roller pump

roller pump back-pressure blood body carbon dioxide cardiac surgeries cardiopulmonary bypass machine circulatory functions compress curved wall environment equipment extracorporeal circuit flexible tube flow functionality head heart heart-lung hydraulic systems hydraulics hydrodynamics life-saving liquid mass transfer medical device medicine open-heart oxygenate patient#39aph39#s perimeter pressure process pumping radial centrifugal pumps rhythmic rotating rollers rotation speed squeezing action strength technique technology vital tool wave-like motion isolated white white background black