Supporting connection structure for laminectomy

Abstract

The utility model provides a kind of support connecting structure for lamina incision, including first fixed part, connecting plate and second fixed part, first fixed part includes mutually matched upper clamping plate and lower clamping plate, second fixed part is hinged with connecting plate, and upper clamping plate and second fixed part are at least interval and provided with two screw holes. Upper clamping plate and lower clamping plate on first fixed part mutually cooperate, can be more stably fixed in the corresponding position of lamina, and upper clamping plate and second fixed part are at least interval and provided with two screw holes, can be used screw firmly with lamina, simultaneously, the design that second fixed part is hinged with connecting plate makes the structure can be flexibly adjusted open door angle, avoids the tedious operation of manual bending adjustment like traditional titanium plate, greatly shorten operation time, also prevent the damage to structure due to repeatedly bending, ensure that structure stress is uniform, effectively reduce the generation of stress concentration phenomenon, and can greatly shorten operation time.

Description

Technical Field

[0001] This utility model relates to the field of laminectomy support technology, and in particular to a support connection structure for laminectomy. Background Technology

[0002] Cervical spondylosis is a spinal cord disease caused by degenerative changes in the anatomical structure of the cervical spine. It is typically accompanied by pathological changes such as narrowing of the intervertebral discs, osteophyte formation, hypertrophy of the ligamentum flavum, and loss of physiological curvature, leading to spinal cord compression or vertebral instability. In recent years, its incidence has been rising continuously and showing a trend towards affecting younger people, seriously impacting their quality of life. Patients with significant clinical symptoms or neurological deficits usually require surgical intervention. The main surgical approaches are anterior, posterior, and combined anterior-posterior approaches.

[0003] Currently, the most commonly used posterior approach in clinical practice is single-door laminoplasty, which involves flipping and fixing the lamina from the more symptomatic side towards the less symptomatic side to relieve decompression. Existing micro-titanium plates are commonly used to form a complete lamina structure with the cut lamina. However, these plates do not consider the opening angle, often requiring manual bending and adjustment using tools like bending forceps. This not only prolongs the operation time but also risks damaging the plate's structure during repeated bending and adjustment, leading to changes in stress or stress concentration. Utility Model Content

[0004] The purpose of this invention is to provide a support connection structure for laminectomy. This design allows for the selection of an appropriate opening angle based on the intraoperative situation, shortening the operation time and effectively avoiding stress changes or stress concentration caused by repeated adjustments to the opening angle.

[0005] The hinge structure design allows for adjustment of the opening angle according to the intraoperative situation, effectively avoiding stress changes caused by repeated adjustments and shortening the operation time.

[0006] This utility model provides a support connection structure for laminectomy, including a first fixing part, a connecting plate and a second fixing part. The first fixing part includes an upper clamping plate and a lower clamping plate that cooperate with each other. The upper clamping plate and the lower clamping plate are both fixedly connected to the connecting plate. The second fixing part is hinged to the connecting plate. The upper clamping plate and the second fixing part are each provided with at least two screw holes spaced apart.

[0007] Furthermore, the upper clamping plate and the connecting plate are integrally formed, and the lower clamping plate is welded to the connecting plate.

[0008] Furthermore, the length of the upper clamping plate is greater than the length of the lower clamping plate.

[0009] Furthermore, the second fixing part includes a hinge plate, the hinge plate having screw holes spaced apart, the end of the hinge plate having a first hinge ring, the connecting plate having a second hinge ring that mates with the first hinge ring, and the first hinge ring and the second hinge ring being connected by a hinge shaft.

[0010] Furthermore, the sum of the lengths of the first hinge ring and the second hinge ring is the same as the width of the connecting plate.

[0011] Furthermore, the hinge plate is provided with three screw holes, which are arranged in a triangular pattern.

[0012] Furthermore, the upper clamping plate, the lower clamping plate, and the second fixing part are all provided with anti-slip textures.

[0013] Furthermore, the upper clamping plate and the connecting plate are integrally formed, and the lower clamping plate is adjustablely mounted on the connecting plate.

[0014] Furthermore, the connecting plate has two staggered waist-shaped holes, and the lower clamp plate has two connecting ears at one end near the connecting plate. The connecting ears have threaded holes, and the connecting ears are connected to the connecting plate by screws.

[0015] Furthermore, the connecting plate has an abutment portion at one end located at the second fixing portion.

[0016] The support connection structure designed in this technical solution uses an upper and lower clamping plate of the first fixing part to cooperate with each other, which can more stably fix it to the corresponding position of the vertebral lamina. Both the upper clamping plate and the second fixing part have at least two screw holes spaced apart, allowing for a secure connection to the vertebral lamina with screws, ensuring connection stability. Simultaneously, the hinged design of the second fixing part and the connecting plate allows for flexible adjustment of the opening angle, avoiding the cumbersome manual bending and adjustment required with traditional titanium plates. This significantly shortens surgical time, prevents damage to the structure from repeated bending, ensures uniform stress distribution, effectively reduces stress concentration, and greatly shortens surgical time. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model.

[0020] Figure 3 This is another overall structural schematic diagram of Embodiment 3 of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1-Upper clamping plate, 2-Lower clamping plate, 201-Connecting ear, 3-Connecting plate, 301-Oval hole, 4-Hinge plate, 5-First hinge ring, 6-Screw hole, 7-Abutting part. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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.

[0024] 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 one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; 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.

[0025] Example 1

[0026] like Figure 1As shown, this utility model provides a support connection structure for a laminectomy, including a first fixing part, a connecting plate 3, and a second fixing part. The first fixing part includes an upper clamping plate 1 and a lower clamping plate 2 that cooperate with each other. The length of the upper clamping plate 1 is greater than the length of the lower clamping plate 2. The upper clamping plate 1 and the lower clamping plate 2 form a U-shaped structure, which cooperate to hold one end of the laminectomy. The upper clamping plate 1 and the connecting plate 3 are integrally formed, and the lower clamping plate 2 is welded to the connecting plate 3. In order to enable the structure to adapt to different angle connections, in this embodiment, the second fixing part and the connecting plate 3 are set as a hinged connection.

[0027] The upper clamping plate 1 and the second fixing part are each provided with at least two screw holes 6 spaced apart. The second fixing part includes a hinge plate 4, on which three screw holes 6 are spaced apart and arranged in a triangle to enhance the stability during connection. The end of the hinge plate 4 is provided with a first hinge ring 5, and the connecting plate 3 is provided with a second hinge ring that cooperates with the first hinge ring 5. The first hinge ring 5 and the second hinge ring are connected by a hinge shaft, and the sum of the lengths of the first hinge ring 5 and the second hinge ring is the same as the width of the connecting plate 3.

[0028] The connecting plate 3 has an abutment 7 at one end of the second fixing part, which is used to cooperate with the hinge plate 4. When the hinge plate 4 is fixed to the vertebral incision with screws, the abutment 7 abuts against the cross-section of the vertebral incision.

[0029] The first fixing part, the connecting plate 3, and the second fixing part are all made of titanium alloy.

[0030] Example 2

[0031] The technical features that distinguish this embodiment from Embodiment 1 are as follows: the upper clamping plate 1, the lower clamping plate 2, and the second fixing part are all provided with anti-slip textures. The anti-slip textures are used to increase the friction with the surface of the vertebral plate and prevent the titanium plate structure from sliding on the vertebral plate.

[0032] Example 3

[0033] like Figures 2-3 As shown, the difference between this embodiment and Embodiment 1 is that, since the thickness of the vertebral laminae varies among different individuals, in order to adapt the support connection structure to different users, the lower clamping plate 2 is adjustablely mounted on the connecting plate 3 in this embodiment. Specifically, the connecting plate 3 has two staggered waist-shaped holes 301, i.e., the two waist-shaped holes 301 are centrally symmetrically arranged. The lower clamping plate 2 has two connecting ears 201 near the end of the connecting plate 3, each with a threaded hole. The connecting ears 201 are connected to the connecting plate 3 at the waist-shaped holes 301 by screws. By setting the waist-shaped holes 301, the lower clamping plate 2 can be adjusted along the length of the connecting plate 3, thereby adjusting the distance between the upper clamping plate 1 and the lower clamping plate 2. The staggered arrangement of the connecting ears 201 ensures the stability of the lower clamping plate 2.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A support connection structure for laminectomy, characterized in that, It includes a first fixing part, a connecting plate, and a second fixing part. The first fixing part includes an upper clamping plate and a lower clamping plate that cooperate with each other. The second fixing part is hinged to the connecting plate. Both the upper clamping plate and the second fixing part are provided with at least two screw holes spaced apart.

2. The support connection structure for laminectomy according to claim 1, characterized in that, The upper clamping plate and the connecting plate are integrally formed, and the lower clamping plate is welded to the connecting plate.

3. The support connection structure for laminectomy according to claim 1, wherein the length of the upper clamp is greater than the length of the lower clamp.

4. The support connection structure for laminectomy according to claim 1, wherein the second fixing part includes a hinge plate, the hinge plate is provided with screw holes spaced apart, the end of the hinge plate is provided with a first hinge ring, the connecting plate is provided with a second hinge ring that cooperates with the first hinge ring, and the first hinge ring and the second hinge ring are connected by a hinge shaft.

5. The support connection structure for laminectomy according to claim 4, wherein the sum of the lengths of the first hinge ring and the second hinge ring is the same as the width of the connecting plate.

6. The support connection structure for laminectomy according to claim 4, wherein the hinge plate is provided with three screw holes arranged in a triangular pattern.

7. The support connection structure for laminectomy according to claim 1, wherein the upper clamp, the lower clamp, and the second fixing part are all provided with anti-slip texture.

8. The support connection structure for laminectomy according to claim 1, wherein the upper clamping plate and the connecting plate are integrally formed, and the lower clamping plate is adjustablely mounted on the connecting plate.

9. The support connection structure for laminectomy according to claim 8, wherein two oblong holes are alternately formed on the connecting plate, and two connecting ears are provided on one end of the lower clamping plate near the connecting plate, the connecting ears being provided with threaded holes, and the connecting ears being connected to the connecting plate by screws.

10. The support connection structure for laminectomy according to claim 1, wherein the connecting plate has an abutment portion at one end located at the second fixing portion.

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