Description of device
9
EN
2. Description of device
2.1 Intended use
SOMNO
vent
CR is an automatically-regulating CS therapy device with autoTriLevel
principle suitable for treating patients from the age of 12
•
with periodic respiration or Cheyne-Stokes breathing (e.g. in
cardiac
insufficiency)
•
as well as central, mixed and complex sleep apnea.
The therapy device adapts ventilation automatically and continuously to the changing
requirements of the patient in question.
The SOMNO
vent
CR is
not
suitable for life-support use on patients requiring ventilation.
Caution!
To ensure successful therapy with the SOMNO
vent
CR, the pressure limits prescribed
by the doctor and the background ventilation frequency must be determined and
adjusted accordingly in a sleep laboratory.
2.2 Description of function
The SOMNO
vent
CR has an electronically-controlled fan which takes in ambient air
through a filter and pumps it to the fan outlet. From here, the air flows through the tube
system and the breathing mask to the patient.
The SOMNO
vent
CR analyzes the pressure in the mask and the air flow to the patient and
detects from this sleep-related respiratory disorders such as Cheyne-Stokes breathing or
airway obstructions.
Depending on the events detected, the three pressure levels IPAP (pressure during
inspiration), EPAP (pressure at the start of exhalation) and EEPAP (pressure at the end of
exhalation) are automatically adapted to the current requirements of the patient.
•
If respiratory volume drops, the device supports the patient's breathing
by continuously increasing IPAP/EPAP difference. In this way, ventilation
in Cheyne-Stokes breathing and in central or mixed sleep apnea
syndrome is normalized.
