Hoffrichter TRENDvent Reference guide

TRENDvent
brief instructions
Quality makes the Difference
This document does not replace the
manufacturer's user's manual. Follow
the user's manual.
for patients
Oxygen
connection
Oxygen sensor
cable connection
Connection
for tube system/
humidifier
Display
Unlocking button
for humidifier
Handle
Contact sockets
for humidifier
Control tube
connection
Pressure measuring
tube connection
Oxygen
output
Main switch
Air inlet with integrated
filter cassette (fine and
coarse filter), detachable
DC
24V~/5A
Mains socket
Battery LED
esc button
Touch wheel
with cursor buttons
OK button
Heating
button
ON/OFF button
Alarm button
Power LED
Power LED
Color Condition Power supply
green lit Voltage > 22.0 V
red flashing Voltage > 22.0 V
none off Voltage > 22.0 V (confirmed)
Battery LED
Color Condition Device Capacity
green lit on > 80 %
yellow lit on > 30 %
red lit on < 30 %
red flashing on Battery error
green flashing off > 80 %
(Battery charging)
yellow flashing off > 30 %
(Battery charging)
red flashing off < 30 %
(Battery charging)
yellow lit off Battery charging error
(capacity < 80 %)
red lit off Battery charging error
(capacity < 30 %)
Alarm button
Color Condition Priority
red flashing HIGH
yellow flashing MEDIUM
yellow lit LOW or not yet confirmed
alarm
Heating button
Color Condition Status
green lit Heating on
green flashing Heating on standby
white lit Heating off
white flashing Heating deactivated by battery
operation
LEDs AND BUTTONS
or on alarm
to last
active screen
or
OPERATING CONCEPT
Ventilation sets Comfort screen Alarm screen Counter screen Service screen Status screen
Curve screen

The coarse filter must be cleaned once a week.
The white fine filter cannot be cleaned. It should be
inspected visually weekly and replaced monthly or more
frequently if heavily soiled.
1. Pull the cover of the air inlet from the device.
2. Slide the filter cassette out from the cover of
the air inlet.
3. Remove the coarse filter (black) and the fine
filter (white) from the filter cassette.
4. Clean the coarse filter with mild soapy water,
afterwards rinse the filter thoroughly with clear
water. Let the filter dry completely in the air.
Instead of cleaning the coarse filter, you can insert a
new one.
CHANGING AND CLEANING THE FILTERS
Patient screen








MEANING OF SYMBOLS IN THE SYMBOL AREA OF THE DISPLAY
Symbol Meaning
  Capacity of internal battery
Device is set for operation with valve tube system
Device is set for operation with leakage tube system
Alarm sound was muted
Safety lock active
Safety lock inactive
Device must be serviced
Mask test active
Softstart ramp active
Trigger initiated through patient’s spontaneous respiration
MOST IMPORTANT OPERATIONS
Action Execution
Start ventilation press
Stop ventilation press , confirm query with “Yes” (press and confirm with )
Switch humidifier
heating on and off
press
Activate the safety lock
press => , then press =>
Deactivate the safety
lock press => , then press =>
Switch from
curve screen to
patient screen
press
Activate other ventila-
tion set
Select desired ventilation set with or , then select “Activate changes“ with
or touch wheel and press to confirm
Supressing the alarm
sound for 2 min
press
IMPORTANT ALARMS AND MESSAGES
Alarm / message Priority Cause
Pressure too high HIGH Pressure greater than set “Max. Pressure” or
positive pressure deviation greater than set
deviation
Pressure too low HIGH
Pressure lower than set “Min. Pressure” or nega-
tive pressure deviation greater than set deviation
Frequency too high HIGH Measured frequency greater than “Max. Fre-
quency”
Apnea HIGH Set apnea time exceeded
Leakage HIGH
Leakage greater than set leakage (volume too
great for 3 breaths) or flow greater 1 l/s (2 l/s
in CPAP mode)
Volume too high HIGH Tidal volume greater than “Max. Volume”
Volume too low HIGH Tidal volume smaller than “Min. Volume”
Oxygen too high MEDIUM Measured FiO2greater than set “Max. Oxygen”
Oxygen too low MEDIUM Measured FiO2lower than set “Min. Oxygen”
Min. Volume not reached Note Tidal volume smaller than set minimum volume
- Additional pressure insufficient
Safety Mode active --- Patient not breathing spontaneously; minimum
frequency safeguard via the device; only in PSV
mode
Message Priority Cause Remedy
Incorrect Tube
System
HIGH Incorrect tube system connected
(valve tube)
Change setting of tube system on rear
of device or replace tube system
Check
Measuring Tube
HIGH Pressure difference to 2nd pressure
sensor greater 3 hPa (> 15 s)
Check connection between measuring
tube and device
Internal Battery
empty
HIGH Battery empty
Battery must be charged; 1 minute until
the power supply fails completely; venti-
lation only possible with external power
supply
Check
Expiration Valve
HIGH Expiration valve does not allow
respiratory air to escape
Check expiration valve and replace if
necessary
Incorrect tube system connected
(leakage tube)
Change setting of tube system on rear
of device or replace tube system
Battery
Operation
MEDIUM Device is not connected to mains
power and is being supplied with
power by the internal battery
Press alarm button
Error int. Battery
MEDIUM Battery defective Device must be serviced
Int. Battery low MEDIUM Battery capacity 10 % Battery must be charged
Calibrate
O2Sensor LOW Oxygen sensor plugged in after
device was turned on
Calibrate oxygen sensor with ventilation
switched off
HOFFRICHTER GmbH · Mettenheimer Strasse 12/14 · 19061 Schwerin · Germany
Tel.: [phone] · Fax: [phone] · E-mail: [e-mail] · Web: www.hoffrichter.de
TRENDvent kurz-eng-1110-01, Art. No.: 5000 0405