Hybrid Stent-Heart 3D Model

Biomedical Stent Model for 3D Printing and CAD ApplicationsOverview

This is a highly detailed, parametric 3D model of a stent-like structure designed in SolidWorks, ideal for biomedical engineering, 3D printing, and finite element analysis (FEA). The model features a cylindrical lattice with a precise zigzag pattern, optimized for both visualization and functional prototyping. Perfect for researchers, engineers, and hobbyists working on medical device development or educational projects.

Key Specifications

• Dimensions:

  • Length: 18.20 mm

  • Outer Diameter: 1.56 mm

  • Wall Thickness: 62.5 µm

  • Strut Width: 62.5 µm

• Geometry: Cylindrical mesh with a repeating zigzag pattern, designed for flexibility and radial strength.

• Polygon Count: Approximately 676020 triangles (STL format, fine resolution).

• Vertex Count: Approximately 181066 vertices.

• File Formats:

  • SolidWorks Native: .sldprt (fully parametric, editable)

  • Neutral Formats: STEP, IGES (for CAD compatibility)

  • 3D Printing: STL (optimized for FDM and SLA printers)

• Materials: Configured for stainless steel 316L (common for stents), with options for other biocompatible materials in simulation.

Features

• Parametric Design: Built in SolidWorks with fully editable sketches and features, allowing customization of dimensions (e.g., diameter, length, strut thickness).

• 3D Printing Ready: STL file optimized with minimal overhangs and 0.8 mm minimum wall thickness for reliable printing on FDM or SLA printers (tested with Cura and PrusaSlicer).

• Simulation Ready: Suitable for FEA in ANSYS or LS-DYNA to analyze expansion, foreshortening, and vessel contact (surface area: ~21.72 mm² for nominal diameter).

• High Accuracy: Modeled with precise tolerances (±0.01 mm) and validated using SolidWorks’ Check Entity tool for clean geometry.

Applications

• Biomedical Research: Ideal for prototyping stent designs or studying mechanical behavior (e.g., radial strength, foreshortening).

• 3D Printing: Perfect for creating physical prototypes for testing or educational displays.

• Engineering Education: Suitable for teaching CAD, FEA, or medical device design.

• Custom Projects: Configurable for specific diameters or lengths, adaptable for other tubular lattice structures.

Usage Notes

• 3D Printing: Recommended layer height of 0.1–0.2 mm for SLA or 0.2–0.3 mm for FDM. Use supports for complex lattice sections.

• CAD Compatibility: STEP/IGES files ensure compatibility with other CAD software (e.g., AutoCAD, Fusion 360).

• Licensing: Royalty-free for commercial and non-commercial use (see 3DExport license terms).

• Customization: Contact for bespoke modifications (e.g., adjusting zigzag angle ~33.3° or pattern density).