Flowmeter de-aerator for parenteral fluid administration set

摘要: 1,195,676. Measuring fluid flow. W.R. KOEHN. March 7, 1969 [May 22, 1968], No. 12165/69. Heading G1R. In a parental administration set including flowmeter 11 and drip chamber 13 having flexible wall portion 28, for manually varying the volume of 13, an intermediate 12 is interposed between arrangement such that upon onward flexure 28 air forced from through duct 42 towards liquid in lower into to flush out bubbles therein.