Ohmeda Ohio 2000 IWS Series, Operation And Maintenance Manual

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3-11
6600-0255-000 12/20/00
3/Operation
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The servo control temperature is adjusted by pressing the increase (
M
) or the
decrease (
?
) touch switches. The control temperature can be adjusted from 35 to
37.5°C. In the servo mode, the temperature sensed by the skin temperature probe
is used by the control system to modulate the radiant heat and maintain the
patient’s skin temperature at the selected control temperature. The Appendix
details the Servo Control Mode Algorithm.
Note: The Warmer cannot differentiate between an increase in core temperature
with cold skin (fever), and low core and skin temperature (hypo-thermia). Patient
temperature should be verified with an axillary thermometer.
WARNING:
w
In the servo mode, verify that the patient temperature probe is securely
attached to the patient at least every half hour. A dislodged probe does
not always trigger an alarm. If the probe becomes dislodged, the warmer
can over or under heat the infant.
Note: A patient placed in any warmer will normally develop temperature gradients
with hotter and cooler areas. This is due to radiant heat being applied above the
infant, the unequal skin cooling effect from evaporative water loss, unequal heat
generation within the patient, and the environmental variables of room temperature,
room air movement, incidental sunlight, etc.
WARNING:
w
The use of phototherapy equipment may raise the patient’s temperature.
3.3 Elapsed Timer Operation
1. Press the Start/Hold touch switch to activate the elapsed timer.
2. The Apgar indicator light is illuminated when the Apgar tones are enabled. Press
the Apgar Tones On/Off touch switch to enable or cancel the Apgar tones.
3. Press the Start/Hold touch switch to hold the present elapsed time when the timer
is running. The Apgar tones, if enabled, continue to sound at the specified times
(after 1 minute and at every 5 minute interval after the elapsed timer is started).
4. Press the Start/Hold touch switch to update the timer to the current elapsed time.
5. Press the reset touch switch to start the timer over at “00:00”. The elapsed time
display is blanked out when the elapsed time reaches 60 minutes.
3.4 Bassinet Operation
(model 3500 only)
Note: Lock the warmer’s two rear casters before unlocking or locking the bassinet.
The bassinet unit can be detached from the model 3500 warmer by pulling up on the
locking lever knob located at the top rear of the bassinet. When the knob is pulled up,
the locking pin is freed from its socket on the warmer alignment/locking track on the
warmer base. The bassinet can then be rolled forward away from the warmer.