Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
권호 표지
DOI QR코드

DOI QR Code

Convergent Study of Personalized Modeling and 5-Axis Machining Technology Using Patellofemoral Bone DICOM Image

넙다리무릎뼈 의료용 디지털 영상 및 통신 표준 영상을 이용한 맞춤형 모델링과 5축 가공기술의 융합적 연구

  • Received : 2018.08.13
  • Accepted : 2018.11.20
  • Published : 2018.11.28
Download PDF
⟨ Previous Next ⟩

Abstract

DICOM images of patellofemoral bones were converted into a stereolithography file, and a Unigraphics CAD program was used to create a CAD modeling in which there exists point, line and facet information. The modeling extraction of joint facets was performed by linking two adjacent points into lines in the stereolithography file by using the Unigraphics rapid spacing function and then linking the lines into facets to complete the entire modeling. This modeling extraction was performed based on the anatomical knowledge of joint facet directions. As a result, a personalized space modeling and solid modeling were produced for the joint facets of patellofemoral bones. This was followed by a CAM control computing operation of solid modeling on graphite materials and 5-axis machining of patellofemoral bones. That is the description of a method for a personalized implant modeling by using DICOM images of patellofemoral bones.

넙다리무릎뼈 의료용 디지털 영상 및 통신 표준 영상으로 스테레오리소그래피 파일을 변환하고, 유니그래픽스 캐드프로그램으로 점, 선, 면의 정보들이 존재하는 캐드 모델링을 만들었다. 관절면의 모델링 추출은 유니그래픽스 라피드 스페싱 기능으로 스테레오리소그래피의 가까운 두 점을 선으로 이어주고 그 선들을 이어 면을 만들어 모델링을 완성하였다. 이러한 모델링 추출과정은 관절면 방향에 대한 해부학적 지식을 바탕으로 하였다. 그 결과 넙다리무릎뼈의 관절면에 대해 맞춤형 스페이스 모델링과 솔리드 모델링을 제작할 수 있었다. 이후 흑연소재에 대해 솔리드 모델링을 캠 제어하는 연산 작업을 거쳐 넙다리무릎뼈의 5축 형상 가공을 하였다. 이로써 넙다리무릎뼈의 의료용 디지털 영상 및 통신 표준영상을 이용한 개인 맞춤형 인플란트 모델링 방법이 기술되었다.

Keywords

OHHGBW_2018_v9n11_137_f0001.png 이미지

Fig. 1. DICOM volume data of Patellofemoral bones and volume rendering images.

OHHGBW_2018_v9n11_137_f0002.png 이미지

Fig. 2. A shape of patellofemoral bone extracted in the 3D image

OHHGBW_2018_v9n11_137_f0003.png 이미지

Fig. 3. Computer Tomography equipment & 5-axis machining unit[3]

OHHGBW_2018_v9n11_137_f0004.png 이미지

Fig. 4. A modeling process of the surface of a joint facet using the Unigraphics program(yellow arrowhead)

OHHGBW_2018_v9n11_137_f0005.png 이미지

Fig. 5. A process of designing surface modeling with solid modeling and confirming the designed surface modeling

OHHGBW_2018_v9n11_137_f0006.png 이미지

Fig. 6. Setting facets for solid modeling machining, a CAM control tool and 5-axis machining shapes

OHHGBW_2018_v9n11_137_f0007.png 이미지

Fig. 7. A process of 5-axis machining that uses graphite materials and the tools used

Table 1. Machining materials, tools and machining methods

OHHGBW_2018_v9n11_137_t0001.png 이미지

Table 2. Comparison of the Computer Aided Manufacturing(CAM) work computation time for the modeling

OHHGBW_2018_v9n11_137_t0002.png 이미지

References

  1. Y. M. Shin. (2017). 3D Printing Medical Application, Proceedings of the Medical Society of fusion for 3D printing 2017, 50-52.
  2. Ferreira. A, F. Gentil & J. M. R. S. Tavares. (2014). Segmentation algorithms for ear image data towards biomechanical studies, Computer Methods in Biomechanics and Biomedical Engineering, 17(8), 888-904. DOI : https://doi.org/10.1080/10255842.2012.723700
  3. J. H. Yoon, T. J. Ji, J. Yoon & H. G. Kim. (2017). A Convergence Study on the 5-axis Machining Technology using the DICOM Image of the Humerus Bone, Journal of the Korea Convergence Society, 8(11), 115-121. DOI : http://www.riss.kr/link?id=A103842954 https://doi.org/10.15207/JKCS.2017.8.11.115
  4. I. H. Jeong & S. B. Koo. (2013). Human body internal / external load analysis using human body musculoskeletal simulation, Journal of the Korean Society of Mechanical Engineers, 53(8), 34-37.
  5. I. S. Jeon, J. Y. Bae & D, S, Kwak. (2013). Quantification of lateral ligament major deformation by lateral ligament incision in total knee arthroplasty, Journal of the Korean Society of Mechanical Engineers, 53(8), 38-42.
  6. Y. Choi & J. P. Park. (1999). Reverse Engineering System Based on 3D Digitizer, Journal of the Korea Society of Precision Engineering, 16(4), 102-109. DOI : http://www.riss.kr/link?id=A76289919
  7. G. H. Kwak & S. W. Park. (2013). Globale 3D printer industrie Technologie Trend analyse, Journal of the KSME, 53(10), 58-64.
  8. http://pharos101.blog.me/220054019338
  9. H. Y. Kwak & J. S. Huh. (2014). Extract and Analysis System for CT/MRI Images, Journal of the Korea Society of Computer and Information, 19(1), 131-140. DOI : http://www.riss.kr/link?id=A101701550 https://doi.org/10.9708/jksci.2014.19.1.131
  10. https://en.wikipedia.org/wiki/DICOM
  11. J. W. Choi & H. C. Kim. (2016). 3D Printing Technologies - A Review, Journal of the Korean Society of Manufacturing Process Engineers, 14(3), 1-8. DOI : http://www.riss.kr/link?id=A100566416 https://doi.org/10.14775/ksmpe.2015.14.3.001
  12. B. S. Go. (2017). Clinical Application of Three-Dimensional Printing Technology in Breast Surgery, Proceedings of the Medical Society of fusion for 3D printing 2017, 24-25.
  13. H. G. Kim. (2017). A Novel Modeling Method for Manufacturing Hearing Aid Using 3D Medical Images, Journal of Radiological Science and Technology, 39(2), 259-264. DOI : https://doi.org/10.17946/jrst.2016.39.2.15
  14. http://www.kcons.or.kr/CmsHome/MainDefault.aspx.
  15. https://en.wikipedia.org/wiki/IGES
  16. N. H. Kim (2012). Selection of the Optimal Machining Condition for a High-hardness Resin using the 5-axis Machine, The Korean Society of Manufacturing Process Engineers, 11(5), 29-34. DOI : http://www.riss.kr/link?id=A100404939
  17. B. Sanghera, S. Naique & Y. Papaharilaou. (2001). Preliminary study of rapid prototypes models, Rapid prototyping Journal, 7(5), 275-284. DOI : https://doi.org/10.1108/13552540110410486
  18. G. H. Kwak & S. W. Park. (2013). Globale 3D printer industrie Technologie Trend analyse, Journal of the KSME, 53(10), 58-64.
  19. K. B. Kim & E. H. Goo. (2016). Image Evaluation for A Kind of Patient Fixing Pad in 64 Multi-Channel Detector Computed Tomography, Journal of the Korea Convergence Society, 7(1), 89-95. DOI : https://doi.org/10.15207/jkcs.2016.7.1.089
  20. J. Y. Jeong, P. K. Kim, H. J. Lee & C. S. Shin. (2013). Introduction and research trend of human musculoskeletal model, Journal of the Korean Society of Mechanical Engineers, 53(8), 28-33.