Blueprint: Constant-Head Mariotte Insert for Gravity IV Infusion — Build and Implementation Specification

Build and implementation specification for a passive Mariotte constant-head insert for a standard gravity IV drip set: dimensions, bill of materials, fitting, priming and calibration, operating envelope, tolerances, failure modes and safety limits, derived from the published error budget in which the insert reduces total error to 9.5% with at-patient clamp setting. DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT, NOT CLINICALLY TESTED. Blueprint for the design published as DOI 10.5281/zenodo.24108822.