Nitinol Design Concepts

Design, simulation, and analysis resources from Confluent Medical Technologies

View the Project on GitHub

Design Tutorial series
SMST-17 Volumetric Methods series
Nitinol Design Tools

Nitinol Design Tools

Open Stent Calculator

Screen open-cell nitinol stent concepts while iterating laser-cut tube geometry. Inputs and calculation state stay in the browser.

Stent geometry screening

Open Stent Calculator

Screen open-cell nitinol stent concepts while iterating laser-cut tube geometry.

Engineering screen only. This calculator is for early design comparison. It is not a validated design-release, verification, or clinical decision tool.

Inputs

Design parameters

Defaults match the Open Stent baseline worksheet. Changes recalculate immediately.

Parameter guide

Reference geometry and mechanics

Figures are shown next to the relevant calculator sections.

Raw as-cut unit cell geometry
Raw/as-cut unit cell geometry for tube, strut, apex, and bridge inputs.
Expanded finished unit cell geometry
Expanded/finished unit cell geometry used for deployment and length calculations.
Modulus versus Af curve
Material modulus estimate as a function of finished Af.
Moment of inertia reference
Curved strut cross-section model for moment of inertia.
Fixed guided beam model
Fixed-guided beam model used for force and strain estimates.
Mean strain and strain amplitude
Mean strain and strain amplitude relationship for fatigue screening.

Calculated detail

Workbook-aligned outputs

Intermediate values are grouped to mirror the Open Stent worksheet sections.

Sensitivity

One-variable sweep

Run quick frontend-only sweeps without saving data to a backend.

Source basis: formulas and figures are derived from the Open Stent Design manuscript and Stent_Calculator_Worksheet.xls from the cbonsig/open-stent project. Baseline output values are validated against the worksheet's OSD_Baseline sheet.