Surgical steel plate pre-bending device

Abstract

The utility model belongs to the field of medical apparatus and instruments, particularly relates to a pre-bending device for a surgical steel plate, and aims to solve the problems that the conventional pre-bending device can only bend the steel plate into one shape and needs to be manually pushed into a processing position, and adopts the following scheme that the pre-bending device comprises a base and an L-shaped plate fixedly mounted at the top of the base, and a hydraulic cylinder is fixedly mounted at the top of the L-shaped plate; two groups of first guide rods are fixedly mounted on the surfaces, close to each other, of the base and the L-shaped plate, vertical plates are slidably connected to the circumferences of the two groups of first guide rods, a same first lead screw is rotatably mounted on the sides, close to each other, of the two vertical plates, and a transverse plate is in threaded connection to the circumference of the first lead screw; a first pressing block and a second pressing block are fixedly mounted on the two sides of the bottom face of the transverse plate respectively, the mounting box is driven by the motor to slide, the positioning block ascends to limit a mold on the top of the mounting box while sliding, and meanwhile risks existing in the manual pushing process are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a surgical steel plate pre-bending device. Background Art

[0002] In orthopedics, fractures are common diseases. When a patient has a fracture, a steel plate needs to be placed on the fracture site for fixation. Since each patient's bones are different, the steel plate needs to be bent when fixing it so that the bent steel plate can better fit the patient's fracture. Current steel plate bending methods usually fix both ends of the steel plate and press it down directly with a pressure block. The steel plate can only be bent into one shape and cannot be bent according to the situation of each patient. They need to fix the steel plate before bending it, and then manually push the steel plate into the processing site after fixation. There are certain risks in this process.

[0003] For this purpose, a surgical plate pre-bending device is proposed. Utility Model Content

[0004] The utility model aims to solve the risk of manual pushing in the prior art and proposes a surgical steel plate pre-bending device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A surgical plate pre-bending device comprises a base and an L-plate fixedly mounted on the top thereof, a hydraulic cylinder fixedly mounted on the top of the L-plate, two groups of first guide rods fixedly mounted on the sides of the base and the L-plate close to each other, vertical plates slidably connected to the circumferences of the two groups of first guide rods, a same first screw rod rotatably mounted on the sides of the two vertical plates close to each other, a horizontal plate threadedly connected to the circumference of the first screw rod, and a first pressing block and a second pressing block fixedly mounted on both sides of the bottom surface of the horizontal plate;

[0007] Two mounting boxes, the mounting boxes are slidably connected to the base, and the same connecting rod is rotatably installed on the side of the two mounting boxes close to each other, and both ends of the connecting rod pass through the mounting boxes and are fixedly installed with a first bevel gear, and the inner wall of the mounting boxes is rotatably installed with a second screw rod, and the other end of the second screw rod is fixedly connected to the second bevel gear, and the second bevel gear is meshed with the first bevel gear, and the circumference of the second screw rod is threadedly connected with a moving plate, and the moving plate is slidably connected to the mounting box, and two positioning blocks are fixedly installed on the top of the moving plate, and a mold is installed on the top of the mounting box.

[0008] In a possible design, a spring is provided on the top of each of the vertical plates, and the other end of the spring is fixedly connected to the L-plate for resetting the vertical plate.

[0009] In a possible design, a handwheel is installed on the side of one of the vertical plates, and the handwheel is fixedly connected to one end of the first screw rod for controlling the movement of the horizontal plate. A second guide rod is slidably installed inside the horizontal plate, and both ends of the second guide rod are fixedly connected to the vertical plate for limiting the position of the horizontal plate.

[0010] In a possible design, a pressure plate is rotatably mounted on the top of the installation box, and the other end of the pressure plate is fastened to the installation box by bolts to fix the mold on the top of the installation box.

[0011] In a possible design, a spur gear is fixedly mounted on the circumference of the connecting rod, a rack is fixedly mounted on the surface of the base, and the spur gear meshes with the rack to move the installation box.

[0012] In a possible design, a third bevel gear is rotatably mounted on the other side of one of the mounting boxes, and a motor is fixedly mounted on the outer side of one of the mounting boxes, and the output shaft of the motor passes through the mounting box and is fixedly connected to the third bevel gear.

[0013] In the present application, when it is necessary to bend the steel plate, take out the bolts on the top of the pressure plate, rotate the pressure plate to form a larger tilt angle, place the mold on the top of the installation box, lower the pressure plate, and thread the pressure plate and the installation box through the bolts to fix the mold. After fixing, place the steel plate on the mold, start the motor, click to drive the third bevel gear to rotate, the third bevel gear meshes with the second bevel gear, and drives the second screw rod to rotate. The second bevel gear at the bottom of the second screw rod meshes with the first bevel gear, and the second screw rods on both sides rotate synchronously, driving the moving block of the second screw rod circumference to rise. During the rise, the spur gear installed on the top of the connecting rod circumference meshes with the rack on the surface of the base, and the installation is made through meshing. The box is moved to the processing position. When it moves to the processing position, the positioning block on the top of the movable plate is installed in the positioning hole at the bottom of the mold through the through-hole card on the top of the mounting box to limit the mold. At this time, the hydraulic cylinder operates to push the cross plate downward until the second pressure block at the bottom of the cross plate completes the bending of the steel plate. The hydraulic cylinder is retracted, and the cross plate is reset by the spring at the top. The pressure block can also be adjusted by turning the handwheel on the side of the vertical plate. The handwheel drives the first screw rod to rotate, and the cross plate around the first screw rod moves. When the first pressure block at the bottom of the cross plate moves to the processing position, it stops rotating, and the hydraulic cylinder operates to drive the first pressure block to bend the steel bar. After bending, the hydraulic cylinder is retracted, and the vertical plate is reset by the spring.

[0014] Beneficial effects:

[0015] In the utility model, a surgical steel plate pre-bending device is described, wherein a motor drives the third bevel gear to rotate and mesh with the second bevel gear, the second bevel gear meshes with the first bevel gear, the spur gear on the circumference of the connecting rod meshes with the rack on the base, so that the installation box moves toward the processing position, and at the same time, the second screw rods on both sides rotate synchronously, and the moving plate on the circumference of the second screw rod brings the positioning block to move upward to limit the mold on the top of the installation box, so that the installation box can fix and limit the mold while moving toward the processing position, eliminating the risk of manual pushing in the process;

[0016] In the utility model, a surgical steel plate pre-bending device is described, which adjusts the position of the horizontal plate by turning a hand wheel, and can select pressure blocks of different sizes to bend the steel plate according to different situations. After bending, it is reset by the spring on the top of the vertical plate, and no manual reset is required, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the main body of a surgical plate pre-bending device proposed by the utility model;

[0018] Figure 2 It is a two-dimensional structural schematic diagram of the main body of a surgical plate pre-bending device proposed by the utility model;

[0019] Figure 3 It is a partial three-dimensional structural schematic diagram of a mounting box of a surgical plate pre-bending device proposed by the utility model;

[0020] Figure 4 This is a three-dimensional structural schematic diagram of a mounting box body of a surgical plate pre-bending device proposed in the utility model.

[0021] In the figure: 1. base; 2. hand wheel; 3. vertical plate; 4. spring; 5. first guide rod; 6. L plate; 7. hydraulic cylinder; 8. first screw rod; 9. second guide rod; 10. cross plate; 11. first pressure block; 12. second pressure block; 13. mounting box; 14. first bevel gear; 15. second bevel gear; 16. third bevel gear; 17. motor; 18. second screw rod; 19. moving plate; 20. positioning block; 21. connecting rod; 22. spur gear; 23. pressure plate; 24. rack; 25. mold. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1

[0024] Reference Figure 1-Figure 4A pre-bending device comprises: a base 1 and an L-plate 6 fixedly mounted on the top thereof, a hydraulic cylinder 7 fixedly mounted on the top of the L-plate 6, two groups of first guide rods 5 fixedly mounted on the sides of the base 1 and the L-plate 6 close to each other, the circumferences of the two groups of first guide rods 5 are slidably connected with vertical plates 3, the sides of the two vertical plates 3 close to each other are rotatably mounted with the same first screw rod 8, the circumference of the first screw rod 8 is threadedly connected with a horizontal plate 10, and the bottom surfaces of the horizontal plate 10 are respectively fixedly mounted with first pressing blocks 11 and second pressing blocks 12;

[0025] It also includes two installation boxes 13, which are slidably connected to the base 1, and the same connecting rod 21 is rotatably installed on the side where the two installation boxes 13 are close to each other. Both ends of the connecting rod 21 pass through the installation boxes 13 and are fixedly installed with the first bevel gear 14. The inner wall of the installation box 13 is rotatably installed with a second screw rod 18, and the other end of the second screw rod 18 is fixedly connected with a second bevel gear 15, and the second bevel gear 15 is meshed with the first bevel gear 14. The circumference of the second screw rod 18 is threadedly connected with a moving plate 19, and the moving plate 19 is slidably connected to the installation box 13. Two positioning blocks 20 are fixedly installed on the top of the moving plate 19, and a mold 25 is installed on the top of the fixed installation box 13.

[0026] In this embodiment, the first pressing block 11 and the second pressing block 12 are fixedly installed on both sides of the bottom of the horizontal plate 10, and the steel plate can be bent to different degrees according to the conditions of different patients. The third bevel gear 16 is driven by the motor 17 to engage with the second bevel gear 15. The first bevel gear 14 is fixedly connected to the two ends of the connecting rod 21, and the second bevel gear 15 is engaged with the first bevel gear 14, so that the second screw rods 18 on both sides can rotate synchronously, so that the moving plate 19 on the circumference of the second screw rod 18 drives the positioning block 20 to limit the mold 25 on the top of the installation box 13.

[0027] Reference Figure 1 A spring 4 is provided on the top of the vertical plate 3, and the other end of the spring 4 is fixedly connected to the L plate 6 for resetting the vertical plate 3.

[0028] In this embodiment, both ends of the spring 4 are fixedly connected to the vertical plate 3 and the L plate 6 respectively. When the hydraulic cylinder 7 stops running, the spring 4 drives the vertical plate 3 to reset, and no manual reset is required, which greatly saves manpower.

[0029] Reference Figure 1 A handwheel 2 is installed on the side of one of the vertical plates 3, and the handwheel 2 is fixedly connected to one end of the first screw rod 8 for controlling the movement of the horizontal plate 10. A second guide rod 9 is slidably installed inside the horizontal plate 10, and both ends of the second guide rod 9 are fixedly connected to the vertical plates 3 for limiting the horizontal plate 10.

[0030] In this embodiment, the handwheel 2 passes through the vertical plate 3 and is fixedly connected to one end of the first screw rod 8. The first screw rod 8 is driven to rotate by rotating the handwheel 2, and the cross plate 10 around the screw rod 8 moves. The first pressure block 11 and the second pressure block 12 can be replaced at any time through the handwheel 3, which solves the problem that the steel plate can only be bent into one shape.

[0031] Reference Figure 1-Figure 4 A spur gear 22 is fixedly installed on the circumference of the connecting rod 21, and a rack 24 is fixedly installed on the surface of the base 1. The spur gear 22 is meshed with the rack 24 to move the installation box 13.

[0032] In this embodiment, the spur gear 22 on the circumference of the connecting rod 21 meshes with the rack 24 on the surface of the base 1. The connecting rod 21 rotates to engage the first bevel gear 14 with the second bevel gear 15, and the second screws 18 on both sides move synchronously, so that the mounting box 13 can fix and limit the mold 25 on its top while moving, which greatly saves workers' time.

[0033] Reference Figure 3 A third bevel gear 16 is rotatably mounted on the other side of one of the mounting boxes 13 , and a motor 17 is fixedly mounted on the outer side of one of the mounting boxes 13 . The output shaft of the motor 17 passes through the mounting box 13 and is fixedly connected to the third bevel gear 16 .

[0034] In this embodiment, the third bevel gear 16 is driven by the motor 17 to engage with the second bevel gear 15, the second bevel gear 15 is engaged with the first bevel gear 14, and the spur gear 22 on the circumference of the connecting rod 21 is engaged with the rack 24 to drive the device to move without manual push, thus avoiding the risks existing in the manual push process.

[0035] The present application can be used for pre-bending surgical plates, and can also be used in other fields applicable to the present application.

[0036] Example 2

[0037] refer to Figure 4 , improved on the basis of Example 1: a surgical steel plate pre-bending device, a pressure plate 23 is rotatably installed on the top of the installation box 13, and the other end of the pressure plate 23 is fastened to the installation box 13 by bolts, which is used to limit the mold 25 on the top of the installation box 13.

[0038] In this embodiment, the bolts on the top of the pressing plate 23 are taken out, the pressing plate 23 is rotated to form an inclined angle, the mold 25 is placed on the top of the mounting box 13, the pressing plate 23 is lowered to fit the surface of the mold 25, and the mold 25 is limited by inserting bolts. The cooperation between the pressing plate 23 and the positioning block 20 prevents the mold 25 from falling during the processing.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surgical plate pre-bending device, comprising a base (1) and an L-plate (6) fixedly mounted on the top thereof, characterized in that: A hydraulic cylinder (7) is fixedly installed on the top of the L-plate (6); two groups of first guide rods (5) are fixedly installed on the side where the base (1) and the L-plate (6) are close to each other; the circumferences of the two groups of first guide rods (5) are slidably connected to the vertical plates (3); the same first screw rod (8) is rotatably installed on the side where the two vertical plates (3) are close to each other; the circumference of the first screw rod (8) is threadedly connected to the horizontal plate (10); and the first pressure block (11) and the second pressure block (12) are fixedly installed on both sides of the bottom surface of the horizontal plate (10); Two installation boxes (13), the installation boxes (13) are slidably connected to the base (1), and the same connecting rod (21) is rotatably installed on the side of the two installation boxes (13) close to each other, and both ends of the connecting rod (21) pass through the installation boxes (13) and are fixedly installed with a first bevel gear (14), and the inner wall of the installation box (13) is rotatably installed with a second screw rod (18), and the other end of the second screw rod (18) is fixedly connected with a second bevel gear (15), and the second bevel gear (15) is meshed with the first bevel gear (14), and the circumference of the second screw rod (18) is threadedly connected with a moving plate (19), and the moving plate (19) is slidably connected to the installation box (13), and two positioning blocks (20) are fixedly installed on the top of the moving plate (19), and a mold (25) is installed on the top of the installation box (13).

2. A surgical plate pre-bending device according to claim 1, characterized in that: A spring (4) is provided on the top of each of the vertical plates (3); the other end of the spring (4) is fixedly connected to the L plate (6) for resetting the vertical plate (3).

3. The surgical plate pre-bending device according to claim 1, characterized in that: A hand wheel (2) is installed on the side of one of the vertical plates (3), and the hand wheel (2) is fixedly connected to one end of the first screw rod (8) for controlling the movement of the horizontal plate (10). A second guide rod (9) is slidably installed inside the horizontal plate (10), and both ends of the second guide rod (9) are fixedly connected to the vertical plates (3) for limiting the position of the horizontal plate (10).

4. The surgical plate pre-bending device according to claim 1, characterized in that: A pressing plate (23) is rotatably mounted on the top of the installation box (13), and the other end of the pressing plate (23) is fastened to the installation box (13) by bolts to fix the mold (25) on the top of the installation box (13).

5. The surgical plate pre-bending device according to claim 1, characterized in that: A spur gear (22) is fixedly mounted on the circumference of the connecting rod (21), a rack (24) is fixedly mounted on the surface of the base (1), and the spur gear (22) is meshed with the rack (24) to move the installation box (13).

6. The surgical plate pre-bending device according to claim 1, characterized in that: A third bevel gear (16) is rotatably mounted on the other side of one of the installation boxes (13), and a motor (17) is fixedly mounted on the outside of one of the installation boxes (13), wherein the output shaft of the motor (17) passes through the installation box (13) and is fixedly connected to the third bevel gear (16).

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