Detroit Engineered Products (DEP), a US-based company with specialised capabilities in the biomedical industry, has developed a unique stent rolling tool within its proprietary CAE platform, DEP MeshWorks. This can save manufacturing companies significant time in the design process of stents.
MeshWorks with its fully customisable stent rolling and stent mesh parameterisation tools offer a platform for creating high-quality numerical models as input towards stent performance evaluation and optimisation.
According to a Deloitte report, the growth rate of India’s medical-device industry is around 15 percent which is more than double of the global industry growth rate of 4-6 percent and is expected to become a $25-30 billion industry by 2025. DEP with its unique capabilities is all set to contribute to the growth of India.
The tool removes a step from the traditional process of stent design and introduces a time-saving method for designing. In the conventional design process for a stent, the design is built as a 1D CAD data, then converted to a 3D CAD data and then into a 3D mesh data, on which virtual validation is conducted.
This testing involves considerable back and forth with the CAD data, which can be time-consuming. In the new process developed by DEP, as soon as the 2D line data is available, it can be directly taken into MeshWorks and converted directly into a 3D Mesh data. This 3D mesh is now parametric, and as virtual testing is conducted, changes can be done directly in the mesh data, and the time taken for back and forth design changes with CAD can be significantly reduced.
Speaking on the latest development by the team, the Chief Innovation Officer at DEP, Karthik Shankaran said, “Creating engineering solutions that can help the biomedical industry is extremely satisfying, as any time saving in any process has a positive cascading impact. While working closely with biomedical companies, we found the need for specific mesh modelling tools, morphing tools, and optimisation techniques. This tool from MeshWorks will not only help companies save time as they use it for meshing and virtual validation but will help our customers in the area of preparing regulatory and non-regulatory virtual validation reports for FDA before clinical trials as well.”
Stent deployment process and its long-term usage require multiple objectives to be met, like final stent diameters for cardiovascular disease treatments, and minimalistic plastic strain during the deployment to meet the fatigue life. Achieving an exact dilation diameter and maintaining minimal plastic strain values are mainly based on stent geometric design, cross-section, material, amount of crimping and expansion diameter.
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