The National Institutes of Health (NIH) is offering a funding opportunity titled "Catalyze: Product Definition – Medical Device Prototype Optimization" (RFA-HL-26-020) aimed at supporting early-stage translational research for the optimization of prototypes related to heart, lung, blood, and sleep (HLBS) diseases. This initiative seeks to facilitate the transition of basic science discoveries into viable diagnostic and therapeutic candidates, encouraging significant improvements over existing solutions through strong biological rationale and preliminary data. The total anticipated funding is approximately $4.466 million per fiscal year from FY 2026 to FY 2028, with applications due by 5 PM local time on specified dates, and a maximum project duration of two years. Interested applicants can find more information and contact NIH Grants Information at grantsinfo@nih.gov for inquiries.