Arc degree detection device on adaptive stress bone external fixation frame

Abstract

The utility model relates to the technical field of adaptive stress bone external fixation frame production, in particular to an arc degree detection device on an adaptive stress bone external fixation frame. The utility model aims to provide a device for detecting the arc degree of an adaptive stress bone external fixation frame, namely a device for detecting the arc degree of the adaptive stress bone external fixation frame, which comprises a detection table, a depth dial indicator, a matching table, a supporting table, a strip-shaped pressing block and a lamp strip, and is characterized in that the matching table is mounted on the upper surface of the detection table; the upper surface of the matching table is provided with a plurality of semicircular through grooves which are different in diameter and matched with the metal intramedullary needle, the upper surface of the supporting table is provided with a pressing threaded hole and a supporting threaded hole, a supporting bolt is arranged in the supporting threaded hole in a matched mode, the depth dial indicator is installed on the detection table, and the lamp strip is installed on the detection table through the lamp strip fixing base. The detection device is simple in structure, high in universality, convenient to operate and low in cost.

Description

Technical Field

[0001] This invention relates to the field of adaptive stress external fixation device manufacturing technology, and particularly to an auxiliary device used in the production of adaptive stress external fixation devices, specifically a roundness detection device for an adaptive stress external fixation device. Background Technology

[0002] In the field of orthopedic technology, bone healing and limb reconstruction are significant medical challenges. The innovation of adaptive stress external fixators offers new insights into accelerating fracture healing and limb reconstruction. Several components of the adaptive stress external fixator feature semi-circular grooves. Two corresponding semi-circular grooves form a circular groove for fixing the intramedullary nail, a critical part of the component. During use, the intramedullary nail must precisely align with its corresponding circular groove on the adaptive stress external fixator; that is, the intramedullary nail must fit snugly against the corresponding circular groove to prevent it from loosening or falling out, thus ensuring effective bone healing. However, in practical use, insufficient fit between the adaptive stress external fixator and the intramedullary nail often occurs, affecting the overall performance and usability of the adaptive stress external fixator. Therefore, there is an urgent need for a device to detect the circularity of the circular groove on the adaptive stress external fixator. Summary of the Invention

[0003] The purpose of this invention is to provide a device for detecting the curvature of an adaptive stress external fixator, namely, a curvature detection device for an adaptive stress external fixator.

[0004] This invention is achieved using the following technical solution:

[0005] A device for detecting the curvature of an adaptive stress external fixator includes a testing platform, a depth gauge, a mating platform, a support platform, a strip-shaped clamping block, and a light strip. The support platform is fixed to the right end of the upper surface of the testing platform. The mating platform is installed on the upper surface of the testing platform and located to the left of the support platform. The upper surface of the mating platform has multiple semi-circular through slots of different diameters adapted to metal intramedullary nails. The length direction of the multiple semi-circular through slots is arranged along the front-back direction. The upper surface of the support platform has clamping threaded holes and support threaded holes, which are distributed left and right. Support bolts are installed in the support threaded holes, and the top surface of the support bolts has a circular positioning boss. The right end of the strip-shaped clamping block... The bottom surface of the part is supported on the top surface of the support bolt, and its bottom surface is provided with a positioning groove that is rotatably connected to the circular positioning boss. The clamping thread hole is fitted with a clamping bolt. The middle part of the strip clamping block is provided with a bolt hole that is adapted to the clamping bolt. The bottom surface of the left end of the strip clamping block is used to clamp the workpiece to be tested (the workpiece to be tested refers to the part with the semi-circular arc groove on the adaptive stress bone external fixation frame) onto the mating table. The depth dial indicator is installed on the upper surface of the testing table through the dial indicator bracket and is used to detect the flatness of the workpiece to be tested when it is clamped onto the mating table. The light strip is used to perform light transmission detection on the arc groove formed by the semi-circular arc groove on the workpiece to be tested and the semi-circular arc groove on the mating table. The light strip is installed on the testing table through the light strip fixing seat.

[0006] During inspection, each semicircular groove is inspected individually to avoid cumulative errors affecting inspection accuracy when inspecting multiple semicircular grooves. The specific inspection steps are as follows: 1) Prepare a cylindrical gauge (the cylindrical gauge is a standard part and the same size as the metal intramedullary needle used) that matches the size of the semicircular groove on the workpiece to be tested, and place the cylindrical gauge in the corresponding semicircular groove on the mating table; 2) Place the workpiece to be tested on the upper part of the mating table and align the semicircular groove on the workpiece with the semicircular groove on the mating table; 3) Adjust the support bolts to a suitable height, and at the same time rotate the strip-shaped clamping block so that the bottom surface of the left end of the strip-shaped clamping block contacts the surface of the workpiece to be tested; 4) Use a depth dial indicator to measure the... 5) Align the workpiece on a flat surface; 6) Tighten the clamping bolts so that the strip clamping block presses the workpiece to be tested against the mating table; 7) Use a light strip to perform light transmission detection on the semi-circular arc groove on the workpiece to be tested and the arc groove formed by the semi-circular arc groove on the mating table, that is, to detect the gap between the cylindrical gauge and the corresponding arc groove. The size of the gap can be measured with the aid of a feeler gauge. When the light source transmits through a large gap, greater than 0.1mm, it means that the arc of the workpiece to be tested does not match, and the metal intramedullary needle is easy to fall off during use; when the light source transmits through a small gap, less than 0.05mm, it means that the arc of the workpiece to be tested matches, and the metal intramedullary needle is not easy to fall off during use, with higher stability and improved use effect.

[0007] Furthermore, the length of the testing platform is arranged along the left and right direction, and the testing platform and the support platform are integrally fixedly connected. The dial indicator bracket and the mating platform are distributed on the left and right and are all slidably installed on the testing platform for convenient measurement.

[0008] Furthermore, a sliding table is provided on the part of the upper surface of the testing platform that is not fixed to the support platform. The sliding table is located in the middle of the upper surface of the testing platform in the front-back direction. The bottom surface of the dial indicator bracket and the mating table are provided with sliding grooves that are adapted to the sliding table, which facilitates the movement of the dial indicator bracket and the mating table during use and has high adaptability.

[0009] Furthermore, the left end of the strip-shaped clamping block is an arc block that bends in the lower left direction. The arc block is used to press the workpiece to be tested, resulting in a stronger clamping force.

[0010] Furthermore, the front or rear end of the testing station is provided with a guide groove, and the bottom surface of the light strip fixing seat is provided with a guide block that matches the guide groove, so as to facilitate the adjustment of the left and right position of the light strip fixing seat.

[0011] Furthermore, the LED strip mounting bracket includes an upper L-shaped mounting bracket, a lower L-shaped mounting bracket, and two locking bolts distributed vertically. A guide block is located on the bottom surface of the lower L-shaped mounting bracket. Locking threaded holes are provided at both ends of the top surface of the lower L-shaped mounting bracket. Elongated oval grooves, arranged in the front-to-back direction and adapted to the locking bolts, are provided at both ends of the horizontal portion of the upper L-shaped mounting bracket. The two locking bolts pass through the corresponding elongated oval grooves and are screwed into the corresponding locking threaded holes, thus securing the LED strip to the vertical portion of the upper L-shaped mounting bracket. The structure of the LED strip mounting bracket is specific and standardized, facilitating the adjustment of its front-to-back position.

[0012] Furthermore, a spring is fitted on the clamping bolt located between the upper surface of the support platform and the strip-shaped clamping block. When the clamping bolt is tightened, the strip-shaped clamping block clamps the workpiece to be tested. When the clamping bolt is loosened, the strip-shaped clamping block disengages from the workpiece to be tested, making it convenient to install and remove the workpiece to be tested.

[0013] Furthermore, multiple heat dissipation holes are evenly distributed on the vertical part of the upper L-shaped mounting bracket to facilitate heat dissipation of the light strip.

[0014] The beneficial effects of this invention are as follows: This invention effectively detects the curvature of the workpiece by means of a light source, thereby controlling the generation of defective products and ensuring that the curvature groove on the workpiece can accurately match the metal intramedullary nail during use. This effectively prevents the metal intramedullary nail from falling off, making the adaptable stress external fixator more applicable and its performance more stable. At the same time, the detection device has a simple structure, strong versatility, convenient operation, and low cost. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the detection device described in this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of the detection device described in this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the overall structure of the detection device described in this utility model. Figure 3 .

[0020] In the diagram: 1-Inspection table, 2-Depth dial indicator, 3-Matching table, 4-Support table, 5-Strip clamping block, 6-Light strip, 7-Support bolt, 8-Circular positioning boss, 9-Positioning groove, 10-Spring, 11-Clamping bolt, 12-Workpiece to be measured, 13-Dial indicator bracket, 14-Slide table, 15-Arc block, 16-Guide groove, 17-Guide block, 18-Upper L-shaped fixing seat, 19-Lower L-shaped fixing seat, 20-Locking bolt, 21-Oblong groove, 22-Heat dissipation hole, 23-Cylindrical gauge. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0022] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0024] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] like Figure 1 , 2 As shown in Figure 3, an arcuate detection device for an adaptive stress external fixator includes a detection platform 1, a depth dial indicator 2, a mating platform 3, a support platform 4, a strip-shaped clamping block 5, and a light strip 6. The support platform 4 is fixed to the right end of the upper surface of the detection platform 1. The mating platform 3 is installed on the upper surface of the detection platform 1 and is located to the left of the support platform 4. The upper surface of the mating platform 3 is provided with multiple semi-circular arc through grooves of different diameters that are adapted to metal intramedullary nails. The length direction of the multiple semi-circular arc through grooves is arranged along the front-back direction. The upper surface of the support platform 4 is provided with clamping threaded holes and support threaded holes, which are distributed left and right. A support bolt 7 is installed in the support threaded hole. The top surface of the support bolt 7 is provided with a circular positioning boss 8. The bottom surface of the right end of the strip-shaped clamping block 5 is... The top surface of the support bolt 7 is supported and the bottom surface of the support bolt 7 is provided with a positioning groove 9 that is rotatably connected to the circular positioning boss 8. The clamping thread hole is fitted with a clamping bolt 11. The middle part of the strip clamping block 5 is provided with a bolt hole that is adapted to the clamping bolt 11. The bottom surface of the left end of the strip clamping block 5 is used to clamp the workpiece to be tested 12 (the workpiece to be tested 12 refers to the part with the semi-circular arc groove on the adaptive stress bone external fixation frame) onto the mating table 3. The depth dial indicator 2 is installed on the upper surface of the testing table 1 through the dial indicator bracket 13 and is used to detect the flatness of the workpiece to be tested 12 when it is clamped onto the mating table 3. The light strip 6 is used to perform light transmission detection on the arc groove formed by the semi-circular arc groove on the workpiece to be tested 12 and the semi-circular arc groove on the mating table 3. The light strip 6 is installed on the testing table 1 through the light strip fixing seat.

[0026] During inspection, each semicircular groove is inspected individually to avoid cumulative errors affecting inspection accuracy when inspecting multiple semicircular grooves. The specific inspection steps are as follows: 1) Prepare a cylindrical gauge 23 that matches the size of the semicircular groove on the workpiece 12 to be tested (the cylindrical gauge 23 is a standard part and is the same size as the metal intramedullary needle used in the test), and place the cylindrical gauge 23 in the corresponding semicircular groove on the mating table 3; 2) Place the workpiece 12 to be tested on the upper part of the mating table 3 and align the semicircular groove on the workpiece 12 with the semicircular groove on the mating table 3; 3) Adjust the support bolt 7 to a suitable height, and at the same time rotate the strip-shaped clamping block 5 so that the bottom surface of the left end face of the strip-shaped clamping block 5 contacts the surface of the workpiece 12 to be tested; 4) Use the depth dial indicator 2 to check the surface of the workpiece 12. 5) Align the workpiece 12 to be tested on a plane; 6) Tighten the clamping bolts 11 so that the strip clamping block 5 presses the workpiece 12 to be tested against the mating table 3; 7) Use the light strip 6 to perform light transmission detection on the arc groove formed by the semi-circular arc groove on the workpiece 12 and the semi-circular arc groove on the mating table 3, that is, to detect the gap between the cylindrical gauge and the corresponding arc groove. The gap size can be measured with the aid of feeler gauge. When the light source transmits through a large gap, greater than 0.1mm, it means that the arc of the workpiece 12 does not match, and the metal intramedullary needle is easy to fall off during use; when the light source transmits through a small gap, less than 0.05mm, it means that the arc of the workpiece 12 matches, and the metal intramedullary needle is not easy to fall off during use, with higher stability and improved use effect.

[0027] In practice, the length of the testing platform 1 is arranged along the left and right directions, and the testing platform 1 and the support platform 4 are fixedly connected as a whole. The dial indicator bracket 13 and the mating platform 3 are distributed on the left and right sides and are all slidably installed on the testing platform 1 for easy measurement.

[0028] In specific implementation, a slide table 14 is provided on the part of the upper surface of the testing table 1 that is not fixed to the support table 4. The slide table 14 is located in the middle of the upper surface of the testing table 1 in the front-back direction. The bottom surfaces of the dial indicator bracket 13 and the mating table 3 are provided with sliding grooves that are compatible with the slide table 14, which facilitates the movement of the dial indicator bracket 13 and the mating table 3 during use and has high adaptability.

[0029] In practice, the left end of the strip-shaped clamping block 5 is an arc block 15 that bends in the lower left direction. The arc block 15 is used to press the workpiece 12 to be tested, resulting in a stronger clamping force.

[0030] In practice, the front or rear end of the testing station 1 is provided with a guide groove 16, and the bottom surface of the light strip fixing seat is provided with a guide block 17 that matches the guide groove 16, so that the left and right positions of the light strip fixing seat can be adjusted.

[0031] In practical implementation, the LED strip mounting bracket includes an upper L-shaped mounting bracket 18, a lower L-shaped mounting bracket 19, and two locking bolts 20, distributed vertically. A guide block 17 is located on the bottom surface of the lower L-shaped mounting bracket 19. Locking threaded holes are provided at both ends of the top surface of the lower L-shaped mounting bracket 19. Elongated oval grooves 21, arranged in the front-to-back direction and adapted to the locking bolts 20, are provided at both ends of the horizontal portion of the upper L-shaped mounting bracket 18. The two locking bolts 20 pass through the corresponding elongated oval grooves 21 and are screwed into the corresponding locking threaded holes. The LED strip 6 is fixed to the vertical portion of the upper L-shaped mounting bracket 18. The structure of the LED strip mounting bracket is specific and standardized, facilitating the adjustment of its front-to-back position.

[0032] In practice, a spring 10 is fitted on the clamping bolt 11 located between the upper surface of the support platform 4 and the strip-shaped clamping block 5. When the clamping bolt 11 is tightened, the strip-shaped clamping block 5 clamps the workpiece 12 to be tested. When the clamping bolt 11 is loosened, the strip-shaped clamping block 5 disengages from the workpiece 12 to be tested, making it convenient to install and remove the workpiece 12 to be tested.

[0033] In this specific embodiment, multiple heat dissipation holes 22 are evenly distributed on the vertical part of the upper L-shaped fixing base 18 to facilitate heat dissipation of the light strip 6.

[0034] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered within the protection scope of the claims.

Claims

1. A device for detecting the curvature of an adaptive stress external fixator, characterized in that, The system includes a testing platform (1), a depth gauge (2), a mating platform (3), a support platform (4), a strip clamping block (5), and a light strip (6). The support platform (4) is fixed to the right end of the upper surface of the testing platform (1). The mating platform (3) is installed on the upper surface of the testing platform (1) and is located to the left of the support platform (4). The upper surface of the mating platform (3) is provided with multiple semi-circular arc through grooves of different diameters that are adapted to the metal intramedullary needle. The length direction of the multiple semi-circular arc through grooves is arranged along the front and back direction. The upper surface of the support platform (4) is provided with clamping thread holes and support thread holes, which are distributed left and right. The support thread holes are equipped with support bolts (7). The top surface of the support bolts (7) is provided with a circular positioning boss (8). The bottom surface of the right end of the strip clamping block (5) is supported. The top surface of the support bolt (7) is provided with a positioning groove (9) that is rotatably connected to the circular positioning boss (8). The clamping thread hole is fitted with a clamping bolt (11). The middle part of the strip clamping block (5) is provided with a bolt hole that is compatible with the clamping bolt (11). The bottom surface of the left end of the strip clamping block (5) is used to clamp the workpiece (12) to be tested onto the mating table (3). The depth dial indicator (2) is installed on the upper surface of the testing table (1) through the dial indicator bracket (13) and is used to detect the flatness of the workpiece (12) to be tested when it is clamped onto the mating table (3). The light strip (6) is used to perform light transmission detection on the arc groove formed by the semi-circular arc groove on the workpiece (12) and the semi-circular arc groove on the mating table (3). The light strip (6) is installed on the testing table (1) through the light strip fixing seat.

2. The arcuate detection device for an adaptive stress external fixator according to claim 1, characterized in that, The length of the testing table (1) is arranged along the left and right direction and the testing table (1) is fixedly connected to the support table (4). The dial indicator bracket (13) and the mating table (3) are distributed on the left and right and are all slidably installed on the testing table (1).

3. The arcuate detection device for an adaptive stress external fixator according to claim 2, characterized in that, The upper surface of the testing table (1) is not fixed to the support table (4) and a slide table (14) is arranged in the left-right direction. The slide table (14) is located in the middle of the front-back direction of the upper surface of the testing table (1). The dial indicator bracket (13) and the bottom surface of the mating table (3) are both provided with slide grooves that are compatible with the slide table (14).

4. The arcuate detection device for an adaptive stress external fixator according to claim 3, characterized in that, The left end of the strip-shaped pressing block (5) is an arc block (15) that bends in the lower left direction.

5. The arcuate detection device for an adaptive stress external fixator according to claim 4, characterized in that, The front or rear end of the testing table (1) is provided with a guide groove (16), and the bottom surface of the light strip fixing seat is provided with a guide block (17) that is compatible with the guide groove (16).

6. The arcuate detection device for an adaptive stress external fixator according to claim 5, characterized in that, The light strip mounting bracket includes an upper L-shaped mounting bracket (18) and a lower L-shaped mounting bracket (19) distributed vertically, and two locking bolts (20). The guide block (17) is located on the bottom surface of the lower L-shaped mounting bracket (19). Locking threaded holes are provided on both the left and right ends of the top surface of the lower L-shaped mounting bracket (19). The upper L-shaped mounting bracket (18) has elongated oval grooves (21) arranged in the front-back direction and adapted to the locking bolts (20) on both the left and right ends of the horizontal part. The two locking bolts (20) pass through the corresponding elongated oval grooves (21) and are screwed into the corresponding locking threaded holes. The light strip (6) is attached to the vertical part of the upper L-shaped mounting bracket (18).

7. The arcuate detection device for an adaptive stress external fixator according to claim 6, characterized in that, A spring (10) is fitted on the clamping bolt (11) located between the upper surface of the support platform (4) and the strip clamping block (5).

8. The arcuate detection device for an adaptive stress external fixator according to claim 7, characterized in that, Multiple heat dissipation holes (22) are evenly distributed on the vertical part of the upper L-shaped fixing base (18).

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