Project / 13 · Applied Research
Tracheal Cannula
Patient-specific design through parametric modelling and 3D-printed moulds.
Customisation in healthcare
Standard cannulas are typically offered in a fixed shape and a limited range of sizes, which may not provide a comfortable or secure fit for every patient. This project explored the design and scalable production of customised, patient-specific cannulas.
By working from individual anatomy, the design process can account for differences that standard dimensions do not capture. Physical models and prototypes support the development of these customised forms.
A personalised tracheal cannula in a day
CT and MRI scans provide detailed patient data that can be translated into 3D models and used as a reference for designing customised tracheal cannulas. Combining parametric modelling with 3D printing of the moulds makes it feasible to rapidly design and produce patient-specific solutions.
My role was to identify the key design variables and develop a parametric model applicable to a wide range of cases. The cannula fixture was divided into fixed components and variable features, including wall thickness, opening radius, fixation ring, and curvature.
The digital workflow allows patient anatomy to be viewed, sectioned, and simplified for precise design development. The parametric model can generate thousands of unique variations based on individual patient data.
