Implantables.

Quartus engineers have years of experience designing, analyzing, and testing medical devices throughout the whole body, including performing one-off simulations, assisting with submission materials and complex design-of-experiments. From single-use products, to wearable products, to permanent implants, the Quartus team has years of experience in areas such as:

  • Cardiac implantable and disposable devices
  • Orthopedic implants and tools
  • Otolaryngology devices
  • Single-use, and multi-use test equipment
  • Prosthetics

 

 

CAPABILITIES

Structural, Thermal, Fluid Flow, Multi-Physics

  • Design, assembly, integration, and product simulation
  • ASME V&V 40 (Verification & Validation in Computational Modeling of Medical Devices)
  • In vitro/vivo modeling
  • Fluid-structure interface modeling for full device characterization

Simulation Based Acute and Fatigue Response

  • Radial force simulations and correlations
  • Infinite life characterization
  • Material characterization and calibration
  • Metallic, ceramic, and biological materials

Nitinol Subject Matter Experts

  • Nitinol device design
  • Shape setting optimization
  • Training and educational services available
ASD simulation using full
contact nitinol wire braid

 

 

 

Valve displacements and strain
Valve fluid-structure interaction

 


CASE STUDY

Fatigue & Hemodynamic Analysis of Aortic Heart Valve

  • Fully-coupled fluid-structure analysis using StarCCM & Abaqus
    • Fluid dynamically deflects leaflet tissue, imparting physiological loads on stent
    • Elasto-plastic, superelastic, & custom anisotropic hyperelastic material models
  • Full-field stresses & strains on stent, leaflets, & fluid​

Quartus aids the design process through:

  • Manufacturing & fatigue analysis of the stent frame
    • Allows for rapid design iterations
    • Nitinol, stainless steel, titanium; tube or braid
  • Hemodynamic analysis
    • Calculation of pressure drop, stagnation, hemolysis, etc.
  • Trade studies on geometric & manufacturing parameters
  • Regulatory submission analyses
  • Verification & validation
    • Qualitative & quantitative comparison to in-vitro testing
    • Convergence & sensitivity studies