Design of Novel Orthotic Insoles Based on Partition Infilling of TPMS Structures
Summary: This study presents a new approach to designing patient-specific orthotic insoles using triply periodic minimal surface (TPMS) lattice structures with optimized partition infilling. The goal is to achieve better plantar pressure redistribution, improved comfort, and reduced peak pressures — key factors in preventing and managing diabetic foot ulcers (DFU). Finite element analysis and mechanical testing demonstrated superior performance compared to traditional designs, offering a promising pathway for advanced offloading solutions.
Key Highlights:
- TPMS-based lattices with strategic partition infilling for optimized stiffness and pressure relief
- Significant reduction in peak plantar pressures relevant to DFU prevention
- Advanced 3D printing enables personalized, lightweight, and breathable insoles
- Potential for scalable manufacturing of preventive diabetic footwear
Keywords: TPMS orthotic insoles, DFU prevention offloading, 3D printed insoles