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IJAT Vol.2 No.3 pp. 156-161
doi: 10.20965/ijat.2008.p0156
(2008)

Paper:

Trial Formation of Artificial Bone by Inkjet Powder-Layered Manufacturing

Kenji Yamazawa* , Masahiro Anzai* , Hideo Yokota** , Ryutaro Himeno**, Hiroshi Suzuki*** , Hiroyuki Narahara*** , and Shigeki Suzuki****

* Advanced Engineering Team, Advanced Development and Supporting Center, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan

** Computational Biomechanics Unit, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan

*** Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka-shi, Fukuoka, 820-8502, Japan

**** NEXT21 K.K., 3-38-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

Received:
February 7, 2008
Accepted:
February 22, 2008
Published:
May 5, 2008
Keywords:
artificial bone, inkjet, layered manufacturing, rapid prototyping, calcium phosphate
Abstract

Artificial bone implants are in relatively simple shapes for use mainly by cutting or manually. To produce a desired bone shape, we used tribasic calcium phosphate bone ash powder as the material and aqueous sodium chondroitin sulfate solution as the binder in inkjet powder-layered manufacturing. In experiments, we reproduced a rabbit femur with a precision of 0.6 mm and a minimum longitudinal hollow shaft 2 mm in diameter based on computed tomography data. We gave the brittle artificial bone a compressive strength of 3 MPa by dipping it in water and binder through its hydrate reaction.

Cite this article as:
Kenji Yamazawa, Masahiro Anzai, Hideo Yokota, Ryutaro Himeno, Hiroshi Suzuki, Hiroyuki Narahara, and Shigeki Suzuki, “Trial Formation of Artificial Bone by Inkjet Powder-Layered Manufacturing,” Int. J. Automation Technol., Vol.2, No.3, pp. 156-161, 2008.
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