Transverse connection metal cone plate

Abstract

The utility model discloses a kind of transverse connection type metal cone plate, and it relates to the technical field of medical devices.The transverse connection type metal cone plate includes main body and two connecting pieces, and the middle part of main body is provided with a plurality of through holes in display arrangement, and a polygonal hole is formed between every four through holes, and the two side parts of main body are respectively provided with square holes;Connecting piece includes connecting rod and connecting joint, and the end of connecting rod is provided with boss;When main body is installed on the spine of patient, connecting rod passes through main body from below square hole, boss is abutted on main body, and connecting joint is arranged at the front end of connecting rod, and connecting joint is fixed on the nail stick in spinal rod system.The transverse connection type metal cone plate of the utility model reduces the use of screw, reduces the operation difficulty, and promotes the postoperative recovery of patient.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, specifically to a transverse metal cone plate. Background Technology

[0002] Posterior laminectomy for spinal decompression is the most common surgical procedure for treating spinal diseases such as spinal stenosis, spinal fractures, herniated discs, bone hyperplasia, intraspinal tumors and space-occupying lesions, and severe spinal deformities. Its purpose is to relieve or reduce compression of the dura mater, spinal cord, or nerve roots caused by shortening and reduced volume of the spinal canal and lateral recesses due to these various causes. More than half of all spinal surgeries utilize laminectomy for spinal decompression to varying degrees. Post-laminar decompression surgery, internal fixation using a rod-and-screw system and bone grafting fusion are generally required. Internal fixation provides immediate spinal stability, while bone grafting fusion ensures permanent spinal stability.

[0003] Currently, bone graft beds available for repairing bone defects after laminectomy and spinal decompression in spinal surgery are usually fixed with screws. This means that the bone graft bed is fixed to the patient's spine with screws. However, the use of screws can increase the difficulty of the operation and have an adverse effect on the patient's postoperative recovery. Utility Model Content

[0004] The purpose of this invention is to provide a horizontally connected metal cone plate to solve the problems caused by existing screw fixing methods.

[0005] Therefore, embodiments of this utility model propose a transverse metal cone plate.

[0006] According to an embodiment of the present invention, a transverse metal cone plate includes: a main body and two connectors. The main body has a plurality of through holes arranged in an array on its middle portion, with every four through holes forming a polygonal hole. Square holes are provided on both sides of the main body. The connectors include a connecting rod and a connecting joint. A boss is provided at the end of the connecting rod. When the main body is installed on the patient's spine, the connecting rod passes through the main body from below the square hole, the boss abuts against the main body, and the connecting joint is provided at the front end of the connecting rod and is fixed to the rod in the spinal rod system.

[0007] In some embodiments, the thickness of the boss is between 0.2 and 0.5 mm.

[0008] In some embodiments, the portion of the link located above the body is bendable along the upper surface of the body, and the link is bendable by 90 degrees.

[0009] In some embodiments, the main body has a total of 30 through holes, which are arranged in 6 rows, with 5 through holes in each row.

[0010] In some embodiments, the number of connectors is two or more, and a plurality of square holes are arranged in a row on both sides of the main body, with at least one connector disposed in each square hole.

[0011] In some embodiments, the upper surface of the middle portion of the main body is provided with a composite coating containing hydroxyapatite.

[0012] In some embodiments, the composite coating further includes calcium carbonate powder.

[0013] In some embodiments, the composite coating powder is laser cladding sprayed onto the surface of the titanium alloy substrate of the main body, and the titanium alloy substrate of the main body is subjected to polarization treatment.

[0014] In some embodiments, a bone particle placement layer is provided on the composite coating.

[0015] In some embodiments, the thickness of the body is between 1.0 and 1.5 mm.

[0016] 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

[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 main body of a horizontally connected metal cone plate according to an embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of a connector in a horizontally connected metal cone plate according to an embodiment of the present utility model.

[0020] Figure 3 This is a side view of the connecting joint in a transverse metal cone plate according to an embodiment of the present utility model.

[0021] Figure 4 This is a top view of the connecting joint in a transverse metal cone plate according to an embodiment of the present utility model.

[0022] Figure label:

[0023] A horizontally connected metal cone plate 100, a main body 10, a through hole 11, a polygonal hole 12, a square hole 13, a connector 20, a connecting rod 21, a boss 22, and a connecting joint 23. Detailed Implementation

[0024] 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.

[0025] like Figures 1-4 As shown, the transverse metal cone plate 100 according to an embodiment of the present invention includes: a main body 10 and two connecting members 20.

[0026] The main body 10 has multiple through holes 11 arranged in a row in the middle part, and a polygonal hole 12 is formed between every four through holes 11. Square holes 13 are provided on both sides of the main body 10.

[0027] The connector 20 includes a connecting rod 21 and a connecting joint 23, and the end of the connecting rod 21 is provided with a boss 22.

[0028] When the main body 10 is installed on the patient's spine, the connecting rod 21 passes through the main body 10 from below the square hole 13, the boss 22 abuts against the main body 10, and the connecting joint 23 is provided at the front end of the connecting rod 21 and is fixed to the rod in the spinal rod system.

[0029] It should be noted that, as Figures 2-4 As shown, the connector 23 is divided into three parts: upper, middle and lower. The upper part is cylindrical with a threaded hole in the middle and a hexagonal bolt inside. The hexagonal bolt is used to press and fix the connector 23 onto the connecting rod 21. The middle part has a through hole through which the connecting rod 21 passes. The lower part has an arc-shaped locking part for locking onto the rod in the spinal rod system.

[0030] According to the present invention, the horizontally connected metal cone plate 100 is provided with a connector 20 extending from the bottom of the main body 10. The front end of the connecting rod 21 in the connector 20 is fixed to the rod in the spinal rod system through the connecting joint 23, thereby reducing the use of screws.

[0031] In some embodiments, the thickness margin of the boss 22 is between 0.2 and 0.5 mm.

[0032] Understandably, near the end of the connecting rod 21, the diameter of the boss 22 is larger than the width of the square hole 13, so the boss 22 abuts against the bottom of the square hole 13.

[0033] In some embodiments, the portion of the link 21 located above the body 10 can be bent along the upper surface of the body 10, and the link 21 can be bent by 90 degrees.

[0034] It is understandable that by bending the connecting rod 21 by 90 degrees, the connecting rod 21 can simultaneously tighten the main body 10 on both sides, thereby improving the stability of the main body 10.

[0035] In some embodiments, the main body 10 has a total of 30 through holes 11, which are arranged in 6 rows, with 5 through holes 11 in each row.

[0036] In some embodiments, the number of connectors 20 is two or more, and a plurality of square holes 13 are arranged in a row on both sides of the main body 10, and at least one connector 20 is provided in each square hole 13.

[0037] In some embodiments, the upper surface of the middle portion of the main body 10 is provided with a composite coating containing hydroxyapatite.

[0038] In some embodiments, the composite coating further includes calcium carbonate powder.

[0039] In some embodiments, the composite coating powder is laser cladding sprayed onto the surface of the titanium alloy substrate of the body 10, and the titanium alloy substrate of the body 10 is subjected to polarization treatment.

[0040] Preferably, the laser cladding spraying includes the following steps: first, a layer of titanium powder is laid on the cleaned titanium alloy substrate, and then a mixed powder is laid on the titanium powder, with a total powder thickness of 1 mm; laser cladding spraying is performed on the laid powder using a laser with a power of 600w to 1200w and a scanning speed of 3.8 to 11.2 mm / s, and argon is used as the protective gas.

[0041] Preferably, the polarization treatment includes the following steps: connecting the sprayed titanium alloy substrate to the anode of a constant current DC power supply, and using a titanium sheet as the cathode; placing the titanium alloy substrate and the titanium sheet simultaneously in an alkaline solution, and connecting the constant current DC power supply with a voltage of 80V, and polarizing for 3 minutes.

[0042] Preferably, the alkaline solution is a 1 mol / L NaOH solution.

[0043] In some embodiments, a bone particle placement layer is provided on the composite coating.

[0044] Understandably, bone grafting is performed on the composite coating. The grafted bone can be autologous bone, allogeneic bone, or artificial bone granules. The grafted bone is compacted and compacted, and the spinous processes of the vertebrae above and below the diseased vertebra are slightly trimmed to ensure full contact with the grafted bone and facilitate bone ingrowth. At the same time, various bone growth factors can be added to the grafted bone to accelerate bone healing.

[0045] In some embodiments, the thickness of the body 10 is between 1.0 and 1.5 mm.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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. A transversely connected metal cone plate, characterized in that, include: The main body has multiple through holes arranged in a row on the middle part of the main body, and every four through holes form a polygonal hole. Square holes are provided on both sides of the main body. Two connectors, each connector including a connecting rod and a connecting joint, wherein the end of the connecting rod is provided with a boss; When the body is installed on the patient's spine, the connecting rod passes through the body from below the square hole, the boss abuts against the body, the connecting joint is disposed at the front end of the connecting rod, and the connecting joint is fixed to the rod in the spinal rod system.

2. The transversely connected metal cone plate according to claim 1, characterized in that, The thickness of the boss is between 0.2 and 0.5 mm.

3. The transversely connected metal cone plate according to claim 1, characterized in that, The portion of the connecting rod located above the main body can be bent along the upper surface of the main body, and the connecting rod can be bent at 90 degrees.

4. The transversely connected metal cone plate according to claim 1, characterized in that, The main body has a total of 30 through holes, which are arranged in 6 rows, with 5 through holes in each row.

5. The transversely connected metal cone plate according to claim 1, characterized in that, The number of connectors is two or more, and multiple square holes are arranged in a row on both sides of the main body, with at least one connector disposed in each square hole.

6. The transversely connected metal cone plate according to claim 1, characterized in that, The upper surface of the middle part of the main body is provided with a composite coating containing hydroxyapatite.

7. The transversely connected metal cone plate according to claim 6, characterized in that, The composite coating powder is laser cladding sprayed onto the surface of the titanium alloy substrate of the main body, and the titanium alloy substrate of the main body is subjected to polarization treatment.

8. The transversely connected metal cone plate according to claim 7, characterized in that, A bone particle placement layer is provided on the composite coating.

9. The transversely connected metal cone plate according to claim 1, characterized in that, The thickness of the main body is between 1.0 and 1.5 mm.

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