Anaesthesia and critical care.

نویسنده

  • P Rangappa
چکیده

Coanda Effect in Mechanical ventilators: Named after Henri Marie Coanda (June 7, 1886 – November 25, 1972) was a Romanian inventor, aerodynamics pioneer and the patent holder of the modern jet aircraft. The secret of the fluidic flip is a phenomenon known as the Coanda effect. This is a relatively new discovery previously applied in the fields of aerodynamics and jet engine design. When a jet of fluid leaves a nozzle at high speed, fluid from the body that it enters is entrained or drawn in, by the momentum of the flow. If there is an obstruction to this action, such as a wall, there is less fluid to be drawn in with a resulting drop in pressure on the side of the jet. This pressure drop causes a deflection in the flow and redirects the jet until it attaches to the wall. The infant flow CPAP generator demonstrates this effect by utilizing the baby’s breathing effort to induce the Coanda effect and trigger Fluidic Flip inside the device. Fluid logic volume-cycled ventilators was first introduced in 1964.

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عنوان ژورنال:
  • The Journal of the Association of Physicians of India

دوره 63 3  شماره 

صفحات  -

تاریخ انتشار 2008