Oral surgery guide angle measuring device

Abstract

This utility model discloses an angle measuring device for oral surgical guides, relating to the field of medical measuring instruments. It includes a connecting base block, a vertical rod fixedly connected to the center of the upper surface of the connecting base block, and a positioning rod fixedly connected to the center of the bottom surface of the connecting base block. A reference plate is provided at the upper end of the vertical rod, and an indicator plate adapted to the reference plate is rotatably connected to the side wall of the vertical rod. By inserting the positioning rod into the implant hole, the positioning plate abuts against one side of the tooth, aligning the connecting base block. Then, the indicator plate is rotated so that the abutment plate abuts against the outer side of the adjacent tooth. At this time, the pointer at the upper end of the indicator plate also rotates with it and is positioned on the surface of the reference plate by a resistance strip. The device is then removed to observe the scale data from the front. By removing the device to observe the data, the angle data can be obtained more accurately, and the fixed indication after the pointer is removed further improves the accuracy of the data.

Description

Technical Field

[0001] This utility model relates to the field of medical measuring instruments, specifically to a device for measuring the angle of an oral surgical guide. Background Technology

[0002] During dental implant surgery, the surgical guide plays a crucial role as an important auxiliary tool. The surgical guide is often a computer-generated irregular crown that conforms to the gums or remaining teeth. The surgical guide has holes for drilling the implant. With the assistance of the surgical guide, the depth and direction of implant placement are ensured to be correct, and the doctor can complete the dental implant surgery more quickly and reduce the operation time.

[0003] However, after the guide plate is fabricated, slight deviations may occur due to printing accuracy, material shrinkage, or post-processing. Furthermore, differences in alveolar bone morphology between preoperative images and intraoperative conditions (such as bone resorption and soft tissue swelling) may affect the fit of the guide plate, causing the actual drilling direction to deviate from the design. Slight displacement may also occur due to saliva, blood, or operating force. Therefore, it is necessary to verify whether the opening angle of the holes on the guide plate is consistent with the design.

[0004] Most current measuring tools are metal angle rulers, directional rods, etc. During operation, doctors manually align the guide plate holes with the reference plane and need to observe the angle data on the scale with the naked eye. This is easily affected by the angle error and the operator's experience, making it difficult to guarantee accuracy and practicality. Utility Model Content

[0005] The purpose of this invention is to provide an oral surgery guide angle measuring device to solve the above problems, as detailed below.

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

[0007] The oral surgery guide angle measuring device provided by this utility model includes a connecting base block, a vertical rod fixedly connected to the middle of the upper surface of the connecting base block, a positioning rod fixedly connected to the middle of the bottom surface of the connecting base block, a reference plate provided at the upper end of the vertical rod, an indicator plate adapted to the reference plate rotatably connected to the side wall of the vertical rod, and a support plate that can move along its extension direction provided on the lower side of the indicator plate.

[0008] Preferably, the surface of the positioning rod is provided with annular scale.

[0009] Preferably, a positioning plate is fixedly connected to the end of the connecting base block.

[0010] Preferably, the reference plate is arc-shaped, with scales on the outer side, and a pointer adapted to the scales is fixedly connected to the upper end of the indicator plate.

[0011] Preferably, a resistance strip that abuts against the indicator plate is fixedly connected to the side wall of the control plate.

[0012] Preferably, the rotation point of the indicator plate is located at the center of the arc of the reference plate.

[0013] Preferably, two L-shaped slide rails are fixedly connected to the lower side wall of the indicator plate, and a T-shaped slider is slidably connected between the two L-shaped slide rails, with the abutment plate connected to one side of the T-shaped slider.

[0014] Preferably, a telescopic rod is fixedly connected to the end of the T-shaped slider, and the movable end of the telescopic rod is fixedly connected to the abutment plate.

[0015] Preferably, an anti-slip pad is fixedly connected to the side wall of the T-shaped slider, and the anti-slip pad abuts against the surface of the indicator plate.

[0016] Preferably, the upright and the positioning rod are located on the same axis.

[0017] The beneficial effects are:

[0018] By inserting the positioning rod into the implant hole, the positioning plate is brought into contact with the tooth on one side. At this time, the connecting block is positioned correctly. Then, the indicator plate is rotated so that the abutment plate is in contact with the outside of the adjacent tooth. At this time, the pointer at the top of the indicator plate also rotates with it and is positioned on the surface of the control plate by the resistance bar. Then, the device is removed and the scale data is observed from the front. By removing the device and observing the data, the angle data can be obtained more accurately. At the same time, the fixed indication after the pointer is removed further improves the accuracy of the data. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of the measurement state of this utility model;

[0021] Figure 2 This is a perspective view of the present invention;

[0022] Figure 3 This is a perspective view of the abutment plate of this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Connecting base block; 2. Positioning rod; 3. Upright pole; 4. Reference plate; 5. Indicator plate; 6. Support plate; 7. Positioning plate; 8. Circular scale; 9. L-shaped slide rail; 10. T-shaped slider; 11. Telescopic rod; 12. Scale; 13. Pointer; 14. Resistance bar; 15. Anti-slip pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] See Figures 1-3 As shown, this utility model provides an oral surgery guide angle measuring device, including a connecting base block 1, a vertical rod 3 fixedly connected to the middle of the upper surface of the connecting base block 1, a positioning rod 2 fixedly connected to the middle of the bottom surface of the connecting base block 1, a reference plate 4 provided at the upper end of the vertical rod 3, an indicator plate 5 adapted to the reference plate 4 rotatably connected to the side wall of the vertical rod 3, and an abutment plate 6 that can move along its extension direction provided on the lower side of the indicator plate 5.

[0027] Furthermore, the surface of the positioning rod 2 is provided with an annular scale 8, which indicates the drilling depth of the implantation hole.

[0028] Specifically, a positioning plate 7 is fixedly connected to the end of the connecting base block 1. After the positioning rod 2 is inserted into the implant hole, it abuts against the surface of the adjacent tooth through the positioning plate 7. At this time, the overall angle of the connecting base block 1 is flush with the adjacent tooth, which facilitates subsequent measurement operations.

[0029] Reference Figure 2 As shown, the reference plate 4 has an arc-shaped design. The outer side of the reference plate 4 is provided with a scale 12. The upper end of the indicator plate 5 is fixedly connected to a pointer 13 that matches the scale 12. The rotation point of the indicator plate 5 is located at the center of the arc of the reference plate 4. The scale 12 and the pointer 13 of the arc-shaped reference plate 4 constitute a precision angle indication system. When the abutment plate 6 abuts against the outer side of the adjacent teeth, the pointer 13 at the upper end of the indicator plate 5 also rotates with it and is positioned on the surface of the reference plate 4 by the resistance bar 14. Then the device is removed and the scale data is observed from the front.

[0030] Specifically, a resistance strip 14 is fixedly connected to the side wall of the reference plate 4, which abuts against the indicator plate 5. The resistance strip 14 can make the indicator plate 5 rotate with resistance, thereby achieving a static state when no external force is applied, which makes it easy to take accurate readings after the device is removed.

[0031] As an optional implementation, two L-shaped slide rails 9 are fixedly connected to the lower side wall of the indicator plate 5, and a T-shaped slider 10 is slidably connected between the two L-shaped slide rails 9. The abutment plate 6 is connected to one side of the T-shaped slider 10. The two L-shaped slide rails 9 can make the T-shaped slider 10 and the abutment plate 6 more stable when moving.

[0032] Specifically, a telescopic rod 11 is fixedly connected to the end of the T-shaped slider 10. The movable end of the telescopic rod 11 is fixedly connected to the abutment plate 6. The telescopic rod 11 is an outer tube sleeve with an inner insert rod. This is existing technology and will not be described in detail here. The abutment plate 6 can be extended according to the distance between it and the adjacent teeth, so that the abutment plate 6 can effectively abut against the surface of the adjacent teeth. At the same time, the inner insert rod can rotate in the outer tube sleeve, so that the abutment plate 6 can rotate around it as an axis, so that the abutment plate 6 can be used on both sides of the implant hole.

[0033] Reference Figure 3 As shown, an anti-slip pad 15 is fixedly connected to the side wall of the T-shaped slider 10, and the anti-slip pad 15 abuts against the surface of the indicator plate 5. The anti-slip pad 15 can increase the friction of the T-shaped slider 10 when it moves, so that the abutment plate 6 can reach a static state when no external force is applied.

[0034] Specifically, the upright rod 3 and the positioning rod 2 are located on the same axis. The coaxial design ensures the consistency of the measurement benchmark and guarantees that the angle of the implant tooth is consistent when it is inserted into the implant hole.

[0035] The working principle of this utility model:

[0036] After the surgical guide is fabricated, an implant hole is drilled on the patient's dental model. Then, the positioning rod 2 is inserted into the implant hole, so that the positioning plate 7 abuts against one side of the tooth. At this time, the connecting base block 1 is aligned. Then, the indicator plate 5 is rotated so that the abutment plate 6 abuts against the outside of the adjacent tooth. At this time, the pointer 13 at the top of the indicator plate 5 also rotates with it and is positioned on the surface of the control plate 4 by the resistance bar 14. Then, the device is removed and the scale data is observed from the front. By adjusting the height of the T-shaped slider 10, the abutment plate 6 can measure the change of tooth angle at different height positions. After obtaining the measurement data, it is compared with the original data in the computer to determine whether the opening of the surgical guide is accurate, and at the same time, whether the implant is aligned and flat with the surface of the surrounding teeth.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An oral surgical guide angle measuring device, characterized in that: The device includes a connecting base block (1), a vertical rod (3) is fixedly connected to the middle of the upper surface of the connecting base block (1), a positioning rod (2) is fixedly connected to the middle of the bottom surface of the connecting base block (1), a reference plate (4) is provided at the upper end of the vertical rod (3), an indicator plate (5) adapted to the reference plate (4) is rotatably connected to the side wall of the vertical rod (3), and an abutment plate (6) that can move along its extension direction is provided on the lower side of the indicator plate (5).

2. The oral surgery guide angle measuring device according to claim 1, characterized in that: The surface of the positioning rod (2) is provided with annular scale (8).

3. The oral surgery guide angle measuring device according to claim 1, characterized in that: A positioning plate (7) is fixedly connected to the end of the connecting base block (1).

4. The oral surgery guide angle measuring device according to claim 1, characterized in that: The reference plate (4) is arc-shaped, and the outer side of the reference plate (4) is provided with a scale (12). The upper end of the indicator plate (5) is fixedly connected with a pointer (13) that matches the scale (12).

5. The oral surgery guide angle measuring device according to claim 1, characterized in that: A resistance strip (14) that abuts against the indicator plate (5) is fixedly connected to the side wall of the control plate (4).

6. The oral surgery guide angle measuring device according to claim 4, characterized in that: The rotation point of the indicator plate (5) is located at the center of the arc of the reference plate (4).

7. The oral surgery guide angle measuring device according to claim 1, characterized in that: Two L-shaped slide rails (9) are fixedly connected to the lower side wall of the indicator plate (5), and a T-shaped slider (10) is slidably connected between the two L-shaped slide rails (9). The abutment plate (6) is connected to one side of the T-shaped slider (10).

8. The oral surgery guide angle measuring device according to claim 7, characterized in that: The end of the T-shaped slider (10) is fixedly connected to a telescopic rod (11), and the movable end of the telescopic rod (11) is fixedly connected to the abutment plate (6).

9. The oral surgery guide angle measuring device according to claim 7, characterized in that: An anti-slip pad (15) is fixedly connected to the side wall of the T-shaped slider (10), and the anti-slip pad (15) abuts against the surface of the indicator plate (5).

10. The oral surgery guide angle measuring device according to claim 1, characterized in that: The upright (3) and the positioning rod (2) are located on the same axis.

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