Machine - Safety Features Flashcards
Noninterchangeable gas-specific connections to pipeline inlets (DISS) with pressure gauges, filter, & check valve
Prevent incorrect pipeline attachments; detect failure, depletion, or fluctuation
Pin index safety system (PISS) for cylinders with pressure gauges, & at least one oxygen cylinder
Prevent incorrect cylinder attachments; provide backup gas supply; detect depletion
Low O2 pressure alarm
Detect O2 supply failure at the common gas inlet
Minimum O2/N2O ratio controller device (hypoxic guard)
Prevent delivery of less than 21% O2
O2 failure safety device (shut-off or proportioning device)
Prevent administration of N2O or other gases when the O2 supply fails
O2 must enter the common manifold downstream to other gases
Prevent hypoxia in event of proximal gas leak
O2 concentration monitor & alarm
Prevent administration of hypoxic gas mixtures in event of a low-pressure system leak; precisely regulate O2 concentration
Automatically enabled essential alarms & monitors (ex. O2 concentration)
Prevent use of the machine without essential monitors
Vaporizer interlock device
Prevent simultaneous administration of more than one volatile agent
Capnography & anesthetic gas measurement
Guide ventilation; prevent anesthetic overdose; help reduce awareness
O2 flush mechanism that does not pass through vaporizers
Rapidly refill or flush the breathing circuit
Breathing circuit pressure monitor & alarm
Prevent pulmonary barotrauma & detect sustained positive, high peak, & negative airway pressures
Exhaled volume monitor
Assess ventilation & prevent hypo- or hyperventilation
Pulse oximetry, BP, & ECG monitoring
Provide minimal standard monitoring
Mechanical ventilator
Control alveolar ventilation more accurately & during muscle paralysis for prolonged periods
