Application-based Infusion Therapy Devices segmentation structures demand across Oncology, Pain Management, Nutrition, Diabetes, and Pediatrics. Oncology dominates, accounting for ~34% of 2023 global sales, driven by long-cycle chemo-infusion pumps that command 3–4× average unit pricing. Pain Management, the second-largest slice, benefits from ambulatory pumps used in post-operative ERAS protocols; volume CAGR of 6.1% outpaces revenue CAGR as ASP erodes 2–3% annually. Nutrition and Diabetes are tied to chronic home-care penetration, with nutrition pumps growing fastest in APAC as hospital reimbursement shifts to home enteral programs. Pediatrics, while smallest, sustains double-digit pricing premiums because micro-volume accuracy (<0.1 mL/hr) is non-negotiable in neonatal ICUs. Collectively, these five clusters shape procurement cycles, service contracts, and aftermarket revenues that define the overall Infusion Therapy Devices market size.