Part Description:
000A3742 - Multiflow 2002 Anesthesia
Ventilator with Adjustable I:E Ratio
300-1600 ml version includes bellows and
housing
Set up diagram
The Hallowell EMC
Model 2002 and 2000 are electronically
controlled, time-cycled, pressure limited
ventilators.
Time cycled -- Insures consistent,
repetitious, dependable breathing. 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 20 cc to 3,000 cc.
Pressure Limited -- Provides for patient
safety by limiting the maximum working
pressure (MWPL) to an adjustable pressure
range of 10 - 60 cm H2O.
The Model 2002 Veterinary Anesthesia
Ventilator is functionally equivalent to the
Model 2000 with the following exceptions:
The Model 2002 ventilator is 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. The Low Supply Gas Alarm,
available as an option, would sound when the
supply gas pressure falls below 35 psi,
2.4bar.
Available on all models of the 2002 and 2000
is the option of having an adjustable I:E
Ratio control. Normally, without this
option, the I:E Ratio is fixed at 1:2, that
is, 1/3 of the period of each breath is
inspiration and 2/3 of each breath is
exhalation. Regardless of the respiratory
rate, the patient will always have 2/3 of
the cycle to exhale. This fixed I:E ratio
can be fixed at a value other than 1:2 at no
extra charge.
The adjustable range is from 1:1.5 to 1:4.
The pros and cons are that this option
affords the operator more flexibility in
dealing with animals that have compromised
lung function. But during anesthesia most
patients are lung healthy and the addition
of this control can add to the complexity of
setting the ventilator. For example consider
that you have a hypocapnic patient. To bring
that patients CO2 level to a more normal
range you must decrease the overall gas
exchange, the Minute Volume (MV). Without
this option, only one knob controls the MV,
that is the Volume control. With this
option; however, increasing the I:E ratio
would also cause a reduction in MV.