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Updated: Jul 8, 2025

Design and Fabrication of an Elastomeric Unit for Soft Modular Robots in Minimally Invasive Surgery
Published on: November 14, 2015
Functionally graded stem optimizes the fixed and sliding surface coupling mechanism
Mincong Wang1, Yuzhu Wang2, Yue Meng1
1Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.
Abstract:
Whether the optimization of fixed surface and sliding surface coupling mechanism is related to the hierarchical level of functionally graded porous stem is unknown. The functionally graded porous finite element stem models were constructed using tetrahedral microstructure with the porosities of 47-95%. The stress distribution for femoral bone gradually strengthened, the stress shielding was decreased along the increase of hierarchical levels of the stem after implantation. The coupling mechanism of fixed and sliding surfaces can be optimized by the functional gradient porous stem, the performance advantages become more prominent with the increase of hierarchical levels of the structure.
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