Vertebral plate rongeur with adjustable marginal opening distance
By designing the combination of worm and rotating disc in the lamina bone digit forceps, the adjustability of the edge orifice distance is achieved, solving the problem that the edge orifice distance cannot be adjusted according to the needs in the prior art, and reducing the risk of surgery.
Patent Information
- Application Number
- CN202421256399.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing laminar bone digitizers cannot adjust the marginal distance according to the needs of use, resulting in frequent changes of models during surgery, increasing the risk of surgery.
A lamellar bone nipping forceps with adjustable edge distance are designed. By setting up a worm and a rotating disc, the threaded connection and the cooperation of the slider are used to adjust the edge distance between the moving jaw nozzle and the fixed jaw nozzle.
The design allows easy adjustment of the margin width during the surgery, reducing the need for frequent replacement of bone bite forceps and reducing the risk of surgery.
Smart Images
Figure CN222787813U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a vertebral plate bone rongeur with adjustable edge distance. Background Art
[0002] Vertebral lamina rongeurs are surgical instruments used to bite dead bones or trim bone stumps during spinal surgery. They are mainly used in laminectomy, posterior cervical discectomy with fenestration, continuous laminectomy, and spinal canal decompression. Vertebral lamina rongeurs are composed of a cover plate that slides with the pliers body. The movable handle uses the principle of a lever to push the pliers head to shear the vertebral lamina bones, and then the elastic force of the spring is used to reset it.
[0003] Vertebral rib rongeurs are used to bite off excess bone during spinal surgery. Due to different surgical locations and ranges, they are divided into models with different edge widths. During surgical operations, it is necessary to frequently replace the model of vertebral rib rongeurs. In delicate operations, unnecessary surgical operations will bring additional surgical risks. Therefore, the present application provides a vertebral rib rongeurs with adjustable edge distance to meet the needs. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a vertebral plate rongeur with adjustable edge distance to solve the problem that the existing vertebral plate rongeur cannot adjust the edge distance according to use requirements.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] A vertebral plate bone-gnawing forceps with adjustable edge distance, comprising a pliers handle, a movable handle and a movable pliers mouth, the movable handle is installed inside the pliers handle, a lower pliers rod is installed on the outer surface of the pliers handle, an upper pliers rod is installed on the outside of the movable handle, a fixed pliers mouth is installed on the outer surface of the lower pliers rod, a sliding groove is provided inside the upper pliers rod, a sliding rod is embedded in the sliding groove, a sliding seat is installed on the top of the sliding rod, the movable pliers mouth is installed outside the sliding seat, a mounting sleeve is installed on the inner wall of the sliding groove, a threaded rod is embedded in the mounting sleeve, a groove is provided inside the sliding rod, a threaded sleeve is installed on the inner wall of the groove, and the outer wall of the threaded rod is threadedly connected to the inner wall of the threaded sleeve.
[0007] Optionally, a rotating plate is installed at one end of the threaded rod, a rotating groove is provided inside the upper clamp rod, a rotating sleeve is installed on the inner wall of the rotating groove, a worm is installed on the top of the rotating plate, a rotating shaft is rotatably sleeved on the inner wall of the rotating sleeve, a rotating disk is installed at one end of the rotating shaft, a plurality of rotating pins are installed on the top of the rotating disk, the rotating pins are meshed with the worm, and an adjusting block is installed on the other end of the rotating shaft.
[0008] Optionally, a connecting frame is installed on the outer wall of the sliding seat, a connecting slot is arranged inside the connecting frame, a connecting block is installed on the outer wall of the movable pliers mouth, the connecting block is embedded in the connecting slot, a movable groove is arranged inside the sliding seat, a sliding baffle is embedded in the movable groove, and a pushing block is installed on the outer wall of the sliding baffle.
[0009] Optionally, a mounting groove is provided inside the sliding seat, a driving slide is installed on the outer wall of the sliding baffle, the driving slide is embedded in the mounting groove, a placement sleeve is installed on the inner wall of the mounting groove and the outer wall of the driving slide, and a fixing spring is embedded in the placement sleeve.
[0010] Optionally, a limit slider is installed on the outer wall of the lower clamp rod, and a limit slider frame is installed on the outer wall of the movable clamp mouth, and the limit slider frame is slidably connected to the limit slider.
[0011] Compared with the prior art, the utility model has at least the following beneficial effects:
[0012] In the above scheme, a worm and a rotating disk are provided, the rotating disk is installed at one end of the rotating shaft, and the rotating pin is embedded in the worm. Then, the rotating disk is driven to rotate by rotating the adjusting block, and the engagement between the rotating pin and the worm is utilized to drive the threaded rod to rotate. Then, the threaded connection between the threaded rod and the threaded sleeve is utilized to drive the sliding rod to move inside the sliding groove, so as to facilitate the adjustment of the position of the movable jaw, thereby being able to adjust the edge distance between the movable jaw and the fixed jaw according to the use requirements, being able to conveniently adjust the edge width during the operation, and being able to avoid frequent replacement of bone-holding forceps during the operation to cause additional surgical risks to the operation.
[0013] By providing a connecting block, a connecting slot and a sliding baffle, the connecting block is installed inside the connecting slot, and then a fixed spring installed inside the sleeve is used to push the slide plate to move, and at the same time drive the sliding baffle to slide inside the moving slot, so that the sliding baffle moves to the outside of the connecting block, so that the connecting block can be fixed inside the connecting frame, and the movable pliers mouth can be installed outside the fixed sliding seat, so as to facilitate the installation and disassembly of the movable pliers mouth. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.
[0015] Figure 1 The schematic diagram of the three-dimensional structure of the vertebral plate rongeur with adjustable edge distance;
[0016] Figure 2The schematic diagram of the main structure of the vertebral plate rongeur with adjustable margin distance is shown;
[0017] Figure 3 for Figure 2 Schematic diagram of the AA section structure;
[0018] Figure 4 The left side structural diagram of the vertebral plate rongeur with adjustable margin distance;
[0019] Figure 5 for Figure 4 Schematic diagram of the structure of the middle BB section;
[0020] Figure 6 for Figure 5 A partial enlarged structural diagram of part A;
[0021] Figure 7 for Figure 5 The schematic diagram of the partial enlarged structure of part B in the middle;
[0022] Figure 8 The schematic diagram of the top view of the structure of the vertebral plate bone rongeur with adjustable edge distance is shown.
[0023] [Reference Signs]
[0024] 1. Clamp handle; 2. Moving handle; 3. Upper clamp rod; 4. Lower clamp rod; 5. Fixed jaw; 6. Moving jaw; 7. Slide groove; 8. Slide rod; 9. Sliding seat; 10. Connecting frame; 11. Connecting card slot; 12. Connecting card block; 13. Installing sleeve; 14. Threaded rod; 15. Groove; 16. Threaded sleeve; 17. Rotating plate; 18. Worm; 19. Rotating groove; 20. Rotating sleeve; 21. Rotating shaft; 22. Rotating disk; 23. Rotating pin; 24. Adjusting block; 25. Moving groove; 26. Sliding baffle; 27. Pushing block; 28. Installing groove; 29. Placing sleeve; 30. Fixing spring; 31. Limiting slider; 32. Limiting slide frame; 33. Driving slide plate.
[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION
[0026] The following is a detailed description of a vertebral plate rongeur with adjustable edge distance provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.
[0027] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).
[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.
[0029] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.
[0030] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.
[0031] like Figure 1-Figure 8As shown, an embodiment of the utility model provides a vertebral plate bone-holding forceps with adjustable edge distance, comprising a forceps handle 1, a movable handle 2 and a movable forceps mouth 6, the movable handle 2 is installed inside the forceps handle 1, a lower forceps rod 4 is installed on the outer surface of the forceps handle 1, an upper forceps rod 3 is installed outside the movable handle 2, a fixed forceps mouth 5 is installed on the outer surface of the lower forceps rod 4, a slide groove 7 is provided inside the upper forceps rod 3, a slide rod 8 is embedded in the slide groove 7, a slide seat 9 is installed on the top of the slide rod 8, the movable forceps mouth 6 is installed outside the slide seat 9, a mounting sleeve 13 is installed on the inner wall of the slide groove 7, a threaded rod 14 is embedded in the mounting sleeve 13, a groove 15 is provided inside the slide rod 8, a threaded sleeve 16 is installed on the inner wall of the groove 15, and the outer wall of the threaded rod 14 is threadedly connected with the inner wall of the threaded sleeve 16.
[0032] like Figure 3 , Figure 4 and Figure 6 As shown, a rotating plate 17 is installed at one end of the threaded rod 14, a rotating groove 19 is arranged inside the upper clamp rod 3, a rotating sleeve 20 is installed on the inner wall of the rotating groove 19, a worm 18 is installed on the top of the rotating plate 17, a rotating shaft 21 is rotatably sleeved on the inner wall of the rotating sleeve 20, a rotating disk 22 is installed at one end of the rotating shaft 21, a plurality of rotating pins 23 are installed on the top of the rotating disk 22, the rotating pins 23 are meshed with the worm 18, an adjusting block 24 is installed at the other end of the rotating shaft 21, and by setting the worm 18 and the rotating disk 22, the adjusting block 24 is rotated to drive The rotating disk 22 rotates, and the engagement between the rotating pin 23 and the worm 18 is utilized to drive the threaded rod 14 to rotate. Then, the threaded connection between the threaded rod 14 and the threaded sleeve 16 is utilized to drive the slide rod 8 to move inside the slide groove 7, so as to facilitate the adjustment of the position of the movable forceps mouth 6. Thus, the edge distance between the movable forceps mouth 6 and the fixed forceps mouth 5 can be adjusted according to the use requirements, and the edge width can be conveniently adjusted during the operation, which can avoid frequent replacement of bone forceps during the operation and cause additional surgical risks to the operation.
[0033] like Figure 5 , Figure 7 and Figure 8As shown, the outer wall of the sliding seat 9 is installed with a connecting frame 10, and a connecting card slot 11 is arranged inside the connecting frame 10, and a connecting card block 12 is installed on the outer wall of the movable pliers mouth 6, and the connecting card block 12 is embedded in the connecting card slot 11. A moving groove 25 is arranged inside the sliding seat 9, and a sliding baffle 26 is embedded inside the moving groove 25. A pushing block 27 is installed on the outer wall of the sliding baffle 26, and a mounting groove 28 is arranged inside the sliding seat 9. A driving slide 33 is installed on the outer wall of the sliding baffle 26, and the driving slide 33 is embedded in the mounting groove 28. The inner wall of the mounting groove 28 and the outer wall of the driving slide 33 are both installed with a placement sleeve 29 A fixing spring 30 is embedded in the placement sleeve 29. By setting the connecting block 12, the connecting slot 11 and the sliding baffle 26, the connecting block 12 is installed in the connecting slot 11, and then the fixing spring 30 installed in the placement sleeve 29 is used to push the sliding plate 33 to move, and at the same time drive the sliding baffle 26 to slide in the moving slot 25, so that the sliding baffle 26 moves to the outside of the connecting block 12, so that the connecting block 12 can be fixed in the connection frame 10, and the movable pliers mouth 6 can be installed on the outside of the fixed sliding seat 9, so as to facilitate the installation and disassembly of the movable pliers mouth 6.
[0034] like Figure 1 and Figure 2 As shown, a limit slider 31 is installed on the outer wall of the lower clamp rod 4, and a limit slider frame 32 is installed on the outer wall of the movable clamp mouth 6. The limit slider frame 32 is slidably connected to the limit slider 31.
[0035] The technical solution provided by the utility model is to set a worm and a rotating disk, install the rotating disk at one end of the rotating shaft, and make the rotating pin engage in the worm, and then drive the rotating disk to rotate by rotating the adjusting block, utilize the meshing between the rotating pin and the worm to drive the threaded rod to rotate, and then utilize the threaded connection between the threaded rod and the threaded sleeve to drive the sliding rod to move in the sliding groove, so as to facilitate the adjustment of the position of the movable jaw, so that the edge distance between the movable jaw and the fixed jaw can be adjusted according to the use requirements, the edge width can be conveniently adjusted during the operation, and the frequent replacement of bone forceps during the operation can be avoided to cause additional surgical risks to the operation.
[0036] By providing a connecting block, a connecting slot and a sliding baffle, the connecting block is installed inside the connecting slot, and then a fixed spring installed inside the sleeve is used to push the slide plate to move, and at the same time drive the sliding baffle to slide inside the moving slot, so that the sliding baffle moves to the outside of the connecting block, so that the connecting block can be fixed inside the connecting frame, and the movable pliers mouth can be installed outside the fixed sliding seat, so as to facilitate the installation and disassembly of the movable pliers mouth.
[0037] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.
[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A vertebral plate rongeur with adjustable edge distance, comprising a pliers handle, a movable handle and a movable pliers mouth, characterized in that: The movable handle is installed inside the clamp handle, and a lower clamp rod is installed on the outer surface of the clamp handle; An upper clamp rod is installed outside the movable handle, a fixed clamp mouth is installed on the outer surface of the lower clamp rod, a sliding groove is arranged inside the upper clamp rod, a sliding rod is embedded inside the sliding groove, and a sliding seat is installed on the top of the sliding rod; The movable pliers nozzle is installed outside the sliding seat, the inner wall of the sliding groove is installed with a mounting sleeve, a threaded rod is embedded inside the mounting sleeve, a groove is provided inside the sliding rod, a threaded sleeve is installed on the inner wall of the groove, and the outer wall of the threaded rod is threadedly connected with the inner wall of the threaded sleeve.
2. The vertebral plate rongeur with adjustable margin distance according to claim 1, characterized in that: A rotating plate is installed at one end of the threaded rod, a rotating groove is arranged inside the upper clamp rod, and a rotating sleeve is installed on the inner wall of the rotating groove.
3. The vertebral plate rongeur with adjustable margin distance according to claim 2, characterized in that: A worm is installed on the top of the rotating plate, a rotating shaft is rotatably sleeved on the inner wall of the rotating sleeve, and a rotating disk is installed at one end of the rotating shaft.
4. The vertebral plate rongeur with adjustable margin distance according to claim 3, characterized in that: A plurality of rotating pins are installed on the top of the rotating disk, and the rotating pins are meshed with the worm.
5. The vertebral plate rongeur with adjustable margin distance according to claim 3, characterized in that: An adjusting block is installed at the other end of the rotating shaft.
6. The vertebral plate rongeur with adjustable margin distance according to claim 1, characterized in that: A connecting frame is installed on the outer wall of the sliding seat, a connecting slot is arranged inside the connecting frame, and a connecting block is installed on the outer wall of the movable jaw, and the connecting block is embedded in the connecting slot.
7. The vertebral plate rongeur with adjustable margin distance according to claim 6, characterized in that: A moving groove is arranged inside the sliding seat, a sliding baffle is embedded inside the moving groove, and a pushing block is installed on the outer wall of the sliding baffle.
8. The vertebral plate rongeur with adjustable margin distance according to claim 7, characterized in that: The sliding seat is provided with a mounting groove inside, and a driving slide plate is installed on the outer wall of the sliding baffle, and the driving slide plate is embedded in the mounting groove.
9. The vertebral plate rongeur with adjustable margin distance according to claim 8, characterized in that: The inner wall of the installation groove and the outer wall of the driving slide plate are both installed with a placement sleeve, and a fixing spring is embedded in the placement sleeve.
10. The vertebral plate rongeur with adjustable margin distance according to claim 1, characterized in that: A limit slide block is installed on the outer wall of the lower clamp rod, and a limit slide frame is installed on the outer wall of the movable clamp mouth. The limit slide frame is slidably connected with the limit slide block.