Dräger Atlan A100 User Manual

90 Instructions for use | Atlan A100 (XL), A300 (XL), A350 (XL) SW 2.1n
Assembly and preparation
4.8.4.1 Calculating the resistance of the breathing system and connected
accessories
The sum of the resistance values in the inspiratory limb must not be less than
–6.0 hPa (cmH
2O). The sum of the resistances in the expiratory limb must not
exceed 6.0 hPa (cmH
2O).
Only include resistance values in calculations that were taken under the same flow
conditions:
The following formula is used to calculate the resistance (R):
R
Inspiration =
R
Breathing system_insp - RInsp hose - RBreathing bag hose - RInsp filter (port) - RInsp filter
(Y-piece)
RExpiration =
R
Breathing system_exp + RExp hose + RExp filter (port) + RExp filter (Y-piece)
If necessary, take into consideration other parts such as water traps or additional
hoses. The specifications for the resistance of the breathing system can be found
on page 297. The specifications for all other accessories can be found in the
respective instructions for use.
In these instructions for use, the specifications for the resistance in the inspiratory
limb are regarded as negative values. The resistance values given in the
instructions for use for the accessories must therefore be subtracted from the
inspiratory resistance of the breathing system.
Example of calculation: Adult breathing hose with filter on Y-piece, no filters
on the ports
Since R
Inspiration is greater than –6 hPa (cmH2O) and RExpiration is less than 6 hPa
(cmH
2O), this configuration may be used.
Patient category Flow
Adults 30 L/min
Pediatric patients 15 L/min
Neonates 2.5 L/min
Inspiratory resistance
[hPa (cmH
2O)]
at 30 L/min
Expiratory resistance
[hPa (cmH
2O)]
at 30 L/min
Breathing system with reus-
able CO
2 absorber and dis-
posable dust filter
R
Breathing_sys-
tem_insp
–1.2 R
Breathing_system_-
exp
2.9
Breathing hose - R
Insp_hose 0.5 + RExp_hose 0.5
Breathing bag hose - R
Breathing_
bag_hose
0.3
Filter at inspiratory port - R
Insp_filter(port) 0
Filter at expiratory port + R
Exp_filter(port) 0
Filter at Y-piece - R
Insp_filter(Y-piece) 2+ RExp_filter(Y-piece) 2
Result R
Inspiration –4.0 RExpiration 5.4

Dräger Atlan A100 Specifications

General

Brand	Dräger
Model	Atlan A100
Category	Medical Equipment
Language	English