Linear cutting clamp for four-side osteotomy plate

Abstract

The invention relates to the technical field of clamps, and discloses a four-side osteotomy plate linear cutting clamp which comprises a base, a rotating mechanism is installed on the outer side of the base, a supporting plate is arranged on the outer side of the rotating mechanism, a window hole is formed in the supporting plate, and a positioning mechanism and a calibration mechanism are arranged at the top of the supporting plate. And the rotating mechanism comprises a supporting seat, the outer side of the supporting seat is fixedly connected to the outer side of the base, a first motor is installed at the top of the supporting seat, the output end of the first motor is fixedly connected with a rotating shaft, and the outer side of the rotating shaft is fixedly connected with the inner side of a supporting plate. The osteotomy plate can be integrally overturned to a required angle through driving operation of the motor, so that when grooves with different inclination angles are machined on the osteotomy plate on a wire cutting machine, the osteotomy plate does not need to be disassembled and adjusted for many times, the machining auxiliary time is shortened, the production efficiency is effectively improved, and the batch production requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of fixtures, in particular to a four-sided osteotomy plate linear cutting fixture. Background Art

[0002] In the medical field, four-sided osteotomy plates are critical medical devices, and their machining accuracy directly impacts postoperative treatment outcomes. With the increasing demand for personalized and precise osteotomy plates in orthopedic surgeries, wire cutting machines are required to produce grooves with varying angles to accommodate the complex human anatomy. This high-precision, diverse machining requirement poses significant challenges to the plate's fixation, angle adjustment, and calibration.

[0003] Currently, common osteotomy plate processing fixtures on the market primarily utilize a simple clamping structure, manually securing the plate with bolts and relying on manual angle adjustment. The structural principle utilizes a fixed clamp block in conjunction with bolts to secure the plate to a base. The operator then manually rotates the fixture or plate based on experience to achieve different angles. Level calibration often relies on rough manual adjustments using tools such as spirit levels, lacking precise calibration devices.

[0004] However, in actual processing scenarios, this type of traditional fixture exposes many problems. Since it relies on manual frequent disassembly and adjustment of the osteotomy plate angle, it not only consumes a lot of time, resulting in low processing efficiency, but also makes it difficult to meet the needs of mass production; the simple clamping method cannot provide a stable fixation effect, and the osteotomy plate is prone to shaking during the cutting process, resulting in a decrease in processing accuracy, affecting the performance and surgical effect of the osteotomy plate; at the same time, there is a lack of reliable anti-falling and precise calibration mechanisms. When a groove with a larger inclination angle needs to be processed, the osteotomy plate is at risk of falling off, and the horizontality is difficult to ensure, which increases the scrap rate and processing costs. Therefore, the present invention provides a four-sided osteotomy plate wire cutting fixture to solve the shortcomings of the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a four-sided osteotomy plate wire cutting fixture to solve the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A four-sided osteotomy plate linear cutting fixture comprises a base, a rotating mechanism is installed on the outside of the base, a support plate is provided on the outside of the rotating mechanism, a window hole is opened inside the support plate, a positioning mechanism and a calibration mechanism are provided on the top of the support plate, and an anti-falling mechanism is provided on the top of the calibration mechanism.

[0007] Preferably, the rotating mechanism includes a support seat, the outer side of the support seat is fixedly connected to the outer side of the base, a motor 1 is installed on the top of the support seat, the output end of the motor 1 is fixedly connected to a rotating shaft, and the outer side of the rotating shaft is fixedly connected to the inner side of the support plate.

[0008] Preferably, the positioning mechanism includes a fixed seat and an L-shaped seat, the bottom of the fixed seat is fixedly connected to the top of the supporting plate, and the fixed seat is located at a position corresponding to the end of the rotating shaft.

[0009] Preferably, the bottom of the L-shaped seat is fixedly connected to the top of the support plate, and the L-shaped seat is located on the side of the rotating shaft. The interior of the fixed seat and the L-shaped seat are both threadedly connected with a stud, one end of the stud is fixedly connected to a handwheel, and the other end of the stud is provided with an anti-slip clamp.

[0010] Preferably, the calibration mechanism includes a mounting seat, the bottom of which is fixedly connected to the top of the support plate, a second motor is installed on the outer side of the mounting seat, the output end of the second motor is fixedly connected to a rotating rod one, and the outer side of the rotating rod one is rotatably connected to the inner side of the mounting seat.

[0011] Preferably, two assembly plates are fixedly connected to one side of the mounting seat, and the two assembly plates are internally rotatably connected to a second rotating rod, and one end of the second rotating rod and the first rotating rod are fixedly connected to a cylindrical gear, and the two cylindrical gears are meshed.

[0012] Preferably, a zeroing roller is fixedly connected to the outer side of the rotating rod 2, and two groups of anti-slip strips are provided on the outer side of the zeroing roller. The number of anti-slip strips in each group is multiple, and the multiple anti-slip strips are arranged in a circular array on the outer periphery of the zeroing roller.

[0013] Preferably, the anti-falling mechanism includes an L-shaped frame, one end of the L-shaped frame is fixedly connected to the top of the mounting seat, the bottom of the L-shaped frame is rotatably connected to a rotating column, and the bottom end of the rotating column is rotatably connected to the top of the mounting seat.

[0014] Preferably, the outside of the rotating column is movably connected to a pressure plate, and the outside of the rotating column is sleeved with a spring, one end of the spring is connected to the top of the pressure plate, and the other end of the spring is fixedly connected to the bottom of the L-shaped frame.

[0015] Preferably, an insertion rod is fixedly connected to the bottom of the pressing plate, a limiting hole is provided on the top of the mounting seat, and one end of the insertion rod is inserted into the limiting hole.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The clamp of the present invention significantly improves the processing efficiency of four-sided osteotomy plates. The traditional method requires frequent removal and readjustment of the position of the instrument. With this clamp, the osteotomy plate can be flipped to the desired angle through motor-driven operation. When processing different tilt angle grooves on the osteotomy plate on the wire cutting machine, there is no need for multiple disassembly and adjustment, which reduces processing auxiliary time, effectively improves production efficiency, and meets the needs of mass production.

[0017] 2. This invention prevents the osteotomy plate from shaking during processing through a stable support surface and a comprehensive clamping method. It also accurately calibrates the horizontality of the osteotomy plate to prevent errors in the cutting groove angle caused by horizontal deviation. By focusing on both fixation and calibration, the high precision of the four-sided osteotomy plate during processing is ensured, ensuring that the processed osteotomy plate meets the high standards required for medical devices.

[0018] 3. When the osteotomy plate is flipped at a large angle and the original clamping force is insufficient, the anti-falling mechanism of the clamp of the present invention can play a role in time. Manual operation causes the pressure plate to press the osteotomy plate under the elastic force of the spring, and the insertion rod is inserted into the limit hole to prevent the pressure plate from deflecting. The double protection measures effectively prevent the osteotomy plate from falling off during processing, ensure processing safety, and avoid equipment damage or safety accidents caused by the osteotomy plate falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective view of the present invention; Figure 2 It is a rear perspective view of the present invention; Figure 3 A bottom perspective view of the present invention; Figure 4 It is a structural schematic diagram of the positioning mechanism of the present invention; Figure 5 for Figure 4 A magnified view of middle A; Figure 6 It is a structural schematic diagram of the calibration mechanism of the present invention; Figure 7 It is a structural schematic diagram of the anti-falling mechanism of the present invention; Figure 8 A top view of the present invention; Figure 9 It is a front view of the present invention; Figure 10 It is a side view of the present invention.

[0020] Among them, 1. base; 2. rotating mechanism; 201. supporting seat; 202. motor 1; 203. rotating shaft; 3. supporting plate; 4. window hole; 5. positioning mechanism; 501. fixing seat; 502. L-shaped seat; 503. stud; 504. handwheel; 505. anti-slip clamp; 6. calibration mechanism; 601. mounting seat; 602. motor 2; 603. rotating rod 1; 604. assembly plate; 605. rotating rod 2; 606. cylindrical gear; 607. zeroing roller; 608. anti-slip strip; 7. anti-falling mechanism; 701. L-shaped frame; 702. rotating column; 703. spring; 704. pressure plate; 705. plug rod; 706. limiting hole. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 10 , the present invention is described in further detail.

[0022] The present invention provides a four-sided osteotomy plate wire cutting fixture, including a base 1, which serves as the basic supporting structure of the entire fixture and provides an installation and stable platform for other components. A rotating mechanism 2 is installed on the outer side of the base 1, and the rotating mechanism 2 can drive the components installed above it to rotate, thereby realizing adjustment of different angles of the osteotomy plate to meet the requirements of wire cutting processing of grooves with different inclination angles.

[0023] A support plate 3 is provided on the outside of the rotating mechanism 2. The support plate 3 is used to carry and fix the four-sided osteotomy plate and other instruments to be processed. A window hole 4 is opened inside the support plate. The design of the window hole 4 helps to facilitate the passage of tools such as molybdenum wire for wire cutting during the processing process to avoid obstruction to the processing.

[0024] The top of the support plate 3 is equipped with a positioning mechanism 5 and a calibration mechanism 6. The positioning mechanism 5 precisely fixes the osteotomy plate in place, preventing it from shifting during machining and affecting accuracy. The calibration mechanism 6 calibrates the plate's levelness and other parameters to ensure machining accuracy. A top-mounted anti-drop mechanism 7 acts as a safety guard during machining, preventing the plate from falling due to various reasons and ensuring safety and stability. Rotating mechanism 2 includes a support base 201, the outer side of which is fixedly connected to the outer side of base 1, providing support and a mounting base for the other components of rotating mechanism 2. Motor 1 202 is mounted on top of support base 201. Motor 1 202 serves as the power source for rotating mechanism 2, with its output end fixedly connected to rotating shaft 203. When activated, motor 1 202 converts electrical energy into mechanical energy, driving rotating shaft 203 to rotate.

[0025] The outer side of the rotating shaft 203 is fixedly connected to the inner side of the support plate 3. Thus, when the rotating shaft 203 rotates, it can drive the support plate 3 and the osteotomy plate and other instruments placed on it to rotate together. In the wire cutting process of a four-sided osteotomy plate, four grooves with different tilt angles need to be machined. By starting the motor 1 202, the support plate 3 can be easily rotated to the desired angle, eliminating the need for frequent readjustment of the instrument position, greatly improving processing efficiency. The positioning mechanism 5 includes a fixed seat 501 and an L-shaped seat 502. The bottom of the fixed seat 501 is fixedly connected to the top of the support plate 3, and the fixed seat 501 is located at the corresponding position of the end of the rotating shaft 203. The bottom of the L-shaped seat 502 is also fixedly connected to the top of the support plate 3, and the L-shaped seat 502 is located on the side of the rotating shaft 203.

[0026] The fixing base 501 and the L-shaped base 502 work together to support and initially position the osteotomy plate from different directions. A stud 503 is threadedly connected to the interior of each fixing base 501 and the L-shaped base 502. One end of the stud 503 is fixedly connected to a handwheel 504. By turning the handwheel 504, the stud 503 can be linearly moved forward or backward using the principle of threaded transmission.

[0027] The other end of the stud 503 is provided with an anti-slip clamp 505. When the hand wheel 504 is rotated to make the stud 503 drive the anti-slip clamp 505 to move forward, the anti-slip clamp 505 can tightly clamp the osteotomy plate and other instruments.

[0028] In actual operation, the bottom of the four-sided osteotomy plate and other instruments is placed on the lifting surface of the mounting seat 601 and the L-shaped seat 502, and then the handwheel 504 on the fixing seat 501 and the L-shaped seat 502 is rotated respectively to make the anti-slip clamp 505 gradually approach and clamp the instrument to ensure the stability of the instrument during the processing and avoid affecting the accuracy of wire cutting processing due to shaking or displacement.

[0029] Calibration mechanism 6 includes a mounting base 601, the bottom of which is fixedly connected to the top of support plate 3, providing a mounting base for the other components of calibration mechanism 6. Motor 2 602 is mounted outside mounting base 601. Motor 2 602 serves as the power source for calibration mechanism 6. Its output end is fixedly connected to rotating rod 1 603. When motor 2 602 is activated, it drives rotating rod 1 603 to rotate.

[0030] The outer side of rotating rod 1 603 is rotatably connected to the inner side of mounting base 601, ensuring smooth rotation of rotating rod 1 603. Two assembly plates 604 are fixedly connected to one side of mounting base 601. These two assembly plates 604 serve to mount and support rotating rod 2 605. Rotating rod 2 605 is rotatably connected to the inner sides of the two assembly plates 604. Cylindrical gears 606 are fixedly connected to one end of rotating rod 2 605 and rotating rod 1 603. These two cylindrical gears 606 mesh with each other. When motor 2 602 drives rotating rod 1 603 to rotate, the cylindrical gear 606 at one end of rotating rod 1 603 rotates accordingly. Because the two cylindrical gears 606 mesh, they also drive the cylindrical gear 606 at one end of rotating rod 2 605 to rotate, thereby causing rotating rod 2 605 to rotate. A zeroing roller 607 is fixedly connected to the outer side of rotating rod 2 605. Rotating rod 2 605 also drives the zeroing roller 607 to rotate.

[0031] Two groups of anti-slip strips 608 are provided on the outside of the zeroing roller 607. Each group of anti-slip strips 608 has multiple anti-slip strips. Multiple anti-slip strips 608 are arranged in a circular array on the periphery of the zeroing roller 607. The anti-slip strips 608 can increase the friction between the zeroing roller 607 and instruments such as osteotomy plates.

[0032] When it is necessary to calibrate the level of an instrument such as an osteotomy plate, start motor 2 602, which drives the rotating rod 1 603 to rotate. Through the meshing transmission of two cylindrical gears 606, the rotating rod 2 605 drives the zeroing roller 607 to rotate. The anti-slip strip 608 can increase the friction while slightly lifting the instrument to a certain angle. In this way, the level of the instrument can be calibrated to ensure the accuracy of wire cutting processing. The anti-fall mechanism 7 includes an L-shaped frame 701, one end of which is fixedly connected to the top of the mounting base 601, providing mounting support for the other components of the anti-fall mechanism 7. The bottom of the L-shaped frame 701 is rotatably connected to a rotating column 702, and the bottom end of the rotating column 702 is rotatably connected to the top of the mounting base 601, allowing the rotating column 702 to rotate between the L-shaped frame 701 and the mounting base 601.

[0033] A pressure plate 704 is movably connected to the outside of the rotating column 702, and the pressure plate 704 can rotate a certain angle around the rotating column 702. A spring 703 is sleeved on the outside of the rotating column 702. One end of the spring 703 is connected to the top of the pressure plate 704, and the other end is fixedly connected to the bottom of the L-shaped frame 701. The spring 703 provides a downward elastic force for the pressure plate 704.

[0034] The bottom of the pressure plate 704 is fixedly connected to an insertion rod 705, and a limit hole 706 is provided at the top of the mounting base 601. When an instrument such as an osteotomy plate is flipped to a certain angle, if the clamping force of the calibration mechanism 6 on one side of the instrument is insufficient, the pressure plate 704 can be rotated so that one end moves to the outside of the instrument. Under the elastic force of the spring 703, the pressure plate 704 will press the instrument downward, and the insertion rod 705 will be inserted into the inside of the limit hole 706. This can prevent the pressure plate 704 from deflecting, ensure that the pressure plate 704 continuously and stably presses the instrument to prevent it from falling off, and ensure the safety and stability of the processing process.

[0035] Specifically, this fixture is particularly useful in the processing of four-sided osteotomy plates, which require four grooves with different tilt angles to be machined on a wire cutting machine. First, the bottom of the osteotomy plate is placed steadily on the supporting surfaces of the mounting base 601 and the L-shaped base 502. These two components form a stable support surface, laying the foundation for subsequent precise positioning.

[0036] Next, hold the handwheel 504 on the fixing seat 501 and the L-shaped seat 502 with both hands respectively, and slowly rotate them in the clockwise direction. Through the principle of thread transmission, the stud 503 will drive the anti-slip clamp 505 toward the osteotomy plate. As the anti-slip clamp 505 fits tightly against the osteotomy plate, the instrument is firmly clamped. This all-round clamping method can effectively avoid any slight shaking of the osteotomy plate during the processing process, ensuring processing accuracy.

[0037] Subsequently, motor 1 202 is started, and motor 1 202 converts electrical energy into mechanical energy, driving the rotating shaft 203 to start rotating. Since the rotating shaft 203 is fixedly connected to the inner side of the support plate 3, the support plate 3 drives the osteotomy plate to slowly flip over as a whole. According to processing requirements, the osteotomy plate can be easily adjusted to the required angle without the need to frequently remove and readjust the position of the instrument as in the traditional way, which greatly improves the processing efficiency.

[0038] When the osteotomy plate is at a specific machining angle, if its levelness deviates, motor 2 602 is activated, driving rotating rod 1 603. This power is transmitted to rotating rod 2 605 via two intermeshing cylindrical gears 606, which in turn rotates zeroing roller 607. Multiple anti-slip strips 608 arranged in a circular array around the periphery of zeroing roller 607 contact the osteotomy plate, increasing friction and slightly lifting one side of the plate through the force generated by rotation, achieving levelness calibration and ensuring the precise angle of the cutting groove.

[0039] If the osteotomy plate is flipped at a large angle and the clamping force of the calibration mechanism 6 on one side is insufficient, the pressure plate 704 can be manually rotated so that one end is rotated to the outside of the osteotomy plate. At this time, under the action of the strong elastic force of the spring 703, the pressure plate 704 quickly presses down the osteotomy plate. At the same time, the insertion rod 705 at the bottom of the pressure plate 704 is accurately inserted into the limiting hole 706 at the top of the mounting seat 601. The double protection makes the pressure plate 704 stable and does not deviate, providing reliable anti-falling protection for the osteotomy plate, ensuring that the entire processing process is carried out safely and stably.

[0040] Working principle: During the processing of a medical device such as a four-sided osteotomy plate, four grooves with different inclination angles need to be processed on a wire cutting machine. Therefore, it is placed on this fixture. First, the bottom of the device is placed on the supporting surface of the mounting seat 601 and the L-shaped seat 502. By turning the two hand wheels 504, the stud 503 can drive the anti-slip clamping block 505 to move forward, thereby clamping the device. Then, the motor 202 is started to drive the rotating shaft 203 to rotate, so that the support plate 3 can drive the entire device to flip over. In this way, different grooves can be easily opened without frequent adjustments to the device. When the level of the tool needs to be calibrated, the second motor 602 can be started to drive the first rotating rod 603. In this way, the two cylindrical gears 606 rotate simultaneously, so that the second rotating rod 605 drives the zero-calibration roller 607 to rotate. The anti-slip strip 608 is used to increase the friction and allow the tool to be lifted to a certain angle, thereby achieving the calibration function. In addition, when the device is flipped over a certain angle, the clamping force of the calibration mechanism 6 on one side of the device is not enough, and the pressure plate 704 can be rotated so that one end is moved to the outside of the device. Under the elastic force of the spring 703, the pressure plate 704 can press the device, and the insertion rod 705 will be inserted into the inside of the limiting hole 706, so that the pressure plate 704 will not be offset.

[0041] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A four-sided osteotomy plate wire cutting fixture, characterized in that: The invention comprises a base (1), a rotating mechanism (2) is installed on the outer side of the base (1), a supporting plate (3) is provided on the outer side of the rotating mechanism (2), a window hole (4) is provided inside the supporting plate (3), a positioning mechanism (5) and a calibration mechanism (6) are provided on the top of the supporting plate (3), and an anti-falling mechanism (7) is provided on the top of the calibration mechanism (6).

2. A four-sided osteotomy plate wire cutting fixture according to claim 1, characterized in that: The rotating mechanism (2) comprises a support seat (201), the outer side of the support seat (201) is fixedly connected to the outer side of the base (1), a motor 1 (202) is mounted on the top of the support seat (201), an output end of the motor 1 (202) is fixedly connected to a rotating shaft (203), and the outer side of the rotating shaft (203) is fixedly connected to the inner side of the support plate (3).

3. The four-sided osteotomy plate wire cutting fixture according to claim 2, characterized in that: The positioning mechanism (5) comprises a fixed seat (501) and an L-shaped seat (502), the bottom of the fixed seat (501) is fixedly connected to the top of the support plate (3), and the fixed seat (501) is located at a position corresponding to the end of the rotating shaft (203).

4. The four-sided osteotomy plate wire cutting fixture according to claim 3, characterized in that: The bottom of the L-shaped seat (502) is fixedly connected to the top of the support plate (3), and the L-shaped seat (502) is located on the side of the rotating shaft (203). The interiors of the fixed seat (501) and the L-shaped seat (502) are both threadedly connected with a stud (503), one end of the stud (503) is fixedly connected to a handwheel (504), and the other end of the stud (503) is provided with an anti-slip clamp (505).

5. The four-sided osteotomy plate wire cutting fixture according to claim 1, characterized in that: The calibration mechanism (6) includes a mounting seat (601), the bottom of the mounting seat (601) is fixedly connected to the top of the support plate (3), a second motor (602) is installed on the outer side of the mounting seat (601), an output end of the second motor (602) is fixedly connected to a first rotating rod (603), and the outer side of the first rotating rod (603) is rotatably connected to the inner side of the mounting seat (601).

6. The four-sided osteotomy plate wire cutting fixture according to claim 5, characterized in that: One side of the mounting seat (601) is fixedly connected to two assembly plates (604), and the interiors of the two assembly plates (604) are rotatably connected to a second rotating rod (605). One end of the second rotating rod (605) and the first rotating rod (603) are both fixedly connected to a cylindrical gear (606), and the two cylindrical gears (606) are meshed.

7. The four-sided osteotomy plate wire cutting fixture according to claim 6, characterized in that: The outer side of the second rotating rod (605) is fixedly connected to a zeroing roller (607), and two groups of anti-slip strips (608) are provided on the outer side of the zeroing roller (607). The number of the anti-slip strips (608) in each group is multiple, and the multiple anti-slip strips (608) are arranged in a circular array on the outer periphery of the zeroing roller (607).

8. The four-sided osteotomy plate wire cutting fixture according to claim 7, characterized in that: The anti-falling mechanism (7) comprises an L-shaped frame (701), one end of the L-shaped frame (701) is fixedly connected to the top of the mounting seat (601), the bottom of the L-shaped frame (701) is rotatably connected to a rotating column (702), and the bottom end of the rotating column (702) is rotatably connected to the top of the mounting seat (601).

9. The four-sided osteotomy plate wire cutting fixture according to claim 8, characterized in that: The outside of the rotating column (702) is movably connected to a pressure plate (704), and the outside of the rotating column (702) is provided with a spring (703), one end of the spring (703) is connected to the top of the pressure plate (704), and the other end of the spring (703) is fixedly connected to the bottom of the L-shaped frame (701).

10. The four-sided osteotomy plate wire cutting fixture according to claim 9, characterized in that: The bottom of the pressing plate (704) is fixedly connected to an insertion rod (705), the top of the mounting seat (601) is provided with a limiting hole (706), and one end of the insertion rod (705) is inserted into the limiting hole (706).

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