Dräger Cato - Breathing System; Medical Gas Supply; Ventilator

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Technical data
Medical gas supply
Breathing system
Ventilator
Medical gas supply
Pneumatic connections...............: Piped medical gas supply – O2, N2O, AIR
Spare gas cylinders 11 L or 3 L for O2 and N2O (optional)
Anaesthetic gas scavenging
Required pressures (piped supply): O2 : 2.7 to 5.5 bar
N2O : 2.7 to 5.5 bar
AIR : 2.7 to 5.5 bar
Maximum gas consumption.........: O2 : 100 L/min at 5 bar ± 10%, including 50 L/min at 5 bar ± 10% for O2 flush
N2O : 20 L/min at 5 bar ± 10%
AIR : 50 L/min at 5 bar ± 10%
O2 shortage signal .....................: Whistling signal tone.
Triggered: at latest when O2 pressure drops below 170 kPa (1.7 bar)
Stops: at latest when O2 pressure rises above 260 kPa (2.6 bar)
Breathing system
Gas volume ................................: Approx. 3 L total enclosed gas volume
Compliance................................: Approx. 3 mL/mbar
Approx. 4 mL/mbar with absorber
Absorber volume ........................: 1.5 L soda lime Drägersorb 800
Binds approx. 150 L CO2, sufficient for approx. 6 hours of operation
Pressure relief ............................: 90 ± 10 mbar
Pressure limiting valve ................: Variable between 5 and 70 mbar, ± 15% of set value
Patient connections ....................: ISO cone 22 mm ;
Anaesthetic gas scavenging .......: Nominal socket diameter 27 mm or ISO cone 30 mm ; (= EN 1281-1)
Leakage ventilation system .........: < 120 mL/min at 30 mbar
Maximum pressure in
breathing system ........................: 10 to 80 mbar ± 20%
or +3 mbar, but at least 10 mbar over PEEP
Expiratory and
inspiratory resistance..................: ≤4 mbar with a flow of 60 L/min (according to EN 740)
Ventilator
Drive gas consumption ...............: 2 L/min O2 or AIR in operation
0 L/min in »standby« mode
Tidal volume (VT) ........................: < 20 mL ± 30 % or ± 6 mL
20 to 100 mL ± 10 % or ± 10 mL
100 to 1400 mL ± 5 % or ± 15 mL
Frequency (fIPPV) ........................: 6 to 80 per minute
Minute volume (* E).....................: to 25 L/min
TI:TE ...........................................: 1:3 to 2:1 ± 5 %
TIP:TI .........................................: 0 to 60 % ± 5 %
Inspiratory flow * E max...............: max. 75 L/min
Frequency (fIMV) .........................: 3 to 80 per minute ± 5 % (fIMV < fIPPV)
PEEP .........................................: 0; 2 to 20 mbar ± 10 % or ± 2 mbar (Pmax – PEEP > 10 mbar)
Trigger pressure.........................: – 1 mbar ± 0.5 mbar (invariable)