MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202541123896 A) filed by Saveetha Institute Of Medical And Technical Sciences, Chennai, Tamil Nadu, on Dec. 9, 2025, for 'design development and clinical evaluation of a 3d printed trocar for semi-rigid thoracoscopy: a feasibilty study.'
Inventor(s) include Siva Ram Chandrasiva M Rajendren; Dr. Prasanth Gururaj; and Deepak Nallaswamy Veeraiyan.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "Design, Development and Clinical Evaluation of a 3D-Printed Trocar for Semi-Rigid Thoracoscopy: A Feasibility Study This invention relates to a 3D-printed trocar for semi-rigid thoracoscopy designed to provide safe and efficient access to the pleural cavity. The device consists of an outer cannula with atraumatic beveled edges, a blunt-tip inner obturator for safe entry, an ergonomic handle for stability, and an auxiliary lumen for suction, irrigation, and diagnostic sample collection. The trocar is manufactured using biocompatible polymers through 3D printing, which allows cost- effective production, customization, and single-use disposability to prevent cross-infection. Structural and flow simulations confirm that the design withstands thoracic pressures and maintains stable fluid dynamics. Clinical evaluation demonstrates safe pleural entry, effective sample retrieval, and reduced procedure time when compared with conventional metallic trocars. This invention provides a low-cost, safer, and more efficient alternative for pleural interventions, supporting wider adoption of semi-rigid thoracoscopy, particularly in intensive care and resource-limited settings."
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