Mumbai: Detroit Engineered Products (DEP), a US based company with specialized capabilities in the biomedical industry has developed a unique stent rolling tool within its proprietary CAE platform, DEP MeshWorks. This can save companies significant time in their design process of stents. MeshWorks with its fully customizable stent rolling and stent mesh parameterization tools, offers a platform for creating high quality numerical models as an input towards stent performance evaluation and optimization.

According to a Deloitte report, the growth rate of India’s medical-device industry is around 15 per cent which is more than double of the global industry growth rate of 4-6 per cent, and is expected to become a $ 25-30 billion industry in India by 2025. DEP with its unique capabilities for the industry is all set to contribute to the growth of India on a global map.

The tool removes a step from the traditional process of stent design and introduces a faster 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, Mr. Karthik Shankaran said,” Creating engineering solutions that can help the biomedical industry is extremely satisfying, as any time savings in any process has a positive cascading impact. While working closely with biomedical companies, we found the need for specific mesh modeling tools, morphing tools and optimization 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 requires 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.  DEP MeshWorks has toolsets that are applicable for coronary stents, vascular stents, branch stents, biliary stents and many other types of stents. The stent rolling tool helps to create a 3D Hex mesh model of stent from 2D line data input from designers. The morphing tool helps parameterize geometry features and metal artery ratio. Parametric model driven optimization helps realize optimum radial recoil, foreshortening using stent geometry as parameters.