The DTIs for Injection ecosystem encompasses the full spectrum of activities that transform raw inputs into clinically approved injectable drug‑delivery devices and ultimately deliver therapeutic benefit to patients. Upstream activities include sourcing of polymer resins, solvents, and active pharmaceutical ingredients (APIs) that form the core of dry‑tube injectors. Midstream functions consist of design engineering, component fabrication, and assembly performed by technology providers and OEM manufacturers. Downstream, system integrators, distributors, and health‑care providers bring finished devices to hospitals, clinics, and home‑care settings. Value is created through material innovation, precision manufacturing, and regulatory compliance, and captured by manufacturers, service firms, and end‑user institutions.