MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049857 A) filed by Dr. P. Mahadevi; and Velammal Institute Of Technology, Panjetty, Tamil Nadu, on April 19, for 'smart radiopaque and bioresorbable nanocomposite stents: engineering a plga/tpu-silk fibroin- zno composite for 3d-printed vascular implants.'
Inventor(s) include Dr. P. Mahadevi; Dr. S. Sumathi; Dr. K. Janani; Dr. S. Jeganraj; Dr. Sheela Violet Raani; and Dr. Parameshwari.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "A radiopaque, smart bioresorbable vascular stent based on a PLGA/TPU/silk fibroin/ZnO nanocomposite and its fabrication by 3D printing are disclosed. The composite is formulated for fused deposition modelling and comprises thermoplastic polyurethane synthesized from non edible oil, poly(lactic co glycolic acid), silk fibroin, and zinc oxide nanoparticles at a weight ratio of 40:35:15:10, respectively, to combine controlled biodegradability, mechanical integrity, shape memory driven self expansion, enhanced biocompatibility, and radiopacity. PLGA provides temporary structural support and bioresorption, TPU imparts elasticity and temperature responsive recovery at body temperature, silk fibroin promotes endothelial integration, and ZnO nanoparticles enable X ray visibility and antimicrobial functionality. The material is extruded into filaments and 3D printed into patient specific stent geometries, allowing precise, image guided deployment with reduced need for balloon angioplasty and improved anatomical fit. The stent platform further supports drug loading for potential drug eluting configurations, enabling minimally invasive, image guided cardiovascular therapies with customizable mechanical, degradation, and therapeutic performance."
Disclaimer: Curated by HT Syndication.
