Title :
Implantable 3D micromechanical failure source detection device - a preliminary report
Author :
Qi, G. ; Neuman, M.R.
Author_Institution :
Dept. of Mech. Eng., Memphis State Univ., TN, USA
Abstract :
The accumulation of micromechanical cracks are most likely a primary factor that contributes to fatigue failures of total hip arthroplasty (THA) such as femur component loosening. Currently, there is no reported methods that could monitor and predict the deterioration of a THA. Sound waves, generated in the micromechanical crack initiation and propagation, reveal the locations and severity of the failures. This paper presents the computational algorithms and preliminary test results that use the sound waves to compute the microcrack locations. The accuracy of the computed results is estimated numerically.
Keywords :
biomedical equipment; biomedical ultrasonics; microcracks; orthopaedics; prosthetics; ultrasonic materials testing; 3D microcrack source detection; cemented total hip arthroplasty; clinically visible failure; computational algorithms; cyclic loading conditions; fatigue failures; femur component loosening; implantable 3D micromechanical failure source detection device; medical acoustics; microcrack locations computation; numerical estimation; prosthetic devices design phase; Acoustic emission; Acoustic sensors; Acoustic testing; Biomedical engineering; Bones; Computational modeling; Fatigue; Hip; Mechanical engineering; Micromechanical devices;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1106651
