Adjustable vertebral plate rongeur

Abstract

The utility model provides an adjustable vertebral plate rongeur, and belongs to the technical field of vertebral plate rongeur. The adjustable vertebral plate rongeur comprises the connecting assembly and the adjusting assembly, due to the fact that the connecting rod is in threaded connection with the pushing rod, the connecting rod and the pushing rod can be conveniently separated through threaded connection, the first pushing plate can be conveniently detached through the sectional structure, and when the first pushing plate is damaged, only the connecting rod and the pushing rod need to be separated; the connecting ring is rotationally clamped to the fixing ring through the elastic clamping block, the connecting ring is conveniently rotated by adopting a clamping connection mode, a second push plate can be driven to rotate by rotating a rotating disc, an operator can conveniently adjust the angle between the first push plate and the second push plate, a large amount of time of the operator is saved, and the operation efficiency is improved. And therefore, the first push plate and the second push plate can be freely adjusted to be bitten and removed from different angles, the applicability is high, meanwhile, the first push plate can be conveniently replaced and installed, and the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of laminar bone-biting forceps, and more specifically, to an adjustable laminar bone-biting forceps. Background Technology

[0002] In orthopedic medical devices, laminectomy forceps are mainly used to bite off or trim vertebral lamina and skull bones. A typical laminectomy forceps consists of a handle, a head, a spring plate, and a gill screw. They come in single-joint, double-joint, and skull-type designs. Single-joint forceps heads can be straight or angled (anterior) curved, while double-joint forceps heads can be straight, angled (anterior) curved, or spinous. The head is generally made of stainless steel. For example, an adjustable lamina bone-biting forceps with Chinese patent application number CN202222450941.8 includes a forceps body. The left end face of the forceps body has a rectangular storage cavity. A telescopic mounting post is slidably installed in the storage cavity. A locking element is provided between the telescopic mounting post and the forceps body to limit the position of the storage cavity. A rotating ring is rotatably installed at the left end of the telescopic mounting post. A locking screw is screwed on the surface of the rotating ring to limit its rotation. A push sliding hole is provided in the middle of one side of the telescopic mounting post. A push rod is fitted in the push sliding hole. This utility model is designed to meet existing needs. It uses a hydraulic mechanism to achieve push, which saves effort. It also uses a throttle valve to prevent oil backflow, thereby maintaining the clamping force and effectively reducing the operating intensity. The telescopic length of the bone-biting forceps can also be adjusted as needed for easy storage and use.

[0003] However, the above solution still has certain drawbacks: First, it is inconvenient to rotate the guide side plate and the fixed push plate, and it is not easy to freely adjust the vertebral plate to bite off from different angles, resulting in low applicability. Second, the push rod and the movable push plate are an integral structure. If the movable push plate is damaged, it needs to be replaced together with the push rod. On the one hand, the replacement is cumbersome, and on the other hand, it is easy to waste resources, thus reducing practicality. Utility Model Content

[0004] To overcome the above shortcomings, this application provides an adjustable lamina biting forceps, which aims to improve the related technology by addressing the inconvenience of rotating the guide plate and fixed push plate, the difficulty in freely adjusting the lamina for biting from different angles, and the low applicability. Furthermore, the push rod and movable push plate are an integral structure, and if the movable push plate is damaged, the push rod must be replaced together, which is cumbersome and wasteful of resources, thus reducing its practicality.

[0005] This application provides an adjustable laminar bone-biting forceps, including a connecting component and an adjusting component.

[0006] The connecting assembly includes a clamp body, a fixing ring, a push rod, a first push plate, and a connecting rod. The fixing ring is fixedly connected to the clamp body. The push rod is disposed at one end of the clamp body. The connecting rod is fixedly connected to the first push plate and threadedly connected to the push rod. The adjusting assembly includes a second push plate, a connecting ring, elastic blocks, and a rotating disk. The first push plate is in contact with the second push plate. The connecting ring is fixedly connected to the second push plate and in contact with the fixing ring. The elastic blocks are disposed on both sides of the connecting ring. The connecting ring is rotatably engaged with the fixing ring through the elastic blocks. The rotating disk is disposed on one side of the second push plate and rotatably connected to the fixing ring.

[0007] In one specific implementation, the fixing ring has a plurality of grooves inside, and the fixing ring also has a limiting groove inside.

[0008] In the above implementation process, the inside of the fixing ring is provided with several grooves, which can play a role in connecting and limiting through the grooves and the limiting groove.

[0009] In one specific embodiment, the connecting rod includes a crossbar and a threaded rod, the threaded rod being fixedly connected to the crossbar and threadedly connected to the push rod.

[0010] In the above implementation process, the crossbar can serve as a connection, and the threaded connection between the threaded rod and the push rod can facilitate the disassembly and installation of the first push plate.

[0011] In one specific implementation, the elastic block includes a cylinder, an arc-shaped block, and a spring. The arc-shaped block is slidably connected to the cylinder, the spring is disposed inside the cylinder, the spring is fixedly connected to the arc-shaped block, and the arc-shaped block is in contact with the groove.

[0012] In the above process, when the rotating disk is rotated, the connecting ring can be rotated. At this time, the groove will squeeze the arc block, and the arc block will move into the cylinder. Then, the spring force pushes the arc block into the groove at different positions, which can adjust the angle of the second push plate.

[0013] In one specific implementation, the cylinder has a cavity inside, and the arc-shaped block is slidably connected to the cavity.

[0014] In the above implementation process, a cavity is provided inside the cylinder, which can serve as a limiting function.

[0015] In one specific implementation, the rotating disk includes a rotating ring and a limiting ring, the limiting ring being fixedly connected to the rotating ring and rotatably connected to the limiting groove.

[0016] In the above implementation process, the connecting ring can be easily rotated by the rotating ring, while the limiting ring can play the role of limiting the connection.

[0017] In one specific implementation, a plurality of protrusions are provided on one side of the rotating ring.

[0018] In the above implementation process, several protrusions are provided on one side of the rotating ring. The protrusions can increase the friction between the rotating ring and the user's hand, so that the rotating ring can be rotated better.

[0019] Compared with the prior art, the beneficial effects of this application are as follows: First, since the connecting rod and the push rod are connected by a thread, the threaded connection makes it easy to separate the connecting rod and the push rod. The segmented structure makes it easy to disassemble the first push plate. Therefore, if the first push plate is damaged, only the connecting rod and the push rod need to be separated. Second, the connecting ring is rotated and engaged with the fixed ring by an elastic locking block. The locking connection method makes it easy to rotate the connecting ring. Therefore, rotating the rotating disk can drive the second push plate to rotate, which is beneficial for the surgeon to adjust the angle between the first push plate and the second push plate, saving the surgeon a lot of time. It is also convenient to freely adjust the first push plate and the second push plate to bite off from different angles, which has high applicability. At the same time, it is convenient to replace and install the first push plate, thereby improving its practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an adjustable laminar bone-biting forceps structure provided in the embodiments of this application;

[0021] Figure 2 A schematic diagram of the fixing ring structure provided for an embodiment of this application;

[0022] Figure 3 A schematic diagram of the elastic card block structure provided for an embodiment of this application;

[0023] Figure 4 A schematic diagram of the rotating disk structure provided for an embodiment of this application.

[0024] In the diagram: 100-Connecting assembly; 110-Clamp body; 120-Fixing ring; 121-Groove; 122-Limiting groove; 130-Push rod; 140-First push plate; 150-Connecting rod; 151-Horizontal bar; 152-Threaded rod; 200-Adjusting assembly; 210-Second push plate; 220-Connecting ring; 230-Elastic locking block; 231-Cylinder; 2311-Cavity; 232-Arc block; 233-Spring; 240-Rotating disk; 241-Rotating ring; 2411-Protrusion; 242-Limiting ring. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Please see Figure 1-4 This application provides an adjustable laminar bone biting forceps, including a connecting component 100 and an adjusting component 200. The connecting component 100 can facilitate disassembly and installation, and the adjusting component 200 can adjust the angle.

[0028] Please see Figure 1-2 The connecting assembly 100 includes a clamp body 110, a fixing ring 120, a push rod 130, a first push plate 140, and a connecting rod 150. The fixing ring 120 is fixedly connected to the clamp body 110. The push rod 130 is disposed at one end of the clamp body 110. The connecting rod 150 is fixedly connected to the first push plate 140 and is threadedly connected to the push rod 130. The adjustable vertebral plate bone biting forceps of Chinese patent application number CN202222450941.8, which is compared with this application, has already disclosed the specific structure and principle of the clamp body 110, so it will not be described in detail here. The fixing ring 120 has several grooves 121 inside and a limiting groove 122 inside. The grooves 121 and the limiting groove 122 can play a role in connection and limitation.

[0029] In some specific implementations, the connecting rod 150 includes a crossbar 151 and a threaded rod 152. The threaded rod 152 is fixedly connected to the crossbar 151 and threadedly connected to the push rod 130. The crossbar 151 can serve as a connector, and the threaded connection between the threaded rod 152 and the push rod 130 facilitates the disassembly and installation of the first push plate 140.

[0030] Please see Figure 1 , Figure 3 and Figure 4The adjusting assembly 200 includes a second push plate 210, a connecting ring 220, an elastic locking block 230, and a rotating disk 240. The first push plate 140 is in contact with the second push plate 210, the connecting ring 220 is fixedly connected to the second push plate 210, and the connecting ring 220 is in contact with the fixing ring 120. The elastic locking blocks 230 are disposed on both sides of the connecting ring 220. The connecting ring 220 is rotatably engaged with the fixed ring 120 via the elastic locking block 230. The rotating disk 240 is located on one side of the second push plate 210 and is rotatably connected to the fixed ring 120. The elastic locking block 230 includes a cylinder 231, an arc-shaped block 232, and a spring 233. The arc-shaped block 232 is slidably connected to the cylinder 231, and the spring 233 is located inside the cylinder 231. The spring 233 is fixedly connected to the arc-shaped block 232, and the arc-shaped block 232 is in contact with the groove 121. When the rotating disk 240 is rotated, the connecting ring 220 can be rotated. At this time, the groove 121 will squeeze the arc-shaped block 232, and the arc-shaped block 232 will move into the cylinder 231. Then, the elastic force of the spring 233 pushes the arc-shaped block 232 into the groove 121 at different positions, which can adjust the angle of the second push plate 210.

[0031] In some specific implementations, the cylinder 231 has a cavity 2311 inside, and the arc block 232 is slidably connected to the cavity 2311. The cavity 2311 can serve as a limiting device. The rotating disk 240 includes a rotating ring 241 and a limiting ring 242. The limiting ring 242 is fixedly connected to the rotating ring 241 and is rotatably connected to the limiting groove 122. The rotating ring 241 allows the connecting ring 220 to be rotated easily, while the limiting ring 242 serves as a limiting connection. Several protrusions 2411 are provided on one side of the rotating ring 241. The protrusions 2411 can increase the friction between the rotating ring 241 and the user's hand, allowing the rotating ring 241 to be rotated more effectively.

[0032] The working principle of this adjustable vertebral plate bone-biting forceps is as follows: First, the crossbar 151 serves as a connector. The threaded rod 152 is threadedly connected to the push rod 130, facilitating the disassembly and installation of the first push plate 140. The threaded connection also allows for easy separation of the crossbar 151 and the push rod 130. The segmented structure facilitates the disassembly of the first push plate 140. Therefore, if the first push plate 140 is damaged, it is only necessary to separate the crossbar 151 from the push rod 130. When the rotating disk 240 is rotated, the connecting ring 220 is driven to rotate. At this time, the groove 121 will squeeze the arc-shaped block 232, causing the arc-shaped block 232 to move into the cylinder 231. The device moves and then, through the elastic force of spring 233, pushes the arc-shaped block 232 into the groove 121 at different positions, which can adjust the angle of the second push plate 210. The snap-fit ​​connection method facilitates the rotation of the connecting ring 220. Therefore, by rotating the rotating disk 240, the second push plate 210 can be rotated, which is beneficial for the surgeon to adjust the angle between the first push plate 140 and the second push plate 210, saving the surgeon a lot of time. It is also convenient to freely adjust the first push plate 140 and the second push plate 210 to bite off from different angles, which has high applicability. At the same time, it is convenient to replace and install the first push plate 140, thereby improving its practicality.

[0033] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals 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.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An adjustable laminar bone-biting forceps, characterized in that, include A connecting assembly (100) includes a clamp body (110), a retaining ring (120), a push rod (130), a first push plate (140), and a connecting rod (150). The retaining ring (120) is fixedly connected to the clamp body (110), the push rod (130) is disposed at one end of the clamp body (110), the connecting rod (150) is fixedly connected to the first push plate (140), and the connecting rod (150) is threadedly connected to the push rod (130). An adjustment assembly (200) includes a second push plate (210), a connecting ring (220), an elastic locking block (230), and a rotating disk (240). The first push plate (140) is in contact with the second push plate (210), the connecting ring (220) is fixedly connected to the second push plate (210), and the connecting ring (220) is in contact with the fixed ring (120). The elastic locking block (230) is disposed on both sides of the connecting ring (220), and the connecting ring (220) is rotatably engaged with the fixed ring (120) through the elastic locking block (230). The rotating disk (240) is disposed on one side of the second push plate (210), and the rotating disk (240) is rotatably connected to the fixed ring (120).

2. The adjustable laminar bone-biting forceps according to claim 1, characterized in that, The fixing ring (120) has a plurality of grooves (121) inside, and the fixing ring (120) has a limit groove (122) inside.

3. The adjustable laminar bone-biting forceps according to claim 1, characterized in that, The connecting rod (150) includes a crossbar (151) and a threaded rod (152), the threaded rod (152) being fixedly connected to the crossbar (151) and the threaded rod (152) being threadedly connected to the push rod (130).

4. The adjustable laminar bone-biting forceps according to claim 2, characterized in that, The elastic block (230) includes a cylinder (231), an arc block (232) and a spring (233). The arc block (232) is slidably connected to the cylinder (231). The spring (233) is disposed inside the cylinder (231). The spring (233) is fixedly connected to the arc block (232), and the arc block (232) is in contact with the groove (121).

5. An adjustable laminar bone-biting forceps according to claim 4, characterized in that, The cylinder (231) has a cavity (2311) inside, and the arc block (232) is slidably connected to the cavity (2311).

6. An adjustable laminar bone-biting forceps according to claim 5, characterized in that, The rotating disk (240) includes a rotating ring (241) and a limiting ring (242). The limiting ring (242) is fixedly connected to the rotating ring (241), and the limiting ring (242) is rotatably connected to the limiting groove (122).

7. An adjustable laminar bone-biting forceps according to claim 6, characterized in that, The rotating ring (241) has several protrusions (2411) on one side.

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