Spine channel expansion mechanism with adjustable width
By designing the spinal channel expansion mechanism with a adjustable width, a fine -tuning and disassembly mechanism is adopted to solve the problem of accurate adjustment and short service life of existing devices, and achieve the effect of accurate channel expansion and extending the service life of the device.
Patent Information
- Application Number
- CN202420577092.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-23
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-23
AI Technical Summary
The existing spinal channel expansion device is difficult to accurately adjust when expanding the channel width, resulting in the expansion channel width not being accurate enough, which increases the difficulty of subsequent suture work, and the device's service life is short, which increases the cost of maintenance and replacement.
Designed a spinal channel expansion mechanism with a wide range of width, adopts a fine -tuning mechanism and disassembly mechanism to achieve subtle adjustment of the width of the channel through the cooperation of the threaded pole and rotating the handle. Life life.
A precise adjustment of the width of the spine channel, improved the efficiency of surgery, extended the service life of the device, and reduced the cost of maintenance and replacement.
Smart Images
Figure CN222398717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spinal channel expansion, and more specifically, to a spinal channel expansion mechanism with adjustable width. Background Art
[0002] Spinal canal dilation is a surgical procedure that is often used to treat spinal diseases such as herniated discs and spinal stenosis. This procedure relieves symptoms by widening the spinal canal or the passageway in the spine, alleviating nerve compression and improving blood circulation to the spinal cord and nerve roots. Spinal canal dilation surgery is an effective treatment that can help patients relieve symptoms of spinal diseases.
[0003] When a general device expands the channel width, it first presses one end of the pressing block above the gear to make the teeth below the other end of the pressing block leave the top of the rack, then drags the gear above the teeth to make the gear roll over the teeth and then drive the expansion plate to move. When it moves to the appropriate position, the pressing plate is released to make the teeth below the pressing plate mesh with the rack, thereby achieving fixation and expansion. However, the rack and the teeth must mesh with each other to achieve fixation. When it moves to a relative position, the teeth below the pressing plate do not mesh with the rack, resulting in looseness. Therefore, it can only be moved to an approximate position by means of gears and racks, so it needs to be modified and optimized. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a spinal channel expansion mechanism with adjustable width, which has the advantages of being adjustable and detachable.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A spinal channel expansion mechanism with adjustable width, comprising a rack and a fixed end;
[0006] The fixed end is fixedly arranged above the rack; and further comprises:
[0007] An expansion mechanism, fixedly arranged on one side of the fixed end;
[0008] A fine-adjustment mechanism, fixedly arranged on one side of the expansion mechanism;
[0009] The fine-tuning mechanism includes a fixing frame 1 fixedly arranged on one side of the expansion mechanism, a fixing frame 2 fixedly installed on one side of the expansion mechanism, a threaded rod 2 is sleeved on the internal thread of the fixing frame 1, the other end of the threaded rod 2 is rotatably connected to the fixing frame 2, a rotating handle is fixedly installed on the other end of the threaded rod 2, and a connecting frame 2 is sleeved on the upper thread of the threaded rod 2.
[0010] As a preferred technical solution of the utility model, it also includes:
[0011] A disassembly mechanism, fixedly arranged above the expansion mechanism;
[0012] The disassembly mechanism includes a fixed shell fixedly arranged above the expansion mechanism, a top cover is fixedly installed above the fixed shell, a knob is rotatably installed inside the fixed shell, a threaded rod 1 is threadedly sleeved on the inner thread of the knob, the threaded rod 1 movably penetrates the expansion mechanism, and a connecting block 1 is threadedly sleeved on the upper side of the threaded rod 1.
[0013] As a preferred technical solution of the utility model, the expansion mechanism includes a connecting frame 1 fixedly arranged on one side of the fixed end, a fixing block 1 is fixedly installed on the other side of the connecting frame 1, a fixing shell of the disassembly mechanism is fixedly connected to the top of the fixing block 1, and also includes an expansion plate 1 fixedly installed on one side of the connecting block 1;
[0014] A movable shell is movably sleeved above the rack, a gear is rotatably installed inside the movable shell, the gear and the rack are meshed with each other, a bottom plate is fixedly installed on one side of the movable shell, a shell is fixedly installed above the bottom plate, a spring is fixedly installed inside the shell, a pressing and fixing plate is fixedly installed above the spring, one end of the pressing and fixing plate is meshed with the rack, one side of the movable shell is fixedly connected to a fixing frame 1 and a fixing frame 2, one end of the connecting frame 2 is fixedly installed with a fixing block 2, a connecting block 2 is movably installed inside the fixed block 2, and an expansion plate 2 is fixedly installed on one side of the connecting block 2.
[0015] As a preferred technical solution of the utility model, the two groups of disassembly mechanisms are both fixedly arranged above the expansion mechanism and evenly distributed above the first fixing block and the second fixing block.
[0016] As a preferred technical solution of the utility model, the expansion plate 1 is semicircular, the expansion plate 2 is also semicircular, and the expansion plate 1 and the expansion plate 2 are both movably arranged at one end of the expansion mechanism.
[0017] As a preferred technical solution of the utility model, the number of the fixing blocks 1 is two, both of which are fixedly arranged at one end of the connecting frame 1 and evenly distributed on the upper and lower sides of one end of the connecting frame 1.
[0018] As a preferred technical solution of the utility model, the number of the fixing blocks 2 is two, both of which are fixedly arranged at one end of the connecting frame 2 and evenly distributed on the upper and lower sides of one end of the connecting frame 2.
[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0020] 1. The utility model drives the threaded rod 2 to rotate counterclockwise by rotating the rotating handle counterclockwise, and drives the connecting frame 2 to move in the direction of the rotating handle. When the connecting frame 2 moves to a suitable position, the rotating handle is stopped, and the channel can be slightly expanded again. Compared with the traditional device, the device can slightly expand the expanded channel again through the fine-tuning mechanism, so that the expanded width is more accurate, and the expansion of the expansion mechanism is avoided so that the expanded channel width is larger, which increases the difficulty of subsequent suturing work and improves the working efficiency of the device.
[0021] 2. The utility model drives the threaded rod 1 to move upward by turning the knob counterclockwise. When the threaded rod 1 moves out of the expansion mechanism, stop turning the knob and replace the expansion mechanism. When the replacement is completed, first install the expansion mechanism under the fixed block 1, and then turn the knob clockwise to allow the threaded rod 1 to re-enter the expansion mechanism to gain access to the interior. Compared with traditional devices, the device can replace some parts inside the expansion mechanism through the disassembly mechanism, thereby increasing the service life of other parts, avoiding damage to one part that requires replacement of the entire device, and reducing the cost of using the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the structure of the utility model;
[0023] Figure 2 For this utility model Figure 1 A local enlarged schematic diagram of point A;
[0024] Figure 3 It is a schematic diagram of the upper structure of the utility model;
[0025] Figure 4 For this utility model Figure 3 A local enlarged schematic diagram of point B;
[0026] Figure 5 It is a schematic diagram of the side cross-sectional structure of the utility model;
[0027] Figure 6 For this utility model Figure 5 A local enlarged schematic diagram of point C;
[0028] Figure 7 For this utility model Figure 5 A partial enlarged schematic diagram of point D.
[0029] In the figure: 1. rack; 2. fixed end; 3. connecting frame 1; 4. fixing block 1; 5. fixing block 2; 6. threaded rod 1; 7. fixed shell; 8. top cover; 9. knob; 10. connecting block 1; 11. expansion plate 1; 12. expansion plate 2; 13. connecting block 2; 14. connecting frame 2; 15. threaded rod 2; 16. fixing frame 1; 17. fixing frame 2; 18. turning handle; 19. moving shell; 20. gear; 21. bottom plate; 22. shell; 23. spring; 24. pressing fixing plate. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] like Figures 1 to 7 As shown, the utility model provides a spinal channel expansion mechanism with adjustable width, including a rack 1 and a fixed end 2; the fixed end 2 is fixedly arranged above the rack 1; and also includes:
[0032] An expansion mechanism, fixedly arranged on one side of the fixed end 2;
[0033] A fine-adjustment mechanism, fixedly arranged on one side of the expansion mechanism;
[0034] The fine-tuning mechanism includes a fixing frame 16 fixedly arranged on one side of the expansion mechanism, a fixing frame 2 17 fixedly installed on one side of the expansion mechanism, a threaded rod 2 15 is sleeved on the internal thread of the fixing frame 16, the other end of the threaded rod 2 15 is rotatably connected to the fixing frame 2 17, a rotating handle 18 is fixedly installed on the other end of the threaded rod 2 15, and a connecting frame 2 14 is sleeved on the upper thread of the threaded rod 2 15.
[0035] When the staff expands the expansion mechanism to a relative approximate position, but since it only moves to an approximate position, it is necessary to fine-tune its position. The staff rotates the rotating handle 18 counterclockwise. When the rotating handle 18 is rotated counterclockwise, it will drive the threaded rod 15 to rotate counterclockwise. When the threaded rod 15 rotates counterclockwise, since one end of the threaded rod 15 is rotatably connected to the fixed frame 17, and a thread is provided at the connection between the connecting frame 14 and the threaded rod 15, as the threaded rod 15 rotates, the connecting frame 14 will be driven to move in the direction of the rotating handle 18. When the connecting frame 14 moves to a suitable position, the rotating handle 18 is stopped.
[0036] By rotating the rotating handle 18 counterclockwise, the threaded rod 15 will be driven to rotate counterclockwise, driving the connecting frame 14 to move in the direction of the rotating handle 18. When the connecting frame 14 moves to a suitable position, the rotating handle 18 is stopped, and the channel can be slightly expanded again. Compared with the traditional device, the device can slightly expand the expanded channel again through the fine-tuning mechanism, making the expanded width more precise, avoiding the expansion of the expansion mechanism that makes the expanded channel width larger, increasing the difficulty of subsequent suturing work, and improving the working efficiency of the device.
[0037] The device further comprises: a disassembly mechanism, which is fixedly arranged above the expansion mechanism;
[0038] The disassembly mechanism includes a fixed shell 7 fixedly arranged above the expansion mechanism, a top cover 8 is fixedly installed above the fixed shell 7, a knob 9 is rotatably installed inside the fixed shell 7, a threaded rod 6 is threadedly sleeved inside the knob 9, the threaded rod 6 movably penetrates the expansion mechanism, and a connecting block 10 is threadedly sleeved above the threaded rod 6.
[0039] When the staff needs to replace some parts inside the expansion mechanism, the staff first rotates the knob 9 counterclockwise. When the knob 9 is rotated counterclockwise, and a thread is provided at the connection between the knob 9 and the threaded rod 6, as the knob 9 is rotated counterclockwise, the threaded rod 6 is driven to move upward, so that the threaded rod 6 moves out of the top of the expansion mechanism. When the expansion mechanism needs to be fixed, the expansion mechanism is first installed under the fixing block 4, and then the knob 9 is rotated clockwise so that the rotation of the knob 9 drives the threaded rod 6 to move to the inside of the expansion mechanism.
[0040] By turning the knob 9 counterclockwise, the threaded rod 6 will be driven to move upward. When the threaded rod 6 moves out of the expansion mechanism, stop turning the knob 9 and replace the expansion mechanism. When the replacement is completed, first install the expansion mechanism under the fixed block 4, and then turn the knob 9 clockwise to allow the threaded rod 6 to re-enter the expansion mechanism to gain access to the interior. Compared with the traditional device, the device can replace some parts inside the expansion mechanism through the disassembly mechanism, thereby increasing the service life of other parts, avoiding damage to one part that requires replacement of the entire device, and reducing the use cost of the device.
[0041] The expansion mechanism includes a connecting frame 3 fixedly arranged on one side of the fixed end 2, a fixing block 4 is fixedly installed on the other side of the connecting frame 3, a fixing shell 7 of the disassembly mechanism is fixedly connected to the top of the fixing block 4, and an expansion plate 11 fixedly installed on one side of the connecting block 10;
[0042] A movable housing 19 is movably sleeved above the rack 1, and a gear 20 is rotatably installed inside the movable housing 19, and the gear 20 meshes with the rack 1. A base plate 21 is fixedly installed on one side of the movable housing 19, and a housing 22 is fixedly installed above the base plate 21. A spring 23 is fixedly installed inside the housing 22, and a pressing plate 24 is fixedly installed above the spring 23. One end of the pressing plate 24 meshes with the rack 1. One side of the movable housing 19 is fixedly connected to a fixing frame 16 and a fixing frame 2 17, and a fixing block 2 5 is fixedly installed on one end of the connecting frame 2 14, and a connecting block 2 13 is movably installed inside the fixed block 25, and an expansion plate 2 12 is fixedly installed on one side of the connecting block 2 13.
[0043] The spinal channel during surgery is expanded to make it easier for staff to perform surgery inside, thereby improving the efficiency of the operation.
[0044] Among them, the two groups of disassembly mechanisms are fixedly arranged above the expansion mechanism and are evenly distributed above the fixing block 1 4 and the fixing block 2 5 .
[0045] The expansion plate 1 11 and the expansion plate 2 12 in the expansion mechanism can be replaced, thereby reducing the use cost of the device and improving the working efficiency of the device.
[0046] The expansion plate 1 11 is semicircular, the expansion plate 2 12 is also semicircular, and both the expansion plate 1 11 and the expansion plate 2 12 are movably arranged at one end of the expansion mechanism.
[0047] It can better protect the skin on both sides of the spinal canal and avoid being too sharp to cause damage to the skin on both sides of the spinal canal.
[0048] There are two fixing blocks 4 , both of which are fixedly arranged at one end of the connecting frame 3 and evenly distributed at the upper and lower sides of one end of the connecting frame 3 .
[0049] The disassembly mechanism can be fixed to avoid only one fixation, which causes the expansion plate 11 in the expansion mechanism to automatically slide off and fail to be fixed.
[0050] There are two fixing blocks 5 , both of which are fixedly disposed at one end of the connecting frame 14 and are evenly distributed at the upper and lower sides of one end of the connecting frame 14 .
[0051] The disassembly mechanism can be fixed to prevent one end of the disassembly mechanism from being unfixed, causing the expansion plate 12 in the expansion mechanism to automatically slide off and damage the expansion plate 12, thereby reducing the use cost of the device.
[0052] The working principle and use process of this utility model:
[0053] When the staff expands the expansion mechanism to a relative approximate position, but since it only moves to an approximate position, it is necessary to fine-tune its position. The staff rotates the rotating handle 18 counterclockwise. When the rotating handle 18 is rotated counterclockwise, it will drive the threaded rod 15 to rotate counterclockwise. When the threaded rod 15 rotates counterclockwise, since one end of the threaded rod 15 is rotatably connected to the fixed frame 17, and a thread is provided at the connection between the connecting frame 14 and the threaded rod 15, as the threaded rod 15 rotates, the connecting frame 14 will be driven to move in the direction of the rotating handle 18. When the connecting frame 14 moves to a suitable position, the rotating handle 18 is stopped.
[0054] When the staff needs to replace some parts inside the expansion mechanism, the staff first rotates the knob 9 counterclockwise. When the knob 9 is rotated counterclockwise, and a thread is provided at the connection between the knob 9 and the threaded rod 6, as the knob 9 is rotated counterclockwise, the threaded rod 6 is driven to move upward, so that the threaded rod 6 moves out of the top of the expansion mechanism. When the expansion mechanism needs to be fixed, the expansion mechanism is first installed under the fixing block 4, and then the knob 9 is rotated clockwise so that the rotation of the knob 9 drives the threaded rod 6 to move to the inside of the expansion mechanism.
[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A spinal channel expansion mechanism with adjustable width, comprising a rack (1) and a fixed end (2); characterized in that: The fixed end (2) is fixedly arranged above the rack (1); and further comprises: An expansion mechanism, fixedly arranged on one side of the fixed end (2); A fine-adjustment mechanism, fixedly arranged on one side of the expansion mechanism; The fine adjustment mechanism comprises a fixing frame 1 (16) fixedly arranged on one side of the expansion mechanism, a fixing frame 2 (17) fixedly installed on one side of the expansion mechanism, a threaded rod 2 (15) is sleeved on the inner thread of the fixing frame 1 (16), the other end of the threaded rod 2 (15) is rotatably connected to the fixing frame 2 (17), a rotating handle (18) is fixedly installed on the other end of the threaded rod 2 (15), and a connecting frame 2 (14) is sleeved on the upper thread of the threaded rod 2 (15).
2. The spinal channel expansion mechanism with adjustable width according to claim 1, characterized in that: Also included are: A disassembly mechanism, fixedly arranged above the expansion mechanism; The disassembly mechanism comprises a fixed shell (7) fixedly arranged above the expansion mechanism, a top cover (8) fixedly installed above the fixed shell (7), a knob (9) rotatably installed inside the fixed shell (7), a threaded rod (6) being threadedly sleeved inside the knob (9), the threaded rod (6) movably passing through the expansion mechanism, and a connecting block (10) being threadedly sleeved above the threaded rod (6).
3. The spinal channel expansion mechanism with adjustable width according to claim 1, characterized in that: The expansion mechanism comprises a connecting frame (3) fixedly arranged on one side of the fixed end (2), a fixing block (4) fixedly installed on the other side of the connecting frame (3), a fixing shell (7) of the disassembly mechanism fixedly connected to the top of the fixing block (4), and an expansion plate (11) fixedly installed on one side of the connecting block (10); A movable housing (19) is movably sleeved above the rack (1), a gear (20) is rotatably mounted inside the movable housing (19), the gear (20) and the rack (1) are meshed with each other, a bottom plate (21) is fixedly mounted on one side of the movable housing (19), a housing (22) is fixedly mounted above the bottom plate (21), a spring (23) is fixedly mounted inside the housing (22), a pressing plate (24) is fixedly mounted above the spring (23), one end of the pressing plate (24) is meshed with the rack (1), one side of the movable housing (19) is fixedly connected to a fixing frame 1 (16) and a fixing frame 2 (17), one end of the connecting frame 2 (14) is fixedly mounted with a fixing block 2 (5), a connecting block 2 (13) is movably mounted inside the fixing block 2 (5), and an expansion plate 2 (12) is fixedly mounted on one side of the connecting block 2 (13).
4. The spinal channel expansion mechanism with adjustable width according to claim 2, characterized in that: The two groups of disassembly mechanisms are both fixedly arranged above the expansion mechanism and are evenly distributed above the fixing block 1 (4) and the fixing block 2 (5).
5. The width-adjustable spinal channel expansion mechanism according to claim 3, characterized in that: The expansion plate 1 (11) is semicircular, the expansion plate 2 (12) is also semicircular, and the expansion plate 1 (11) and the expansion plate 2 (12) are both movably arranged at one end of the expansion mechanism.
6. The spinal channel expansion mechanism with adjustable width according to claim 3, characterized in that: The number of the fixing blocks 1 (4) is two, both of which are fixedly arranged at one end of the connecting frame 1 (3) and evenly distributed at the upper and lower sides of one end of the connecting frame 1 (3).
7. The spinal channel expansion mechanism with adjustable width according to claim 3, characterized in that: There are two fixing blocks 2 (5), both of which are fixedly arranged at one end of the connecting frame 2 (14) and evenly distributed at the upper and lower sides of one end of the connecting frame 2 (14).