Laser Forming vs. Electrical Discharge Machining of Needle-Palisade Fixation Systems for Cementless THRA Endoprosthesis Preprototypes

• Autorzy: Rogala P. , Mielniczuk J. , Uklejewski R. , Winiecki M. , Auguściński A. , Berdychowski M.
• Konferencja: International Conference on Modelling and Simulation of the Friction Phenomena in the Physical and Technical Systems "FRICTION 2008" (5 ; 31.05-1.06.2008 ; Warsaw, Poland) ; French-Polish Seminar of Mechanics (16 ; 31.05-1.06.2008 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

This paper presents results of prototyping of cementless THRA endoprosthesis with needle-palisade fixation system designed within the framework of the research project No 4 T07C 056 29. There are presented main instructions for modelling and prototyping according to Rogala's patents (Rogala, patents, 1999). CAD models present fragments of the needle-palisade fixation system, semicircle shaped fragments of the endoprosthesis and preprototype of total THRA endoprosthesis. The modelled elements were saved as STL format and printed with SLA. To verify the possibility of manufacturing of needle-palisade fixation system of the Rogala's cementless THRA endoprosthesis various samples of the fixation system were manufactured by one of direct metal manufacturing (DMM) technology - Selective Laser Melting (SLM). Fragments of needle-palisade fixation system were also manufactured by Electrical Discharge Machining (EDM). The paper presents the variety of designed samples and remarks concerning the producibility the needdle-palisade fixation manufacturing with the considered technologies.

Słowa kluczowe

EN

endoprosthesis; implants; stereolitography; SLA; electrical discharge machining; EDM; selective laser melting; SLM; Total Hip Resurfacing Arthroplasty; THRA; needdle-palisade fixation system

PL

biomechanika; endoproteza; inplanty; stereolitografia; EDM; SLA; SLM; THRA

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 2008
• Tom: Vol. 32, No. 1
• Strony: 80--87
• Opis fizyczny: Bibliogr. 6 poz., il.

Twórcy

autor

Rogala P.

autor

Mielniczuk J.

autor

Uklejewski R.

autor

Winiecki M.

autor

Auguściński A.

autor

Berdychowski M.

• Poznan University of Medical Sciences. Spine Surgery, Oncologic and Orthopaedics and Traumatology Department,

Bibliografia

• Mielniczuk, J., Rogala, P., Uklejewski, R., Winiecki, M., Jokś, G., Auguściński, A., Berdychowski, M., 2008, Modelling of the needle-palisade fixation system for the total hip resurfacing arthroplasty endoprosthesis. Trans VŠB-TU Ostrava, 2008, 51(1), 160-166.
• Rogala, P., 1999, European patent, No 072418 Bl, Endoprothesis.
• Rogala, P., 1999, USA patent, No 5, 91, 759, Acetabulum endoprothesis and head.
• Rogala, P., Uklejewski, R., 2006, Needle-palisade fixation for total resurfacing arthroplasties of hip and other joints - biomechanical principles, J. Biomech., 39, S.1, S513.
• Rogala, P., Uklejewski, R., Winiecki, M., Mielniczuk, J., Auguściński, A., 2006, The concept and geometrical model of modern endoprosthesis concerning minimal invasive total hip resurfacing arthroplasty (THRA). Machine Dynamics Problems, 30(4), 89-96.
• Uklejewski, R., Rogala, P., Mielniczuk, J., Stryła, W., 2006, Modern trends in the bioengineering design of low-invasive joint endoprotheses for human skeleton - on the basis of non-traditional poroelastic biomechanical model of bone (original title in Polish: Współczesne trendy w konstruowaniu małoinwazyjnych endoprotez stawów układu kostnego człowieka - na podstawie nietradycyjnego porosprężystego modelu biomechanicznego kości), In: Malujda, I. (Ed): Kierunki projektowania i badania cech konstrukcyjnych elementów maszyn, Wyd. Polit. Pozn. KPKM, 217-244.