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 .
16
E- DISPLAY INTERFACE & MENUS
1- DISPLAY OVERVIEW
Careful attention has been paid to the human interface of the Crossvent-2i+. Its graphic LCD, with touch screen keypad,
makes it the most user friendly ventilator for today and tomorrow. Several menus are available on the LCD. These include:
Main functions
Primary Alarms
Secondary Alarms
NOTE: When first turned on, the unit displays “Bio-Med Devices, Inc.” until the initialization
process is complete. If this does not clear, submit the unit for service.
Procedure for selecting a function and adjusting its setting:
A menu or parameter is selected by simply pressing the corresponding key on the display. In this manual, when references
are made to keys, this is an area of the display containing text or values. There may not always be a “key” depicted
graphically. When instructed to press a key, it implies to press on the touchscreen over the word or value you want to select.
When a function is selected, the function will be highlighted.
Once a parameter is selected it may be adjusted using the UP and DOWN Arrow keys. The parameter key may be pressed
again to deselect it. If the arrow keys are not pressed for 30 sec., the highlighted key will automatically deactivate. The
following are exceptions to the procedure for setting functions:
•
Arrows are not required to select a menu or mode. These are selected simply by pressing the desired key, i.e. ASSIST
CONTROL.
•
CONSTANT FLOW and FLOW TRIGGER are mutually exclusive. Selecting one will turn the other off.
•
Flow is displayed in the Flow key, but may only be changed with the L/min (Flow) Knob.
•
I, E, I/E ratio is a display key only. I, E, I/E are set indirectly by setting Rate, Tidal Volume and Flow.
The display is graphically laid out for simplicity and ease of use. The left side of the display indicates Airway Pressure
information. The top and bottom rows of keys are always available to the user unless Setup is pressed. The top row allows
the user to move between menus as well as lock the display and quiet the alarms. The bottom row provides information on
what type of breath is being delivered, power conditions as well as allowing for AUTO SETTING the alarms and entering
SETUP. SETUP is replaced with 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 the unit being powered on. The center section of the display is what is considered
the “menu” and is the part that changes when a menu key is pressed.
2- BACKLIGHT & PRESSURE BAR GRAPH
B A C K L I G H T
The LCD display requires a backlight in order to be visible. Therefore, the default setting for the backlight is that it is
always on. There may be circumstances in which the user may desire the backlight to be off (ie., to extend the running time
while in battery mode). However, be aware that turning off the backlight means there is no visible display. It will be
completely blank. To turn off the display, press and hold the Pressure Bar Graph for 3 seconds until it beeps a second time.
The backlight will remain off until an alarm condition occurs, with the exception of a Power Failure Alarm, or the display is
touched. When the unit is powered off, it will revert to the default of always being on. It cannot be turned off while an
alarm condition exists.
A I R W A Y P R E S S U R E B A R G R A P H
Displayed on the left side of the display is an analog readout in proximal airway pressure from -5 to +55 cmH
2
O. As the
airway pressure increase, a green bar rises to reflect the pressure. If the pressure exceeds the setting of the Peak High
Pressure limit in the Alarm 1 menu, then the portion of this bar above the limit will be red. When the pressure bar goes
below zero, it will be yellow. Above and below the bar graph are numerical values for PEAK and PEEP/CPAP
pressures respectively. The PEAK display at the top should be used for readings when the pressure exceeds the range of
the bar graph.
3- MAIN MENU
Pressing the MAIN key displays the Main menu. When in the Main menu, ventilation modalities, Assist Control, SIMV, or
CPAP, may be selected. The selected mode will be highlighted and it becomes immediately operative.
Ventilation modes: