Depth and angle integrated measuring scale
By designing an integrated depth and angle measuring ruler, which combines angle and depth measuring segments, the problem of the inability of parallel rods to calibrate angle deviations in real time was solved, enabling rapid and accurate depth and angle measurements in dental implantology, and improving the precision and efficiency of cavity preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU KANG DE TAI DENTAL MEDICAL TECH CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-15
AI Technical Summary
In the prior art, parallel rods cannot provide an accurate reference for measuring deviation when measuring dental implant preparation, and cannot measure the offset angle. The prior art cannot calibrate the angle deviation in real time, which makes it difficult to calibrate the preparation direction.
A depth and angle integrated measuring ruler was designed, which combines an angle measuring section and a depth measuring section. The connection of the two sections through a spherical joint enables flexible measurement, increases the flexibility and accuracy of the measurement, and provides a precise basis for angle calibration.
This technology enables rapid and accurate measurement of depth and angle during dental implantation, improving the precision and efficiency of cavity preparation and reducing the complexity of subsequent calibration.
Smart Images

Figure CN224235597U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dental implantology, and in particular relates to an integrated depth and angle measuring ruler. Background Technology
[0002] Before implant placement, a dental drill is used to prepare the cavity inside the mouth. Because this is done handheld, the cavity direction may slightly deviate from the expected direction. The cavity direction directly determines the final implant placement. A parallel rod is used to verify the quality of the cavity preparation. Traditionally, after two drilling operations, the parallel rod is inserted into the hole to observe whether the current hole depth matches the expectation, whether the end is facing correctly, and whether there is any deviation from the expected direction. This can be visually identified, and any deviation can be corrected in subsequent drilling operations to ensure the accuracy of the cavity direction. The parallel rod has a relatively simple structure, used only to estimate the cavity depth and verify the cavity direction. If the cavity direction deviates from the expectation, the traditional parallel rod lacks a reference point to measure the offset angle, requiring calculation of the angle for later calibration, which is cumbersome. Utility Model Content
[0003] In view of this, the present invention aims to propose an integrated depth and angle measuring ruler to solve the problem that when using parallel rods to prepare holes, there is no reference for measuring the offset angle, and calculating the angle for subsequent calibration is quite troublesome.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] A depth and angle integrated measuring ruler includes an angle measuring section, a spherical joint, and a depth measuring section. The upper part of the spherical joint is fixedly connected to the angle measuring section, and the lower part is rotatably connected to the head of the depth measuring section. The lower part of the spherical joint does not interfere with the depth measuring section.
[0006] Furthermore, the spherical pair includes an integral body, which is spherical in shape, and an upper ring and a lower ring are formed on the upper and lower sides of the body, respectively. The inner wall of the upper ring is provided with a thread for connecting the angle measuring section, and the lower ring is used to fit the depth measuring section, and the depth measuring section can rotate at an angle inside the lower ring.
[0007] Furthermore, a ring platform is formed above the main body.
[0008] Furthermore, the ring platform is located above the upper ring, and the inner diameter of the ring platform is larger than the inner diameter of the upper ring, so that the angle measuring section can be easily assembled into the interior of the spherical pair.
[0009] Furthermore, an arc-shaped surface is formed on the lower part of the body.
[0010] Furthermore, the arc-shaped surface is located below the lower ring, and when the spherical pair and the depth measuring segment move relative to each other, the arc-shaped surface can prevent them from contacting each other.
[0011] Furthermore, the depth measuring segment package includes, from bottom to top, a ruler body, a step, and a head. The ruler body has several grooves; the step has a central through hole; and the head is a spherical structure for fitting inside the body and can rotate within the body.
[0012] Compared with existing technologies, the integrated depth and angle measuring ruler of this utility model has the following advantages:
[0013] (1) The integrated depth and angle measuring ruler of this utility model has the functions of measuring depth and angle. The introduction of the spherical pair greatly increases the flexibility of measurement. The entire angle measuring section of the measuring ruler can be rotated without difference.
[0014] (2) The integrated depth and angle measuring ruler of this utility model has a groove in the depth measuring section, which increases the convenience of subsequent angle measurement.
[0015] (3) The integrated depth and angle measuring ruler described in this utility model greatly enhances the flexibility and accuracy of angle measurement. The original structure only roughly estimates the deviation in orientation and angle. With the improved structure, the deviation in orientation and angle can be determined immediately, providing a more accurate basis for subsequent orientation calibration. Attached Figure Description
[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0017] Figure 1 This is a schematic diagram of the integrated depth and angle measuring ruler described in an embodiment of the present utility model;
[0018] Figure 2 This is a cross-sectional view of the spherical pair described in an embodiment of the present invention;
[0019] Figure 3 This is a cross-sectional view of the depth measurement section described in an embodiment of the present invention;
[0020] Figure 4 This is a schematic diagram of the actual measurement state of the integrated depth and angle measuring ruler described in this embodiment of the present invention.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1-Angle measuring section; 2-Spherical pair; 21-Body; 22-Horizontal plane; 23-Ring platform; 24-Upper ring; 25-Lower ring; 26-Arc surface; 3-Depth measuring section; 31-Scale body; 32-Groove; 33-Step; 34-Central through hole; 35-Head. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] A depth and angle integrated measuring ruler, such as Figures 1 to 4 As shown, it includes an angle measuring section 1, a spherical joint 2, and a depth measuring section 3. The upper part of the spherical joint 2 is fixedly connected to the angle measuring section 1, and the lower part is rotatably connected to the head 34 of the depth measuring section 3. There is no interference between the lower part of the spherical joint 2 and the depth measuring section 3.
[0028] The spherical pair 2 includes an integral body 21, a horizontal surface 22, a ring platform 23, an upper ring 24, a lower ring 25, and an arc-shaped surface 26. The body 21 is a spherical structure, and the upper and lower sides of the body 21 respectively form an upper ring 24 and a lower ring 25. The inner wall of the upper ring 24 is provided with a thread for connecting the angle measuring section 1. The lower ring 25 is used to fit the depth measuring section 3, and the depth measuring section 3 can rotate at an angle inside the lower ring 25.
[0029] A ring platform 23 is also formed above the main body 21. The ring platform 23 is located above the upper ring 24, and the inner diameter of the ring platform 23 is larger than the inner diameter of the upper ring 24, so that the angle measuring section 1 can be easily assembled into the interior of the spherical pair 2.
[0030] An arc-shaped surface 26 is also formed below the main body 21. The arc-shaped surface 26 is located below the lower ring 25. When the spherical sub-pair 2 and the depth measuring section 3 move relative to each other, the arc-shaped surface 26 can prevent them from contacting each other and will not create resistance to the depth measuring section 3.
[0031] The depth measuring section 3, arranged from bottom to top, includes a ruler body 31, a step 33, and a head 35. The ruler body 31 has several grooves 32, which serve as scale lines for easy reference of the drilling depth. The step 33 has a central through hole 34 for threading a wire to prevent the measuring ruler from falling into the patient's mouth. The head 35 is a spherical structure used to fit inside the body 21, and the head 35 can rotate within the body 21.
[0032] The method of using an integrated depth and angle measuring ruler is as follows:
[0033] After the dental drill completes one or two drilling operations, a thin thread is passed through the central through-hole 34 of the depth measuring section 3, and the depth measuring section 3 is inserted into the drill hole, so that the groove 32 of the depth measuring section 3 is consistent with the length of the drill body at each stage. The depth of the current drill hole is determined by the position of the groove 32 corresponding to the bone plane. The angle measuring section 1 is always kept in a vertical position. The measuring ruler is taken out and the angle formed by the depth measuring section 3 and the angle measuring section 1 is measured. If they are in a straight line, the preparation hole has achieved the expected effect. If they are at a certain angle, the subsequent drilling will be calibrated according to that angle.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A depth and angle integrated measuring ruler, characterized in that: It includes an angle measuring section, a spherical joint, and a depth measuring section. The upper part of the spherical joint is fixedly connected to the angle measuring section, and the lower part is rotatably connected to the head of the depth measuring section. There is no interference between the lower part of the spherical joint and the depth measuring section.
2. The integrated depth and angle measuring ruler according to claim 1, characterized in that: The spherical pair includes a body with an integral structure. The body is spherical and has an upper ring and a lower ring on its upper and lower sides, respectively. The inner wall of the upper ring is provided with threads for connecting the angle measuring section. The lower ring is used to fit the depth measuring section, and the depth measuring section can rotate at an angle inside the lower ring.
3. The integrated depth and angle measuring ruler according to claim 2, characterized in that: A ring platform is also formed above the main body.
4. The integrated depth and angle measuring ruler according to claim 3, characterized in that: The ring platform is located above the upper ring, and the inner diameter of the ring platform is larger than that of the upper ring, which allows the angle measuring section to be easily assembled into the interior of the spherical pair.
5. The integrated depth and angle measuring ruler according to claim 2, characterized in that: An arc-shaped surface is also formed at the bottom of the main body.
6. The integrated depth and angle measuring ruler according to claim 5, characterized in that: The curved surface is located below the lower ring, and when the spherical pair and the depth measuring segment move relative to each other, the curved surface can prevent them from contacting each other.
7. The integrated depth and angle measuring ruler according to claim 1, characterized in that: The depth measurement section consists of a ruler, a step, and a head, arranged sequentially from bottom to top. The ruler has several grooves; the step has a central through hole; and the head is a spherical structure that fits inside the body and can rotate within the body.