Type-based market taxonomy distinguishes needles (44%), syringes (34%), lancets (12%), IV catheters (7%), and needle-free injectors (3%). Needles—spanning hypodermic, spinal, and biopsy variants—retain the largest share owing to low per-unit cost and universal protocol adoption. Syringes are subdivided into disposable glass, polymer, and pre-fillable formats; polymer syringes are cannibalizing glass share at 5% CAGR because they reduce breakage and integrate with safety caps. Lancets command higher per-unit value in capillary blood sampling, benefiting from ergonomic, tri-bevel tips that lower pain scores. IV catheters exhibit premium pricing tied to polyurethane materials that extend indwelling time, whereas needle-free injectors, though smallest, post double-digit growth as biologic therapies demand subcutaneous delivery without sharps waste. This layered Injection and Puncture Devices segmentation illustrates how material science and regulatory pressure on sharps exposure jointly steer product mix and pricing power.