spinal canal in the prior art. The first is to open bone grooves on the outer edges of the bilateral vertebral plates of the vertebral body, retain the inner plate of one side of the vertebral plate as the "door axis", cut off the entire layer of the vertebral plate on the other side to form a "door gap", and then lift the vertebral body along the "door axis" to complete the single door opening action. The vertebral body support titanium plate is then placed between the vertebral plate and the lateral mass after the door is opened, and fixing screws are respectively inserted into the vertebral plate and the lateral mass to maintain a permanent "door opening" to achieve expansion of the spinal canal. The other method is to remove the upper part of the vertebral body, that is, the part with the spinous process, and then install an artificial spinous process part to replace the upper part of the vertebral body to achieve expansion of the spinal canal. The above method has the disadvantage of excessively large surgical wounds. Summary of the invention

[0004] The main purpose of the present invention is to provide a vertebral plate assembly to solve the problem of a large surgical wound when the vertebral plate assembly is installed in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a vertebral plate assembly, comprising: a filling block, a first end of the filling block having a first section, and a second end of the filling block having a second section; a first supporting portion, the first supporting portion is connected to a side of the filling block close to the spinal cord in the spinal canal; a second supporting portion, the second supporting portion is connected to a side of the filling block away from the spinal cord in the spinal canal; a first connecting piece, the first connecting piece passes through the first section of the filling block and is connected to the vertebral plate; and a second connecting piece passes through the second supporting portion and is connected to the lateral block.

[0006] Furthermore, the first section is inclined in a direction from the first end of the filling block to the second end of the filling block, and the first section faces the spinal cord in the spinal canal.

[0007] Furthermore, the first supporting portion is connected to a boundary between the first section and a side surface of the filling block.

[0008] Furthermore, the second section is parallel to the first section, and the second section is away from the spinal cord in the spinal canal.

[0009] Furthermore, the first supporting portion is a plate-like structure, and the angle between the plane of the first supporting portion and the axis of the vertebral canal is between 80° and 100°.

[0010] Furthermore, the second supporting portion is connected to a boundary between the second section and a side surface of the filling block.

[0011] Furthermore, the second supporting portion is a plate-shaped structure, and the angle between the plane of the second supporting portion and the side surface of the filling block is between 100° and 120°.

[0012] Furthermore, the first cut surface and / or the second cut surface is a rough surface.

[0013] Furthermore, the side of the filling block facing the spinal cord in the spinal canal is a smooth surface.

[0014] Further, the first connecting member includes at least one self-locking screw, and the second connecting member includes at least one screw.

[0015] By applying the technical solution of the present invention, the first connecting piece passes through the first cut surface of the filling block and is connected to the vertebral plate, the first supporting part supports the vertebral plate, and the second connecting piece passes through the second supporting part and is connected to the side block. The first cut surface is aligned with the vertebral plate, and the second cut surface is aligned with the side block. The above structure is compact and occupies a small volume, so that the surgical wound is small. The technical solution of the present invention effectively solves the problem of large surgical wound when the vertebral plate assembly is installed in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the installation structure of an embodiment of a vertebral plate assembly according to the present invention is shown;

[0018] Figure 2 Shows Figure 1 A schematic top view of the installation of the lamina assembly;

[0019] Figure 3 Shows Figure 1 A schematic diagram of the three-dimensional structure of the lamina component;

[0020] Figure 4 Shows Figure 1 A schematic front view of a lamina assembly;

[0021] Figure 5 Shows Figure 1 A schematic top view of a lamina assembly; and

[0022] Figure 6 Shows Figure 1 A schematic structural diagram of a first connecting piece of a vertebral plate assembly.

[0023] The above drawings include the following reference numerals:

[0024] 10. Filling block; 20. First supporting portion; 30. Second supporting portion; 40. First connecting member. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for clarity, the thickness of the layers and regions is enlarged, and the same reference numerals are used to represent the same devices, so their description will be omitted.

[0029] like Figures 1 to 6As shown, the vertebral plate assembly of this embodiment includes: a filling block 10, a first support portion 20, a second support portion 30, a first connecting member 40 and a second connecting member. The first end of the filling block 10 has a first section, and the second end of the filling block 10 has a second section. The first supporting portion 20 is connected to a side of the filling block 10 close to the spinal cord in the spinal canal. The second supporting portion 30 is connected to a side of the filling block 10 away from the spinal cord in the spinal canal. The first connecting member 40 passes through the first section of the filling block 10 and is connected to the vertebral plate. The second connecting member passes through the second supporting portion and is connected to the lateral mass.

[0030] By applying the technical solution of this embodiment, the first connecting member 40 passes through the first cut surface of the filling block 10 and is connected to the vertebral plate, the first supporting portion 20 supports the vertebral plate, and the second connecting member passes through the second supporting portion 30 and is connected to the side mass. The first cut surface is aligned with the vertebral plate, and the second cut surface is aligned with the side mass. The above structure is compact and occupies a small volume, so that the surgical wound is small. The technical solution of this embodiment effectively solves the problem of large surgical wound when the vertebral plate assembly is installed in the prior art.

[0031] It should be noted that the vertebral plate components of this embodiment are used in pairs symmetrically, so that the support is stable. The vertebral plate components of this embodiment are artificial prostheses, and the vertebral plate components of this embodiment may also include vertebral plates and lateral masses, and both vertebral plates and lateral plates are artificial prostheses.

[0032] like Figures 3 to 5 As shown, in the technical solution of this embodiment, the first section is inclined in the direction from the first end of the filling block 10 to the second end of the filling block 10, and the first section faces the spinal cord in the spinal canal. The above structure makes the contact area between the first section and the vertebral plate larger. Specifically, the inclination angle of the first section is between 25 degrees and 50 degrees, and the inclination angle adopted in this embodiment is 30 degrees.

[0033] like Figure 3 As shown, in the technical solution of this embodiment, the first supporting portion 20 is connected to the boundary between the first section and the side surface of the filling block 10. The above structure makes the structure of the vertebral plate assembly more compact.

[0034] like Figure 3 As shown, in the technical solution of this embodiment, the second section is parallel to the first section, and the second section is away from the spinal cord in the spinal canal. The above structure makes the contact area between the second section and the lateral mass larger, so that the connection between the lamina assembly and the lateral mass is more stable. The first section and the second section are parallel, so that the force of the filling block 10 is more balanced.

[0035] like Figure 3As shown, in the technical solution of this embodiment, the first support part 20 is a plate-like structure, and the angle between the plane of the first support part 20 and the axis of the spinal canal is between 80° and 100°. The plate-like structure makes the contact area between the first support part 20 and the vertebral plate larger, so that the force on the vertebral plate is relatively stable.

[0036] like Figure 3 As shown, in the technical solution of this embodiment, the second supporting portion 30 is connected to the boundary between the second section and the side surface of the filling block 10. The above structure makes the lamina assembly compact.

[0037] like Figure 3 As shown, in the technical solution of this embodiment, the second support part 30 is a plate-like structure, and the angle between the plane of the second support part 30 and the side of the filling block 10 is between 100° and 120°. The plate-like structure makes the contact area between the second support part 30 and the side block larger. The angle between the plane of the second support part 30 and the side of the filling block 10 is between 100° and 120°, which meets the force requirements of the second support part 30, that is, it is ensured that the second support part 30 can withstand a large force.

[0038] like Figures 3 to 6 As shown, in the technical solution of this embodiment, the first section and / or the second section is a rough surface. The structure of the rough surface ensures that it is easier to install on the one hand, and on the other hand, it ensures that bone cells and micro-blood vessels crawl and grow along the micropores of the trabecular structure during the human body's rehabilitation process. The rough surface is supported by metal deposition or 3D printing. The rough surface is a trabecular structure with a pore size between 600 microns and 1000 microns, a porosity between 50% and 80%, and a wire diameter between 300 microns and 700 microns.

[0039] like Figure 3 As shown, in the technical solution of this embodiment, the side of the filling block 10 facing the spinal cord in the spinal canal is a smooth surface. The smooth surface ensures the safety of the spinal cord in the spinal canal.

[0040] like Figures 3 to 6 As shown, in the technical solution of the present embodiment, the first connecting member 40 includes at least one self-locking screw, and the second connecting member includes at least one screw. The above structure ensures the stability of the connection of the vertebral plate assembly. It should be noted that there is one self-locking screw, the second connecting member is an ordinary screw, and there are two ordinary screws, and the three screws form a triangle, which makes the connection of the vertebral plate assembly more stable. In order to make the structure of the vertebral plate assembly compact, the plate-like structure of the second supporting part 30 is thin, and the structure of the self-locking screw is not suitable. The second supporting part 30 is provided with two screw holes, and two ordinary screws pass through the second supporting part 30. The first end of the filling block 10 has a self-locking screw hole, and the self-locking screw is adapted to the self-locking screw hole.

[0041] like Figure 3As shown, in the technical solution of this embodiment, the filling block 10, the first supporting part 20 and the second supporting part 30 are an integrally formed structure. The above structure makes the structure of the vertebral plate assembly stable and compact.

[0042] Each time the lamina assembly is used, it comes in pairs, ie, two are located on the left and right sides respectively.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lamina assembly, characterized in that: include: A filling block (10), wherein a first end of the filling block (10) has a first cut surface, and a second end of the filling block (10) has a second cut surface; A first supporting portion (20), the first supporting portion (20) being connected to a side of the filling block (10) close to the spinal cord in the spinal canal; A second supporting portion (30), the second supporting portion (30) being connected to a side of the filling block (10) away from the spinal cord in the spinal canal; A first connecting piece (40), the first connecting piece (40) passes through a first section of the filling block (10) and is connected to the vertebral plate; a second connecting member, the second connecting member passing through the second supporting portion (30) and connected to the side block; The filling block (10), the first supporting portion (20) and the second supporting portion (30) are an integrally formed structure; The first section is inclined in a direction from the first end of the filling block (10) to the second end of the filling block (10), and the first section faces the spinal cord in the spinal canal.

2. The lamina assembly according to claim 1, characterized in that: The first supporting portion (20) is connected at the boundary between the first section and the side surface of the filling block (10).

3. The lamina assembly according to claim 1, characterized in that: The second section is parallel to the first section, and the second section is away from the spinal cord in the spinal canal.

4. The lamina assembly according to claim 1, characterized in that: The first supporting portion (20) is a plate-shaped structure, and the angle between the plane of the first supporting portion (20) and the axis of the spinal canal is between 80° and 100°.

5. The lamina assembly according to claim 1, characterized in that: The second supporting portion (30) is connected at the boundary between the second section and the side surface of the filling block (10).

6. The lamina assembly according to claim 5, characterized in that: The second supporting portion (30) is a plate-shaped structure, and the angle between the plane of the second supporting portion (30) and the side surface of the filling block (10) is between 100° and 120°.

7. The lamina assembly according to claim 1, characterized in that: The first cut surface and / or the second cut surface is a rough surface.

8. The lamina assembly according to claim 1, characterized in that: The side of the filling block (10) facing the spinal cord in the spinal canal is a smooth surface.

9. The lamina assembly according to claim 1, characterized in that: The first connecting member (40) comprises at least one self-locking screw, and the second connecting member comprises at least one screw.

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