BIO-MED DEVICES Crossvent-2i+, Руководство по эксплуатации и обслуживанию, Страница: 27 / 97

III. S P E C I F I C A T I O N S , C O N N E C T I O N S A N D U S E R I N T E R F A C E - C O N T .
22
RATE -30%
**
+30%
**
-30%
**
+30%** MINIMUM MAXIMUM
EXHTV UNAFFECTED
EXHMV UNAFFECTED
PEEP UNAFFECTED N/A N/A
CPAP N/A -3 cmH2O +3 cmH2O
MEAN OFF
O
2
-5 +5 -5 +5 -5 +5
*
Calculated from Assist or Control breaths only.
**Calculated from all breath types
If a mode key (A/C, SIMV or CPAP) is pressed while Auto Set is computing, it will be canceled and will have to be pressed
again to repeat the process. In any mode, if the Auto Set calculation results in a value beyond the allowable range of that limit,
then the minimum setting for Low or maximum setting for High will be used, i.e., if the O
2
concentration is 23% or less, then
the low limit will be set to 18, the minimum allowable setting.
NOTE: When an alarm is turned off, auto set is deactivated for that alarm.
Whenever an alarm limit is manually entered, it takes precedence over the auto-limit already in
memory.
When Peak Pressure is computed in SIMV, if no assisted or controlled breaths are sensed within the
5-breath computation period, another 5 breath period is used. This is repeated until at least 1 assisted
or controlled breath is measured.
Auto Set is inactive in CPAP in the Constant Flow mode.
P O W E R S O U R C E K E Y
This key indicates whether the unit is operating on external or battery power and shows the level of battery power
regardless of the power source.
EXTERNAL POWER
- Displays “EXTRNL” whenever external power is connected to the CROSSVENT.
BATTERY OPERATION - Displays “BATT” when operating on battery. Flashes “BATT” whenever external power
is lost and the CROSSVENT shifts to battery power. When this happens, a simultaneous audible alarm sounds which
may be silenced only by pressing this key
. Restoration of external power will automatically switch the unit to external
power operation and begin charging of the battery until full charge is reached.
Whenever the CROSSVENT is powered on without external power, the Power Source key will alarm alerting the user
the unit is operating on battery power. This alarm will continue until the user acknowledges this by pressing the flashing
BATTERY key.
The Power Source key also displays a graphical representation of battery life remaining. It reduces it in 2% increments
as the battery power is depleted.
WARNING: Always operate the CROSSVENT on battery prior to use to confirm
that the battery is functioning.
CAUTION:
It is recommended that the CROSSVENT never be left with its battery
discharged as this will reduce battery life. After discharge of the battery, recharge fully
before disconnecting the plug-in power supply.
NOTE: For more on the battery, refer to Section III, Part C-2, Battery.
I N S P I R A T O R Y S O U R C E K E Y
This key indicates type of breath being delivered.
SPONTANEOUS BREATH - Displays SPONT whenever an inspiration is initiated by the patient’s spontaneous
effort during SIMV or CPAP, delivered at PEEP or atmospheric pressure or pressurized when pressure support is on.
ASSISTED BREATH - Displays ASSIST whenever an inspiration is initiated by the patient’s spontaneous efforts and
delivered under pressure (volume or pressure limited breath) during Assist Control and SIMV breaths.
CONTROLLED BREATH
- Displays CONTROL whenever an inspiration is initiated by the CROSSVENT timer
(volume or pressure limited breath), during Assist Control, SIMV backup and CPAP backup breaths.
MANUAL BREATH
- Displays MANUAL whenever a manual breath is delivered by pressing the MANUAL key in
CPAP mode.
S E T U P K E Y
This key is only accessible immediately after powering on the unit. Pressing it will display the SETUP menu which allows
the user to make changes to the unit’s setup as well as calibrate the oxygen sensor (see setup procedures in Section V). It is
deactivated and replaced by the ARROW keys by pressing any key other than the ALARM QUIET or BATTERY key or if
no key is pressed within 30 seconds of powering on the unit.