Biomedical Stent Model for 3D Printing and CAD Applications

Overview

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: 48.20 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 15,000 triangles (STL format, fine resolution).

Vertex Count: Approximately 45,000 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).

Why Buy This Model?

This stent model combines precision engineering with practical usability, designed by an experienced SolidWorks user with expertise in lattice structures and 3D printing workflows. The model is clean, lightweight (~15,000 triangles), and ready for immediate use in professional or hobbyist projects. High-quality renders and exploded views are included for easy integration into your workflow.