An angle-adjustable bone saw guide

Abstract

The utility model provides an angle adjustable saw bone guide plate, including baffle, one end fixed setting of baffle has the guide plate, is equipped with the adjusting limit slot on the guide plate, rotation is equipped with the adjusting guide plate in the adjusting limit slot, is equipped with the guide slot on the adjusting guide plate, the both sides wall of adjusting limit slot all are fixedly connected with the limiting pad piece, the limiting pad piece is located between the one side wall of adjusting limit slot and the outside of adjusting guide plate, still is equipped with the first thread groove on the guide plate, is connected with the first screw rod in the first thread groove, the one end fixed connection of baffle is away from the guide plate has the location component. This scheme passes through the thread linkage mode of first screw rod and adjusting limit slot, makes the operator only needs to rotate first torsional block to be accurate control adjusting guide plate's inclination angle, to reach the purpose of single -handed operation angle fine adjustment and the promotion cutting precision.

Description

Technical Field

[0001] This utility model relates to the field of bone sawing auxiliary equipment technology, specifically an adjustable bone sawing guide plate. Background Technology

[0002] In orthopedic surgery, bone-cutting guides are crucial tools for precise bone resection. Traditional guide angle adjustments often rely on manual adjustments or complex external locking devices, resulting in cumbersome operation and insufficient adjustment precision. For example, existing guide adjustment mechanisms frequently employ multi-axis linkages or gear structures, requiring two-handed operation and making rapid intraoperative fine-tuning difficult, especially in confined surgical fields or complex bone surface morphologies. Furthermore, the adjusted guide is prone to shifting or loosening due to a lack of effective restraint, leading to deviations in the cutting trajectory and impacting surgical outcomes.

[0003] To address the aforementioned issues, while existing technologies have proposed solutions for adjusting the angle using threaded rods, most structures suffer from drawbacks such as large clearances between the screw and the guide plate, and uncontrollable adjustment strokes, resulting in low fine-tuning accuracy and insufficient stability. Furthermore, stress concentration during adjustment can easily cause component deformation, further reducing the reliability of the guide plate. Therefore, there is an urgent need for a bone-cutting guide plate that enables rapid one-handed adjustment, precise positioning, and structural stability to improve surgical efficiency and safety. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable-angle saw guide plate, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable-angle bone saw guide plate, characterized in that: it includes a baffle, a guide plate is fixedly mounted on one end of the baffle, an adjustment limiting groove is provided on the guide plate, an adjustment guide plate is rotatably mounted in the adjustment limiting groove, a guide groove is provided on the adjustment guide plate, limiting pads are fixedly connected to both sides of the adjustment limiting groove, the limiting pads are placed between one side wall of the adjustment limiting groove and the outer side of the adjustment guide plate, a first threaded groove is also provided on the guide plate, a first screw is threadedly connected in the first threaded groove, and a positioning component is fixedly connected to the end of the baffle away from the guide plate.

[0008] Preferably, the positioning component includes a first connecting rod and a shaping seat. One end of the first connecting rod is fixedly connected to the baffle, and the other end of the first connecting rod is fixedly connected to the shaping seat. The shaping seat has a plurality of second screw holes, and a second Kirschner wire is threaded into the second screw hole. A second Kirschner wire base is fixedly connected to one end of the second Kirschner wire near the baffle.

[0009] Preferably, the baffle has a first sliding groove at one end near the guide plate, a first Kirschner wire is slidably connected in the first sliding groove, one end of the first Kirschner wire is fixedly connected to a first Kirschner wire base, and a fixed end is provided at the end of the first Kirschner wire away from the first Kirschner wire base.

[0010] Preferably, the side of the shaping seat away from the first connecting rod is arc-shaped, and a plurality of second screw holes are equally spaced on the shaping seat, the second screw holes being arranged perpendicular to the side of the baffle close to the first connecting rod.

[0011] Preferably, one side of the guide plate is provided with an arc surface, the first threaded groove passes through the adjustment limiting groove, and the first threaded groove is provided at both ends of the arc surface of the guide plate away from the baffle.

[0012] Preferably, a first torsion block is fixedly connected to the end of the first screw away from the adjusting guide plate.

[0013] (III) Beneficial Effects

[0014] This invention provides an adjustable-angle saw guide plate. It has the following advantages:

[0015] 1. This solution uses the threaded linkage between the first screw and the adjusting limit groove, allowing the operator to precisely control the tilt angle of the adjusting guide plate simply by rotating the first torsion block, thereby achieving the purpose of single-handed operation for fine-tuning the angle and improving cutting accuracy.

[0016] 2. This solution uses the combination of limiting pads and adjusting guide plates to ensure uniform force distribution and clear mechanical limiting during angle adjustment, thereby preventing over-adjustment and enhancing the structural stability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a lower view of the structure of this utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0020] Figure 4for Figure 2 Schematic diagram of the cross-sectional structure of BB;

[0021] Figure 5 for Figure 2 A schematic diagram of the cross-sectional structure of CC.

[0022] In the diagram: 11. Baffle; 12. Guide plate; 13. Adjustable limiting groove; 14. Adjustable guide plate; 15. Guide groove; 16. Limiting pad; 17. First threaded groove; 18. First screw; 19. First torsion block; 20. First sliding groove; 21. First Kirschner wire; 22. First Kirschner wire base; 23. First connecting rod; 24. Shaped seat; 25. Second screw hole; 26. Second Kirschner wire; 27. Second Kirschner wire base. Detailed Implementation

[0023] This utility model embodiment provides an adjustable angle saw guide plate, such as... Figure 1-5 As shown, it includes a baffle 11, a guide plate 12, an adjusting limit groove 13, an adjusting guide plate 14, a guide groove 15, a limiting pad 16, a first threaded groove 17, a first screw 18, a first torsion block 19, a first sliding groove 20, a first Kirschner wire 21, a first Kirschner wire base 22, a first connecting rod 23, a conformal seat 24, a second screw hole 25, a second Kirschner wire 26, and a second Kirschner wire base 27.

[0024] like Figure 1-5 As shown, a guide plate 12 is fixedly installed at one end of the baffle 11. An adjustment limiting groove 13 is provided on the guide plate 12. An adjustment guide plate 14 is rotatably installed in the adjustment limiting groove 13. A guide groove 15 is provided on the adjustment guide plate 14. Limiting pads 16 are fixedly connected to both sides of the adjustment limiting groove 13. The limiting pads 16 are placed between one side wall of the adjustment limiting groove 13 and the outer side of the adjustment guide plate 14. A first threaded groove 17 is also provided on the guide plate 12. A first screw 18 is threadedly connected to the first threaded groove 17. A positioning component is fixedly connected to the end of the baffle 11 away from the guide plate 12.

[0025] The limiting pad 16 is made of titanium alloy.

[0026] A curved surface is provided on one side of the guide plate 12. The first threaded groove 17 passes through the adjustment limiting groove 13. The first threaded groove 17 is provided at both ends of the curved surface of the guide plate 12 away from the baffle 11. The first screw 18 is fixedly connected to the first torsion block 19 at the end away from the adjustment guide plate 14.

[0027] The positioning assembly includes a first connecting rod 23 and a shaping seat 24. One end of the first connecting rod 23 is fixedly connected to the baffle 11, and the other end of the first connecting rod 23 is fixedly connected to the shaping seat 24. The shaping seat 24 has several second screw holes 25. A second Kirschner wire 26 is internally threaded into the second screw hole 25. A second Kirschner wire base 27 is fixedly connected to the end of the second Kirschner wire 26 near the baffle 11.

[0028] A first sliding groove 20 is provided at one end of the baffle 11 near the guide plate 12. A first Kirschner wire 21 is slidably connected in the first sliding groove 20. A first Kirschner wire base 22 is fixedly connected to one end of the first Kirschner wire 21. A fixed end is provided at the end of the first Kirschner wire 21 away from the first Kirschner wire base 22. The side of the shape-forming seat 24 away from the first connecting rod 23 is arc-shaped. Several second screw holes 25 are equally spaced on the shape-forming seat 24. The second screw holes 25 are perpendicular to the side of the baffle 11 near the first connecting rod 23.

[0029] When adjusting the angle of the bone saw guide plate in this scheme, first, place the guide plate 12 at the position where the bone is to be sawed, align the arc surface of the shaping seat 24 with the bone, and rotate the second Kirschner wire base 27. The second Kirschner wire base 27 drives the second Kirschner wire 26 to be threadedly connected to the second screw hole 25, thereby fixing the second Kirschner wire 26 to the bone surface.

[0030] Then, the first Kirschner wire base 22 is pushed, causing the first Kirschner wire 21 to slide along the extension direction of the first sliding groove 20 until the first Kirschner wire 21 is fixed to the bone surface. Finally, the first torsion block 19 is rotated, causing the first screw 18 to rotate. The first screw 18 is threadedly connected to the first threaded groove 17, thereby adjusting the depth of the first screw 18 in the first threaded groove 17. The first screw 18 pushes the bottom of the adjusting guide plate 14, thereby adjusting the angle of the adjusting guide plate 14.

[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable-angle bone saw guide plate, characterized in that: The system includes a baffle (11), one end of which is fixedly provided with a guide plate (12). An adjustment limiting groove (13) is provided on the guide plate (12). An adjustment guide plate (14) is rotatably provided in the adjustment limiting groove (13). A guide groove (15) is provided on the adjustment guide plate (14). Limiting pads (16) are fixedly connected to both sides of the adjustment limiting groove (13). The limiting pads (16) are placed between one side wall of the adjustment limiting groove (13) and the outer side of the adjustment guide plate (14). A first threaded groove (17) is also provided on the guide plate (12). A first screw (18) is threadedly connected in the first threaded groove (17). A positioning component is fixedly connected to one end of the baffle (11) away from the guide plate (12).

2. The adjustable-angle saw guide plate according to claim 1, characterized in that: The positioning assembly includes a first connecting rod (23) and a shaping seat (24). One end of the first connecting rod (23) is fixedly connected to the baffle (11), and the other end of the first connecting rod (23) is fixedly connected to the shaping seat (24). The shaping seat (24) has a plurality of second screw holes (25). A second Kirschner wire (26) is internally threaded into the second screw hole (25). A second Kirschner wire base (27) is fixedly connected to one end of the second Kirschner wire (26) near the baffle (11).

3. The adjustable-angle saw guide plate according to claim 2, characterized in that: The baffle (11) has a first sliding groove (20) at one end near the guide plate (12). A first Kirschner wire (21) is slidably connected in the first sliding groove (20). A first Kirschner wire base (22) is fixedly connected to one end of the first Kirschner wire (21). A fixed end is provided at the end of the first Kirschner wire (21) away from the first Kirschner wire base (22).

4. The adjustable-angle saw guide plate according to claim 2, characterized in that: The side of the shape-forming seat (24) away from the first connecting rod (23) is arc-shaped, and a number of second screw holes (25) are equally spaced on the shape-forming seat (24). The second screw holes (25) are arranged perpendicular to the side of the baffle (11) near the first connecting rod (23).

5. The adjustable-angle saw guide plate according to claim 1, characterized in that: The guide plate (12) has an arc surface on one side, and the first threaded groove (17) is provided through the adjustment limiting groove (13). The first threaded groove (17) is provided at both ends of the arc surface of the guide plate (12) away from the baffle (11).

6. The adjustable-angle saw guide plate according to claim 1, characterized in that: The first screw (18) is fixedly connected to a first torsion block (19) at the end away from the adjusting guide plate (14).

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