Surgical steel plate pre-bending device
By designing a pre-bending device for surgical plates, the bending angle of the plates can be precisely controlled using fixing and adjusting components. This solves the problem of difficulty in controlling the bending angle of plates in traditional surgery, and improves surgical efficiency and treatment outcomes.
Patent Information
- Application Number
- CN202520499569.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In traditional orthopedic surgery, it is difficult to precisely control the bending angle of the steel plate, which often requires multiple fine adjustments, affecting the surgical outcome and treatment progress.
A pre-bending device for surgical plates was designed, comprising a fixing component, a driving component, and an adjusting component. By fixing the steel plate, switching the rotation center, and adjusting the spacing of the bending rods, flexible bending control of the steel plate can be achieved.
This allows for precise control of the steel plate bending angle, reducing the need for multiple fine-tuning adjustments during surgery and improving surgical efficiency and treatment outcomes.
Smart Images

Figure CN223862603U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of surgical plate processing technology, and in particular relates to a surgical plate pre-bending device. Background Technology
[0002] In orthopedic surgery, plates are widely used to treat fractures, especially for locating and fixing broken bones. Plates help stabilize the fracture site and promote healing, but different fracture locations require different plate shapes. A fracture is a common medical problem, referring to a complete or partial break in bone. It can occur at any age, but is more common in children and the elderly. Timely and appropriate treatment is crucial when a fracture occurs. Most patients can regain their original function with proper treatment, but some may experience varying degrees of sequelae.
[0003] In traditional orthopedic surgery, the shape of the patient's bones is often deformed to some extent due to injury, requiring the use of steel plates for fixation to prevent further damage. Therefore, the steel plates need to be bent. For the pre-bending equipment for orthopedic steel plates, the bending angle needs to be controlled manually. However, it is difficult to control the precision of the force applied by hand, which often results in the bending angle not meeting the requirements. Multiple fine adjustments are required, which affects the surgical outcome and the patient's treatment progress. Utility Model Content
[0004] The purpose of this invention is to provide a surgical plate pre-bending device with a flexible structure that facilitates control of the bending angle of the plate.
[0005] The surgical plate pre-bending device includes a horizontally arranged base plate, a vertical plate fixed to the top of the base plate, a through groove on the side wall of the vertical plate, a fixing component for fixing the steel plate in the through groove, a fixing plate fixed to the right side wall of the vertical plate, a support plate fixed to the top of the fixing plate, two rotating blocks vertically arranged on the front side wall of the support plate, a bending rod horizontally fixed to the front side wall of each rotating block, an adjusting component for adjusting the distance between the two rotating blocks, and a driving component for driving the rotating blocks to rotate with the two bending rods as the rotation center on the front side wall of the support plate.
[0006] Furthermore, the drive assembly includes a rotating shaft, a support plate with a through hole that connects the front and rear, the rotating shaft being independently installed in the through hole, a drive component for driving the rotating shaft to rotate being installed on the rear side wall of the support plate, a rotating plate being vertically fixed after the front end of the rotating shaft passes through the through hole, at least three insertion rods being fixed at the front end of the rotating plate, the insertion rods being circumferentially distributed about the center of the rotating plate, and insertion holes for inserting the insertion rods being opened on the rear side wall of both rotating blocks.
[0007] Furthermore, a magnetic block for attracting the insertion rod is fixed at the bottom of the rotating block insertion hole.
[0008] Furthermore, the adjustment assembly includes two extension blocks, which are respectively fixed on the side walls of the two rotating blocks. A screw is vertically fixed on the lower extension block, and a through hole is opened on the upper extension block. The screw is vertically inserted into the through hole. Nuts with threaded engagement are fitted on the screws on both the upper and lower sides of the upper extension block, and the upper extension block is clamped between the two nuts.
[0009] Furthermore, a reinforcing plate is vertically fixed to the top of the second rotating block, and a groove is opened upward at the bottom of the first rotating block, with the upper end of the reinforcing plate independently inserted into the groove.
[0010] Furthermore, the fixing component includes a slide rod, and the top of the vertical plate has a through hole that communicates with the through groove. The slide rod is vertically and independently installed in the through hole. A pressure plate is horizontally fixed to the lower end of the slide rod. A spring is fitted on the slide rod between the pressure plate and the upper wall of the through groove. In its natural state, the pressure plate presses the steel plate tightly against the wall of the through groove.
[0011] Furthermore, a rubber pad is horizontally fixed to the bottom of the pressure plate.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, the steel plate is horizontally fixed in the through groove under the action of the fixing component. The part of the steel plate to be bent is positioned between two rotating blocks. Under the action of the driving component, the rotation center is switched according to the bending direction of the steel plate. The steel plate is bent by two bending rods to meet different bending directions of the steel plate. During the bending process of the steel plate, the distance between the bending rods is changed under the action of the adjusting component to adjust the length of the bent part of the steel plate to meet different bending requirements of the steel plate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 for Figure 1 A cross-sectional view of the first rotating block;
[0016] Figure 3 This is a diagram showing the usage status of the bending rod;
[0017] Figure 4 This is a diagram showing the usage status of the bending rod;
[0018] Figure 5 for Figure 1 A magnified rear view of the second rotating block in the middle;
[0019] The components in the diagram are named as follows: 1. Slide rod; 2. Vertical plate; 3. Spring; 4. Pressure plate; 5. Rubber pad; 6. Base plate; 7. Fixing plate; 8. Second rotating block; 9. Extension block; 10. Screw; 11. First rotating block; 12. Bending rod; 13. Support plate; 14. Magnetic block; 15. Insert rod; 16. Rotating plate; 17. Rotating shaft; 18. Insertion hole; 19. Reinforcing plate. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
[0021] Example 1
[0022] This embodiment describes a surgical plate pre-bending device, such as... Figures 1 to 5 As shown, it includes a horizontally arranged base plate 6, and a vertical plate 2 is vertically fixed to the top of the base plate 6. The vertical plate 2 is vertically fixed to the left end of the top of the base plate 6.
[0023] A through groove is provided on the side wall of the vertical plate 2, which is located in the upper part of the vertical plate 2, for the steel plate to pass through.
[0024] A sliding rod 1 is vertically inserted through the top of the vertical plate 2. A through hole communicating with the through groove is vertically opened downwards at the top of the vertical plate 2. The sliding rod 1 is vertically and independently inserted into the through hole and slides up and down along the depth direction of the through hole. A pressure plate 4 is horizontally fixed to the lower end of the sliding rod 1. A spring 3 is fitted on the sliding rod 1 between the pressure plate 4 and the upper wall of the through groove. The upper end of the spring 3 is fixed to the upper wall of the through groove, and the lower end is fixed to the top of the pressure plate 4. In its natural state, the pressure plate 4 presses the steel plate tightly against the wall of the through groove. Under the action of the spring 3, the pressure plate 4 is continuously pushed downwards to press the steel plate. This paragraph as a whole constitutes a fixing component for fixing the steel plate. When the fixing component is in use, the steel plate is placed under the pressure plate 4, and the pressure plate 4 is continuously pushed downwards by the spring 3 to fix the steel plate in the through groove.
[0025] A fixing plate 7 is vertically fixed to the right side wall of the vertical plate 2, the left side wall of the fixing plate 7 is fixed to the right side of the vertical plate 2, and the bottom is fixed to the top of the base plate 6.
[0026] A support plate 13 is vertically fixed to the top of the fixed plate 7, and the bottom of the support plate 13 is fixed to the top of the fixed plate 7.
[0027] Two rotating blocks are vertically arranged on the front side wall of the support plate 13. The two rotating blocks are distributed vertically on the front side of the support plate 13, and the second rotating block 8 is located below the first rotating block 11.
[0028] A bending rod 12 is horizontally fixed on the front side wall of each rotating block, and the rear ends of the two bending rods 12 are respectively fixed on the front side wall of the two rotating blocks.
[0029] An extension block 9 is installed on the side wall of the rotating block. The upper extension block 9 is fixed to the side wall of the first rotating block 11, and the lower extension block 9 is fixed to the side wall of the second rotating block 8. A screw 10 is vertically fixed on the lower extension block 9, and the lower end of the screw 10 is fixed to the lower extension block 9. A through hole is opened on the upper extension block 9, and the screw 10 is vertically inserted into the through hole. The upper end of the screw 10 is inserted into the through hole of the upper extension block 9 and slides up and down along the depth of the through hole. Nuts with threaded engagement are fitted on the screws 10 on both the upper and lower sides of the upper extension block 9. The upper extension block 9 is clamped between the two nuts. By tightening the two nuts, the upper end of the screw 10 is... The distance between the two rotating blocks is fixed on the upper extension block 9. This section constitutes an adjustment component for adjusting the distance between the two rotating blocks. When the adjustment component is in use, to adjust the distance between the two rotating blocks, loosen the nut, and the first rotating block 11 slides up and down along the length of the screw 10, thereby adjusting the distance between the two rotating blocks. After adjustment, tighten the two nuts to fix the upper end of the screw 10 to the upper extension block 9. Of course, the adjustment component can also be provided on both the left and right sides of the rotating block. The two screws 10 can regulate the movement direction of the first rotating block 11 and prevent the first rotating block 11 from making circular motion along the screw 10 when it moves up and down.
[0030] A rotating shaft 17 is horizontally inserted into the support plate 13. The support plate 13 has a through hole that connects the front and rear ends. The rotating shaft 17 is independently inserted into the through hole and rotates freely within it. A driving component for rotating the rotating shaft 17 is installed on the rear side wall of the support plate 13. The driving component's power output end is connected to the rear end of the rotating shaft 17. The driving component is existing technology and generally uses a servo motor or electric motor. The motor drives the rotating plate 16 to rotate, reducing the workload of medical staff. The rotating plate 16 is vertically fixed after the front end of the rotating shaft 17 passes through the through hole. The front end of the rotating shaft 17 is fixed to the rear side wall of the rotating plate 16. At least three insertion rods 15 are fixed to the front end of the rotating plate 16. The insertion rods 15 are circumferentially distributed about the center of the rotating plate 16 and are fixed to the rotating plate 16. On the front sidewall of 6, the rotating blocks are arranged in a circular pattern along the rotating plate 16; each of the two rotating blocks has a socket 18 for inserting the rod 15 on its rear sidewall, and the rear sidewall of each rotating block has a socket 18 facing forward; this section as a whole constitutes a drive assembly that drives the rotating blocks to rotate with the two bent rods 12 as rotation centers. When the drive assembly is in use, the rod 15 on the front sidewall of the rotating plate 16 is inserted into the socket 18 on the rear sidewall of the rotating block, and the rotating plate 16 is driven to rotate through the rotating shaft 17. Under the limiting effect of the socket 18 on the rod 15, the rotating block is driven to rotate. Different rotating blocks can be connected to the rotating plate 16 as needed to achieve the switching of different rotation centers; of course, the drive assembly can also set the rod 15 as a square head with a rectangular cross-section, and the rear sidewall of the rotating block has a slot that matches the square head. When the square head rotates, it drives the rotating block to rotate.
[0031] In this embodiment, the portion of the steel plate to be bent is placed between two rotating blocks, with the left end of the steel plate horizontally inserted into the through groove. The steel plate is then horizontally fixed within the through groove by a fixing assembly. When the steel plate needs to be bent upwards, as... Figure 4 As shown, the drive assembly rotates around the bending rod 12 of the first rotating block 11. The steel plate abuts against the bottom of the bending rod 12 of the first rotating block 11, causing the bending rod 12 on the second rotating block 8 to rotate counterclockwise, bending the right end of the steel plate upwards; when the steel plate needs to be bent downwards, as... Figure 3 As shown, the drive assembly rotates around the bending rod 12 of the second rotating block 8. The steel plate abuts against the top of the bending rod 12 of the second rotating block 8, causing the bending rod 12 on the first rotating block 11 to rotate clockwise, bending the right end of the steel plate downward. By switching the rotation center through the drive assembly, the steel plate is bent by the two bending rods 12 to meet different bending directions of the steel plate. During the bending process, the distance between the two bending rods 12 is adjusted by the adjustment assembly to adjust the length of the bent part of the steel plate, so as to meet the different bending requirements of the steel plate to the greatest extent.
[0032] Example 2
[0033] This embodiment further illustrates the technology, such as Figure 2 As shown, a magnetic block 14 for adsorbing the insertion rod 15 is fixed at the bottom of the hole 18 of the rotating block. The insertion rod 15 is made of a metal material that can be attracted by the magnetic block 14, such as iron. When the insertion rod 15 is inserted into the second rotating block 8, the magnetic block 14 attracts the front end of the insertion rod 15 and fixes the insertion rod 15 in the hole 18 to prevent it from falling off the rotating plate 16 when the rotating block rotates.
[0034] Example 3
[0035] This embodiment further illustrates the technology, such as Figure 1 and Figure 2 As shown, a reinforcing plate 19 is vertically fixed to the top of the second rotating block 8, and a groove is provided at the bottom of the first rotating block 11. The upper end of the reinforcing plate 19 is independently inserted into the groove. When the two bending rods 12 bend the steel plate, the reinforcing plate 19 bears the torque generated when the two rotating blocks rotate, thereby improving the service life of the screw 10.
[0036] Example 4
[0037] This embodiment further illustrates the technology, such as Figure 1 As shown, a rubber pad 5 is horizontally fixed at the bottom of the pressure plate 4. The rubber pad 5 is fixed at the lower end of the pressure plate 4. The rubber pad 5 is used to increase the friction coefficient between the pressure plate 4 and the steel plate surface, so as to play an anti-slip function and improve the fixing effect on the steel plate.
[0038] In this embodiment, the rubber pad 5 can also be fixed on the lower wall of the through groove, and the rubber pads 5 on both sides of the steel plate can clamp the steel plate at the same time, thereby improving the fixing effect of the steel plate.
Claims
1. A surgical plate pre-bending device, comprising a horizontally arranged base plate (6), a vertical plate (2) vertically fixed to the top of the base plate (6), and a through groove communicating with the left and right sides on the side wall of the vertical plate (2), characterized in that: The through groove is provided with a fixing component for fixing the steel plate. A fixing plate (7) is vertically fixed on the right side wall of the vertical plate (2). A support plate (13) is vertically fixed on the top of the fixing plate (7). Two rotating blocks are vertically arranged on the front side wall of the support plate (13). A bending rod (12) is horizontally fixed on the front side wall of each rotating block. An adjustment component for adjusting the distance between the two rotating blocks is provided between the two rotating blocks. A drive component is provided on the front side wall of the support plate (13) to drive the rotating blocks to rotate with the two bending rods (12) as the rotation center.
2. The surgical plate pre-bending device according to claim 1, characterized in that: The drive assembly includes a rotating shaft (17), a support plate (13) with a through hole that connects the front and rear, the rotating shaft (17) being independently installed in the through hole, a drive component for driving the rotating shaft (17) to rotate is installed on the rear side wall of the support plate (13), a rotating plate (16) is vertically fixed after the front end of the rotating shaft (17) passes through the through hole, at least three insertion rods (15) are fixed on the front end of the rotating plate (16), the insertion rods (15) are circumferentially distributed about the center of the rotating plate (16), and insertion holes (18) for inserting the insertion rods (15) are opened on the rear side wall of both rotating blocks.
3. The surgical plate pre-bending device according to claim 2, characterized in that: A magnetic block (14) for adsorbing the insertion rod (15) is fixed at the bottom of the insertion hole (18).
4. The surgical plate pre-bending device according to claim 1, characterized in that: The adjustment assembly includes two extension blocks (9), which are fixed on the side walls of the two rotating blocks respectively. A screw (10) is vertically fixed on the lower extension block (9), and a through hole is opened on the upper extension block (9). The screw (10) is vertically inserted into the through hole. Nuts that are threadedly engaged with the screws (10) on both the upper and lower sides of the upper extension block (9) are fitted on the screws (10). The upper extension block (9) is clamped between the two nuts.
5. The surgical plate pre-bending device according to claim 4, characterized in that: The two rotating blocks are the first rotating block (11) and the second rotating block (8). The top of the second rotating block (8) is vertically fixed with a reinforcing plate (19). The bottom of the first rotating block (11) has an upward groove, and the upper end of the reinforcing plate (19) is independently inserted into the groove.
6. The surgical plate pre-bending device according to claim 1, characterized in that: The fixing component includes a slide rod (1), and a through hole communicating with the through groove is opened vertically downward at the top of the vertical plate (2). The slide rod (1) is vertically and independently installed in the through hole. A pressure plate (4) is horizontally fixed at the lower end of the slide rod (1). A spring (3) is fitted on the slide rod (1) between the pressure plate (4) and the upper wall of the through groove. In the natural state of the spring (3), the pressure plate (4) presses the steel plate tightly against the groove wall of the through groove.
7. The surgical plate pre-bending device according to claim 6, characterized in that: A rubber pad (5) is horizontally fixed to the bottom of the pressure plate (4).