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Biomodelling Using Rapid Prototyping. Dr. Ian Gibson Centre for Advanced Product Development Technologies (CAPDT) Dept. Mechanical Engineering The University of Hong Kong. Slice data. Medical data often generated in slices (CT, MRI) RP data converted into slices. - PowerPoint PPT Presentation
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Biomodelling Using Rapid Prototyping
Dr. Ian Gibson
Centre for Advanced Product Development Technologies (CAPDT)
Dept. Mechanical Engineering
The University of Hong Kong
Slice data
• Medical data often generated in slices (CT, MRI)
• RP data converted into slices
Segmentation of CT scan data, Materialise, Belgium
Form (model visualisation)
Chromosome modelling, Finland
Child’s skull, Leeds Univ.
Form and fit (remodelling)
Osteotomy planning of recosntruction for Goldenhar syndrome patient, Dr. B. Vanassche, Belgium
Fit (assemblies)
Hip replacement, Leeds University, UK
Skull plate, QMI, Australia
Function (actual parts)
Custom inplants, Innova, US
Artificial ears, QMI, Australia
Other related applications
Paleontology - Juvenile Diprotodontid Skull BioModel, QMI, Australia Legal - personal injury,
malpractice- cracked skull, Innova, US
Informed consent, arteries at the base of brain, QMI
Projects at HKU
Development of an artificial finger joint
Distracter
The use of RP models in oral and maxillofacial surgery
Intelligent Interpretation of CT Contour Data
Set of CTimages
ContoursExtracted
ReconstructedSolid Model
ImageProcessing:1.FuzzyMultilevelThresholding2.MorphologicalEdge detection3. Small voidremoval4.Knowledge-base artifactsremoval5.Boundariesrectifaction
3D Reconstruction:1.DelaunayTriangulation
Summary
• A range of facilities at HKU, ME Dept. for biomodelling
• Started looking drug delivery devices and tissue engineering
• Product development (i.e. ideas into practice)
• Particularly suitable to surgical applications