CoroEase is an innovative, portable nitroglycerin electronic spray designed for elderly coronary heart disease patients. Combining traditional medication with modern technology, it features a user-friendly design for easy localization with a positioning nozzle and precise dosing with a single press. The device syncs usage data to a dedicated mobile app, allowing patients to track their treatment progress and share the data with their families. This data-driven approach enhances communication and ensures better patient support.