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NEi Nastran biomedical engineering customers routinely address issues like:
- Design and deployment of cardiovascular related systems such as vascular stents, catheters, drug delivery systems, pacemakers, defibrillators, heart valve replacements
- Design and deployment of orthopedic related devices such as knee replacement, hip implants, spinal implants, cartilage and joint replacement, human modeling and virtual biomechanics, biocompatible materials analysis
- Design of intra-ocular lens implants and general devices
- Design of dental implants and general devices
- Design of mechanical connectors commonly used in all types of medical devices
- Wear and impact simulation to improve durability and reliability of implants
- Assessment and prediction of injuries
- Soft tissue and joint modeling
- Simulating the physiological response of body systems
NEi Nastran product suite key benefits for biomedical engineering:
- Proven track record demonstrating that NEi Nastran is one of the most trusted products for simulation of complex medical devices.
- Comprehensive interactive tools necessary for model creation, analysis monitoring, and results evaluation including a state-of-the-art analysis editor.
- Specialized industry-proven element technologies, including hybrid quad and hex elements, surface and spot weld elements, and dissimilar mesh interpolation elements.
- High performance processing including advanced parallel PCG iterative, sparse direct, and block Lanczos solvers which allow solutions to large-scale models over 10 million degrees of freedom on inexpensive 32-bit Windows workstations as well as high end 64-bit Linux clusters.
- Robust contact capability using a 3D surface contact method which easily handles dissimilar meshes between components including frictional effects.
- Basic through advanced material models including temperature dependent materials, non-linear elasticity and plasticity effects.
- Substructuring and Model Reduction allows the creation and reuse of substructures to improve the efficiency of large analyses and provides a convenient method to transfer model data to subcontractors.
- Submodeling allows in-depth evaluation of particular regions.
- Multiple subcase capability provides a highly efficient technique to evaluate the response of structures to many different load cases and boundary conditions.
- Extensive composite material support including, 2D orthotropic, 3D orthotropic, general anisotropic, laminate lay-up definitions, and a wide range of failure criteria.
- Advanced solution sequences such as linear and nonlinear static, transient dynamic, steady state dynamic, frequency extraction, heat transfer, and other analysis types, provide a choice of appropriate analysis types for different types of simulations.
- Integration with specialized fatigue applications, such as winLIFE which is available as an add-on to the NEi Nastran product suite and also fe-safe, nCode, Falancs and FE-Fatigue.
Case Studies in Medical Industry
Spinal Implant System by Trautwein Engineering
Human Spinal Implant
Spinal
Implant Fatigue Stress Analysis
Adjustable Lens Mechanism