A device for measuring screwdriver torque

Abstract

This utility model relates to the field of screwdriver torque measurement technology, and in particular to an instrument for measuring screwdriver torque. It includes a base with a semi-cylindrical groove in the middle. A horizontal bolt hole is formed in the center of the semi-cylindrical groove, and a fixing bolt is rotatably installed in the first horizontal bolt hole. A hemispherical bracket is mounted above the semi-cylindrical groove, and a second horizontal bolt hole is formed in the center of the hemispherical bracket. A torque sensor body is connected to the upper surface of the hemispherical bracket. An implant base is mounted above the measuring end of the torque sensor body via a coupling. The implant base has an internally threaded cylindrical hole in the center. A simulated head mold is also mounted above the base. This utility model allows adjustment of the angle and direction of the implant base, thereby simulating the intraoral environment to measure the torque of a hand-tightening screwdriver at different angles and directions, thus guiding more precise clinical operations.

Description

Technical Field

[0001] This utility model relates to the technical field of measuring screwdriver torque, and more particularly to an instrument for measuring screwdriver torque. Background Technology

[0002] Many surgeons frequently use hand screwdrivers to tighten cover screws, healing abutments, or transfer rods during primary and secondary implant surgeries. Most surgeons are unaware of the appropriate torque they should apply when tightening with a hand screwdriver. Excessive or insufficient torque can loosen the connection between the implant and abutment, creating microgaps that allow bacterial colonization, abutment screw breakage, and deformation of the transfer rod, internal implant structure, or abutment screw structure—all mechanical or biological complications. Furthermore, the torque applied by each surgeon using a hand screwdriver varies considerably. Therefore, understanding the appropriate torque to apply with a hand screwdriver is crucial for minimizing intraoperative and postoperative complications during implant and reconstructive surgeries.

[0003] Hand screwdrivers are difficult to use intraorally, especially in posterior teeth. Implant beginners often struggle to position implant components properly or even experience slippage when using hand screwdrivers in the posterior tooth area. During primary implant placement or fitting, dentists frequently use torque wrenches. Repeated use and sterilization of torque wrenches often lead to metal fatigue, causing discrepancies between the displayed torque value and the actual torque.

[0004] Existing torque measuring instruments cannot adjust the angle and direction of the implant base. We need a device that simulates the intraoral environment to measure the torque of a hand-tightening screwdriver at different angles and directions, so as to guide more precise clinical operations. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing torque measuring instruments, such as the inability to adjust the angle and direction of the implant base, and to propose an instrument for measuring screwdriver torque.

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

[0007] Design an instrument for measuring screwdriver torque, including a base, characterized in that a semi-cylindrical groove is provided in the middle position of the base, and a horizontal bolt hole is provided in the middle opening of the semi-cylindrical groove, and a fixing bolt is rotatably installed in the horizontal bolt hole.

[0008] A hemispherical bracket is installed above the semi-cylindrical groove.

[0009] The hemispherical bracket has a horizontal bolt hole in the middle opening.

[0010] The upper surface of the hemispherical bracket is connected to a torque sensor body, and an implant base is installed above the measuring end of the torque sensor body via a coupling. The implant base has an internally threaded cylindrical hole in the middle.

[0011] A head mold is also fitted on top of the base.

[0012] Preferably, the cross-section of the semi-cylindrical groove is semi-circular.

[0013] Preferably, the simulated head mold is fitted and mounted on the base.

[0014] Preferably, the upper part of the hemispherical bracket is a cylinder, which facilitates the rotation of the hemispherical bracket to adjust a specific angle.

[0015] Preferably, the fixing bolts pass through the first transverse bolt hole and the second transverse bolt hole respectively to fix the hemispherical bracket on the semi-cylindrical groove.

[0016] The present invention provides an instrument for measuring screwdriver torque, which has the following advantages: by setting a hemispherical bracket and a semi-cylindrical groove, the present invention can adjust the angle and direction of the implant base, thereby simulating the intraoral environment to measure the torque of a hand-tightening screwdriver at different angles and directions, and thereby guiding more precise clinical operations. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of a device for measuring screwdriver torque proposed in this utility model;

[0018] Figure 2 This is a top view schematic diagram of a device for measuring screwdriver torque proposed in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the base and semi-cylindrical groove of an instrument for measuring screwdriver torque proposed in this utility model.

[0020] In the diagram: 10, base; 11, semi-cylindrical groove; 12, horizontal bolt hole one; 13, fixing bolt; 20, hemispherical bracket; 21, horizontal bolt hole two; 30, torque sensor body; 40, coupling; 50, implant base; 51, internal threaded cylindrical hole; 60, imitation head mold. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-3 A device for measuring screwdriver torque includes a base 10, characterized in that a semi-cylindrical groove 11 is provided in the middle position of the base 10, a transverse bolt hole 12 is provided in the middle opening of the semi-cylindrical groove 11, and a fixing bolt 13 is rotatably installed in the transverse bolt hole 12.

[0023] A hemispherical bracket 20 is installed above the semi-cylindrical groove 11.

[0024] The hemispherical bracket 20 has a transverse bolt hole 21 in the middle opening.

[0025] The upper surface of the hemispherical bracket 20 is connected to a torque sensor body 30. Above the measuring end of the torque sensor body 30, an implant base 50 is installed via a coupling 40. The implant base 50 has an internally threaded cylindrical hole 51 in the middle.

[0026] A head mold 60 is also fitted and installed on top of the base 10.

[0027] As an optimized solution in this embodiment, the cross-section of the semi-cylindrical groove 11 is semi-circular.

[0028] As an optimized solution in this embodiment, the simulated head mold 60 is fitted and installed on the base 10.

[0029] As an optimized solution in this embodiment, the upper part of the hemispherical bracket 20 is a cylinder, which facilitates the hemispherical bracket 20 to rotate back and forth to adjust a specific angle.

[0030] As an optimized solution of this embodiment, the fixing bolt 13 passes through the first transverse bolt hole 12 and the second transverse bolt hole 21 respectively to fix the hemispherical bracket 20 on the semi-cylindrical groove 11.

[0031] The overall workflow of this utility model is as follows:

[0032] First, adjust and fix the angle and position of the base 10 inside the machine. Then, insert the hemispherical bracket 20 into the semi-cylindrical groove 11, align the first horizontal bolt hole 12 with the second horizontal bolt hole 21, adjust the angle of the hemispherical bracket 20, and screw in the fixing bolt 13 horizontally, passing through the first horizontal bolt hole 12 and the second horizontal bolt hole 21, to fix the hemispherical bracket 20 at a specific angle in the semi-cylindrical groove 11. Above the measuring end of the torque sensor body 30 on the hemispherical bracket 20, the implant base 50 is installed through the coupling 40.

[0033] The operator screws the external implant into the implant base 50 mm, and rotates the implant with an external wrench to obtain the torque value on the torque sensor.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An instrument for measuring screwdriver torque, comprising a base, characterized in that, A semi-cylindrical groove is provided in the middle of the base, and a horizontal bolt hole is provided in the middle opening of the semi-cylindrical groove. A fixing bolt is rotatably installed in the horizontal bolt hole. A hemispherical bracket is installed above the semi-cylindrical groove. The hemispherical bracket has a horizontal bolt hole in the middle opening. The upper surface of the hemispherical bracket is connected to a torque sensor body, and an implant base is installed above the measuring end of the torque sensor body via a coupling. The implant base has an internally threaded cylindrical hole in the middle. A head mold is also fitted on top of the base.

2. The instrument for measuring screwdriver torque according to claim 1, characterized in that, The cross-section of the semi-cylindrical groove is semi-circular.

3. The instrument for measuring screwdriver torque according to claim 1, characterized in that, The simulated head mold is mounted on the base.

4. The instrument for measuring screwdriver torque according to claim 1, characterized in that, The upper part of the hemispherical bracket is a cylinder, which facilitates the rotation of the hemispherical bracket to adjust a specific angle.

5. The instrument for measuring screwdriver torque according to claim 1, characterized in that, The fixing bolts pass through the first and second transverse bolt holes respectively to fix the hemispherical bracket on the semi-cylindrical groove.

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