An oral surgery guide angle measurement device

Abstract

The utility model discloses an oral surgery guide plate angle measuring device relates to angle measuring device technical field, including base, the top of base is provided with the connecting plate, the top of connecting plate is provided with the dial, is provided with the carousel between base and dial, the middle part of base is provided with the object carrier disc, the inside of carousel is provided with telescopic mechanism, and the extension end of telescopic mechanism is provided with the arc plate, and the recess of arc plate is provided with the pointer. The utility model discloses an oral surgery guide plate angle measuring device, through the worm and worm gear drive cooperation gear and carousel tooth engagement of driving mechanism, can the rotation steady conversion of hand wheel be the accurate rotation of carousel, realizes fine angle adjustment, also relies on the self -locking characteristic of worm and worm gear and prevents carousel measurement when self -drift, guarantees the angle stability, and the antiskid line of hand wheel and the speed reduction and torque increasing effect of worm drive, reduced operating force and difficulty, simplify the adjustment process, effectively promote the precision and efficiency of guide plate angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of angle measuring device technology, and in particular to an angle measuring device for an oral surgical guide. Background Technology

[0002] An oral surgical guide is a personalized medical aid tool. Based on the patient's oral cavity anatomy data (such as CBCT scans and intraoral scan results), it is made using 3D design and printing technology. It is mainly used in oral surgery (such as dental implants, orthodontics, and maxillofacial surgery) to guide surgical instruments (such as implant drills and implants) or to position the treatment site, avoiding the errors of "free hand operation". The oral surgical guide angle measuring device is used to detect whether its angle has deviated, so as to avoid affecting the treatment effect.

[0003] Chinese patent document CN219230219U discloses a device for measuring the angle of an oral surgical guide, relating to the field of oral medical device technology. It includes: a scale component with arc-shaped angle markings on one side; a pointer capable of rotating around the center of the circle containing the angle markings; a positioning component for abutting against an implant drill; and a transmission linkage, one end connected to the positioning component and the other end connected to the pointer via a transmission assembly. This invention uses the positioning component to abut against the implant drill, and then the transmission assembly transmits the deflection of the positioning component to the pointer, indicating the deflection angle of the positioning component on the scale component. This allows for direct measurement of the implant drill's tilt angle during oral implant surgery.

[0004] The existing technology has the following problems: Although the above-mentioned utility model uses gears for angle adjustment, the gears lack a self-locking structure. If the pointer or transmission component is touched by external force during the measurement process, it is easy to shift and cannot maintain a stable measurement state. In addition, it lacks a structure for automatically compensating for the fitting gap. When there are differences in the size or curvature of the guide plate, the fitting is easy to be loose, resulting in positioning deviation. Utility Model Content

[0005] This invention provides a device for measuring the angle of an oral surgical guide to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An oral surgery guide angle measuring device includes a base, a connecting plate above the base, a scale above the connecting plate, a turntable between the base and the scale, a loading plate in the middle of the base, a telescopic mechanism inside the turntable, an arc-shaped plate at the telescopic end of the telescopic mechanism, and a pointer on the concave surface of the arc-shaped plate. The upper surface of the dial is provided with graduations, the origin is provided above the loading plate, and a drive mechanism is provided at the lower part of the dial, which drives the turntable to rotate.

[0007] Preferably, the telescopic mechanism includes a sleeve disposed inside the turntable, and a slide rod is disposed inside the sleeve. The side of the slide rod away from the turntable is connected to the concave surface of the arc plate, and a limit plate is disposed on the side of the slide rod away from the arc plate.

[0008] Preferably, a tension spring is provided on the side of the limiting plate away from the slide rod, and the end of the tension spring away from the limiting plate is installed inside the sleeve.

[0009] Preferably, the driving mechanism includes a rotating shaft, which is disposed on the upper part of the base. A gear is provided on the outer periphery of the rotating shaft, and teeth are provided on the inner side of the turntable. The gear and the inner side of the turntable mesh with each other.

[0010] Preferably, a worm gear is provided on the upper part of the rotating shaft, and a worm is provided inside the dial, with the worm and the worm gear meshing with each other.

[0011] Preferably, a handwheel is provided at the end of the worm gear away from the worm wheel, a cover plate is provided on the upper part of the dial, and the rotating shaft is provided at the lower part of the cover plate.

[0012] Preferably, the pointer is made of transparent acrylic material, and a pointer guide line is provided at the center line of the pointer.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a device for measuring the angle of an oral surgical guide. Through the worm gear transmission of the drive mechanism, the gear meshes with the teeth of the turntable, which can smoothly convert the rotation of the handwheel into the precise rotation of the turntable, realizing fine angle adjustment. At the same time, the self-locking characteristics of the worm gear prevent the turntable from deviating during measurement, ensuring angle stability. Meanwhile, the anti-slip texture of the handwheel and the speed reduction and torque increase effect of the worm gear transmission reduce the operating force and difficulty, simplify the adjustment process, and effectively improve the accuracy and efficiency of guide angle adjustment.

[0014] 2. This utility model provides an oral surgery guide plate angle measuring device. The axial movement of the slide rod is restricted by the sleeve of the telescopic mechanism. With the continuous tension of the tension spring on the limiting plate, the arc plate is tightly attached to the surface of the guide plate, eliminating the fitting gap to ensure accurate angle transmission. The telescopicity of the slide rod and the elastic adjustment of the tension spring can adapt to guide plates of different sizes and curvatures, enhancing the versatility of the device. The limiting plate can also prevent the slide rod from falling out, extending the service life of the device and further improving the reliability of measurement. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the turntable structure of this utility model; Figure 3 This is a schematic diagram of the scale structure of this utility model; Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model; Figure 5 This is a schematic diagram of the telescopic mechanism of this utility model.

[0016] In the diagram: 1. Base; 2. Connecting plate; 3. Dial; 4. Turntable; 5. Drive mechanism; 51. Cover plate; 52. Shaft; 53. Worm gear; 54. Gear; 55. Worm; 56. Handwheel; 6. Carrying tray; 7. Telescopic mechanism; 71. Sleeve; 72. Slide rod; 73. Limiting plate; 74. Tension spring; 8. Arc plate; 9. Pointer. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1 - Figure 5As shown, an oral surgery guide angle measuring device includes a base 1, which provides stable support for the entire device, preventing angle measurement deviations caused by device shaking during surgery, and serves as the mounting base for all components. A connecting plate 2 is disposed above the base 1, which stably connects the base 1 and the dial 3, ensuring that the dial 3 is always in a horizontal working position, providing a reference plane for angle readings. The dial 3 is disposed above the connecting plate 2, and the scale on the upper surface of the dial 3 is evenly distributed in an arc shape from 0° to 270°, with the smallest scale value reaching 1°, providing a precise reference for the angle indication of the pointer 9, facilitating intuitive reading of measurement data by medical personnel. A turntable 4 is disposed between the base 1 and the dial 3, and the turntable 4 can rotate around the central axis of the base 1, synchronously driving the internal telescopic mechanism 7, the arc plate 8, and the pointer 9 to rotate. This system enables multi-angle measurement and adjustment of the surgical guide on the tray 6. The tray 6 is located in the middle of the base 1 and is used to place the oral surgical guide to be measured. The origin above it is the initial positioning reference for the guide, ensuring that the guide is fixed in position during measurement and avoiding displacement that affects accuracy. The turntable 4 is equipped with a telescopic mechanism 7. The telescopic mechanism 7 can adjust the distance between the arc plate 8 and the tray 6 according to the size of the guide, ensuring that the arc plate 8 fits tightly against the surface of the guide. The telescopic end of the telescopic mechanism 7 is equipped with an arc plate 8. The concave surface of the arc plate 8 is adapted to the arc surface of the guide. By fitting together, the pointer 9 moves synchronously, so that the angle indicated by the pointer 9 is consistent with the actual angle of the guide. The concave surface of the arc plate 8 is equipped with a pointer 9, which is used to accurately indicate the current angle of the guide and complete the angle reading in conjunction with the scale 3. The upper surface of the dial 3 is marked with graduations, which provide numerical references for angle measurement. Different angle graduation lines are clearly marked, making it easy for medical staff to quickly identify the angle value corresponding to the pointer 9. An origin is set above the tray 6, which serves as the initial positioning point for the guide plate installation, ensuring that the starting position of the guide plate is consistent for each measurement and reducing positioning errors. A drive mechanism 5 is set at the lower part of the dial 3. The drive mechanism 5 provides power for the rotation of the turntable 4, realizing active adjustment and precise control of the angle. The drive mechanism 5 drives the turntable 4 to rotate, and through power transmission, the turntable 4 rotates smoothly, thereby adjusting the relative angle between the guide plate and the pointer 9 to meet different measurement needs.

[0019] like Figure 5As shown, the telescopic mechanism 7 includes a sleeve 71, which is the fixed base of the telescopic mechanism 7. It is used to accommodate the slide rod 72 and restrict its sliding direction, ensuring that the slide rod 72 only extends and retracts along the axial direction and avoiding lateral displacement. The sleeve 71 is set inside the turntable 4, and the slide rod 72 is set inside the sleeve 71. The slide rod 72 can slide along the inside of the sleeve 71. The side away from the turntable 4 is connected to the arc plate 8, which is used to drive the arc plate 8 to move closer to or away from the loading tray 6 and adapt to guide plates of different sizes. The side of the slide rod 72 away from the turntable 4 is connected to the concave surface of the arc plate 8. A limit plate 73 is set on the side of the slide rod 72 away from the arc plate 8. The limit plate 73 is used to limit the maximum extension distance of the slide rod 72, prevent the slide rod 72 from coming out of the sleeve 71, and at the same time provide a fixed support point for the tension spring 74.

[0020] like Figure 5 As shown, a tension spring 74 is provided on the side of the limiting plate 73 away from the slide rod 72. The tension spring 74 has an elastic reset function. When the arc plate 8 moves away from the guide plate due to external force, the tension spring 74 is stretched and generates a rebound force. After the external force disappears, the slide rod 72 can be pulled to reset, so that the arc plate 8 fits tightly against the guide plate. The end of the tension spring 74 away from the limiting plate 73 is installed inside the sleeve 71.

[0021] like Figure 4 As shown, the drive mechanism 5 includes a rotating shaft 52, which is the transmission core of the drive mechanism. The lower end is rotatably connected to the base 1, and the upper end is connected to the worm gear 53. It can drive the gear 54 to rotate under the drive of the worm 55. The rotating shaft 52 is set on the upper part of the base 1. The gear 54 is set on the outer periphery of the rotating shaft 52. The gear 54 transmits the rotational power of the rotating shaft 52 to the turntable 4 by meshing with the inner teeth of the turntable 4, so as to realize the smooth rotation of the turntable 4. The gear transmission has high precision and reduces the angle adjustment error. The inner side of the turntable 4 is set with teeth, and the gear 54 meshes with the inner side of the turntable 4.

[0022] like Figure 3 and Figure 4 As shown, a worm gear 53 is provided on the upper part of the rotating shaft 52. The worm gear 53 and the worm 55 constitute a worm gear transmission, which has a self-locking function to prevent the turntable 4 from rotating on its own during measurement. At the same time, it converts the horizontal rotation of the worm 55 into the vertical rotation of the rotating shaft 52, changing the direction of power. The dial 3 is provided with a worm 55 inside, which meshes with the worm gear 53. The worm gear 53 is driven to rotate by the handwheel 56. The worm gear transmission has a speed reduction and torque increase effect, making the adjustment more effortless and precise. The worm 55 and the worm gear 53 are meshed.

[0023] like Figure 4As shown, a handwheel 56 is provided at the end of the worm gear 55 away from the worm wheel 53. The handwheel 56 provides an operating component for medical staff. The outer circumference is provided with anti-slip texture to prevent slippage and facilitate manual fine adjustment of the rotation angle of the turntable 4. A cover plate 51 is provided on the upper part of the dial 3. The cover plate 51 is used to cover the upper opening of the dial 3, protect the internal worm wheel 53 and worm gear 55 from contamination, and at the same time provide rotational support for the rotating shaft 52 to ensure its rotational stability. The rotating shaft 52 is located at the lower part of the cover plate 51.

[0024] like Figure 1 As shown, pointer 9 is made of transparent acrylic material, which can avoid obscuring the scale on the dial 3 and ensure clear reading. A pointer guide is set at the center line of pointer 9, which can accurately align with the scale line of dial 3, reduce reading deviation, and improve the accuracy of angle measurement.

[0025] The working principle of this utility model is as follows: First, the surgical guide plate to be measured is placed on the carrier plate 6, and the reference mark of the guide plate is aligned with the origin above the carrier plate 6 to complete the initial positioning. Then, the arc plate 8 is pulled to make the slide rod 72 slide along the sleeve 71 of the telescopic mechanism 7 and stretch the tension spring 74. During this process, the limiting plate 73 prevents the slide rod 72 from falling out of the sleeve 71. After the arc plate 8 is released, the tension spring 74 returns to its original position and drives the arc plate 8 to fit tightly against the guide plate. During adjustment, the handwheel 56 is turned to drive the worm 55 of the drive mechanism 5. The worm 55 meshes with the worm wheel 53 to transmit power to the rotating shaft 52. The outer peripheral gear 54 of the rotating shaft 52 meshes with the inner teeth of the turntable 4, driving the turntable 4 to rotate smoothly around the base 1. At the same time, the self-locking characteristics of the worm wheel 53 and the worm 55 can prevent the turntable 4 from shifting on its own during the measurement process. The turntable 4 synchronously drives the telescopic mechanism 7, the arc plate 8 and the pointer 9 to rotate. During measurement, the guide plate angle is read by aligning the center line of pointer 9 with the precise scale of dial 3. If there is a deviation, the handwheel 56 can be finely adjusted for calibration.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oral surgery guide angle measuring device, comprising a base (1), characterized in that: A connecting plate (2) is provided above the base (1), a scale (3) is provided above the connecting plate (2), a turntable (4) is provided between the base (1) and the scale (3), a loading plate (6) is provided in the middle of the base (1), a telescopic mechanism (7) is provided inside the turntable (4), an arc plate (8) is provided at the telescopic end of the telescopic mechanism (7), and a pointer (9) is provided on the concave surface of the arc plate (8). The upper surface of the dial (3) is provided with a scale, the origin is provided above the tray (6), and the lower part of the dial (3) is provided with a drive mechanism (5), which drives the turntable (4) to rotate.

2. The oral surgery guide angle measuring device according to claim 1, characterized in that: The telescopic mechanism (7) includes a sleeve (71) which is located inside the turntable (4). A slide rod (72) is provided inside the sleeve (71). The side of the slide rod (72) away from the turntable (4) is connected to the concave surface of the arc plate (8). A limit plate (73) is provided on the side of the slide rod (72) away from the arc plate (8).

3. The oral surgery guide angle measuring device according to claim 2, characterized in that: A tension spring (74) is provided on the side of the limiting plate (73) away from the slide bar (72), and the end of the tension spring (74) away from the limiting plate (73) is installed inside the sleeve (71).

4. The oral surgery guide angle measuring device according to claim 1, characterized in that: The drive mechanism (5) includes a rotating shaft (52), which is located on the upper part of the base (1). A gear (54) is provided on the outer periphery of the rotating shaft (52), and teeth are provided on the inner side of the turntable (4). The gear (54) meshes with the inner side of the turntable (4).

5. The oral surgery guide angle measuring device according to claim 4, characterized in that: The upper part of the rotating shaft (52) is provided with a worm gear (53), and the inside of the dial (3) is provided with a worm (55), which meshes with the worm gear (53).

6. The oral surgery guide angle measuring device according to claim 5, characterized in that: A handwheel (56) is provided at the end of the worm gear (55) away from the worm wheel (53), a cover plate (51) is provided on the upper part of the dial (3), and the rotating shaft (52) is provided on the lower part of the cover plate (51).

7. The oral surgery guide angle measuring device according to claim 1, characterized in that: The pointer (9) is made of transparent acrylic material, and a pointer guide line is provided at the center line of the pointer (9).

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