TY - GEN
T1 - Orthosis design system for malformed ears based on spline approximation
AU - Hanafusa, Akihiko
AU - Isomura, Tsuneshi
AU - Sekiguchi, Yukio
AU - Takahashi, Hajime
AU - Dohi, Takeyoshi
N1 - Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2002.
PY - 2002
Y1 - 2002
N2 - 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.
AB - 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.
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U2 - 10.1007/3-540-45787-9_29
DO - 10.1007/3-540-45787-9_29
M3 - Conference contribution
AN - SCOPUS:33748973491
SN - 3540442251
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 227
EP - 234
BT - Medical Image Computing and Computer-Assisted Intervention - 5th International Conference, MICCAI 2002, Proceedings
A2 - Dohi, Takeyoshi
A2 - Kikinis, Ron
PB - Springer Verlag
T2 - 5th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2002
Y2 - 25 September 2002 through 28 September 2002
ER -