CFR › Title 21 › Part 870 › §870.114021 CFR §870.1140Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. A venous blood pressure manometer is a device attached to a venous catheter to indicate manometrically the central or peripheral venous pressure.(b)Classification. Class II (performance standards).