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Servo i ventilator. Charles Gomersall Dept of Anaesthesia & Intensive Care The Chinese University of Hong Kong Prince of Wales Hospital. Version 1.1. Disclaimer. - PowerPoint PPT Presentation
Citation preview
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Servoi ventilator
Charles GomersallDept of Anaesthesia & Intensive CareThe Chinese University of Hong Kong
Prince of Wales Hospital
Version 1.1
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Disclaimer
Although considerable effort has been taken to ensure that the material in this tutorial
accurately reflects the information provided by Maquet AB in its publications the author
takes no responsibility for the accuracy of the information in this tutorial nor for any adverse
event that occurs as a result of using this tutorial. Users are advised to consult the
manual that accompanies their ventilator. Please note that this tutorial has not been
endorsed by Maquet AB.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Navigation
What’s different from a 300A?
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Setting the mode
Changing parameters
Advanced
Modes
Starting up
User interface – a quick tour
Alarms
Click on “Maquet” to end the tutorial at any stage
What’s different from a 300A?
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Insp.hold
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12-25 15:32
Charles Gomersall 2003
A quick tour
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
Additionalsettings
Additionalvalues
!
Menu touch pad
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
Using the menu touch pad
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Text and alarm messages appear here
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Alarmpofile
Additionalsettings
Additionalvalues
Fixed keys
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Alarmpofile
Additionalsettings
Silence/pre-silence alarms• Silences or pre-
silences alarms for 2 minutes
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
AlarmpofileSilence/pre-silence
alarms• Silences or pre-
silences alarms for 2 minutes
• After silencing an alarm the Alarm silence symbol is shown with the remaining time
1:58
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Silence/pre-silence alarms• When alarms are pre-
silenced a pre-silence symbol is shown as well as the remaining mute time
0:55
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Alarm profile• Press this button to:
– Display upper and lower alarm limits
– Adjust preset limits– Adjust the alarm sound level
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Additionalvalues
Alarm profile
100%
Alarm sound level
40Upper
5.0
Lower
40.0
5 30
3
Pressurecm H2O
Minute Ventilationl/min
Respiratory Rateb/min
End Exp. PressurecmH2O
Autoset
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Save• Saves:
– Current curve values– Current parameter values– Setting values
• 10 secs before and 10 secs after pressing key
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
700 ml
-70
70 l/min
50 cmH2O
TRecording
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
MenuAlarm
Review
Options
Compliancecomp.
Copy data
Biomed
Panel lock
Changepatient category
Close
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
MenuAlarm
Review
Options
Compliancecomp.
Copy data
Biomed
Panel lock
Changepatient category
Close
Recordedwaveforms
Trends
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
Recorded waveforms 12/25/02 14:32:10
Settings Cursor Close
50 cmH2O
-70
70 l/min
700 ml
40cmH2O
0l/min
475ml
0.0 s
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:32 Recording saved
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
Recorded waveforms 12/25/02 14:32:10
Settings Cursor Close
50 cmH2O
-70
70 l/min
700 ml
40cmH2O
0l/min
475ml
0.0 s
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:42
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:42
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:42
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:32
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:38
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:32
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:38
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Trends graphs
14:38
Cursor Hours 1 Close
14:00 15:00
l/min2
l/min20
ml800
0
0
0
Vee
MViMVe
VTiVTe
0
10.510.0
300296
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
i• This function is not currently
available
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
SIEMENS
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
Additionalsettings
Additionalvalues
!
Main rotary dial
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
.
Using the main rotary dial
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
.
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept .
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
550
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept .
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
Additionalsettings
Additionalvalues
!
Measured values appear here
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
15
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
7.48.5
6.0VTi 501VTe 493
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
15
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
7.48.5
6.0VTi 501VTe 493
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
15
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
5.28.5
6.0VTi 356VTe 346
Expiratory MinuteVolume Low
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
31
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
8.58.5
6.0VTi 292VTe 274
Respiratory Rate: High
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
31
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
8.58.5
6.0VTi 292VTe 274
Respiratory Rate: High
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
15
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
7.48.5
6.0VTi 501VTe 493
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Pplat (cmH2O)
34
40
Additionalsettings
Additionalvalues
Pmean 12PEEP 6RR (b/min)
15
30
5O2 (%)
42
48
36I:E 1:2.
0MVe (l/min)
7.48.5
6.0VTi 501VTe 493
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Additionalsettings
Nextpage
Ppeak
Pplat
Pmean
PEEP
RR
O2
Vee
I:E
MVe
MVi
VTi
VTe
34
24
12
5
15
21
0
1:2.0
7.0
7.5
501
471
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Additionalsettings
Nextpage
Ppeak
Pplat
Pmean
PEEP
RR
O2
Vee
I:E
MVe
MVi
VTi
VTe
34
24
12
5
15
21
0
1:2.0
7.0
7.5
501
471
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Additionalsettings
Nextpage
E
C static
PEEPtot
Re 24
Ri 17
C dyn 16
Tc
WOB tot 922
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Additionalsettings
Nextpage
E
C static
PEEPtot
Re 24
Ri 17
C dyn 16
Tc
WOB tot 922
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Additionalsettings
Nextpage
E
C static
PEEPtot
Re 24
Ri 17
C dyn 16
Tc
WOB tot 922
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Alarmprofile
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Additionalsettings
Additionalvalues
!
Special function keys
Startbreath
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breathsExp.hold
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12-25 15:32
Charles Gomersall 2003
Special function keys• Start breath
– Activates a set breath
• O2 breaths
– Changes the FiO2 to 1.0 for one minute
– Can be interrupted by re-pressing within one minute
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Special function keys• Expiratory hold
– Produces an expiratory pause hold for measuring total PEEP
– Lasts as long as the key is pushed up to a maximum of 30 secs
• Inspiratory hold– Produces an inspiratory pause hold for
measuring plateau pressure– Lasts as long as the key is pushed up to
a maximum of 30 secs
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
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Additionalsettings
Additionalvalues
!
Direct access knobs
Startbreath
O2
breathsExp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
O2 conc.
30PEEP
5Resp. rate
15PC above PEEP
15mmHgb/min% cm H2O
Direct access knobs
• Parameter controlled by each direct access knob depends on ventilation mode selected
• Turn the knob to the desired value shown in the box above the knob
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
PEEP
5Resp. rate
15PC above PEEP
15O2 conc.
30mmHgb/min% cm H2O
Direct access knobs
• Parameter controlled by each direct access knob depends on ventilation mode selected
• Turn the knob to the desired value shown in the box above the knob
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressureControl Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
PEEP
5Resp. rate
15PC above PEEP
15O2 conc.
30mmHgb/min% cm H2O
Direct access knobs
• Parameter controlled by each direct access knob depends on ventilation mode selected
• Turn the knob to the desired value shown in the box above the knob
PC above PEEP
15mmHg
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
PEEP
5Resp. rate
15Tidal volume
500O2 conc.
30mlb/min% cm H2O
Direct access knobs
• If the bar in the box is white the setting is within what is generally considered safe limits
PC above PEEP
15mmHg
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
PEEP
5Resp. rate
15Tidal volume
500O2 conc.
30mlb/min% cm H2O
Direct access knobs
• If the bar turns yellow the setting is outside what are generally considered safe limits
%
PC above PEEP
31mmHg
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
PEEP
5Resp. rate
15Tidal volume
500O2 conc.
30mlb/min% cm H2O
Direct access knobs
• If the bar turns red the setting is significantly outside what are generally considered safe limits
• An audible alarm and alarm message is given
%
PC above PEEP
60mmHg
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
PEEP
5Resp. rate
15Tidal volume
500O2 conc.
30mlb/min% cm H2O
Direct access knobs
• When you come to a safety limit the knob is inactive for 2 seconds in order to make you aware that you have passed a safety limit
%
PC above PEEP
60mmHg
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
O2 conc.
30PEEP
5Resp. rate
15PC above PEEP
15mmHgb/min% cm H2O
Direct access knobs
• NB When you turn a direct access knob the changes in ventilation take place from the next breath without additional confirmation
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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i
Additionalsettings
Additionalvalues
!
Mains indicator
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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Additionalsettings
Additionalvalues
!
Start/stop ventilation (standby)
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
Waveform area
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
700 ml
-70
70 l/min
50 cmH2O
T
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
T
700 ml
-70
70 l/min
50 cmH2O
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
T
700 ml
-70
70 l/min
50 cmH2O
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
T
700 ml
-70
70 l/min
50 cmH2O
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
T
700 ml
-70
70 l/min
50 cmH2O
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Additionalsettings
Additionalvalues
ModeVolume Control Automode Admit
patient Nebulizer Status
T
700 ml
-70
70 l/min
50 cmH2O
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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i
Additionalsettings
Additionalvalues
!
Patient category
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
What’s different from a Servo 300/300A?
Startbreath
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Insp.hold
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12-25 15:32
Charles Gomersall 2003
Volume control
Pressure support
User interface
Volume support
Apnoea time
Inspiratory rise time
AutomodeSIMV
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Volume control
Startbreath
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12-25 15:32
Charles Gomersall 2003
Volume control• 300 and 300A
– If patient’s breathing effort reaches 2 cm H2O below preset PEEP ventilator permits a higher flow
– pressure is then regulated to 2 cm H2O above PEEP
• Servoi
– If a pressure drop of 3 cm H2O is detected during inspiration the ventilator switches to pressure support, resulting in increased flow
– When flow to calculated target level flow maintained until set tidal volume delivered
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Volume support
Startbreath
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12-25 15:32
Charles Gomersall 2003
Minute volume• 300 or 300A
– If RR < set RR (ie minute vol. < set minute vol.)
– new target VT is calculated (based on preset minute volume) & used to regulate insp. pressure
– Max. VT =150% of preset
• Servoi
– Neither RR nor minute volume are set
– Inspiratory pressure is regulated purely based on preset VT
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Inspiratory rise time• 300 and 300A
– Inspiratory rise time set as a % of breath cycle time, which is in turn dependent on set RR
• Servoi
– Inspiratory rise time set as
• % in control and SIMV modes
• absolute time (s) in support modes. (NB. As a result the proportion of inspiration taken up by rise time will increase with RR)
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
I-E cycling• 300 and 300A
– I-E cycling occurs when inspiratory flow = 5% of maximum inspiratory flow
• Servoi
– I-E cycling occurs when inspiratory flow = set % of maximum inspiratory flow
– Set % = inspiratory cycle-off
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Apnoea back-up• 300 and 300A
– Apnoea > 20 secs (adults) pressure regulated volume control
• Servoi
– Apnoea > set apnoea time Back-up mode (volume control)
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Pressure support
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Apnoea back-up• 300 and 300A
– None
• Servoi
– Apnoea > set apnoea time Back-up mode (pressure control)
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Inspiratory rise time• 300 and 300A
– Inspiratory rise time set as a % of breath cycle time, which is in turn dependent on set RR
• Servoi
– Inspiratory rise time set as an absolute time (in seconds).
– NB. As a result the proportion of inspiration taken up by rise time will increase with RR
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
I-E cycling• 300 and 300A
– I-E cycling occurs when inspiratory flow = 5% of maximum inspiratory flow
• Servoi
– I-E cycling occurs when inspiratory flow = set % of maximum inspiratory flow
– Set % = inspiratory cycle-off
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
Inspiratory rise time
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Inspiratory rise time• 300 and 300A
– Always set as a % of cycle time
• Servoi
– Set as a % of cycle time control modes and SIMV
– Set as an absolute time in support modes
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Apnoea time• 300 and 300A
– Preset• Adult 20 s• Paediatric 15 s• Neonate 10 s
• Servoi
– Adjustable in volume support, pressure support/CPAP and SIMV modes
– Press “Alarm profile” to set time
• Adult 15-45 s• Infant 5-15 s
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
SIMV• 300 and 300A
– SIMV cycle =
– SIMV period =
• Servoi
– SIMV cycle =
– SIMV period = set breath cycle time
rate resp preset60
rate SIMV60
rate CMV60
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
SIMV• 300 and 300A
– Mandatory (SIMV) breath given at end of SIMV period if patient does not trigger ventilator during SIMV period
• Servoi
– Mandatory (SIMV) breath given after 90% of SIMV period if patient does not trigger ventilator in initial 90% of SIMV period
Startbreath
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breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
Automode• 300A
– Ventilator shifts from control to spontaneous mode if patient triggers 2 consecutive breaths
• Servoi
– Ventilator shifts from control to spontaneous mode if patient triggers ventilator
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Automode• 300A
– Ventilator shifts from spontaneous to control mode after a set period of apnoea:
• Adult 12 s• Paediatric 8 s• Neonate 5 s
• Servoi
– Ventilator shifts from control to spontaneous mode after trigger time-out period
– Increases with each successive breath until the set trigger timeout limit is reached
Startbreath
O2
breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Setting the mode
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
Tidal volume
500
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. pause
10
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Volume control Automode Ti =1.33 s (33%)
.
Cancel Accept
Select ventilation mode
Volume control
Pressure control
Pressure Support/CPAP
PRVC
Volume Support
SIMV (PRVC)Pressure Support
SIMV (Press. Control)Pressure Support
SIMV (Vol. Control)Pressure Support
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
PC above PEEP
18
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
• If the bar in the box is white the setting is within what is generally considered safe limits
PC above PEEP
18
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
• If the bar turns yellow the setting is outside what are generally considered safe limits
PC above PEEP
31
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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12-25 15:32
Charles Gomersall 2003
• If the bar turns red the setting is significantly outside what are generally considered safe limits
PC above PEEP
60
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
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Charles Gomersall 2003
Inspiratory rise time• Can be altered to increase
patient comfort• Some patients find sudden
“bolus” of gas uncomfortable• Excessively long rise time can
result in receiving preset levels of ventilatory support for relatively short periods
Startbreath
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Insp.hold
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Charles Gomersall 2003
Inspiratory rise time• Control modes and SIMV
– Rise time set as a % of cycle time– SIMV
• Cycle time is set
– Control modes• Cycle time = 60/RR
Startbreath
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Insp.hold
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Charles Gomersall 2003
Inspiratory rise time• Support modes
– Rise time set as an absolute timeProportion of inspiratory time that
is taken up by rise time increases as cycle time shortens (ie increased RR)
Startbreath
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Insp.hold
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Charles Gomersall 2003
Triggering
Startbreath
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Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Trigger sensitivity.
V-20 0
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Trigger sensitivity
-2-20 0
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
Automode
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Automode• When automode has been
selected the soft key turns white
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control
AutomodeVolume support
Admitpatient Nebulizer Status
O2 conc.
30PEEP
5Resp. rate
15Tidal volume
500mlb/mincm H2O%
AutomodeVolume support
• Control mode
Startbreath
O2
breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control
AutomodeVolume support
Admitpatient Nebulizer Status
O2 conc.
30PEEP
5Resp. rate
15Tidal volume
500mlb/mincm H2O%
AutomodeVolume support
• Control mode
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control
AutomodeVolume support
Admitpatient Nebulizer Status
O2 conc.
30PEEP
5Resp. rate
15Tidal volume
500mlb/mincm H2O%
AutomodeVolume support
• Support mode
Startbreath
O2
breathsExp.hold
Insp.hold
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Charles Gomersall 2003
ModeVolume Control Automode Admit
patient Nebulizer Status
Additionalvalues
Set ventilation mode Pressure control Automode Ti =1.33 s (33%)
PC above PEEP
18
Resp. Rate
15
PEEP
5
O2 conc.
40
I:E
1:2.0
T. Insp. rise
5
Trigger sensitivity
V
Basic I:E Trigger
.
Cancel Accept
Insp. cycle off
5
Trigger timeout
7
PS above PEEP
20
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Automode• Automode can only be set in
association with the following modes of ventilation– Volume control– Pressure regulated volume control– Pressure control
Click on a mode to find out more about it or on the return button to return to the previous menu
Startbreath
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Insp.hold
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Charles Gomersall 2003
ModesVolume control
Pressure control Pressure support/CPAP
Volume support
PRVC SIMV
Automode Back up ventilation
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Volume control• volume preset assist/control
ventilation• ventilator delivers preset volume in
preset inspiratory time with preset pause time and preset flow pattern– when triggered by the patient’s
respiratory efforts– as determined by the preset ventilatory
rate
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Volume control
700 ml
-70
70 l/min
50 cmH2O
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Volume control• Ventilator will deliver breaths to
ensure preset frequency is achieved• In general preset volume is delivered
according to preset waveform for all breaths
• With the Servo i it possible for the patient to obtain a higher inspiratory flow and tidal volume from the ventilator than is pre-set
Startbreath
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Insp.hold
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Charles Gomersall 2003
Volume control• Flow is usually dependent on preset
volume and the inspiratory time.• Inspiratory time is determined by the
I:E ratio and the respiratory rate• If the flow does not meet patient
demand the flow is automatically increased.
Startbreath
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Insp.hold
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Charles Gomersall 2003
Volume control• If a pressure drop of 3 cm H2O is
detected during inspiration the ventilator switches to pressure support, resulting in increased flow
• When flow to calculated target level flow maintained until set tidal volume delivered
Startbreath
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Insp.hold
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Charles Gomersall 2003
Volume control
Time
Flow
Insp.time
Pausetime
Exp time
Startbreath
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Insp.hold
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Charles Gomersall 2003
Volume control
Time
Flow
Insp.time
Pausetime
Exp time
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Pressure control• Pressure preset assist/control
ventilation• Similar to volume control
except pressure is preset• Inadequate flow unlikely to be a
problem
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure control
PEEP
PC above PEEP
Pre
ssu
reFl
ow
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure control• Theoretical decrease in risk of
barotrauma• Improved oxygenation due to
decelerating flow pattern• Risk of hypoventilation as lung
compliance falls– monitor tidal and minute volumes
Startbreath
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breathsExp.hold
Insp.hold
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12-25 15:32
Charles Gomersall 2003
Pressure regulated volume control• Preset tidal volume delivered in preset
inspiratory time at preset frequency• Ventilator automatically adapts
inspiratory pressure control level to changes in mechanical properties of chest
• Inspiratory pressure constant• Inspiratory flow decelerating
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
PRVCPre
ssu
reFl
ow
Volu
me
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
PRVCPre
ssu
reFl
ow
Volu
me
Upper Pressure limit
5 cm H2O
Startbreath
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Insp.hold
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Charles Gomersall 2003
PRVC• Has the advantages of pressure control
ventilation without the disadvantage of potential hypoventilation/over-ventilation as chest compliance changes
Startbreath
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Insp.hold
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Charles Gomersall 2003
PRVC
• With automode off:– PRVC
• With automode on:– PRVC if patient is apnoeic– VS if patient is triggering the
ventilator
Startbreath
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Charles Gomersall 2003
PRVC• In this mode the pressure is
titrated to the tidal volume• should not be used in a
situation where the inspiratory tidal volume leaving the ventilator is not an accurate reflection of delivered tidal volume (eg circuit leak, uncuffed tube)
Startbreath
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Insp.hold
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Charles Gomersall 2003
Volume support• Every breath is patient
triggered• Pressure square wave with
decelerating flow• Ventilator automatically titrates
pressure to achieve preset tidal volume with the lowest possible pressure
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Volume supportPre
ssu
reFl
ow
Volu
me
Upper Pressure limit
5 cm H2O
10 cm H2O
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Volume supportPre
ssu
reFl
ow
Volu
me
Upper Pressure limit
5 cm H2O
10 cm H2O
Maximum inspiratory
flowSet % of maxinspiratory flow
Startbreath
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Insp.hold
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Charles Gomersall 2003
Volume support• If apnoea time is exceeded
ventilator automatically:– Alarms and switches to Back up
mode (volume control with default settings) if Automode is off
• Remains in Back up mode until alarm is reset
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Pressure support/CPAP• With both PS and PEEP >0
– pressure support ventilation with PEEP
• With PEEP = 0– pressure support ventilation
• With PS = 0– PS of 2 cmH2O plus PEEP
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure support• inspiratory assist• constant preset airway
pressure supplied during inspiration
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure support
PEEP
PS above PEEP
Pre
ssu
reFl
ow
Volu
me
Maximum inspiratory
flowSet % of maxinspiratory flow
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure support
PEEP
PS above PEEP
Pre
ssu
reFl
ow
Volu
me
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure support• allows patient to control inspiratory
and expiratory times, inspiratory flow and tidal volumes. This control can improve patient comfort
• can be combined with SIMV or CPAP or used on its own in patients whose gas exchange is improving and in whom weaning is being attempted
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure support• pressure support of 3.5-14.5 cmH2O
required to overcome the additional work of breathing due to breathing through ETT and demand valve. Patients who require pressure support of < 6 cmH2O can probably be extubated
• may unload respiratory muscles and reduce diaphragmatic fatigue
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pressure support• disadvantages:
– VT and minute ventilation variable, excessively large VT may be delivered
– high initial flow and termination algorithm may be unsuitable for severe airflow obstruction
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Insp.hold
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Charles Gomersall 2003
Back-up ventilation
• Operates in association with volume support and pressure support/CPAP
• Does not operate when Automode is on
Startbreath
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Charles Gomersall 2003
Back-up ventilation
Pressuresupport/
CPAP
Pressure controlDefault pressure = PS or 20 cmH2ODefault I:E ratioDefault respiratory rateDefault inspiratory rise time
Apnoea>set apnoea time
Startbreath
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Charles Gomersall 2003
Back-up ventilation
Volumesupport
Volume controlVT = set VT
Default I:E ratioDefault respiratory rateDefault inspiratory rise time
Apnoea>set apnoea time
Startbreath
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Insp.hold
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Charles Gomersall 2003
• patient can breathe spontaneously but also receives a set number of volume controlled mechanical breaths
• volume controlled breaths are synchronized with the patient’s breathing to prevent the possibility of a mechanical breath on top of a spontaneous breath
• remaining breaths are pressure supported
SIMV (VC) & PS
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Insp.hold
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Charles Gomersall 2003
SIMV
Pressure
Flow
PEEPTime
Pressure support above PEEP
Trig Trig
Time
Startbreath
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Insp.hold
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Charles Gomersall 2003
SIMV (VC) + PS• If the patient is apnoeic the
ventilator delivers volume controlled breaths at the preset SIMV rate
• If the patient triggers the ventilator the response of the ventilator depends on the point in the ventilator cycle at which triggering occurs
Startbreath
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Insp.hold
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Charles Gomersall 2003
SIMV (VC) & PS• Time is split up into a series of
SIMV cycles• duration of each SIMV cycle =
rate SIMV preset60
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Charles Gomersall 2003
SIMV (VC) & PS• Each SIMV cycle is made up of
2 parts:– SIMV period
• =breath cycle time
– spontaneous period
Startbreath
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Charles Gomersall 2003
SIMV periodVolume controlled breath
SIMV cycle
Pressure supported breath
T T
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Insp.hold
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Charles Gomersall 2003
Volume controlled
breath
90% of SIMV period
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Insp.hold
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Charles Gomersall 2003
SIMV (PC) + PS• Very similar to SIMV (VC) &PS
except that controlled breaths are pressure rather than volume controlled
Startbreath
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Insp.hold
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Charles Gomersall 2003
SIMV (PRVC) + PS• Very similar to SIMV (VC) &PS
except that controlled breaths are PRVC breaths rather than volume controlled breaths
Startbreath
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Insp.hold
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Charles Gomersall 2003
Automode• Active in VC, PC and PRVC
modes• When automode is on ventilator
switches between control and spontaneous modes based on presence or absence of triggering
Startbreath
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Insp.hold
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Charles Gomersall 2003
Automode
Pressurecontrol
Volumecontrol
PRVC
Pressuresupport
Volumesupport
Volumesupport
Apnoea
Triggering
Apnoea
Triggering
Apnoea
Triggering
Startbreath
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Insp.hold
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Charles Gomersall 2003
Automode• Trigger timeout
– = duration of apnoea before ventilator switches from support mode to control mode
– The limit increases with each successive breath until the set trigger timeout limit is reached
Startbreath
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Insp.hold
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Charles Gomersall 2003
Automode• When automode has been
selected the soft key turns white
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control
AutomodeVolume support
Admitpatient Nebulizer Status
O2 conc.
30PEEP
5Resp. rate
15Tidal volume
500mlb/mincm H2O%
AutomodeVolume support
• Control mode
Startbreath
O2
breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control
AutomodeVolume support
Admitpatient Nebulizer Status
O2 conc.
30PEEP
5Resp. rate
15Tidal volume
500mlb/mincm H2O%
AutomodeVolume support
• Control mode
Startbreath
O2
breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
ModeVolume Control
AutomodeVolume support
Admitpatient Nebulizer Status
O2 conc.
30PEEP
5Resp. rate
15Tidal volume
500mlb/mincm H2O%
AutomodeVolume support
• Support mode
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Changing the parameters
Startbreath
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Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
O2 conc.
30PEEP
5Resp. rate
15PC above PEEP
15mmHgb/min% cm H2O
Changing parameters
• Direct access knobs• Additional settings
Startbreath
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breathsExp.hold
Insp.hold
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Charles Gomersall 2003
ModePressure Control Automode Admit
patient Nebulizer Status
Additionalsettings
Additionalvalues
O2 conc.
30PEEP
5Resp. rate
15PC above PEEP
15mmHgb/min% cm H2O
Changing parameters
• Direct access knobs• Additional settings
Startbreath
O2
breathsExp.hold
Insp.hold
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Charles Gomersall 2003
AlarmsThis module will be available in later versions of this tutorial
Startbreath
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Charles Gomersall 2003
Starting up
Startbreath
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Insp.hold
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Charles Gomersall 2003
Startbreath
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Pre-use check
Startbreath
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Charles Gomersall 2003
Additionalsettings
Additionalvalues
Standby
Do you want to start Pre-use check?
Yes No
to start ventilationPress
Startbreath
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Additionalsettings
Additionalvalues
Standby
Do you want to start Pre-use check?
Yes No
to start ventilationPress
Startbreath
O2
breathsExp.hold
Insp.hold
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Charles Gomersall 2003
Startbreath
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Insp.hold
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Charles Gomersall 2003
Pre-use check
•Do not use the ventilator if it does not pass the pre-use check
Startbreath
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Insp.hold
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Charles Gomersall 2003
Check batteries
Startbreath
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Insp.hold
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Charles Gomersall 2003
Startbreath
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Insp.hold
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Status
Additionalsettings
Additionalvalues
Startbreath
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Status
Additionalsettings
Additionalvalues
Status
General
O2 cell
Exp. cassette
Modules
Options
Pre-use check
Version Universal
Serial no. 2017
Pre-use check Passed: 2002-02-06 14:52
Operating time 167 hours
Next Preventative Maintenance
1423 hours
Battery backup time 312 min
Barometric pressure 1023 hPa
Air Pressure 394 kPa*100
O2 pressure 401 kPa*100
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Status
Additionalsettings
Additionalvalues
Status
General
O2 cell
Exp. cassette
Modules
Options
Pre-use check
Version Universal
Serial no. 2017
Pre-use check Passed: 2002-02-06 14:52
Operating time 167 hours
Next Preventative Maintenance
1423 hours
Battery backup time 312 min
Barometric pressure 1023 hPa
Air Pressure 394 kPa*100
O2 pressure 401 kPa*100
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Status
Additionalsettings
Additionalvalues
Status
General
O2 cell
Exp. cassette
Modules
Options
Pre-use check
Modules status
Battery 52 min, Slot position 1
Battery 51 min, Slot position 2
Battery 49 min, Slot position 3
Battery 52 min, Slot position 4
Battery 52 min, Slot position 5
Battery 52 min, Slot position 6
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
AdvancedThis module will be available in later versions of this tutorial
Startbreath
O2
breathsExp.hold
Insp.hold
Mainscreen
Menu
Quickstart
Alarmprofile
Save Trends
i
!
12-25 15:32
Charles Gomersall 2003
Alarm messages• This module will be available in
a later version of this tutorial
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