| Selective laser sintering of ultra high molecular weight polyethylene for clinical applications. | |
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MedLine Citation:
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PMID: 10898883 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Rapid prototyping is a relatively new technology, which although prominent in the engineering industry is only just starting to make an impact in the medical field. Its current medical uses are mainly confined to surgical planning and teaching, but the technology also has the potential to allow for patient-tailored prostheses. The work reported here describes the application of a simplified selective laser sintering apparatus with ultra high molecular weight polyethylene (UHMWPE). The morphology and chemistry of the starting powders and lased material have been characterized using Fourier Transform Infra Red spectroscopy and a combination of light and scanning electron microscopy. It was found that solid linear continuous bodies could be formed, but material shrinkage caused problems when trying to form sheet-like structures. The porosity of the formed material was also a concern. The material exposed to the laser beam was shown to have undergone degradation in terms of chain scission, cross-linking, and oxidation. It has been concluded that to apply this technology to the fabrication of UHMWPE devices requires the development of improved starting powders, in particular with increased density. |
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Authors:
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J T Rimell; P M Marquis |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of biomedical materials research Volume: 53 ISSN: 0021-9304 ISO Abbreviation: J. Biomed. Mater. Res. Publication Date: 2000 |
Date Detail:
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Created Date: 2000-10-02 Completed Date: 2000-10-02 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0112726 Medline TA: J Biomed Mater Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 414-20 Citation Subset: IM |
Copyright Information:
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Copyright 2000 John Wiley & Sons, Inc. |
Affiliation:
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Biomaterials, School of Dentistry, The University of Birmingham, United Kingdom. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Biocompatible Materials* Humans Lasers Microscopy, Electron, Scanning Polyethylenes* |
| Chemical | |
Reg. No./Substance:
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0/Biocompatible Materials; 0/Polyethylenes; 0/ultra-high molecular weight polyethylene |
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