Force-controlled automatic microassembly of tissue engineering scaffolds

Zhao, Guoyong, Teo, Chee Leong, Hutmacher, Dietmar W., & Burdet, Etienne (2010) Force-controlled automatic microassembly of tissue engineering scaffolds. Journal of Micromechanics and Microengineering, 20(3).

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This paper presents an automated system for 3D assembly of tissue engineering (TE) scaffolds made from biocompatible microscopic building blocks with relatively large fabrication error. It focuses on the pin-into-hole force control developed for this demanding microassembly task. A beam-like gripper with integrated force sensing at a 3 mN resolution with a 500 mN measuring range is designed, and is used to implement an admittance force-controlled insertion using commercial precision stages. Visual-based alignment followed by an insertion is complemented by a haptic exploration strategy using force and position information. The system demonstrates fully automated construction of TE scaffolds with 50 microparts whose dimension error is larger than 5%.

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6 citations in Scopus
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4 citations in Web of Science®

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ID Code: 33255
Item Type: Journal Article
Refereed: Yes
DOI: 10.1088/0960-1317/20/3/035001
ISSN: 0960-1317
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2010 IOP Science
Deposited On: 26 Jul 2010 22:09
Last Modified: 29 Feb 2012 14:27

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