Page 8 / 38
2.4
Oxygen backup cylinder
-
In case of shortages or loss of central gas supply, Dräger anesthesia devices will continue with
mechanical ventilation. Shortages will lead to alarms of the anesthesia, please refer to the
instructions for use and check under the chapter “Fault - Cause - Remedy”. To ensure the
desired FiO2 level, an
O2 backup cylinder is required
. For connection, check the instructions
for use. If both sources of oxygen (central gas supply and backup cylinders) are depleted, the
hand bag (incl. the hose between the hand bag and the breathing system, or the flexible bag
arm) has to be disconnected from the breathing system. The anesthesia device will continue
ventilation with ambient air (21% FiO2 and no volatile agents can be applied), because of the
electrically driven ventilators.
2.5
Evacuation of gases (Scavenging)
-
To avoid oxygen accumulation in the direct environment of the device, a proper
scavenging is recommended although no anesthetic agent is used
. For more information
– Active Gas Scavenging (AGS) alternatives
2.6
Disconnection of vaporizers & N
2
O
-
In order to prevent the use of anesthetic agents in a situation that might harm the patient or the
patient’s environment, it is recommended that you
disconnect all vaporizers
from the
anesthesia device and store them in the operation room. This is particularly important because
even
very small concentrations of volatile agents may trigger malignant hyperthermia
(e.g. of the clinician or the patient).
-
The fresh gas flow must only contain a mix of oxygen and medical air. The use of nitrous-oxide
(N2O) during long-term ventilation must be prevented as users with no anesthesia experience
are possibly not familiar with the fact that a decrease of the oxygen concentration in the fresh
gas flow would increase the N2O concentration in the inspiratory gas. Therefore, it has to be
ensured that
no N2O hose and no N2O cylinder are connected to the anesthesia device
.
Furthermore, in Dräger anesthesia devices with an electronic gas mixer (Perseus A500 with
electronic gas mixer) usage without N2O has to be configured in the system configuration.
Содержание Perseus A500
Страница 34: ...Page 34 38 6 1 Decision tree ...
Страница 37: ...Page 37 38 10 1 Decision tree ...
