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

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

Valve fluid-structure interaction