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FE analysis and design of the mechanical connection in an osseointegrated prosthesis system
Linköping University, Department of Management and Engineering, Mechanics.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this master thesis the connection between the two major parts of an osseointegrated prosthesis system for lower limb amputees has been investigated by finite element (FE) analysis. The prosthesis system is developed by Integrum and the current design consists of a fixture, which is integrated in the residual bone, an abutment that penetrates the skin and an abutment screw that holds the parts together. The connection between the fixture and the abutment has a hexagonal section and a press-fit section that together form the connection. Due to wear and fracture problems it is desired to improve the connection. A tapered connection could be an alternative and three different taper angles, the effect of the length of the taper and the smoothness of the outer edge of a tapered fixture have been investigated. The results show that the taper has potential to function well and that a longer connection will give lower stresses in the system, but further investigations are needed.

Place, publisher, year, edition, pages
2011. , 47 p.
Keyword [en]
abutment, finite element analysis, gait analysis, implant, Integrum, Morse taper, osseointegration, prosthesis, titanium
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:liu:diva-69402ISRN: LIU-IEI-TEK-A--11/01164—SEOAI: oai:DiVA.org:liu-69402DiVA: diva2:427537
Subject / course
Engineering Mechanics
Presentation
2011-06-16, Linköping, 10:15 (English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2011-09-23 Created: 2011-06-27 Last updated: 2011-09-23Bibliographically approved

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FE analysis and design of the mechanical connection in an osseointegrated prosthesis system(3049 kB)1824 downloads
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CiteExportLink to record
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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
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  • Other style
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  • de-DE
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  • en-US
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  • nn-NO
  • nn-NB
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Output format
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