Orthosis design system for malformed ears based on spline approximation

Akihiko Hanafusa, Tsuneshi Isomura, Yukio Sekiguchi, Hajime Takahashi, Takeyoshi Dohi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Malformed ears of neonates can be effectively treated by employing an orthosis of suitable shape. Currently, we use orthoses made of nitinol shape memory alloy wire and have developed a computer-assisted design system to manufacture the orthosis. Using this method, extracted contours of the helix and auriculotemporal sulcus are approximated to spline, and orthosis shape can be designed by moving the control points of spline with reference to control points of the target auricular shape. The system also functions to evaluate the contact force between the orthosis and auricle. Using this system, orthoses were designed and manufactured for 16 patients with malformed ears. Treatment was more effective in cases where it was necessary to extend the helix.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
PublisherSpringer Verlag
Pages227-234
Number of pages8
Volume2489
ISBN (Print)3540442251
Publication statusPublished - 2002
Externally publishedYes
Event5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002 - Tokyo, Japan
Duration: 2002 Sep 252002 Sep 28

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume2489
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002
CountryJapan
CityTokyo
Period02/9/2502/9/28

Fingerprint

Splines
Shape memory effect
Wire

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Hanafusa, A., Isomura, T., Sekiguchi, Y., Takahashi, H., & Dohi, T. (2002). Orthosis design system for malformed ears based on spline approximation. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 2489, pp. 227-234). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2489). Springer Verlag.

Orthosis design system for malformed ears based on spline approximation. / Hanafusa, Akihiko; Isomura, Tsuneshi; Sekiguchi, Yukio; Takahashi, Hajime; Dohi, Takeyoshi.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2489 Springer Verlag, 2002. p. 227-234 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2489).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hanafusa, A, Isomura, T, Sekiguchi, Y, Takahashi, H & Dohi, T 2002, Orthosis design system for malformed ears based on spline approximation. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 2489, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 2489, Springer Verlag, pp. 227-234, 5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002, Tokyo, Japan, 02/9/25.
Hanafusa A, Isomura T, Sekiguchi Y, Takahashi H, Dohi T. Orthosis design system for malformed ears based on spline approximation. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2489. Springer Verlag. 2002. p. 227-234. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
Hanafusa, Akihiko ; Isomura, Tsuneshi ; Sekiguchi, Yukio ; Takahashi, Hajime ; Dohi, Takeyoshi. / Orthosis design system for malformed ears based on spline approximation. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2489 Springer Verlag, 2002. pp. 227-234 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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