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Dynamics of the human thorax with the Lorenz pectus bar

Awrejcewicz J., Łuczak B.

Vibrations in Physical Systems

2006

Vol. 22

59--64

Non-Metallic Composite Materials for Bone Surgery

Chłopek J., Kmita G.

Engineering Transactions

2003

Vol. 51, iss.2-3

307-323

Possibility of using non-metallic materials in biomedical applications was considered. The attention was focused mainly on polymer materials and both the carbon-carbon and carbon-reinforced polymer composites, their mechanical and biological properties. The obtained results indicate that some of these materials can be successfully used instead of metallic implants for biomechanical functions.

Influence Of Bone Anisotropy On Stress Distribution And Optimum Shape Of Cementless Femoral Implants

Kowalczyk P.

Engineering Transactions

2003

Vol. 51, iss.2-3

194-214

Implant separation from bone tissue, resulting in the necessity for revision surgery, is a serious drawback of cementless total joint replacement. Unnatural stress distribution around the implant is considered the main reason for the failure. Optimization of the implant properties, especially its geometric parameters, is believed to be the right way to improve reliability of joint prosthetics. Numerical models of femur--implant system enabling approximate analysis of stress distribution and shape optimization of implants suffer from numerous simplifications as, e.g., the assumption of bone isotropy, which may put in question reliability of the results obtained. In this paper, a numerical model including orthotropic properties of both cancellous and cortical bone is presented and influence of this assumption on results of the analysis and optimization is investigated.

Formowanie pianek korundowych do zastosowań medycznych.

Michałowski S., Jaegermann Z., Karaś J.

Szkło i Ceramika

2002

R. 53, nr 3

2-7

W artykule omówiono formowanie porowatych materiałów ceramicznych z użyciem matrycy organicznej na tle innych metod kształtowania struktur porowatych stosowanych w technologii ceramiki. Przedstawiono także własne doświadczenia formowania tą metodą pianek korundowych przeznaczonych na specjalistyczne wszczepy do zastosowań w chirurgii kości. Podano sposób formowania oraz właściwości fizyczne i strukturalne otrzymanych pianek.

Forming of porous ceramic materials by the organic matrix method compared to the other methods of shaping porous structures were presented in this paper. Alumina foams, forming by this method for application in bone surgery was also described. Forming method, physical and structural properties of the alumina foams were presented.