A four-sided osteotomy plate wire cutting fixture

Abstract

The present application relates to the technical field of clamps, and discloses a four-surface osteotomy plate wire 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 inside of the supporting plate, a positioning mechanism and a calibration mechanism are arranged on the top of the supporting plate, an anti-falling mechanism is arranged on the top of the calibration mechanism, 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 motor one is installed on the top of the supporting seat, a rotating shaft is fixedly connected to the output end of the motor one, and the outer side of the rotating shaft is fixedly connected to the inner side of the supporting plate. The osteotomy plate can be driven to overturn to the required angle by motor driving operation, so that the osteotomy plate does not need to be disassembled and adjusted for multiple times when being machined on a wire cutting machine to process grooves with different inclination angles, the auxiliary machining time is reduced, the production efficiency is effectively improved, and the batch production demand is met.

Description

Technical Field

[0001] This invention relates to the field of clamping technology, and in particular to a four-sided osteotomy plate wire cutting clamp. Background Technology

[0002] In the medical field, four-sided osteotomy plates are crucial medical devices, and their processing precision directly affects postoperative treatment outcomes. As orthopedic surgeries increasingly demand personalized and precise osteotomy plates, it is necessary to machine grooves with various tilt angles on wire cutting machines to adapt to the complex structure of the human skeleton. These high-precision and diverse processing requirements pose significant challenges to the fixation, angle adjustment, and calibration processes during osteotomy plate manufacturing.

[0003] Currently, most commercially available osteotomy plate processing fixtures employ simple clamping structures, manually fixing the osteotomy plate with bolts and relying on manual angle adjustments. Their structural principle involves using clamping blocks and bolts to secure the osteotomy plate to a base, with operators manually rotating the fixture or osteotomy plate based on experience to achieve different processing angles. Regarding levelness calibration, rough adjustments are mostly made manually using tools such as levels, lacking precise calibration devices.

[0004] However, in actual processing scenarios, these traditional clamps reveal numerous problems. Because they rely on frequent manual disassembly and adjustment of the osteotomy plate angle, they are not only time-consuming, resulting in low processing efficiency and difficulty in meeting mass production needs; the simple clamping method cannot provide a stable fixation effect, and the osteotomy plate is prone to shaking during cutting, leading to decreased processing accuracy and affecting the performance of the osteotomy plate and surgical outcomes; at the same time, the lack of reliable anti-drop and precise calibration mechanisms means that when processing grooves with large tilt angles, the osteotomy plate is at risk of falling off, and levelness is difficult to guarantee, increasing scrap rate and processing costs. Therefore, this invention provides a four-sided osteotomy plate wire cutting clamp to address the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a four-sided osteotomy plate wire cutting fixture, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A four-sided osteotomy plate wire cutting fixture includes a base, a rotating mechanism mounted on the outer side of the base, a support plate disposed on the outer side of the rotating mechanism, a window opening inside the support plate, a positioning mechanism and a calibration mechanism disposed on the top of the support plate, and an anti-dropping mechanism disposed on the top of the calibration mechanism.

[0008] Preferably, the rotating mechanism includes a support base, the outer side of which is fixedly connected to the outer side of the base, a motor is mounted on the top of the support base, a rotating shaft is fixedly connected to the output end of the motor, and the outer side of the rotating shaft is fixedly connected to the inner side of the support plate.

[0009] Preferably, the positioning mechanism includes a fixed seat and an L-shaped seat, the bottom of which is fixedly connected to the top of the support plate, and the fixed seat is located at the corresponding position at the end of the rotating shaft.

[0010] Preferably, the bottom of the L-shaped seat is fixedly connected to the top of the support plate, the L-shaped seat is located on the side of the rotating shaft, and both the fixed seat and the L-shaped seat are threaded with studs. 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.

[0011] Preferably, the calibration mechanism includes a mounting base, the bottom of which is fixedly connected to the top of the support plate. A second motor is mounted on the outer side of the mounting base, and a rotating rod is fixedly connected to the output end of the second motor. The outer side of the rotating rod is rotatably connected to the inner side of the mounting base.

[0012] Preferably, two mounting plates are fixedly connected to one side of the mounting base, and a rotating rod is rotatably connected inside the two mounting plates. A cylindrical gear is fixedly connected to one end of both the rotating rod and the rotating rod, and the two cylindrical gears mesh.

[0013] Preferably, a zeroing roller is fixedly connected to the outer side of the rotating rod two, and two sets of anti-slip strips are provided on the outer side of the zeroing roller. Each set of anti-slip strips consists of multiple strips, and the multiple anti-slip strips are arranged in a ring array on the outer periphery of the zeroing roller.

[0014] Preferably, the anti-fall-off mechanism includes an L-shaped frame, one end of which is fixedly connected to the top of the mounting base, and a rotating column is rotatably connected to the bottom of the L-shaped frame, with the bottom end of the rotating column rotatably connected to the top of the mounting base.

[0015] Preferably, a pressure plate is movably connected to the outside of the rotating column, and a spring is sleeved on the outside of the rotating column. 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.

[0016] Preferably, a rod is fixedly connected to the bottom of the pressure plate, and a limiting hole is opened on the top of the mounting base, with one end of the rod inserted into the limiting hole.

[0017] In summary, the present invention has at least one of the following beneficial technical effects:

[0018] 1. The fixture of this invention significantly improves the processing efficiency of four-sided osteotomy plates. Traditional methods require frequent removal and readjustment of the fixture position. However, with this fixture, the osteotomy plate can be rotated to the required angle by motor drive. When processing grooves of different tilt angles 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.

[0019] 2. This invention prevents the osteotomy plate from shaking during processing by using a stable support surface and an all-around clamping method; it can also accurately calibrate the levelness of the osteotomy plate to prevent errors in the cutting groove angle due to level deviation. By addressing both fixation and calibration, this invention ensures high precision of the four-sided osteotomy plate during processing, making the processed osteotomy plate meet the high standards required for medical devices.

[0020] 3. When the osteotomy plate is rotated to a large angle and the original clamping force is insufficient, the anti-drop mechanism of the present invention can play a timely role. Manual operation makes the pressure plate press down on the osteotomy plate under the spring force, and the insertion rod is inserted into the limiting hole to prevent the pressure plate from shifting. The dual protection measures effectively prevent the osteotomy plate from falling off during processing, ensuring processing safety and avoiding equipment damage or safety accidents caused by osteotomy plate falling off. Attached Figure Description

[0021] Figure 1 This is a front perspective view of the present invention;

[0022] Figure 2 This is a rear perspective view of the present invention;

[0023] Figure 3 This is a bottom-view perspective view of the present invention;

[0024] Figure 4 This is a schematic diagram of the positioning mechanism of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of A in the middle;

[0026] Figure 6 This is a schematic diagram of the calibration mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the anti-detachment mechanism of the present invention;

[0028] Figure 8 This is a top view of the present invention;

[0029] Figure 9 This is a front view of the present invention;

[0030] Figure 10 This is a side view of the present invention.

[0031] The components include: 1. Base; 2. Rotating mechanism; 201. Support seat; 202. Motor 1; 203. Rotating shaft; 3. Support plate; 4. Window hole; 5. Positioning mechanism; 501. Fixed 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. Insert rod; 706. Limiting hole. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 10 The present invention will be further described in detail below.

[0033] This invention provides a four-sided osteotomy plate wire cutting fixture, including a base 1. The base 1 serves as the basic support structure of the entire fixture, providing a platform for the installation and stability of other components. A rotating mechanism 2 is installed on the outer side of the base 1. The rotating mechanism 2 can drive the components installed on it to rotate, thereby realizing the adjustment of different angles of the osteotomy plate to meet the needs of wire cutting grooves with different tilt angles.

[0034] The outer side of the rotating mechanism 2 is provided with a support plate 3, which is used to support and fix the four-sided osteotomy plate and other instruments to be processed. The support plate 3 has a window 4 inside. The design of the window 4 helps to facilitate the passage of tools such as wire cutting molybdenum wire during the processing, and avoids obstructing the processing.

[0035] The top of the support plate 3 is equipped with a positioning mechanism 5 and a calibration mechanism 6. The positioning mechanism 5 can accurately fix the position of the osteotomy plate to prevent displacement during processing and affect processing accuracy. The calibration mechanism 6 is used to calibrate the levelness of the osteotomy plate to ensure processing accuracy. The top of the calibration mechanism 6 is equipped with an anti-drop mechanism 7, which plays a safety role during osteotomy plate processing to prevent the osteotomy plate from falling off due to various reasons, ensuring the safety and stability of the processing.

[0036] The rotating mechanism 2 includes a support base 201, which is fixedly connected to the outer side of the base 1, providing support and a mounting base for other components of the rotating mechanism 2. A motor 202 is mounted on the top of the support base 201. The motor 202 serves as the power source for the rotating mechanism 2, and its output end is fixedly connected to a rotating shaft 203. After the motor 202 is started, it converts electrical energy into mechanical energy, driving the rotating shaft 203 to rotate.

[0037] The outer side of the rotating shaft 203 is fixedly connected to the inner side of the support plate 3. When the rotating shaft 203 rotates, it drives the support plate 3 and other instruments, such as the osteotomy plate placed on the support plate 3, to rotate together. In the wire cutting of the four-sided osteotomy plate, four different angled grooves need to be machined. By starting the motor 202, the support plate 3 can easily rotate the entire instrument to the required angle, eliminating the need for frequent readjustment and greatly improving processing efficiency.

[0038] 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 tray 3 and 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 tray 3 and is located on the side of the rotating shaft 203.

[0039] The fixing seat 501 and the L-shaped seat 502 work together to support and initially position the osteotomy plate from different directions. Both the fixing seat 501 and the L-shaped seat 502 are internally threaded with studs 503. One end of the stud 503 is fixedly connected to a handwheel 504. By rotating the handwheel 504, the stud 503 can be moved forward or backward in a linear motion using the principle of threaded transmission.

[0040] The other end of the stud 503 is provided with an anti-slip clamp 505. When the handwheel 504 is turned so that the stud 503 drives the anti-slip clamp 505 forward, the anti-slip clamp 505 can tightly clamp the osteotomy plate and other instruments.

[0041] In actual operation, the bottom of the four-sided osteotomy plate and other instruments are placed on the support surface of the mounting base 601 and the L-shaped base 502. Then, the handwheels 504 on the fixed base 501 and the L-shaped base 502 are rotated respectively to make the anti-slip clamping block 505 gradually approach and clamp the instrument, ensuring the stability of the instrument during the processing and avoiding the impact of shaking or displacement on the accuracy of wire cutting.

[0042] The calibration mechanism 6 includes a mounting base 601, the bottom of which is fixedly connected to the top of the support plate 3, providing a mounting base for other components of the calibration mechanism 6. A second motor 602 is mounted on the outside of the mounting base 601. The second motor 602 serves as the power source for the calibration mechanism 6, and its output end is fixedly connected to a rotating rod 603. After the second motor 602 is started, it drives the rotating rod 603 to rotate.

[0043] The outer side of rotating rod 603 is rotatably connected to the inner side of mounting base 601, ensuring smooth rotation of rotating rod 603. Two mounting plates 604 are fixedly connected to one side of mounting base 601, serving to install and support rotating rod 605. Rotating rod 605 is rotatably connected inside the two mounting plates 604. Both rotating rod 605 and rotating rod 603 have a cylindrical gear 606 fixedly connected to one end. The two cylindrical gears 606 mesh. When motor 602 drives rotating rod 603 to rotate, the cylindrical gear 606 at one end of rotating rod 603 rotates accordingly. Because the two cylindrical gears 606 mesh, they can drive the cylindrical gear 606 at one end of rotating rod 605 to rotate as well, thus causing rotating rod 605 to rotate. A zeroing roller 607 is fixedly connected to the outer side of rotating rod 605. When rotating rod 605 rotates, it drives the zeroing roller 607 to rotate as well.

[0044] Two sets of anti-slip strips 608 are provided on the outer side of the zeroing roller 607. Each set of anti-slip strips 608 consists of multiple strips, and the multiple anti-slip strips 608 are arranged in a ring array on the outer periphery of the zeroing roller 607. The anti-slip strips 608 can increase the friction between the zeroing roller 607 and instruments such as the osteotomy plate.

[0045] When it is necessary to calibrate the level of instruments such as osteotomy plates, motor 2 602 is started. Motor 2 602 drives rotating rod 1 603 to rotate. Through the meshing transmission of two cylindrical gears 606, rotating rod 2 605 drives the zeroing roller 607 to rotate. The anti-slip strip 608 increases the friction while slightly raising the instrument to a certain angle. In this way, the level of the instrument is calibrated, ensuring the accuracy of wire cutting.

[0046] The anti-fall-off 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 other components of the anti-fall-off mechanism 7. A rotating column 702 is rotatably connected to the bottom of the L-shaped frame 701, 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.

[0047] A pressure plate 704 is movably connected to the outside of the rotating column 702, and the pressure plate 704 can rotate around the rotating column 702 at a certain angle. 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 to the pressure plate 704.

[0048] A rod 705 is fixedly connected to the bottom of the pressure plate 704, and a limiting hole 706 is provided on the top of the mounting base 601. When the osteotomy plate or other instruments are rotated 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 down on the instrument, and at the same time, the rod 705 will be inserted into the limiting hole 706. This can prevent the pressure plate 704 from shifting, ensuring that the pressure plate 704 continuously and stably clamps the instrument to prevent it from falling off, thus ensuring the safety and stability of the processing.

[0049] Specifically, in the processing of the four-sided osteotomy plate, since four different inclined grooves need to be machined on a wire cutting machine, this fixture can play a significant role. First, the bottom of the osteotomy plate is placed stably on the support surface 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.

[0050] Next, hold the handwheels 504 on the fixed base 501 and L-shaped base 502 with both hands and slowly rotate them clockwise. Through the thread transmission principle, the stud 503 will drive the anti-slip clamp 505 to move towards the osteotomy plate. As the anti-slip clamp 505 fits tightly with the osteotomy plate, the instrument is firmly clamped. This all-round clamping method can effectively avoid any slight shaking of the osteotomy plate during processing and ensure processing accuracy.

[0051] Subsequently, motor 202 is started, which converts electrical energy into mechanical energy and drives 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 rotate. According to the 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 method, which greatly improves the processing efficiency.

[0052] When the osteotomy plate is at a specific processing angle, if a deviation in its levelness is detected, motor 2 602 is activated. Motor 2 602 drives rotating rod 1 603 to rotate, and through two meshing cylindrical gears 606, the power is transmitted to rotating rod 2 605, which in turn drives the zeroing roller 607 to rotate. The multiple anti-slip strips 608 in the annular array on the outer periphery of the zeroing roller 607 contact the osteotomy plate, which not only increases the friction but also slightly lifts one side of the osteotomy plate through the force generated by the rotation, achieving levelness calibration and ensuring the accurate angle of the cutting groove.

[0053] If the osteotomy plate is rotated at a large angle and the clamping force of the calibration mechanism 6 is insufficient on one side, the pressure plate 704 can be manually rotated so that one end of it rotates to the outside of the osteotomy plate. At this time, under the strong elastic force of the spring 703, the pressure plate 704 quickly presses down on the osteotomy plate. At the same time, the insertion rod 705 at the bottom of the pressure plate 704 is precisely inserted into the limiting hole 706 at the top of the mounting base 601. The double protection ensures that the pressure plate 704 is stable and does not shift, providing reliable anti-drop protection for the osteotomy plate and ensuring that the entire processing process is carried out safely and stably.

[0054] Working principle: During the processing of this medical device, the four-sided osteotomy plate, four different inclined grooves need to be machined on a wire cutting machine. Therefore, it is placed on this fixture. First, the bottom of the device is placed on the support surface of the mounting base 601 and the L-shaped base 502. By rotating the two handwheels 504, the stud 503 can drive the anti-slip clamp 505 to advance, thereby clamping the device. Then, the motor 202 is started to drive the rotating shaft 203 to rotate, which can make the support plate 3 drive the device to flip over. This makes it easy to open different grooves without frequently adjusting the device.

[0055] When it is necessary to calibrate the level of the instrument, the motor 602 can be started to drive the rotating rod 603. In this way, the two cylindrical gears 606 rotate simultaneously, causing the rotating rod 605 to drive the zeroing roller 607 to rotate. The anti-slip strip 608 is used to increase the friction while allowing the instrument to be raised at an angle, thereby realizing the calibration function.

[0056] In addition, when the appliance is flipped to a certain angle, if the clamping force of the calibration mechanism 6 on one side of the appliance is insufficient, the pressure plate 704 can be rotated so that one end moves to the outside of the appliance. Under the elastic force of the spring 703, the pressure plate 704 can press the appliance down, and the insertion rod 705 will be inserted into the inside of the limiting hole 706, so that the pressure plate 704 will not shift.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quadri-osteotomy plate wire cutting fixture, characterized by, The utility model provides a kind of rotary mechanism, including base (1), the outside of the base (1) is equipped with rotating mechanism (2), the outside of the rotating mechanism (2) is provided with supporting plate (3), the inside of the supporting plate (3) is equipped with window hole (4), the top of the supporting plate (3) is provided with positioning mechanism (5) and calibration mechanism (6), the top of the calibration mechanism (6) is provided with anti-falling mechanism (7), the rotating mechanism (2) includes support seat (201), the outside of the support seat (201) is fixedly connected in the outside of base (1), the top of the support seat (201) is equipped with motor one (202), the output of the motor one (202) is fixedly connected with rotating shaft (203), the outside of the rotating shaft (203) is fixedly connected with the inside of supporting plate (3), the positioning mechanism (5) includes fixed seat (501) and L-shaped seat (502), the bottom of the fixed seat (501) is fixedly connected in the top of supporting plate (3), the fixed seat (501) is located in the end head corresponding position of rotating shaft (203), the calibration mechanism (6) includes mounting seat (601), the bottom of the mounting seat (601) is fixedly connected in the top of supporting plate (3), the outside of the mounting seat (601) is equipped with motor two (602), the output of the motor two (602) is fixedly connected with rotary rod one (603), the outside of the rotary rod one (603) is rotatably connected with the inside of mounting seat (601), the anti-falling mechanism (7) includes L-shaped frame (701), one end of the L-shaped frame (701) is fixedly connected in the top of mounting seat (601), the bottom of the L-shaped frame (701) is rotatably connected with rotating column (702), the bottom of the rotating column (702) is rotatably connected with the top of mounting seat (601).

2. A four-sided osteotomy plate wire cutting fixture according to claim 1, wherein, The bottom of the L-shaped seat (502) is fixedly connected in the top of supporting plate (3), the L-shaped seat (502) is located in the side edge position of rotating shaft (203), the inside of the fixed seat (501) and L-shaped seat (502) is all screw threadedly connected with stud (503), one end of the stud (503) is fixedly connected with hand wheel (504), the other end of the stud (503) is provided with anti-skid clamping block (505).

3. A four-sided osteotomy plate wire cutting fixture according to claim 2, wherein, One side of the mounting seat (601) is fixedly connected with two assembly plates (604), the inside of two assembly plates (604) is rotatably connected with rotary rod two (605), one end of the rotary rod two (605) and rotary rod one (603) is fixedly connected with cylindrical gear (606), two cylindrical gears (606) are engaged.

4. A four-sided osteotomy plate wire cutting fixture according to claim 3, wherein, The outside of the rotary rod two (605) is fixedly connected with zero calibration roller (607), the outside of the zero calibration roller (607) is provided with two groups of anti-skid strips (608), the number of each group of anti-skid strips (608) is multiple, multiple anti-skid strips (608) are annular array in the outer circumference of zero calibration roller (607).

5. A four-sided osteotomy plate wire cutting fixture according to claim 4, wherein, The outer movable connection of the rotating column (702) is provided with a pressing plate (704), the outer sleeve of the rotating column (702) is provided with a spring (703), one end of the spring (703) is fixedly connected with the top of the pressing plate (704), and the other end of the spring (703) is fixedly connected with the bottom of the L-shaped frame (701).

6. A four-sided osteotomy plate wire cutting fixture according to claim 5, wherein, The bottom of the pressing plate (704) is fixedly connected with a inserting rod (705), the top of the mounting seat (601) is provided with a limiting hole (706), and one end of the inserting rod (705) is inserted into the inside of the limiting hole (706).

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