Recording Measurement Data; Sensors; Sensors For Flow And Snoring Noises; Thermistor Sensor For Breathing - Lowenstein Medical Sonata Gebrauchsanweisung

Sonata / Scala

3. Recording measurement data

3.1. Sensors

3.1.1. Sensors for flow and snoring noises

The detection of patient flow is determined by the
use of a nasal flow prong that transmits the pressure
signal to an internal pressure transducer of the
device. The flow prong can be easily applied by the
user and will have no adverse affect on the quality of
sleep. The use of a flow prong also eradicates the
problem where adhesive sensors cannot be used.
(i.e.: patients with beards). In addition the flow prong
is an economical choice of sensor as it is commonly
available. No additional sensor is required for
respiratory and snoring
sounds are transmitted to the device via the flow
prong. The built in microphone detects the sounds
which are then electronically analysed. Therefore
additional microphones are not required.
Due to the high sensitivity of the internal pressure
transducer, the device is capable of measuring and
recording ultra fine pressure differences associated
with patients who mouth breathe.
The flow prong must be attached to the socket
marked with the following symbol:
The flow prong should be used in accordance with
the manufacturer's instructions.
Warning:
The flow prong is intended for single patient use. No
attempt should be made to clean or use the flow
prong the more than once. Multiple use can result in
cross infection!

3.1.2. Thermistor sensor for breathing

Additional to the flow prong a Thermistor can be
used to measure the breathing. Please also observe
the instructions accompanying the sensor.
The Thermistor must be attached to the socket
marked with the following symbol:

3.1.3. Sensor for PAP (pressure)

When performing measurements on a patient under-
going PAP therapy, a Pressure Diff Adapter (PDA,
two connections) or
connection) is used instead of the flow prong.
PDA connection: The patient-near connection of the
PDA is connected with the socket marked with
patient-far connection with the socket marked with
Connection of PAP adapter: The PAP adapter is
connected with the socket marked with
3.1.4. Sensor for oxygen saturation and pulse
frequency
A pulse oximeter has been integrated into the device
for the purpose of measuring oxygen saturation and
pulse frequency. A failure of the finger sensor or a
detection. Respiratory
an adapter hose (one
.
missing data update by the pulse oximeter is
indicated to the user by the red LED on the device. At
the same time the values for SpO
to 0.
Please ensure that blood circulation at the point of
measurement is not affected by the manner in which
the sensor has been secured. Excessive pressure
should not be exerted on the finger, especially if the
temperature exceeds 41 ° C.
When using a finger sensor please secure the sensor
and cable. All nail polish (coloured or clear) must be
removed from the measuring finger to obtain usable
data.
To minimize interference (e.g., motion artifacts), the
pulse oximetry values are filtered by digital data
processing. As a result of data averaging and signal
processing, slight delays in the display of the pulse
oximetric values occur. The internal pulse oximeter
works with a time horizon of 4 seconds. By additio-
nally considering the change tendency, the minimum
value of saturation at the end of an apnea is correctly
reproduced. The data is updated at every beat, so
there are no measurable delays due to data refresh
and transmission.
The finger sensor must be attached to the socket
marked with the following symbol:
Please read and understand the instructions accom-
panying the finger sensor.

3.1.5. Sensor for respiratory effort

The sensors used for recording thorax and abdomi-
nal movement consists of two small rubber pressure
pads that are connected to the device via measuring
hoses. The sensors are inserted into the pockets of
the elasticated effort belts. The thorax belt is applied
at the height of the sternum, the abdominal belt in the
stomach region.
For hygiene reasons and to avoid allergic reactions
the belts should be worn over the clothes.
The effort sensor to monitor thorax movement must
be attached to the socket marked with
effort sensor to monitor abdominal movement must
be attached to the socket marked with
The effort belts are adjustable in size due to the
Velcro fasteners, and should be suitable for most
patients. These belts are however also available in
special sizes.
Note:
Over stretching of the belts may result in poor signals
and possible loss of data.
Thorax and Abdomen sensors with RIP technology
the
can be uses alternatively. Please read and under-
stand the instructions accompanying this sensors.

3.1.6. Sensor for body position

The position sensor integrated in the device displays
information related to the patient's body position
during the study.
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EN
and pulse are fed
2
and the
.