Bone plate thickness detection device and detection method

Abstract

The present invention belongs to the field of medical device detection technology, and specifically discloses a bone plate thickness detection device and detection method. The bone plate thickness detection device is used to detect the thickness of an arc-shaped bone plate. The bone plate thickness detection device includes a clamping assembly and a detection assembly, and the clamping assembly is used to fix the bone plate. The detection assembly includes a measuring component, and the measuring component includes a measuring drive and two measuring heads. The measuring drive is configured to drive the two measuring heads toward or away from each other. One of the two opposing inner side surfaces of the two measuring heads is provided with an abutment block that can contact the most concave position of the arc-shaped concave surface of the bone plate. The present invention can improve the detection efficiency and detection accuracy of bone plates.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical device detection, and in particular relates to a bone plate thickness detection device and a detection method. Background Art

[0002] As orthopedic implants, bone plates require critical dimensional accuracy during fracture fixation and treatment, directly impacting surgical outcomes, bone healing quality, and the patient's recovery process. Therefore, after production, bone plates undergo quality inspections across all dimensions to ensure they meet design requirements.

[0003] In the related art, the thickness of the bone plate is usually detected manually, which has low detection efficiency and may lead to inaccurate detection results due to human factors. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, an embodiment of the present invention provides a bone plate thickness detection device that can improve the detection efficiency and detection accuracy of bone plates.

[0005] The invention also proposes a bone plate thickness detection method.

[0006] A bone plate thickness detection device according to an embodiment of the present invention is used to detect the thickness of an arc-shaped bone plate, and includes a clamping assembly and a detection assembly, wherein the clamping assembly is used to fix the bone plate; the detection assembly includes a measuring component, which includes a measuring drive and two measuring heads, and the measuring drive is configured to drive the two measuring heads toward or away from each other, one of the two opposing inner side surfaces of the two measuring heads is provided with an abutment block that can contact the most concave position of the arc-shaped concave surface of the bone plate, and the other of the two opposing inner side surfaces of the two measuring heads is a plane, which is perpendicular to the moving direction of the measuring heads.

[0007] The bone plate thickness detection device in this embodiment can be used to detect both plate-shaped materials and curved materials. During the specific inspection, the bone plate is first clamped by the clamping assembly to fix the bone plate, and the bone plate is located between the two measuring heads. If the bone plate is an arc-shaped material, the measuring drive member is controlled to drive the two measuring heads closer to each other until the abutment block contacts the most concave position of the arc-shaped concave surface of the bone plate and the inner side surface of the measuring head without the abutment block is aligned with the opposite surface of the arc-shaped concave surface. The thickness W1 of the bone plate can be obtained by measuring the initial spacing S1 between the inner side surface of the measuring head without the abutment block and the abutment block and the sum of the distances moved by the two measuring heads, thereby achieving the measurement of the arc-shaped material; if the bone plate is a plate-shaped material, the measuring drive member is controlled to drive the two measuring heads closer to each other until the inner side surface of the measuring head without the abutment block is aligned with one side surface of the bone plate and the abutment block is aligned with the other side surface of the bone plate. The initial spacing S2 between the inner side surface of the measuring head without the abutment block and the abutment block and the sum of the distances moved by the two measuring heads Y2 are measured, and the thickness W2 of the bone plate is obtained by subtracting Y2 from S2, thereby achieving the measurement of the plate-shaped material. In summary, in this embodiment, the bone plate is fixed by the clamping assembly, and the two measuring heads are driven by the measuring drive to move to measure the thickness of the bone plate, which is conducive to improving the detection accuracy and efficiency.

[0008] In this embodiment, the abutment block is configured to be in point contact or line contact with the arc-shaped concave surface of the bone plate;

[0009] And / or, the detection component also includes a first movable component, the first movable component includes a first linear drive component, a second linear drive component and a third linear drive component, the first linear drive component has an output end movable along the Y axis; the second linear drive component is arranged at the output end of the first linear drive component, the second linear drive component has an output end movable along the X axis; the third linear drive component is arranged at the output end of the second linear drive component, the third linear drive component has an output end movable along the Z axis; the third linear drive component is configured to drive the measuring component to move along the Z axis, and the X axis, Y axis and Z axis form an angle with each other.

[0010] In this embodiment, the abutment block includes a raised side edge, and the side edge is parallel to the inner side surface of the other measuring head.

[0011] In this embodiment, the first linear drive member includes a first guide rail, a first slider, a first transmission mechanism, and a first drive motor. The first guide rail extends along the Y-axis direction. The first guide rail is provided with a first drive motor and a first transmission mechanism. The first drive motor is connected to an input end of the first transmission mechanism, and an output end of the first transmission mechanism is connected to the first slider. The first slider can be guided by the first guide rail to slide along the Y-axis.

[0012] The second linear drive member includes a second guide rail, a second slider, a second transmission mechanism, and a second drive motor. The second guide rail is provided on the first slider and extends along the X-axis. The second guide rail is provided with a second drive motor and a second transmission mechanism. The second drive motor is connected to the input end of the second transmission mechanism, and the output end of the second transmission mechanism is connected to the second slider. The second slider can be guided by the second guide rail to slide along the X-axis.

[0013] The third linear drive component includes a third guide rail, a third slider, a third transmission mechanism and a third drive motor. The third guide rail is arranged on the second slider. The third guide rail extends along the Z-axis direction. The third guide rail is provided with a third drive motor and a third transmission mechanism. The third drive motor is connected to the input end of the third transmission mechanism, and the output end of the third transmission mechanism is connected to the third slider. The third slider can be guided by the second guide rail to slide along the Z-axis.

[0014] In this embodiment, the clamping assembly includes a fixing component, and the fixing component includes a clamping driver and two clamping jaws. The clamping driver is used to control the two clamping jaws to clamp the bone plate.

[0015] In this embodiment, the clamping assembly also includes a first positioning member, which is arranged on the side of the clamping drive member to support the bone plate in the thickness direction of the bone plate; and / or, the clamping assembly also includes a second positioning member, which is arranged on the side of the clamping drive member to abut one end of the bone plate in the length direction of the bone plate.

[0016] In this embodiment, the clamping assembly further comprises an adjusting component, the fixing component is provided at an output end of the adjusting component, and the adjusting component is configured to adjust an angle of the fixing component to adjust an angle of the bone plate;

[0017] And / or, the clamping assembly further includes a second moving component, and the second moving component drives the fixed component to move.

[0018] In this embodiment, the adjustment component includes a first rotary drive member and a second rotary drive member, the first rotary drive member having an output end rotatable around an axis A; the second rotary drive member is provided at the output end of the first rotary drive member, the second rotary drive member having an output end rotatable around an axis B perpendicular to the axis A, and the fixing component is provided at the output end of the second rotary drive member;

[0019] And / or, the second movable component includes a fourth linear drive component and a fifth linear drive component, the fourth linear drive component has an output end movable along the Y-axis; the fifth linear drive component is arranged at the output end of the fourth linear drive component, the fifth linear drive component has an output end movable along the X-axis, and the fifth linear drive component is configured to drive the fixed component to move along the X-axis, and the X-axis and the Y-axis form an angle with each other.

[0020] The bone plate thickness detection method implemented by the present invention adopts the above-mentioned detection device, and the detection method includes the following steps: fixing the bone plate to the clamping assembly and positioning the bone plate in a preset position; setting a predetermined most concave position of the arc-shaped concave surface in the bone plate as an initial detection position; controlling the abutment block to be located at a first original position on the side of the arc-shaped concave surface of the initial detection position of the bone plate, controlling the inner side surface of the measuring head without the abutment block to be located at a second original position on the side of the arc-shaped convex surface of the initial detection position of the bone plate, and calculating an initial spacing S between the first original position and the second original position; controlling the measuring head with the abutment block to abut the most concave position of the initial detection position of the bone plate, controlling the inner side surface of the other measuring head to fit the opposite surface of the arc-shaped concave surface of the bone plate, and obtaining the sum Y of the moving distances of the two measuring heads; calculating the thickness W=SY of the bone plate.

[0021] In this embodiment, the measuring head having the abutment block abuts against the most concave position of the initial detection position of the bone plate, and also includes: the arcuate concave surface is a cylindrical surface, and the side edge of the abutment block abuts against the generatrix of the most concave position of the arcuate concave surface of the bone plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the bone plate thickness detection device according to the first embodiment of the present invention from a first viewing angle.

[0023] Figure 2 It is a three-dimensional diagram of the measuring component of the first embodiment of the present invention.

[0024] Figure 3 It is a structural schematic diagram of the bone plate thickness detection device according to the first embodiment of the present invention from a second viewing angle.

[0025] Figure 4 yes Figure 3 Enlarged view of point I in the middle.

[0026] Figure 5 This is a flow chart of a bone plate thickness detection method according to a second embodiment of the present invention.

[0027] Figure 6 This is a flow chart of a bone plate thickness detection method according to a third embodiment of the present invention.

[0028] Reference numerals:

[0029] 100, bone plate;

[0030] 1. Clamping assembly; 11. Fixing member; 111. Clamping drive member; 112a. First clamping jaw; 112b. Second clamping jaw; 12. Adjusting member; 121. First rotary drive member; 1211. First power member; 1212. First mounting platform; 122. Second rotary drive member; 1221. Second power member; 1222. Second mounting platform; 13. Second movable member; 131. Fourth linear drive member; 132. Fifth linear drive member; 14. First positioning member; 15. Second positioning member.

[0031] 2. Detection assembly; 21. Measuring component; 211. Measuring drive; 212a. First measuring head; 212b. Second measuring head; 213. Abutment block; 2131. Side edge; 22. First moving component; 221. First linear drive; 222. Second linear drive; 223. Third linear drive. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] Example 1

[0034] In this embodiment, if Figure 1 and Figure 2 As shown, the bone plate thickness detection device includes a clamping assembly 1 and a detection assembly 2. The clamping assembly 1 is used to fix the bone plate 100. The detection assembly 2 includes a measuring component 21, which includes a measuring drive 211, a first measuring head 212a, and a second measuring head 212b. The measuring drive 211 is configured to drive the first measuring head 212a and the second measuring head 212b toward or away from each other. One of the two opposing inner side surfaces of the first and second measuring heads 212a, 212b is provided with an abutment block 213 that can contact the most concave portion of the curved concave surface of the bone plate 100. The other of the two opposing inner side surfaces of the first and second measuring heads 212a, 212b is a flat surface perpendicular to the direction of movement of the first and second measuring heads 212a, 212b. In this embodiment, the abutment block 213 is provided on the first measuring head 212a, while the abutment block 213 is not provided on the second measuring head 212b.

[0035] During specific measurement, the measuring component 21 may be used to perform multiple measurements along the length direction of the bone plate 100 and calculate an average value of the measurements to improve the accuracy of the measurement result of the thickness of the bone plate 100 .

[0036] The plate shape of the bone plate 100 includes an arc-shaped material with an arc-shaped plate surface and a plate-shaped material with a flat plate surface. The bone plate thickness detection device in this embodiment can detect both plate-shaped materials and arc-shaped materials. During the specific detection, the bone plate 100 is first clamped by the clamping assembly 1 to fix the bone plate 100, and the bone plate 100 is located between the first measuring head 212a and the second measuring head 212b. If the bone plate 100 is an arc-shaped material, the measuring drive member 211 is controlled to drive the first measuring head 212a and the second measuring head 212b to approach each other until the abutment block 213 contacts the most concave position of the arc-shaped concave surface of the bone plate 100 and the inner side surface of the second measuring head 212b fits with the opposite surface of the arc-shaped concave surface. The initial spacing S1 between the inner side surface of the second measuring head 212b and the abutment block 213 and the sum of the distances moved by the first measuring head 212a and the second measuring head 212b, Y1, can be measured. , the thickness W1 of the bone plate 100 is obtained by subtracting Y1 from S1, thereby achieving measurement of the curved material; if the bone plate 100 is a plate-shaped material, the measuring drive 211 is controlled to drive the first measuring head 212a and the second measuring head 212b to approach each other until the inner side surface of the second measuring head 212b is in contact with one side surface of the bone plate 100 and the abutment block 213 is in contact with the other side surface of the bone plate 100. By measuring the initial spacing S2 between the inner side surface of the second measuring head 212b and the abutment block 213 and the sum of the distances moved by the first measuring head 212a and the second measuring head 212b, Y2, the thickness W2 of the bone plate 100 is obtained by subtracting Y2 from S2, thereby achieving measurement of the plate-shaped material. In summary, this embodiment fixes the bone plate 100 by the clamping assembly 1, and then drives the first measuring head 212a and the second measuring head 212b to move by the measuring drive 211 to measure the thickness of the bone plate 100, which is conducive to improving the accuracy and efficiency of detection.

[0037] The detection device of this embodiment includes a controller, which is electrically connected to the clamping assembly 1 and the detection assembly 2 and can control the clamping assembly 1 to clamp the bone plate 100. The controller can also control the measurement driver 211 of the measuring component 21 in the detection assembly 2 to drive the first measurement head 212a and the second measurement head 212b toward or away from each other, thereby automating the detection process and improving detection efficiency and consistency.

[0038] In this embodiment, the inner side surface of the second measuring head 212 b is a plane, and the plane is perpendicular to the moving direction of the second measuring head 212 b.

[0039] It can be understood that the inner side surface of the second measuring head 212b, on which the abutment block 213 is not provided, is set as a plane. Since the plane is perpendicular to the moving direction of the second measuring head 212b, when the first measuring head 212a and the second measuring head 212b approach each other, the inner side surface of the second measuring head 212b can abut against the highest point of the convex surface of the arc-shaped bone plate 100, and the abutment block 213 can contact the most concave position of the arc-shaped concave surface of the bone plate 100. Therefore, through the cooperation of the plane of the inner side surface of the second measuring head 212b and the abutment block 213, the thickness of the bone plate 100 can be accurately measured.

[0040] In this embodiment, the abutment block 213 is configured to be in point contact or line contact with the arc-shaped concave surface of the bone plate 100 .

[0041] It should be noted that when the abutment block 213 is in point contact with the arcuate concave surface of the bone plate 100, the specific measurement point of the arcuate concave surface can be accurately located by the abutment block 213, thereby reducing the error caused by the excessive contact surface. When the abutment block 213 is in line contact with the arcuate concave surface of the bone plate 100, the pressure can be evenly distributed over a larger range, thereby helping to improve the stability of the measurement result. Whether the abutment block 213 is in point contact or line contact with the bone plate 100, the abutment block 213 can be in contact with the most concave position of the arcuate concave surface of the bone plate 100, and the specific contact mode can be selected as needed.

[0042] In this embodiment, if Figure 2 As shown, the abutting block 213 includes a protruding side edge 2131 , and the side edge 2131 is parallel to the inner side surface of the second measuring head 212 b.

[0043] For example, the abutment block 213 can be a triangular prism structure. During installation, one side surface of the abutment block 213 is connected to the inner side surface of the first measuring head 212a, and one edge of the triangular prism facing away from the first measuring head 212a serves as a side edge 2131 that contacts the arc-shaped concave surface of the bone plate 100. The side edge 2131 forms a linear contact with the arc-shaped concave surface of the bone plate 100.

[0044] It should be noted that the lateral edge 2131 is parallel to the inner side surface of the second measuring head 212b. When the inner side surfaces of the lateral edge 2131 and the second measuring head 212b both contact the bone plate 100, the distance between the lateral edge 2131 and the inner side surface of the second measuring head 212b is the thickness of the bone plate 100, which facilitates obtaining the measurement results. During measurement, the lateral edge 2131 can form a linear contact with the bone plate 100 to improve the accuracy of the measurement results.

[0045] In this embodiment, if Figure 1 and Figure 3As shown, the detection component 2 also includes a first movable component 22, and the first movable component 22 includes a first linear drive component 221, a second linear drive component 222 and a third linear drive component 223. The first linear drive component 221 has an output end that can move along the Y axis. The second linear drive component 222 is arranged at the output end of the first linear drive component 221, and the second linear drive component 222 has an output end that can move along the X axis. The third linear drive component 223 is arranged at the output end of the second linear drive component 222, and the third linear drive component 223 has an output end that can move along the Z axis; the third linear drive component 223 is configured to drive the measuring component 21 to move along the Z axis, and the X axis, Y axis and Z axis are at angles to each other. In this embodiment, the XX axis, Y axis and Z axis are perpendicular to each other.

[0046] The controller is electrically connected to the first linear drive member 221, the second linear drive member 222 and the third linear drive member 223, and controls the output ends of the first linear drive member 221, the second linear drive member 222 and the third linear drive member 223 to move along the Y-axis, X-axis and Z-axis directions respectively.

[0047] Specifically, the first linear drive member 221 is fixed to the base and can drive the second linear drive member 222 to move along the Y-axis. The second linear drive member 222 can drive the third linear drive member 223 and the measuring component 21 thereon to move along the Y-axis. The second linear drive member 222 can drive the third linear drive member 223 to move along the X-axis. The third linear drive member 223 can drive the measuring component 21 thereon to move along the X-axis. The third linear drive member 223 can drive the measuring component 21 to move along the Z-axis, thereby enabling the measuring component 21 to move in the Y, X, and Z directions. The first moving component 22 can then drive the measuring component 21 to accurately find the measurement position of the bone plate 100 clamped by the clamping assembly 1 for measurement.

[0048] In this embodiment, the first linear drive member 221 includes a first guide rail, a first slider, a first transmission mechanism, and a first drive motor. The first guide rail extends along the Y-axis direction. The first guide rail is provided with a first drive motor and a first transmission mechanism. The first drive motor is connected to the input end of the first transmission mechanism, and the output end of the first transmission mechanism is connected to the first slider. The first slider can be guided by the first guide rail to slide along the Y-axis. The second linear drive member 222 includes a second guide rail, a second slider, a second transmission mechanism, and a second drive motor. The second guide rail is provided on the first slider. The second guide rail extends along the X-axis direction. The second guide rail is provided with a second drive motor and a second transmission mechanism. The second drive motor is connected to the input end of the second transmission mechanism, and the output end of the second transmission mechanism is connected to the second slider. The second slider can be guided by the second guide rail to slide along the X-axis. The third linear drive member 223 includes a third guide rail, a third slider, a third transmission mechanism and a third drive motor. The third guide rail is arranged on the second slider. The third guide rail extends along the Z-axis direction. The third guide rail is provided with a third drive motor and a third transmission mechanism. The third drive motor is connected to the input end of the third transmission mechanism. The output end of the third transmission mechanism is connected to the third slider. The third slider can be guided by the second guide rail to slide along the Z-axis.

[0049] Specifically, a first guide rail is disposed on a base. Two first guide rails are provided, spaced apart and parallel to each other. A first slider is disposed on each of the first guide rails. The second linear drive member 222 is connected to both first sliders, thereby providing stable support for the second linear drive member 222 via the two first sliders. For example, the first transmission mechanism may include a first linkage rod and a belt transmission mechanism. The input shafts of the belt transmission mechanisms on the two first guide rails are connected via the first linkage rod to synchronize the operation of the belt transmission mechanisms on the two first guide rails. The first drive motor is connected to the input shaft of one of the belt transmission mechanisms. The specific structure, operating principle, and connection between the belt transmission mechanism, the first guide rail, the first slider, and the first drive motor are conventional in the art and will not be described in detail here. The specific configuration can be adapted as needed by those skilled in the art, and this is not intended to be limiting. The first drive motor may be a servo motor, which facilitates precise control of the displacement of the first slider. The second transmission mechanism may be a belt transmission mechanism. The connection between the belt transmission mechanism, the second guide rail, the second slider, and the second drive motor is conventional in the art and will not be described in detail here. The second drive motor may be a servo motor, which facilitates precise control of the displacement of the second slider. The third transmission mechanism may be a belt transmission mechanism, and the connection method between the belt transmission mechanism and the third guide rail, the third slider and the third drive motor is conventional prior art and will not be described in detail here.

[0050] When the measuring component 21 needs to be driven to move along the Y-axis, the first drive motor drives the first conveying mechanism to operate. The first conveying mechanism can drive the first slider to move along the first guide rail. The first slider can drive the measuring component 21 along the Y-axis via the second linear drive member 222 and the third linear drive member 223. When the measuring component 21 needs to be driven to move along the X-axis, the second drive motor drives the second conveying mechanism to operate. The second conveying mechanism can drive the second slider to move along the second guide rail. The second slider can drive the measuring component 21 along the X-axis via the third linear drive member 223. When the measuring component 21 needs to be driven to move along the Z-axis, the third drive motor drives the third conveying mechanism to operate. The third conveying mechanism can drive the third slider to move along the third guide rail. The third slider can drive the measuring component 21 along the Z-axis.

[0051] In this embodiment, if Figure 1 Figure 3 and Figure 4 As shown, the clamping assembly 1 includes a fixing component 11 , which includes a clamping driver 111 and a first clamping jaw 112 a and a second clamping jaw 112 b . The clamping driver 111 is used to control the first clamping jaw 112 a and the second clamping jaw 112 b to clamp the bone plate 100 .

[0052] For example, the clamping driver 111 may be a pneumatic cylinder that drives the first and second clamping jaws 112a, 112b to open and close, thereby improving response speed and simplifying the structure of the fixing member 11. The clamping driver 111 may also be a servo motor. Specifically, the clamping driver 111 is electrically connected to a controller, which controls the clamping driver 111 to move the first and second clamping jaws 112a, 112b toward or away from each other.

[0053] When the bone plate 100 needs to be fixed, the bone plate 100 is placed between the first clamping jaw 112a and the second clamping jaw 112b, and the clamping driver 111 drives the first clamping jaw 112a and the second clamping jaw 112b toward each other, thereby clamping and fixing the bone plate 100. When the bone plate 100 needs to be loosened, the clamping driver 111 drives the first clamping jaw 112a and the second clamping jaw 112b away from each other.

[0054] In this embodiment, if Figure 3 and Figure 4 As shown, the clamping assembly 1 further includes a first positioning member 14 , which is disposed on a side of the clamping driving member 111 to support the bone plate 100 in a thickness direction of the bone plate 100 .

[0055] For example, the first positioning member 14 includes two support plates, one located on either side of the fixing member 11, for supporting the bone plate 100. Furthermore, the support plates can be fixed to the second mounting platform 1222 of the adjustment member 12. Because the two support plates of the first positioning member 14 are located on either side of the fixing member 11, they provide support for both ends of the bone plate 100, allowing the bone plate 100 to be stably placed on the support plates. This prevents the bone plate 100 from shaking or tilting when the fixing member 11 is clamped and secured, potentially preventing it from being accurately clamped and affecting the accuracy of the test results.

[0056] The inner surfaces of the first jaw 112a and the second jaw 112b are parallel to each other, and the inner surfaces of the first jaw 112a and the second jaw 112b are perpendicular to the upper surface of the support plate. When the fixing component 11 clamps the bone plate 100, the bone plate 100 can be positioned from two mutually perpendicular directions, which are perpendicular to the inner surfaces of the first jaw 112a and the second jaw 112b and perpendicular to the upper surface of the support plate, respectively, to ensure positioning accuracy and positioning stability.

[0057] It is understandable that when the fixing component 11 fixes the bone plate 100, the bone plate 100 cannot be accurately positioned. By setting the first positioning member 14 to cooperate with the fixing component 11 to position the bone plate 100, the positioning accuracy of the bone plate 100 can be improved, which is conducive to improving the reliability of the thickness detection results of the bone plate 100.

[0058] In this embodiment, if Figure 3 and Figure 4 As shown, the clamping assembly 1 further includes a second positioning member 15 , which is disposed on a side of the clamping driving member 111 to abut against one end of the bone plate 100 in the length direction of the bone plate 100 .

[0059] For example, the second positioning member 15 includes a positioning plate, which is disposed on the side of the clamping drive member 111. Specifically, the positioning plate can be fixed to the output end of the adjustment component 12. Furthermore, the positioning plate can be fixed to the second mounting platform 1222. The positioning plate is disposed in a vertical direction and parallel to the support plate.

[0060] It is understood that by providing the second positioning member 15 and placing one end of the bone plate 100 along its length against the second positioning member 15, the bone plate 100 can be positioned along its length using the second positioning member 15. Furthermore, the second positioning member 15 can also be configured to be adjustable along the length of the bone plate 100. The adjustable positioning member allows for adjusting the position of the first and second clamping jaws 112a, 112b in gripping the bone plate 100, providing greater flexibility in gripping the bone plate 100 and facilitating thickness measurement at specific locations on the bone plate 100.

[0061] In this embodiment, if Figure 1 and Figure 2 As shown, the clamping assembly 1 further includes an adjusting component 12 . The fixing component 11 is disposed at an output end of the adjusting component 12 . The adjusting component 12 is configured to adjust the angle of the fixing component 11 to adjust the angle of the bone plate 100 .

[0062] For example, some bone plates 100 may be curved along their length, making it difficult for the measuring component 21 to measure the thickness of the bone plate 100. However, the adjusting component 12 can be provided to adjust the angle of the bone plate 100 secured by the fixing component 11, thereby facilitating adjustment of the bone plate 100 to an angle convenient for measurement by the measuring component 21. A controller is electrically connected to the adjusting component 12 to control the adjusting component 12 to adjust the angle of the fixing component 11.

[0063] In this embodiment, if Figure 1 and Figure 3 As shown, the adjustment component 12 includes a first rotary drive member 121 and a second rotary drive member 122. The first rotary drive member 121 has an output end that can rotate about an axis A. The second rotary drive member 122 is provided at the output end of the first rotary drive member 121. The second rotary drive member 122 has an output end that can rotate about an axis B that is perpendicular to the axis A. The fixing component 11 is provided at the output end of the second rotary drive member 122.

[0064] Specifically, if Figure 3 and Figure 4 As shown, the first rotary drive member 121 includes a first power member 1211 and a first mounting platform 1212. The first mounting platform 1212 is disposed at the output end of the first power member 1211. The second rotary drive member 122 includes a second power member 1221 and a second mounting platform 1222. The second power member 1221 is disposed on the first mounting platform 1212. The provision of the first mounting platform 1212 facilitates the installation of the second power member 1221. The second mounting platform 1222 is disposed at the output end of the second power member 1221, and the fixing component 11 is disposed on the second mounting platform 1222. The provision of the second mounting platform 1222 facilitates the installation of the fixing component 11. For example, both the first power member 1211 and the second power member 1221 can be servo motors, and the servo motors can be used to precisely adjust the angle of the bone plate 100 fixed by the fixing component 11.

[0065] It can be understood that the second rotary drive member 122 is arranged at the output end of the first rotary drive member 121. The first rotary drive member 121 can drive the second rotary drive member 122 and the fixed component 11 on the second rotary drive member 122 to rotate around the A axis. The second rotary drive member 122 can drive the fixed component 11 to rotate around the B axis perpendicular to the A axis, so that the bone plate 100 clamped by the fixed component can rotate around the A axis and the B axis, thereby allowing the bone plate 100 to be adjusted in different directions, which is convenient for measuring the bone plate 100.

[0066] In this embodiment, if Figure 1 and Figure 3 As shown, the clamping assembly 1 further includes a second moving component 13 , which drives the fixed component 11 to move.

[0067] The fixing component 11 can be directly mounted on the output end of the second movable component 13. Alternatively, the fixing component 11 can be mounted on the output end of the adjustment component 12, and the adjustment component 12 can be mounted on the output end of the second movable component 13. Both of the above fixing methods for the fixing component 11 can achieve movement driven by the second movable component 13. A controller is electrically connected to the second movable component 13 to control the second movable component 13 to drive the fixing component 11 to move, thereby driving the bone plate 100 secured by the fixing component 11 to move.

[0068] It is understood that by providing the second movable member 13 to drive the movement of the fixed member 11, the fixed member 11 can be moved to the loading position for installation of the bone plate 100, which can facilitate the operator's operation. When measuring the bone plate 100, the second movable member 13 can drive the bone plate 100 fixed by the fixed member 11 to move to the testing position, so that the measuring member 21 can measure the bone plate 100.

[0069] In this embodiment, if Figure 3 As shown, the second movable component 13 includes a fourth linear drive member 131 and a fifth linear drive member 132. The fourth linear drive member 131 has an output end that can move along the Y axis. The fifth linear drive member 132 is disposed at the output end of the fourth linear drive member 131 and has an output end that can move along the X axis. The coordinated action of the fourth linear drive member 131 and the fifth linear drive member 132 allows the second movable component 13 to drive the fixed component 11 to move along the X and Y axes within a certain range.

[0070] For example, Figure 3As shown, the fourth linear drive 131 includes a fourth guide rail, a fourth slider, a fourth transmission mechanism, and a fourth drive motor. The fourth guide rail extends along the Y-axis. The fourth guide rail is equipped with a fourth drive motor and a fourth transmission mechanism. The fourth drive motor is connected to the input end of the fourth transmission mechanism, and the output end of the fourth transmission mechanism is connected to the fourth slider. The fourth slider is guided by the fourth guide rail and can slide along the Y-axis. Two fourth guide rails are arranged in parallel and spaced apart, each with a fourth slider. The fifth linear drive 132 is connected to both fourth sliders to provide stable support for the fifth drive member via the fourth guide rails. The fourth drive motor can be a servo motor, which facilitates precise movement of the fixed component 11 along the Y-axis. The fourth transmission mechanism can include a second linkage rod and a belt transmission mechanism. The input shafts of the belt transmission mechanisms on the two fourth guide rails are connected by a second linkage rod to synchronize the operation of the belt transmission mechanisms on the two fourth guide rails. The fourth drive motor is connected to the input shaft of one of the belt transmission mechanisms. The specific structure and operating principle of the belt transmission mechanism are conventional in the art, and its specific configuration will not be described in detail here. When it is necessary to drive the fixed component 11 to move along the Y axis, the fourth transmission mechanism is driven by the fourth driving motor to operate, the fourth transmission mechanism can drive the fourth slider to move along the fourth guide rail, and the fourth slider can drive the fixed component 11 to move along the Y axis through the fifth linear drive component 132.

[0071] like Figure 3 As shown, the fifth linear drive member 132 includes a fifth guide rail, a fifth slider, a fifth transmission mechanism and a fifth drive motor. The fifth guide rail extends along the X direction. The fifth guide rail is provided with a fifth drive motor and a fifth transmission mechanism. The fifth drive motor is connected to the input end of the fifth transmission mechanism, and the output end of the fifth transmission mechanism is connected to the fifth slider. The fifth slider can be guided by the fifth guide rail to slide along the X-axis. The fifth drive motor can be a servo motor, which is conducive to driving the fixed component 11 to move precisely along the X-axis through the fifth drive motor. The fifth transmission mechanism can be a belt transmission mechanism. The specific structure and working principle of the belt transmission mechanism are conventional existing technologies, and its specific setting method will not be described in detail here. When it is necessary to drive the fixed component 11 to move along the X-axis, the fifth transmission mechanism is driven to operate by the fifth drive motor, and the fifth transmission mechanism can drive the fifth slider to move along the fifth guide rail, and the fifth slider can drive the fixed component 11 to move along the X-axis.

[0072] In this embodiment, the fourth linear drive member 131 can drive the fifth linear drive member 132 to move along the Y axis, so that the fifth linear drive member 132 can drive the fixing component 11 to move along the Y axis, and the fifth linear drive member 132 can drive the fixing component 11 to move along the X axis, so that the fixing component 11 can realize Y-direction and X-direction movement, so as to facilitate the loading or unloading of the bone plate 100, and also facilitate the measuring component 21 to measure the bone plate 100 fixed by the fixing component 11.

[0073] Example 2

[0074] The bone plate 100 thickness detection method in this embodiment uses the above-mentioned detection device, such as Figure 5 As shown, the detection method includes the following steps:

[0075] S210 , fixing the bone plate 100 to the clamping assembly 1 and positioning the bone plate 100 at a preset position.

[0076] The controller pre-sets the position of the bone plate 100 to facilitate detection by the detection component 2 .

[0077] S220: Set a predetermined most concave position of the arc-shaped concave surface of the bone plate 100 as an initial detection position.

[0078] Specifically, the controller sets the initial detection position of the bone plate 100. The controller determines the coordinates of the initial detection position based on the preset position of the bone plate 100 and the product specifications such as length, width and thickness.

[0079] S230, control the abutment block 213 to be located at the first original position on the side of the arc-shaped concave surface of the initial detection position of the bone plate 100, control the inner side surface of the second measuring head 212b to be located at the second original position on the side of the arc-shaped convex surface of the initial detection position of the bone plate 100, and calculate the initial spacing S between the first original position and the second original position.

[0080] Specifically, the controller sets the first original position of the abutment block 213 and the second original position of the inner surface of the second measuring head 212b, and controls the inner surface of the abutment block 213 and the second measuring head 212b to be located at the first original position and the second original position respectively before detection. At the same time, the controller calculates the initial spacing S based on the first original position and the second original position.

[0081] S240, control the first measuring head 212a having the abutment block 213 to abut the most concave position of the initial detection position of the bone plate 100, and fit the inner side surface of the second measuring head 212b to the opposite surface of the arc-shaped concave surface of the bone plate 100, and obtain the sum Y of the moving distances of the first measuring head 212a and the second measuring head 212b.

[0082] The abutment block 213 abuts against the most concave position of the bone plate 100 , and the second measuring head 212 b abuts against the surface opposite to the arc-shaped concave surface of the bone plate 100 . The distance between the inner side surfaces of the abutment block 213 and the second measuring head 212 b is the thickness of the bone plate 100 .

[0083] S250 , calculating the thickness W=SY of the bone plate 100 .

[0084] Example 3

[0085] like Figure 6 As shown, the bone plate 100 thickness detection method in this embodiment includes the following steps:

[0086] S310: Place the bone plate 100 on the supporting plate, and place one end of the bone plate 100 against the positioning plate, and clamp the two side surfaces of the bone plate 100 by the first clamping jaw 112a and the second clamping jaw 112b.

[0087] S320: Control the adjusting component 12 and the second moving component 13 to move the bone plate to a preset position.

[0088] Specifically, the controller controls the movement of the adjustment component 12 and the second movable component 13 so that one of the first clamping jaw 112a and the second clamping jaw 112b is located at the horizontal zero position of the bone plate 100 and the second positioning member 15 is located at the longitudinal zero position of the bone plate 100. The controller sets the movement of the adjustment component 12 and positions the upper surface of the support plate at the vertical zero position. After the position of the bone plate 100 is determined, the detection assembly 2 can easily find the position of the bone plate 100.

[0089] S330: Set a predetermined most concave position of the arc-shaped concave surface of the bone plate 100 as an initial detection position.

[0090] Specifically, the calculation module receives a product code input from the display screen. Based on the product code, the controller retrieves the product specifications, namely, length, width, and thickness, from the storage module. The coordinates of the initial detection position are set based on the product specifications. For example, if the middle of the width of the bone plate 100 is the most concave position of the curved concave surface of the bone plate 100, the transverse coordinate of the initial detection position is 1 / 2 of the width of the bone plate 100. The longitudinal coordinate of the initial detection position can be set based on the length of the bone plate 100, without limitation. After the controller obtains the initial detection position of the bone plate 100, it can determine the coordinate position to which the abutment block 213 in the measuring component 21 needs to move during detection based on the initial detection position, thereby achieving accurate detection of the bone plate 100. Otherwise, when detecting the curved bone plate, if the coordinates of the abutment block 213 during detection do not correspond to 1 / 2 of the width of the bone plate 100, then the abutment block 213 will not abut the most concave position of the bone plate 100 during detection, and the inner side surface of the second measuring head 212b will still contact the highest point of the convex surface of the bone plate 100, resulting in the distance between the inner side surfaces of the abutment block 213 and the second measuring head 212b being greater than the actual thickness of the bone plate 100.

[0091] S340, control the abutment block 213 to be located at the first original position on the side of the arc-shaped concave surface of the initial detection position of the bone plate 100, control the inner side surface of the second measuring head 212b to be located at the second original position on the side of the arc-shaped convex surface of the initial detection position of the bone plate 100, and calculate the initial spacing S between the first original position and the second original position.

[0092] The first original position and the second original position are set to have substantially the same distance from the first original position and the second original position to the middle position in the thickness direction of the bone plate 100 according to the coordinates of the bone plate 100 and the product specifications of the bone plate 100, so that the inner side surfaces of the abutment block 213 and the second measuring head 212b can contact the concave surface and the convex surface of the bone plate 100 at substantially the same time, thereby avoiding damage to the bone plate 100 and inaccurate measurement due to non-simultaneous contact with the bone plate 100.

[0093] S350, control the abutment block 213 to abut the most concave position of the initial detection position of the bone plate 100, control the inner side surface of the second measuring head 212b to fit with the opposite surface of the arc-shaped concave surface of the bone plate 100, and when the force of the abutment block 213 and the second measuring head 212b clamping the bone plate 100 reaches a preset external force value, control the first measuring head 212a and the second measuring head 212b to stop moving, and obtain the sum Y of the movement distances of the inner side surfaces of the abutment block 213 and the second measuring head 212b.

[0094] Specifically, the controller sets a preset external force value for the abutment block 213. When the controller determines that the external force applied to the abutment block 213 reaches the preset external force value, the controller controls the first power member to stop driving the first measuring head 212a and the second measuring head 212b to continue moving, thereby keeping the abutment block 213 in contact with the most concave position of the bone plate 100 and not moving further, thereby avoiding damage to the bone plate 100. At the same time, the controller controls the displacement sensors of the first measuring head 212a and the second measuring head 212b to detect the sum Y of the movement distances of the inner surfaces of the abutment block 213 and the second measuring head 212b.

[0095] In addition, the arc-shaped concave surface of the bone plate 100 can be a cylindrical surface, and generally, in the case of a cylindrical surface, the generatrix is ​​set along the length direction of the bone plate 100, and during processing, the most concave position is located at 1 / 2 of the width of the bone plate 100. Therefore, according to the characteristics of the bone plate 100, the side edge of the abutment block 213 abuts against the generatrix of the most concave position of the arc-shaped concave surface of the bone plate 100. When the most concave position is at 1 / 2 of the width of the bone plate 100, the abutment block 213 should be measured corresponding to 1 / 2 of the width of the bone plate 100.

[0096] It can be understood that when the arc-shaped concave surface of the bone plate 100 is a cylindrical surface, the extension direction of the generatrix of the most concave position of the arc-shaped concave surface of the bone plate 100 is the extension direction of the most concave position. By abutting the side edge 2131 with the generatrix of the most concave position of the arc-shaped concave surface of the bone plate 100, the side edge 2131 always contacts the most concave position of the arc-shaped concave surface, which is conducive to improving the accuracy of the detection results.

[0097] When the most concave position is at other positions of the bone plate 100 , the controller controls the abutment block 213 to move to the corresponding position for measurement according to the specification parameters of the bone plate 100 .

[0098] S370 , calculate the thickness W=SY of the bone plate 100 .

[0099] S380: The inner side surfaces of the abutment block 213 and the second measuring head 212b are controlled to return to the first original position and the second original position, respectively. The first movable component 22 is controlled to drive the measuring component 21 to move along the length direction of the bone plate 100, so as to perform multiple measurements outside the initial detection position of the bone plate 100, and the average of the multiple measurement results is calculated.

[0100] Since the curved concave surface of the bone plate 100 can be a cylindrical surface, and the generatrix of a cylindrical surface is generally arranged along the length of the bone plate 100, a more accurate result can be obtained by taking multiple measurements along the length and averaging them. Of course, if the most concave position of the curved concave surface is not along the length, the controller can select a detection position based on the specifications of the bone plate 100.

[0101] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0102] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0103] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0104] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0105] In the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification, as well as features of different embodiments or examples, unless they are mutually inconsistent.

[0106] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bone plate thickness detection device, characterized in that: include: A clamping assembly, wherein the clamping assembly is used to fix the bone plate; A detection assembly, the detection assembly comprising a measuring component, the measuring component comprising a measuring drive and two measuring heads, the measuring drive being configured to drive the two measuring heads toward or away from each other, one of two opposing inner side surfaces of the two measuring heads being provided with an abutment block capable of contacting the most concave position of the arcuate concave surface of the bone plate, and the other of the two opposing inner side surfaces of the two measuring heads being a flat surface perpendicular to a direction of movement of the measuring heads; The abutment block is configured to contact the arcuate concave surface line of the bone plate; The detection assembly further includes a first moving component, the first moving component including a first linear drive, a second linear drive, and a third linear drive, the first linear drive having an output end movable along the Y axis; the second linear drive is disposed at the output end of the first linear drive, the second linear drive having an output end movable along the X axis; the third linear drive is disposed at the output end of the second linear drive, the third linear drive having an output end movable along the Z axis; the third linear drive is configured to drive the measuring component to move along the Z axis, with the X axis, the Y axis, and the Z axis forming an angle with each other; The abutment block includes a raised side edge, and the side edge is parallel to the inner side surface of the other measuring head; The detection device includes a controller, which is electrically connected to the clamping assembly and the detection assembly, and can control the clamping assembly to clamp the bone plate; and can also control the measurement drive of the measuring component in the detection assembly to drive the first measuring head and the second measuring head toward or away from each other, thereby automating the detection process and improving detection efficiency and consistency. The clamping assembly includes a fixing component, the fixing component includes a clamping driver and two clamping jaws, and the clamping driver is used to control the two clamping jaws to clamp the bone plate; The clamping assembly further includes a first positioning member, which is arranged on a side of the clamping drive member to support the bone plate in the thickness direction of the bone plate. The first positioning member includes two supporting plates, which are respectively located on both sides of the fixing member and are used to support the bone plate. And / or, the clamping assembly further comprises a second positioning member, the second positioning member being arranged on a side of the clamping drive member to abut against one end of the bone plate in the length direction of the bone plate; The clamping assembly also includes an adjusting component, the fixing component is arranged at the output end of the adjusting component, the adjusting component is configured to adjust the angle of the fixing component to adjust the angle of the bone plate, and the controller is electrically connected to the adjusting component to control the adjusting component to adjust the angle of the fixing component.

2. The bone plate thickness detection device according to claim 1, characterized in that: The first linear drive member includes a first guide rail, a first slider, a first transmission mechanism, and a first drive motor. The first guide rail extends along the Y-axis direction. The first guide rail is provided with a first drive motor and a first transmission mechanism. The first drive motor is connected to an input end of the first transmission mechanism, and an output end of the first transmission mechanism is connected to the first slider. The first slider can be guided by the first guide rail to slide along the Y-axis. The second linear drive member includes a second guide rail, a second slider, a second transmission mechanism, and a second drive motor. The second guide rail is provided on the first slider and extends along the X-axis. The second guide rail is provided with a second drive motor and a second transmission mechanism. The second drive motor is connected to the input end of the second transmission mechanism, and the output end of the second transmission mechanism is connected to the second slider. The second slider can be guided by the second guide rail to slide along the X-axis. The third linear drive component includes a third guide rail, a third slider, a third transmission mechanism and a third drive motor. The third guide rail is arranged on the second slider. The third guide rail extends along the Z-axis direction. The third guide rail is provided with a third drive motor and a third transmission mechanism. The third drive motor is connected to the input end of the third transmission mechanism, and the output end of the third transmission mechanism is connected to the third slider. The third slider can be guided by the second guide rail to slide along the Z-axis.

3. The bone plate thickness detection device according to claim 1, characterized in that: The clamping assembly further includes a second moving component, which drives the fixed component to move.

4. The bone plate thickness detection device according to claim 3, characterized in that: The adjusting component comprises: a first rotary driving member having an output end rotatable about an axis A; a second rotary driving member, the second rotary driving member being arranged at an output end of the first rotary driving member, the second rotary driving member having an output end rotatable about a B axis perpendicular to the A axis, the fixing member being arranged at the output end of the second rotary driving member; And / or, the second movable component includes a fourth linear drive component and a fifth linear drive component, the fourth linear drive component has an output end movable along the Y-axis; the fifth linear drive component is arranged at the output end of the fourth linear drive component, the fifth linear drive component has an output end movable along the X-axis, and the fifth linear drive component is configured to drive the fixed component to move along the X-axis, and the X-axis and the Y-axis form an angle with each other.

5. A bone plate thickness detection method, characterized in that: Using the detection device according to any one of claims 1 to 4, the detection method comprises the following steps: Fixing the bone plate to the clamping assembly and positioning the bone plate at a preset position; Setting a predetermined most concave position of the arc-shaped concave surface in the bone plate as an initial detection position; Controlling the abutment block to be located at a first original position on one side of the arc-shaped concave surface of the initial detection position of the bone plate, controlling the inner side surface of the measuring head without the abutment block to be located at a second original position on one side of the arc-shaped convex surface of the initial detection position of the bone plate, and calculating an initial spacing S between the first original position and the second original position; Controlling the measuring head with the abutment block to abut against the most concave position of the initial detection position of the bone plate, controlling the inner side surface of the other measuring head to fit against the opposite surface of the arc-shaped concave surface of the bone plate, and obtaining the sum Y of the movement distances of the two measuring heads; The thickness of the bone plate is calculated as W=SY.

6. The bone plate thickness detection method according to claim 5, characterized in that: The measuring head having the abutment block abuts against the most concave position of the initial detection position of the bone plate, further comprising: The arc-shaped concave surface is a cylindrical surface, and the side edge of the abutment block abuts against the generatrix of the most concave position of the arc-shaped concave surface of the bone plate.

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