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Hallowell EMC Model 2002 Anesthesia Ventilator

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The Hallowell EMC 2002 is an electronically controlled, time-cycled, pressure limited ventilators.

  • Electronic control: Eliminates the substantial driving gas required to operate pneumatically controlled ventilators.
  • Time cycled: Insures consistently spaced breaths. The possibility of stacking breaths or auto-PEEP is eliminated by keeping the I:E ratio constant at 1:2. This means that regardless of the respiratory rate setting two-thirds of each breath will remain for expiration. The respiratory rate is adjustable from 6 – 40 breaths per minute (BPM).
  • Volume constant: Insures that each delivered breath will have essentially the same volume, independent of changes in patient compliance and airway resistance. The deliverable tidal volume (TV) range is from approximately 20ml to 3,000ml using 3 interchangeable bellows and bellows housings.
  • Pressure Limited: Provides for patient safety by limiting the maximum working pressure (MWPL) to a user adjustable pressure range of 10 – 60 cm H2O.

Both the Hallowell 2002 and 2000 ventilators are equipped with dual airway pressure alarms that monitor and sound when the peak inspiratory pressure (PIP) of any breath either exceeds the preset maximum working pressure limit (MWPL) or fails to reach 6 cm H2O as in the case of a disconnect.

A Low Supply Gas Alarm, available as an option, would sound when the supply gas pressure falls below 35 psi, 2.4bar. The normal supply gas operating pressure is 50psi or 3.5bar. It is not until 35psi or 2.4bar that the ventilators delivered volume will begin to drop off proportionally with the warining supply pressure.