Method for manufacturing 3D printing medical model

Abstract

The invention discloses a method for manufacturing a 3D printing medical model, which comprises the following steps of: acquiring detailed structure information of a specific part of a patient by adopting high-precision medical imaging equipment; converting the acquired two-dimensional medical image data into a three-dimensional digital model by utilizing three-dimensional reconstruction software, and in the reconstruction process, accurately distinguishing different tissues and organs by adopting image segmentation to generate a three-dimensional grid; smoothing the reconstructed three-dimensional digital model, and scaling and rotating the model as required to adapt to the requirement of 3D printing; the method has the beneficial effects that through high-precision medical image data acquisition and three-dimensional model reconstruction, the accuracy and integrity of a medical model are ensured; through model optimization and 3D printing parameter setting, the printing quality and efficiency are improved, and the manufacturing cost is reduced; the completeness of the post-treatment process enables the appearance, the hand feeling, the safety and the like of the medical model to be remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D printing medical model manufacturing, and specifically relates to a method for manufacturing a 3D printing medical model. Background Art

[0002] 3D printing technology can tailor medical devices and prostheses, such as personalized orthopedic implants and prostheses, according to individual differences in patients, greatly improving the accuracy and personalization of treatment; the accuracy of 3D printed products can reach 0.01mm, ensuring that the medical model is highly consistent with the patient's actual physiological structure, thereby improving the treatment effect; 3D printed guides, brackets and other auxiliary tools can help doctors position and operate more accurately during surgery, reducing surgical complications.

[0003] The patent discloses a medical model based on 3D printing and a method for making the same, the medical model being a transnasal skull base surgery medical model, the method comprising the following steps: constructing a three-dimensional digital model of a target bone; extracting a preset number of sub-models of the target bone according to the three-dimensional digital model of the target bone and a preset extraction position; repairing holes in each sub-model of the target bone; constructing a three-dimensional digital model of a mold, the mold being used to make a physical model of a target soft tissue / organ; performing 3D printing according to the repaired sub-model of the target bone and the three-dimensional digital model of the mold to obtain a physical model of the target bone and a mold of the target soft tissue / organ; and making a physical model of the target soft tissue / organ based on the mold obtained by 3D printing. Although the patent provides a medical model based on 3D printing and a method for making the same, the method still has room for improvement in terms of model construction, printing and post-processing, especially in terms of the accuracy of data acquisition, the accuracy of three-dimensional model reconstruction, the setting of printing parameters and the perfection of post-processing process. There is still a need for further improvement. Summary of the invention

[0004] The purpose of the present invention is to provide a method for manufacturing a 3D printed medical model, which ensures the accuracy and integrity of the medical model; improves printing quality and efficiency, and reduces manufacturing costs.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for manufacturing a 3D printed medical model, comprising the following steps:

[0006] Use high-precision medical imaging equipment to obtain detailed structural information of specific parts of the patient;

[0007] The collected two-dimensional medical image data is converted into a three-dimensional digital model using three-dimensional reconstruction software. During the reconstruction process, image segmentation is used to accurately distinguish different tissues and organs and generate a three-dimensional grid;

[0008] Smooth the reconstructed three-dimensional digital model, and scale and rotate the model as needed to meet the requirements of 3D printing;

[0009] According to the specific requirements of the medical model, select 3D printing technology and materials and set printing parameters;

[0010] Import the optimized 3D digital model data into the 3D printer and start the printing process. During the printing process, monitor the printing status in real time to ensure the printing quality and progress;

[0011] The printed medical models are dyed and coated to improve the appearance and feel of the models; the models are disinfected as needed to ensure their safety and reliability in medical environments; the models are assembled and debugged to ensure the coordination and functionality of the various components.

[0012] As a preferred technical solution of the present invention, a method of obtaining detailed structural information of a specific part of a patient using high-precision medical imaging equipment includes computer tomography, magnetic resonance imaging, and ultrasonic scanning.

[0013] As a preferred technical solution of the present invention, the process of converting two-dimensional medical image data into a three-dimensional digital model using three-dimensional reconstruction software first requires importing the collected two-dimensional image data into the software, and then the software uses image segmentation technology to accurately distinguish between different tissues and organs by identifying the density and shape differences between them; after the tissues and organs are correctly segmented, the software uses this information to generate a three-dimensional grid, which represents the three-dimensional shape and structure of the corresponding part of the patient's body.

[0014] As a preferred technical solution of the present invention, identifying the density and shape differences between different tissues and organs requires manual intervention or automated algorithms.

[0015] As a preferred technical solution of the present invention, a method for smoothing the reconstructed three-dimensional digital model includes removing noise and defects.

[0016] As a preferred technical solution of the present invention, the smoothing process uses filtering and smooth surface generation.

[0017] As a preferred technical solution of the present invention, a method for real-time monitoring of the printing status during the printing process to ensure the printing quality and progress involves using a built-in monitoring system of a 3D printer.

[0018] As a preferred technical solution of the present invention, the printing parameters include layer thickness, printing speed, and filling rate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The accuracy and completeness of the medical model are ensured through high-precision medical imaging data acquisition and 3D model reconstruction;

[0021] Through model optimization and 3D printing parameter setting, the printing quality and efficiency are improved and the manufacturing cost is reduced;

[0022] The perfection of post-processing technology has significantly improved the appearance, feel and safety of medical models;

[0023] The method of the present invention is applicable to the production of various medical models and has broad application prospects and market demands. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a flow chart of the method for manufacturing a 3D printed medical model of the present invention. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1

[0027] See also Figure 1 , which is the first embodiment of the present invention, provides a method for manufacturing a 3D printed medical model, comprising the following steps:

[0028] Use high-precision medical imaging equipment to obtain detailed structural information of specific parts of the patient;

[0029] The collected two-dimensional medical image data is converted into a three-dimensional digital model using three-dimensional reconstruction software. During the reconstruction process, image segmentation is used to accurately distinguish different tissues and organs and generate a three-dimensional grid;

[0030] Smoothing the reconstructed 3D digital model includes removing noise and defects. Smoothing can use various algorithms and techniques, such as filtering and smooth surface generation, to reduce or eliminate these imperfect parts. In addition, the model can be scaled, rotated, etc. as needed to better meet the requirements of 3D printing.

[0031] According to the specific requirements of the medical model, select 3D printing technology and materials, and set printing parameters; select the most suitable 3D printing technology according to the size, shape, complexity and required accuracy of the model; select printing materials according to the purpose of the model and the working environment; set printing parameters such as layer thickness, printing speed, filling rate, etc. according to the characteristics of the selected technology and materials to ensure that the printed model meets the requirements of medical applications;

[0032] Import the optimized 3D digital model data into the 3D printer and start the printing process. During the printing process, monitor the printing status in real time to ensure the printing quality and progress;

[0033] The printed medical models are dyed and coated to improve the appearance and feel of the models; the models are disinfected as needed to ensure their safety and reliability in medical environments; the models are assembled and debugged to ensure the coordination and functionality of the various components.

[0034] In this embodiment, preferably, the method of using high-precision medical imaging equipment to obtain detailed structural information of specific parts of the patient involves the use of computed tomography, magnetic resonance imaging, and ultrasonic scanning; these devices can generate detailed two-dimensional images of specific parts of the patient's body; doctors or technicians operate these devices to scan the specific parts that need to be modeled, thereby obtaining high-precision medical imaging data.

[0035] In this embodiment, preferably, the process of converting two-dimensional medical image data into a three-dimensional digital model using three-dimensional reconstruction software first requires importing the collected two-dimensional image data into the software; then, the software uses image segmentation technology to accurately distinguish different tissues and organs by identifying the density, shape or other characteristic differences between them. This step requires manual intervention or advanced automated algorithms to improve accuracy; once the tissues and organs are correctly segmented, the software can use this information to generate a three-dimensional grid that represents the three-dimensional shape and structure of the corresponding part of the patient's body.

[0036] In this embodiment, preferably, the method of real-time monitoring of the printing status during the printing process to ensure the printing quality and progress involves using a built-in monitoring system of the 3D printer.

[0037] Example 2

[0038] See also Figure 1 , which is the second embodiment of the present invention, is based on the previous embodiment, except that:

[0039] The method of dyeing and coating the printed medical models involves the use of special dyes or coatings to enhance the look and feel of the models; dyeing can make the models easier to visually identify, while coating can provide additional smoothness, durability or anti-fouling properties; these processing steps can be performed after printing is completed, and the appropriate processing method needs to be selected based on the characteristics of the dyes or coatings used; during the processing process, it is also necessary to ensure that the materials used are safe and will not cause harm to patients or medical staff.

[0040] Although the embodiments of the present invention have been shown and described, as detailed above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing a 3D printed medical model, characterized in that: The steps include: Use high-precision medical imaging equipment to obtain detailed structural information of specific parts of the patient; The collected two-dimensional medical image data is converted into a three-dimensional digital model using three-dimensional reconstruction software. During the reconstruction process, image segmentation is used to accurately distinguish different tissues and organs and generate a three-dimensional grid; Smooth the reconstructed three-dimensional digital model, and scale and rotate the model as needed to meet the requirements of 3D printing; According to the specific requirements of the medical model, select 3D printing technology and materials and set printing parameters; Import the optimized 3D digital model data into the 3D printer and start the printing process. During the printing process, monitor the printing status in real time to ensure the printing quality and progress; The printed medical models are dyed and coated to improve the appearance and feel of the models; the models are disinfected as needed to ensure their safety and reliability in medical environments; the models are assembled and debugged to ensure the coordination and functionality of the various components.

2. The method for manufacturing a 3D printed medical model according to claim 1, characterized in that: Methods of obtaining detailed structural information of specific parts of a patient using high-precision medical imaging equipment include computed tomography, magnetic resonance imaging, and ultrasound scanning.

3. The method for manufacturing a 3D printed medical model according to claim 1, characterized in that: The process of converting two-dimensional medical image data into a three-dimensional digital model using three-dimensional reconstruction software first requires importing the collected two-dimensional image data into the software. Then, the software uses image segmentation technology to accurately distinguish between different tissues and organs by identifying the density and shape differences between them. After the tissues and organs are correctly segmented, the software uses this information to generate a three-dimensional grid that represents the three-dimensional shape and structure of the corresponding part of the patient's body.

4. The method for manufacturing a 3D printed medical model according to claim 3, characterized in that: Identifying differences in density and shape between different tissues and organs requires human intervention or automated algorithms.

5. The method for manufacturing a 3D printed medical model according to claim 1, characterized in that: The method of smoothing the reconstructed three-dimensional digital model includes removing noise and defects.

6. The method for manufacturing a 3D printed medical model according to claim 5, characterized in that: The smoothing process uses filtering and smooth surface generation.

7. The method for manufacturing a 3D printed medical model according to claim 1, characterized in that: The method of monitoring the printing status in real time during the printing process to ensure the printing quality and progress involves using the built-in monitoring system of the 3D printer.

8. The method for manufacturing a 3D printed medical model according to claim 1, characterized in that: The printing parameters include layer thickness, printing speed, and filling rate.

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