Personalized and customized 3D printing protective tool based on human body characteristics and manufacturing method

Abstract

The invention belongs to the technical field of protection tool preparation, and particularly relates to a 3D printing protection tool personalized customization based on human body characteristics and a manufacturing method, and the 3D printing protection tool personalized customization based on the human body characteristics comprises a data collection device used for collecting body data of a patient and inputting the data into a system to customize the protection tool required by the patient; the protector printing device is arranged on the workbench, the protector printing device prints the protector according to the data collected by the data collection device, and the protector meeting the requirement is customized through collection and analysis of the body data of the patient; the display device is arranged on the workbench, is connected with the protector printing device and the data acquisition device, and is used for analyzing the data acquired by the data acquisition device and manufacturing the protector according to the acquired data, so that each detail conforms to the human engineering principle, abrasion and discomfort caused by improper protectors are effectively reduced, and the working efficiency is improved. And meanwhile, the exercise performance and safety are improved, so that the user can enjoy the double guarantee of comfort and protection in various environments.

Description

Technical Field

[0001] The present invention relates to the technical field of protective gear preparation, in particular to 3D printed protective gear that is personalized based on human body characteristics, and also to a method for making 3D printed protective gear that is personalized based on human body characteristics. Background Art

[0002] Shoulder braces are widely used in rehabilitation treatment after shoulder injuries, such as shoulder dislocation, rotator cuff injury, shoulder fracture, etc. Traditional shoulder braces usually use prefabricated templates, which are difficult to fully adapt to the individual's anatomical structure, and may lead to problems such as poor fixation effect and poor patient comfort. In recent years, the rapid development of 3D printing technology has provided new solutions for the customized production of medical devices. Using 3D printing technology, highly personalized shoulder braces can be manufactured according to the specific needs and anatomical structure of the patient, thereby improving the fixation effect and patient comfort.

[0003] The 3D printing protective gear technology that has been made public mainly focuses on the following aspects: using human body scan data to build a virtual model and perform CAD design, and then using 3D printing technology to make protective gear; using soft materials for 3D printing to improve the comfort of protective gear; designing and customizing protective gear for specific parts or injuries. However, existing technologies still have limitations in accurately capturing human body features and personalized customization;

[0004] In view of the above-mentioned technical defects, a 3D printed protective gear and a production method solution based on personalized customization of human body characteristics are proposed. Summary of the invention

[0005] To solve the above problems, the present invention provides the following technical solutions:

[0006] A 3D printed protective gear customized based on human body characteristics, comprising:

[0007] A workbench, which is used for installing various components;

[0008] A data acquisition device, which is disposed on the workbench and is used to collect the patient's physical data and enter the data into a system to tailor protective gear to the patient's needs;

[0009] A protective gear printing device, the protective gear printing device is arranged on the workbench, the protective gear printing device is connected to the data acquisition device, the protective gear printing device prints protective gear according to the data collected by the data acquisition device, and customizes the protective gear that meets the requirements by collecting and analyzing the patient's body data;

[0010] A display device is arranged on the workbench, the display device is connected to the protective gear printing device and the data acquisition device, and the display device is used to analyze the data collected by the data acquisition device and make protective gear according to the collected data.

[0011] Furthermore, the data acquisition device includes an acquisition frame and a fixed seat on a collection sensor. The acquisition frame is arranged on one side of the workbench, the fixed seat is arranged at the bottom of the workbench and is used for positioning the patient, and the collection sensor is arranged on the acquisition frame and scans and collects the patient's body data.

[0012] Furthermore, the protective gear printing device includes a printing box, a 3D printer and a printing table. The printing box is arranged on one side of the workbench, and an observation window is arranged on the printing box. The 3D printer is arranged in the printing box, and the printing table is arranged along the base of the printing box. The 3D printer performs 3D printing of protective gear along the printing table. The display device is arranged on the workbench, and the display device includes a display and a host. The display is arranged on the workbench, and the host is arranged along the workbench and electrically connected to the display. The host is connected to the acquisition sensor to process the collected data and display it on the display.

[0013] According to another aspect of the present invention, a manufacturing method is provided, including the above-mentioned 3D printed protective gear personalized based on human body characteristics, and further comprising:

[0014] Step 1: Use a 3D scanning device to scan the target body part, obtain 3D data, and manually adjust and verify the scanned data through manual measurement;

[0015] Step 2: Based on the 3D model, design the personalized protective gear in CAD software, including the selection and design of the shape, size, and thickness parameters of the protective gear, and add functional design as needed;

[0016] Step 3: Convert the designed model into a file format supported by the 3D printer, and adjust the printing parameters according to the selected 3D printing equipment and materials;

[0017] Step 4: Remove the support structure used in the printing process, polish, clean and glaze the 3D printed parts to improve the surface quality and comfort, and assemble and test the protective gear composed of multiple parts;

[0018] Step 5: Have users try on the protective gear to check its comfort, fit and functional effects, and make necessary adjustments and modifications based on user feedback to ensure that the final product is comfortable and functional.

[0019] Furthermore, in step 1, the status of the scanning device is confirmed, the scanned body part is cleaned, dirt or sweat that affects the scanning accuracy is removed, the scanned person is ensured to be in the correct posture so that the part to be scanned is exposed, a bracket or other auxiliary tools are used to fix the scanned person to reduce errors caused by movement, the target part is scanned in all directions using a 3D scanner to ensure that the scan covers all details of the target part and avoids blind spots and shadows, key dimensions are manually measured using a tape measure, caliper or other measuring tools, the dimensions of the target part are recorded, the manually measured data is compared with the 3D data generated by the scan, and the accuracy of the scan data, including shape, proportion and size, is confirmed using 3D scanning software, the manually measured data is input and calibrated with the scan data, the existing errors are corrected, the accuracy of the 3D model is ensured, the noise and redundant parts in the scan data are cleaned, the details that were not captured during the scanning process are corrected, and the integrity of the model is ensured, the calibrated 3D model is preliminarily checked using professional software to confirm that it conforms to the actual body geometry, the preliminary model is verified with the target user, its accuracy and applicability are confirmed by comparison, trial wearing or other methods, and final adjustments and modifications are made based on user feedback to ensure that the 3D data is accurate.

[0020] Furthermore, the data processing in step one includes importing the 3D data file generated by the scanner into professional software, and after importing, preliminarily checking whether the data has obvious noise, missing or irregular parts, using the noise detection tool of the software to identify the noise in the data, using the smoothing or denoising tool to gradually remove the noise points, using the hole detection tool of the software to identify the holes or missing parts in the model, using the automatic filling or manual filling tool to fill the holes, and for complex or critical parts, manual operations are performed to ensure accuracy, using the mesh simplification tool of the software to reduce the number of faces of the model to improve the efficiency of subsequent processing, using the irregularity detection tool to identify irregular parts in the model, using the irregularity repair tool to gradually repair irregular parts, using the smoothing tool to smooth the surface of the model to eliminate irregular traces that may be caused by manual operations, using the detail enhancement tool to restore or enhance the subtle features of the model, and after completing the cleaning and repair, the integrity, smoothness and detail performance of the model are checked as a whole, and the processed three-dimensional model is exported to a common file format for use in subsequent design software.

[0021] Furthermore, the step 2 includes adjusting the outer contour of the protective gear according to the shape and functional requirements of the target body part to ensure that the protective gear can fully fit the body part to avoid friction during exercise or wearing, ensuring that the size of the protective gear meets individual needs based on the data in the three-dimensional model, making precise adjustments through the measuring tools of the CAD software, designing adjustable parts to adapt to the body shape changes of different users, selecting suitable materials according to the purpose of the protective gear to ensure good support and comfort, designing appropriate thickness in different parts, thickening the key stress-bearing areas, and appropriately thinning the weak parts to improve comfort, adding ventilation holes or mesh structures to the protective gear to promote air circulation and improve the wearer's comfort, adding anti-collision materials or structures to the key protection areas of the protective gear to improve the protection effect, embedding guide devices in the protective gear to help the wearer move or use the injured part correctly, adding support components in the support area to enhance the protection effect, using CAD software to perform virtual simulation tests, evaluate the performance of the protective gear under different motion states, and optimize the design.

[0022] Furthermore, the step three includes selecting a file format suitable for 3D printing, selecting file export in the CAD software, and then saving the file in the selected format, adjusting the vertex resolution to control the accuracy of the model, setting the minimum and maximum lengths of the edges, ensuring that the model has sufficient details while not being too fine, resulting in a long printing time, using a dedicated 3D printing preparation software to import the model, performing integrity and geometry checks on the model, ensuring that all edges and faces are closed and correct, ensuring that faces do not cross or overlap, and filling any holes in the model to ensure the integrity of the print, and when problems are detected, using the repair function in the 3D printing preparation software for automatic repair, or manually editing the model, selecting the target 3D printer model, setting printing parameters consistent with the printer, selecting a suitable nozzle diameter according to the material and printing accuracy requirements, confirming that the model size is within the range of the printing platform, scaling or block printing if necessary, setting the printing layer height between 0.1 mm and 0.3 mm, setting the internal filling density of the model, and previewing the sliced ​​model in the software, including the printing path, support structure, and time estimation of each layer, adjusting the parameters according to the preview results to ensure the optimal printing process.

[0023] Furthermore, step four includes using manual tools to remove the support structure to avoid damaging the main structure of the model. For water-soluble support materials, soak the print in water and wait for the support material to dissolve. Use sandpaper of different mesh sizes to gradually polish the surface from coarse to fine. For small details and difficult-to-polish areas, use a sander or grinder for detailed processing. Use coarse sandpaper to polish the surface to remove obvious defects, support marks and layer patterns. Use finer sandpaper to gradually smooth the surface and improve the smoothness. After polishing, use a clean cloth or air pump to clean the surface dust and debris. Wash the print with warm water and non-corrosive detergent to remove dust and grease generated during the polishing process. Use a soft brush to gently brush the details of the model to ensure thorough cleaning. After cleaning, place the print in a well-ventilated place to dry naturally to avoid high temperature directly burning the surface. Choose varnish or spray paint suitable for the material to enhance the gloss and protection of the model surface. When using spray paint, maintain the uniformity of the spray and apply it evenly on the surface. Pay attention to the distance between the spray and the model. After the first layer of polish is dry, apply another layer as needed to enhance the gloss. Before assembly, check the connection parts of each component to ensure seamless connection. If necessary, perform small-scale polishing to ensure fit. For specific designs, use plug-in connection to connect components to improve assembly flexibility. After assembly, perform a wearing test to confirm the comfort and functionality of the protective gear.

[0024] Furthermore, step five includes selecting representative users for trial wearing, explaining to the users in detail the usage, wearing requirements and precautions of the protective gear, ensuring that the users can wear it correctly, encouraging users to provide timely feedback on comfort after trial wearing, including whether there is friction, pressure or other discomfort, recording the user's description of the touch and airtightness of the material, observing the fit of the protective gear on the user's body shape, confirming the shape and size of the protective gear and the fit of the user's body part, checking whether there is sliding or displacement, ensuring the stability of the protective gear during exercise, observing the performance of the protective gear during exercise, collecting user feedback on the flexibility, support and other functions of the protective gear, and recording each user's feedback in detail, including text, photos and videos Data for subsequent analysis, classify the feedback content, such as comfort issues, fit issues and functional issues, to facilitate targeted improvements, analyze all user feedback, identify common problems, and give priority to issues of high importance or wide impact. According to user feedback, make improvements by adjusting the overall size or local structure of the protective gear, modify the design of the protective gear to make it more fit the user's shape, add a more reasonable curvature design to joints such as elbows and knees, replace or improve materials, choose more comfortable materials, replace the materials inside the protective gear to increase skin comfort and avoid skin irritation, make modifications to the functional parts of the problem, and add fillers to key parts to improve support and cushioning effects.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. In the 3D printed protective gear and manufacturing method based on the personalized customization of human body characteristics of the present invention, a data acquisition device is used to collect the patient's body data and enter the data into the system to tailor the protective gear required by the patient; a protective gear printing device is arranged on a workbench, and the protective gear printing device prints the protective gear according to the data collected by the data acquisition device, and the protective gear that meets the requirements is customized by collecting and analyzing the patient's body data; a display device is arranged on the workbench, and the display device connects the protective gear printing device and the data acquisition device, and the display device is used to analyze the data collected by the data acquisition device and manufacture the protective gear according to the collected data, ensuring that every detail conforms to the principle of ergonomics, effectively reducing the wear and discomfort caused by inappropriate protective gear, while improving sports performance and safety, so that users can enjoy the dual guarantee of comfort and protection in various environments;

[0027] 2. In the 3D printed protective gear and production method customized based on human body characteristics of the present invention, a 3D scanning device is used to scan the target body part to obtain 3D data, and the scanned data is manually adjusted and verified with the assistance of manual measurement; according to the 3D model, the personalized protective gear is designed in the CAD software, including the selection and design of the shape, size, and thickness parameters of the protective gear, and functional design is added as needed; the designed model is converted into a file format supported by the 3D printer, and the printing parameters are adjusted according to the selected 3D printing equipment and materials; the support structure used in the printing process is removed, and the 3D printed parts are polished, cleaned, and glazed to improve the surface quality and comfort, and the protective gear composed of multiple parts is assembled and tested; the user tries on the protective gear to check its comfort, fit, and functional effect, and makes necessary adjustments and modifications based on user feedback to ensure the comfort and functionality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0029] Figure 1 This is a schematic diagram of the overall structure of the 3D printed protective gear and the manufacturing method thereof that are personalized based on human body characteristics according to the present invention;

[0030] Figure 2 This is a front view schematic diagram of the 3D printed protective gear and the manufacturing method according to the present invention that is personalized based on human body characteristics;

[0031] Figure 3 The present invention is a schematic diagram of the process flow of the 3D printed protective gear and the manufacturing method for personalized customization based on human body characteristics.

[0032] Figure numerals: 1. workbench; 2. data acquisition device; 21. acquisition frame; 22. fixing seat; 23. acquisition sensor; 3. protective gear printing device; 31. printing box; 32. 3D printer; 33. printing table; 4. display device; 41. host; 42. display. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-3 As shown, a 3D printed protective gear customized based on human body characteristics includes:

[0035] Workbench 1, workbench 1 is used for installing various components;

[0036] Data acquisition device 2, which is disposed on the workbench 1, is used to collect the patient's physical data and enter the data into the system to tailor protective gear to the patient's needs;

[0037] The protective gear printing device 3 is arranged on the workbench 1 and connected to the data acquisition device 2. The protective gear printing device 3 prints the protective gear according to the data collected by the data acquisition device 2, and customizes the protective gear that meets the requirements by collecting and analyzing the patient's body data;

[0038] The display device 4 is arranged on the workbench 1, and the display device 4 is connected to the protective gear printing device 3 and the data acquisition device 2. The display device 4 is used to analyze the data collected by the data acquisition device 2 and make the protective gear according to the collected data.

[0039] Specifically, the data acquisition device 2 includes an acquisition frame 21, a fixed seat 22 and an acquisition sensor 23. The acquisition frame 21 is arranged on one side of the workbench 1, the fixed seat 22 is arranged at the bottom of the workbench 1 and is used to position the patient, and the acquisition sensor 23 is arranged on the acquisition frame 21 and scans and collects the patient's body data. The protective gear printing device 3 includes a printing box 31, a 3D printer 32 and a printing table 33. The printing box 31 is arranged on one side of the workbench 1, and an observation window is arranged on the printing box 31. The 3D printer 32 is arranged in the printing box 31, and the printing table 33 is arranged along the base of the printing box 31. The 3D printer 32 performs 3D printing of the protective gear along the printing table 33. A display device 4 is arranged on the workbench 1. The display device 4 includes a display and a host 41. The display is arranged on the workbench 1. The host 41 is arranged along the workbench 1 and is electrically connected to the display 42. The host 41 is connected to the acquisition sensor 23 to process the collected data and display it on the display 42.

[0040] According to another aspect of the present invention, a manufacturing method is provided, including the above-mentioned 3D printed protective gear personalized based on human body characteristics, and further comprising:

[0041] S1: Scan the target body part using a 3D scanning device to obtain 3D data, and manually adjust and verify the scanned data with the assistance of manual measurement;

[0042] S2: Based on the 3D model, design personalized protective gear in CAD software, including the selection and design of the shape, size, and thickness parameters of the protective gear, and add functional design as needed;

[0043] S3: Convert the designed model into a file format supported by the 3D printer and adjust the printing parameters according to the selected 3D printing equipment and materials;

[0044] S4: Remove support structures used in the printing process, sand, clean, and polish 3D printed parts to improve surface quality and comfort, and assemble and test multi-part protective gear;

[0045] S5: Have users try on the protective gear to check its comfort, fit and functional effects, and make necessary adjustments and modifications based on user feedback to ensure that the final product is comfortable and functional.

[0046] Use 3D scanning software to input the manually measured data and calibrate it with the scanned data. Correct possible errors to ensure the accuracy of the 3D model. Clean up the noise and redundant parts in the scanned data, such as redundant surfaces, voids, and irregular parts. Correct the details that were not captured during the scanning process to ensure the integrity of the model. Use professional software to conduct a preliminary check on the calibrated 3D model to confirm that it conforms to the actual body geometry. Verify the preliminary model with the target user and confirm its accuracy and applicability through comparison, trial wearing or other methods. Make final adjustments and modifications based on user feedback to ensure that the 3D data is accurate. Through the above steps, it can be ensured that the acquired 3D data accurately reflects the actual characteristics of the target body part, providing a reliable data basis for the subsequent 3D printing protective gear design and production.

[0047] Specifically, in step 1, the status of the scanning device is confirmed, the scanned body part is cleaned, dirt or sweat that affects the scanning accuracy is removed, the scanned person is ensured to be in a correct posture so that the part to be scanned is exposed, a bracket or other auxiliary tools are used to fix the scanned person to reduce errors caused by movement, a 3D scanner is used to perform an all-round scan of the target part to ensure that the scan covers all details of the target part and avoids blind spots and shadows, a tape measure, caliper or other measuring tool is used to manually measure key dimensions, the dimensions of the target part are recorded, the manually measured data is compared with the 3D data generated by the scan, and the accuracy of the scan data, including shape, proportion and size, is confirmed using 3D scanning software, the manually measured data is input and calibrated with the scan data, the existing errors are corrected, the accuracy of the 3D model is ensured, the noise and redundant parts in the scan data are cleaned, the details that were not captured during the scanning process are corrected, and the integrity of the model is ensured, the calibrated 3D model is preliminarily checked using professional software to confirm that it conforms to the actual body geometry, the preliminary model is verified with the target user, its accuracy and applicability are confirmed by comparison, trial wearing or other methods, and final adjustments and modifications are made based on user feedback to ensure that the 3D data is accurate.

[0048] After cleaning and repairing, check the model as a whole for integrity, smoothness, and detail.

[0049] Export model: Export the processed 3D model to common file formats (such as STL, OBJ, etc.) for use in subsequent design software.

[0050] A brief flow of using the sample tool:

[0051] Geomagic Studio:

[0052] Import scan data: Click "File->Import" to import scan data.

[0053] Remove noise: Use the "Retouch->RemoveNoise" tool to remove noise.

[0054] Fill holes: Use the "Repair->FillHoles" tool to fill holes.

[0055] Repair irregularities: Use the "CleanUp->Fix" tool to repair irregularities.

[0056] Smooth the surface: Use the "Retouch->Smooth" tool to smooth the surface.

[0057] Export model: Click "File->Export" to export the processed model.

[0058] MeshLab:

[0059] Import scan data: Click "File->ImportMesh" to import scan data.

[0060] Remove noise:

[0061] Use the "Filters->Remeshing, Simplification and Reconstruction->Smooth" tool to remove noise.

[0062] Filling the gaps:

[0063] Use the "Filters->Remeshing, Simplification and Reconstruction->Close Holes" tool to fill the holes.

[0064] Fix irregularities:

[0065] Use the "Filters->CleaningandRepairing->RepairNonManifoldEdges" tool to repair irregularities.

[0066] Smooth Surface:

[0067] Smooth the surface using the "Filters->Smoothing, Fairing and Deformation->LaplacianSmooth" tool.

[0068] Export model: Click "File->ExportMeshAs" to export the processed model.

[0069] By using the above steps and tools, data cleaning and model reconstruction can be effectively performed to ensure high-quality 3D models, providing a reliable foundation for subsequent personalized design and 3D printing.

[0070] Specifically, the data processing in step one includes importing the 3D data file generated by the scanner into professional software, and after importing, preliminarily checking whether the data has obvious noise, missing or irregular parts, using the noise detection tool of the software to identify the noise in the data, using the smoothing or denoising tool to gradually remove the noise points, using the hole detection tool of the software to identify the holes or missing parts in the model, using the automatic filling or manual filling tool to fill the holes, and for complex or critical parts, manual operations are performed to ensure accuracy, using the mesh simplification tool of the software to reduce the number of faces of the model to improve the efficiency of subsequent processing, using the irregularity detection tool to identify irregular parts in the model, using the irregularity repair tool to gradually repair irregular parts, using the smoothing tool to smooth the surface of the model to eliminate irregular traces that may be caused by manual operations, using the detail enhancement tool to restore or enhance the subtle features of the model, and after completing the cleaning and repair, the integrity, smoothness and detail performance of the model are checked as a whole, and the processed three-dimensional model is exported to a common file format for use in subsequent design software.

[0071] Specifically, a database is established by collecting the patient's treatment data, including image processing, which includes image scaling. The pixels of the image are adjusted by building a convolutional neural network. The neurons in each layer of the convolutional neural network are arranged in three dimensions: width, height and depth. For the input layer, the width and height refer to the width and height of the input image, and the depth represents the number of channels of the input image, which is calculated by the following formula:

[0072]

[0073] Among them, n out is the output size, n in is the input size, p is the padding size, f is the convolution kernel size, s is the convolution step size. The original image is scaled by combining the original image pixel input size with the padding size through the convolution neural network, and the width, height and depth of the original image are modified. After the original image is scaled, the clarity of the original image is guaranteed.

[0074] By collecting patient data and establishing a database, filtering the data in the database, filtering out the data in the database and establishing a new data set, including:

[0075]

[0076] Among them, Y(t) is the current comparison median data, (X(t)+X(t-1)+…+X(t-M+1)) is the sum of the data in the current database, and M is the number of data in the current database. By analyzing the output data at the current time point, the median of all the data in the database is calculated according to the number, and the comparison median data is compared with the current output data. According to the error range, it is determined whether the current data meets the collection requirements of the data set and recorded. After the patient's body data is processed, a 3D printer is used to make protective gear that fits the patient's body.

[0077] Specifically, the step 2 includes adjusting the outer contour of the protective gear according to the shape and functional requirements of the target body part to ensure that the protective gear can fully fit the body part to avoid friction during exercise or wearing, ensuring that the size of the protective gear meets individual needs based on the data in the three-dimensional model, making precise adjustments through the measuring tools of the CAD software, designing adjustable parts to adapt to the body shape changes of different users, selecting suitable materials according to the purpose of the protective gear to ensure good support and comfort, designing appropriate thickness in different parts, thickening the key stress-bearing areas, and appropriately thinning the weak parts to improve comfort, adding ventilation holes or mesh structures to the protective gear to promote air circulation and improve the wearer's comfort, adding anti-collision materials or structures to the key protection areas of the protective gear to improve the protection effect, embedding guide devices in the protective gear to help the wearer move or use the injured part correctly, adding support components in the support area to enhance the protection effect, using CAD software to perform virtual simulation tests, evaluate the performance of the protective gear under different motion states, and optimize the design.

[0078] Export the final design to the corresponding file format (such as STL, IGES, STEP, etc.) for subsequent 3D printing or CNC machining. Select the appropriate production process according to the material and structure of the protective gear, such as 3D printing, injection molding or hot pressing, to ensure product quality. Establish quality control standards to ensure the production of protective gear that meets the design requirements. Through the above steps and design focus, a comprehensive and personalized protective gear design can be carried out in the CAD software to meet the protection needs and meet the comfort and aesthetics of the wearer. After the design is completed, ensure sufficient verification and adjustment to obtain the best product effect.

[0079] Specifically, the step three includes selecting a file format suitable for 3D printing, selecting file export in the CAD software, and then saving the file in the selected format, adjusting the vertex resolution to control the accuracy of the model, setting the minimum and maximum lengths of the edges, ensuring that the model has sufficient details and is not too fine, resulting in a long printing time, using a dedicated 3D printing preparation software to import the model, performing integrity and geometry checks on the model, ensuring that all edges and faces are closed and correct, ensuring that faces do not cross or overlap, and filling any holes in the model to ensure the integrity of the print, and when problems are found, using the repair function in the 3D printing preparation software for automatic repair, or manually editing the model, selecting the target 3D printer model, setting printing parameters consistent with the printer, selecting a suitable nozzle diameter according to the material and printing accuracy requirements, confirming that the model size is within the range of the printing platform, scaling or block printing if necessary, setting the printing layer height between 0.1 mm and 0.3 mm, setting the internal filling density of the model, and previewing the sliced ​​model in the software, including the printing path, support structure, and time estimation of each layer, and adjusting the parameters according to the preview results to ensure the optimal printing process.

[0080] Specifically, step four includes using manual tools to remove the support structure to avoid damaging the main structure of the model. For water-soluble support materials, soak the print in water and wait for the support material to dissolve. Use sandpaper of different meshes to gradually polish the surface from coarse to fine. For small details and difficult-to-polish areas, use a sander or grinder for detailed processing. Use coarse sandpaper to polish the surface to remove obvious defects, support marks and layer patterns. Use finer sandpaper to gradually smooth the surface and improve the smoothness. After polishing, use a clean cloth or air pump to clean the surface dust and debris. Wash the print with warm water and non-corrosive detergent to remove dust and grease generated during the polishing process. Use a soft brush to gently brush the details of the model to ensure thorough cleaning. After cleaning, place the print in a well-ventilated place to dry naturally to avoid high temperature directly burning the surface. Choose varnish or spray paint suitable for the material to enhance the gloss and protection of the model surface. When using spray paint, keep the spray uniform and apply it evenly on the surface. Pay attention to the distance between the spray and the model. After the first layer of polish is dry, apply another layer as needed to enhance the gloss. Before assembly, check the connection parts of each component to ensure seamless connection. If necessary, perform small-scale polishing to ensure fit. For specific designs, use plug-in connection to connect components to improve assembly flexibility. After assembly, perform a wearing test to confirm the comfort and functionality of the protective gear.

[0081] Specifically, the step five includes selecting representative users for trial wearing, explaining to the users in detail the usage, wearing requirements and precautions of the protective gear, ensuring that the users can wear it correctly, encouraging the users to provide timely feedback on the comfort after the trial wearing, including whether there is friction, pressure or other discomfort, recording the user's description of the touch and tightness of the material, observing the fit of the protective gear on the user's body shape, confirming the fit of the shape and size of the protective gear with the user's body part, checking whether there is sliding or displacement, ensuring the stability of the protective gear during exercise, observing the performance of the protective gear during exercise, collecting users' feedback on the flexibility, support and other functions of the protective gear, and recording each user's feedback in detail, including text, photos and video materials. Feedback will be collected for subsequent analysis, and feedback will be classified into categories such as comfort issues, fit issues, and functional issues to facilitate targeted improvements. Feedback from all users will be analyzed to identify common problems. Issues of high importance or with a wide range of impact should be given priority. According to user feedback, improvements will be made by adjusting the overall size or local structure of the protective gear, modifying the design of the protective gear to better fit the user's shape, adding a more reasonable curvature design to joints such as elbows and knees, replacing or improving materials, choosing more comfortable materials, replacing materials inside the protective gear to increase skin comfort and avoid skin irritation, making modifications to the functional parts of the problem, and adding fillers to key areas to improve support and cushioning effects.

[0082] Based on the feedback and modification plan, update the CAD design file of the brace, and conduct necessary simulation tests to determine whether the material and strength are sufficient. Use the updated design to make a new prototype, considering using the same or different 3D printing materials. Invite the original user or new user to re-try the brace, focusing on the problems collected previously to confirm whether they have been improved. Record user feedback on the new prototype and evaluate whether there is a significant improvement in comfort, fit and other functionality. Organize the feedback from the second trial to confirm that the brace meets the performance standards in all aspects. Prepare to enter the small-scale production stage to ensure that all design improvements and user needs are implemented. Develop a detailed production plan, including material procurement, production process and quality control standards. After production is completed, attach a detailed instruction manual to explain the characteristics, usage and maintenance guide of the brace. Establish a user feedback channel and encourage users to provide feedback at any time during use to continue to optimize the product. Through the above steps, it can be ensured that necessary adjustments and modifications are made according to user trial feedback, and ultimately the comfort and functionality of the product are improved to meet user needs.

[0083] The working principle of the 3D printed protective gear and the production method for personalized customization based on human body characteristics of the present invention is as follows: a data acquisition device is used to collect the patient's body data and enter the data into the system to tailor the protective gear required by the patient; a protective gear printing device is arranged on a workbench, and the protective gear printing device prints the protective gear according to the data collected by the data acquisition device, and the protective gear that meets the requirements is customized by collecting and analyzing the patient's body data; a display device is arranged on the workbench, and the display device connects the protective gear printing device and the data acquisition device, and the display device is used to analyze the data collected by the data acquisition device and produce the protective gear according to the collected data, ensuring that every detail conforms to the principle of ergonomics, effectively reducing the wear and discomfort caused by inappropriate protective gear, while improving sports performance and safety, so that the user can enjoy comfort and protection in various environments. Double protection; by using 3D scanning equipment to scan the target body part, obtain 3D data, and manually adjust and verify the scan data with the assistance of manual measurement; according to the 3D model, design personalized protective gear in CAD software, including the selection and design of the shape, size, and thickness parameters of the protective gear, and add functional design as needed; convert the designed model into a file format supported by the 3D printer, and adjust the printing parameters according to the selected 3D printing equipment and materials; remove the support structure used in the printing process, polish, clean, and glaze the 3D printed parts to improve the surface quality and comfort, and assemble and test the protective gear composed of multiple parts; have users try on the protective gear to check its comfort, fit, and functional effect, and make necessary adjustments and modifications based on user feedback to ensure the comfort and functionality of the final product.

[0084] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A 3D printed protective gear customized based on human body characteristics, characterized in that: include: A workbench (1), wherein the workbench (1) is used for installing various components; A data acquisition device (2), the data acquisition device (2) being arranged on the workbench (1), and being used for collecting the patient's physical data and entering the data into a system so as to tailor protective gear to the patient's needs; A protective gear printing device (3), the protective gear printing device (3) being arranged on the workbench (1), the protective gear printing device (3) being connected to the data acquisition device (2), the protective gear printing device (3) printing the protective gear according to the data acquired by the data acquisition device (2), and customizing the protective gear that meets the requirements by acquiring and analyzing the patient's body data; A display device (4), the display device (4) is arranged on the workbench (1), the display device (4) is connected to the protective gear printing device (3) and the data acquisition device (2), and the display device (4) is used to analyze the data collected by the data acquisition device (2) and produce the protective gear according to the collected data.

2. The 3D printed protective gear customized based on human body characteristics according to claim 1, characterized in that: The data acquisition device (2) comprises a collection frame (21), a fixing seat (22) and a collection sensor (23); the collection frame (21) is arranged on one side of the workbench (1); the fixing seat (22) is arranged at the bottom end of the workbench (1) and is used for positioning a patient; and the collection sensor (23) is arranged on the collection frame (21) and scans and collects body data of the patient.

3. The 3D printed protective gear customized based on human body characteristics according to claim 1, characterized in that: The protective gear printing device (3) comprises a printing box (31), a 3D printer (32) and a printing table (33); the printing box (31) is arranged on one side of the workbench (1); an observation window is arranged on the printing box (31); the 3D printer (32) is arranged in the printing box (31); the printing table (33) is arranged along the base of the printing box (31); the 3D printer (32) performs 3D printing of the protective gear along the printing table (33); the display device (4) is arranged on the workbench (1); the display device (4) comprises a display and a host (41); the display is arranged on the workbench (1); the host (41) is arranged along the workbench (1) and is electrically connected to the display (42); the host (41) is connected to the acquisition sensor (23) to process the acquired data and display it on the display (42).

4. A manufacturing method, applied to the 3D printed protective gear customized based on human body characteristics as described in any one of 1-3 above, characterized in that: include: Step 1: Use a 3D scanning device to scan the target body part, obtain 3D data, and manually adjust and verify the scanned data through manual measurement; Step 2: Based on the 3D model, design the personalized protective gear in CAD software, including the selection and design of the shape, size, and thickness parameters of the protective gear, and add functional design as needed; Step 3: Convert the designed model into a file format supported by the 3D printer, and adjust the printing parameters according to the selected 3D printing equipment and materials; Step 4: Remove the support structure used in the printing process, polish, clean and glaze the 3D printed parts to improve the surface quality and comfort, and assemble and test the protective gear composed of multiple parts; Step 5: Have users try on the protective gear to check its comfort, fit and functional effects, and make necessary adjustments and modifications based on user feedback to ensure that the final product is comfortable and functional.

5. The method according to claim 4, characterized in that: In the step 1, the status of the scanning device is confirmed, the scanned body part is cleaned, dirt or sweat that affects the scanning accuracy is removed, the scanned person is ensured to be in a correct posture so that the part to be scanned is exposed, a bracket or other auxiliary tools are used to fix the scanned person to reduce errors caused by movement, the target part is scanned in all directions using a 3D scanner to ensure that the scan covers all details of the target part and avoids blind spots and shadows, key dimensions are manually measured using a tape measure, caliper or other measuring tools, the dimensions of the target part are recorded, the manually measured data is compared with the 3D data generated by the scan, and the accuracy of the scan data, including shape, proportion and size, is confirmed using 3D scanning software, the manually measured data is input and calibrated with the scan data, the existing errors are corrected, the accuracy of the 3D model is ensured, the noise and redundant parts in the scan data are cleaned, the details that were not captured during the scanning process are corrected, and the integrity of the model is ensured, the calibrated 3D model is preliminarily checked using professional software to confirm that it conforms to the actual body geometry, the preliminary model is verified with the target user, its accuracy and applicability are confirmed by comparison, trial wearing or other methods, and final adjustments and modifications are made based on user feedback to ensure that the 3D data is accurate.

6. The method according to claim 5, characterized in that: The data processing in step 1 includes importing the 3D data file generated by the scanner into professional software, and after importing, preliminarily checking whether the data has obvious noise, missing or irregular parts, using the noise detection tool of the software to identify the noise in the data, using the smoothing or denoising tool to gradually remove the noise points, using the hole detection tool of the software to identify the holes or missing parts in the model, using the automatic filling or manual filling tool to fill the holes, and for complex or critical parts, manual operations are performed to ensure accuracy, using the mesh simplification tool of the software to reduce the number of faces of the model to improve the efficiency of subsequent processing, using the irregular detection tool to identify irregular parts in the model, using the irregular repair tool to gradually repair the irregular parts, using the smoothing tool to smooth the surface of the model to eliminate irregular traces that may be caused by manual operations, using the detail enhancement tool to restore or enhance the subtle features of the model, and after completing the cleaning and repair, the integrity, smoothness and detail performance of the model are checked as a whole, and the processed three-dimensional model is exported to a common file format for use in subsequent design software.

7. The manufacturing method according to claim 6, characterized in that: The step 2 includes adjusting the outer contour of the protective gear according to the shape and functional requirements of the target body part to ensure that the protective gear can fully fit the body part to avoid friction during exercise or wearing, ensuring that the size of the protective gear meets individual needs based on the data in the three-dimensional model, making precise adjustments through the measuring tools of the CAD software, designing adjustable parts to adapt to the body shape changes of different users, selecting suitable materials according to the purpose of the protective gear to ensure good support and comfort, designing appropriate thickness in different parts, thickening the key stress-bearing areas, and appropriately thinning the weak parts to improve comfort, adding ventilation holes or mesh structures to the protective gear to promote air circulation and improve the wearer's comfort, adding anti-collision materials or structures to the key protection areas of the protective gear to improve the protection effect, embedding guide devices in the protective gear to help the wearer move or use the injured part correctly, adding support components in the support area to enhance the protection effect, using CAD software to perform virtual simulation tests, evaluate the performance of the protective gear in different motion states, and optimize the design.

8. The manufacturing method according to claim 6, characterized in that: The step three includes selecting a file format suitable for 3D printing, selecting file export in the CAD software, and then saving the file in the selected format, adjusting the vertex resolution to control the accuracy of the model, setting the minimum and maximum lengths of the edges, ensuring that the model has sufficient details while not being too fine, resulting in a long printing time, using a dedicated 3D printing preparation software to import the model, performing integrity and geometry checks on the model, ensuring that all edges and faces are closed and correct, ensuring that faces do not cross or overlap, and filling any holes in the model to ensure the integrity of the print, and when problems are found, using the repair function in the 3D printing preparation software for automatic repair, or manually editing the model, selecting the target 3D printer model, setting printing parameters consistent with the printer, selecting a suitable nozzle diameter according to the material and printing accuracy requirements, confirming that the model size is within the range of the printing platform, scaling or block printing if necessary, setting the printing layer height between 0.1 mm and 0.3 mm, setting the internal filling density of the model, and previewing the sliced ​​model in the software, including the printing path, support structure, and time estimation of each layer, and adjusting the parameters according to the preview results to ensure the optimal printing process.

9. The manufacturing method according to claim 8, characterized in that: The step 4 includes using manual tools to remove the support structure to avoid damaging the main structure of the model. For water-soluble support materials, soak the print in water and wait for the support material to dissolve. Use sandpaper of different meshes to gradually polish the surface from coarse to fine. For small details and difficult-to-polish areas, use a sander or grinder for detailed processing. Use coarse sandpaper to polish the surface to remove obvious defects, support marks and layer patterns. Use finer sandpaper to gradually smooth the surface and improve the smoothness. After polishing, use a clean cloth or air pump to clean the surface dust and debris. Wash the print with warm water and non-corrosive detergent to remove dust and grease generated during the polishing process. Use a soft brush to gently brush the details of the model to ensure thorough cleaning. After cleaning, place the print in a well-ventilated place to dry naturally to avoid high temperature directly burning the surface. Choose varnish or spray paint suitable for the material to enhance the gloss and protection of the model surface. When using spray paint, keep the spray uniform and apply it evenly on the surface. Pay attention to the distance between the spray and the model. After the first layer of polish is dry, apply another layer as needed to enhance the gloss. Before assembly, check the connection parts of each component to ensure seamless connection. If necessary, perform small-scale polishing to ensure fit. For specific designs, use plug-in connection to connect components to improve assembly flexibility. After assembly, perform a wearing test to confirm the comfort and functionality of the protective gear.

10. The manufacturing method according to claim 8 is characterized in that, step five includes selecting representative users for trial wearing, explaining in detail to the users the usage, wearing requirements and precautions of the protective gear to ensure that the users can wear it correctly, encouraging the users to provide timely feedback on the comfort after the trial wearing, including whether there is friction, pressure or other discomfort, recording the user's description of the touch and tightness of the material, observing the fit of the protective gear on the user's body shape, confirming the shape and size of the protective gear and the fit of the user's body parts, checking whether there is sliding or displacement, ensuring the stability of the protective gear during exercise, observing the performance of the protective gear during exercise, collecting users' feedback on the flexibility, support and other functions of the protective gear, and recording each user's feedback in detail, including Include text, photos and video materials for subsequent analysis, classify feedback content, such as comfort issues, fit issues and functional issues, to facilitate targeted improvements, analyze all user feedback, identify common problems, and give priority to issues of high importance or wide impact. According to user feedback, make improvements by adjusting the overall size or local structure of the protective gear, modify the design of the protective gear to make it more fit the user's shape, add a more reasonable curvature design to joints such as elbows and knees, replace or improve materials, choose more comfortable materials, replace materials inside the protective gear to increase skin comfort and avoid skin irritation, make modifications to the functional part of the problem, and add fillers to key areas to improve support and cushioning effects.

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