Contact force evaluation of orthoses for the treatment of malformed ears

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

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In most cases, malformed ears of neonates can be effectively treated by fitting a suitably shaped orthosis. In this study, a finite element analysis system was developed to evaluate the contact force between the orthosis and auricle. In order to reduce the contact force, two methods for modifying orthosis shape were developed. One entailed the addition of a detour curve, while the other canceled out the insertion of the nodal point where maximum force exceeded the limit during the incremental step of finite element analysis. Moreover, two small sensors were developed, one using a silicon tube and the other a strain gauge, for mounting on the orthosis and measuring contact force. Straight, curved and maximum force-restricted orthoses were manufactured for an adult auricle. Simulation and insertion experiments using silicon tube and strain gauge sensors were performed. Results demonstrated that the strength of contact force between the orthosis and auricle decreased from straight type, through curved type to the maximum force-restricted type.

本文言語English
ホスト出版物のタイトルMedical Image Computing and Computer-Assisted Intervention - MICCAI 2002 - 5th International Conference, Proceedings
編集者Takeyoshi Dohi, Ron Kikinis
出版社Springer Verlag
ページ224-231
ページ数8
ISBN(印刷版)9783540457862
DOI
出版ステータスPublished - 2002
外部発表はい
イベント5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002 - Tokyo, Japan
継続期間: 2002 9 252002 9 28

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
2488
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Other

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

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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