SOMNOmedics NIBP PLM User manual

SOMNOmedics GmbH –Am Sonnenstuhl 63 –D-97236 Randersacker
Tel. (+49) 931 / 35 90 94-0 –Fax (+49) 931 / 35 90 94-49
E-Mail [e-mail] –Internet www.somnomedics.eu
SOMNOtouch™ NIBP
PLM
I
NSTRUCTION MANUAL

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SOMNOmedics GmbH –Am Sonnenstuhl 63 –D-97236 Randersacker
Tel.: (+49) 931 / 35 90 94 - 0 –Fax: (+49) 931 / 35 90 94 - 49
E-Mail: [e-mail] - Internet: www.somnomedics.eu
Rev. 0
24.04.2014
All proper names marked with TM are copyright protected by
SOMNOmedics.

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Content
1Introduction.................................................................................................................................4
2Initialization.................................................................................................................................4
3Applying the sensors...................................................................................................................6
4Analysis - Global Settings DOMINO light....................................................................................7
4.1 LM-Analysis (LM: Leg Movement)........................................................................................8
5Report.......................................................................................................................................10
6Technical Specifications............................................................................................................11
7Cleaning / Desinfection..............................................................................................................11

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1 Introduction
The PLM-Combi-Sensor expands the possibilities of your SOMNOtouchTM NIBP to record periodic leg
movements.
This instruction manual gives you information on the application and sensor specific settings. Please
note the main instruction manual of the SOMNOtouchTM NIBP.
Please refer to the safety notes in the main manual of the SOMNOtouch NIBP.
Device and sensors may not be used in live sustaining or life supervising
measures.
2 Initialization
In the Easystart menu, click “change to advanced mode” in the upper bar. Enter the patient data (see
chapter 6.1 of the main manual) and switch to the tab “montage”. In the appearing window select the
existing montage “SOT NIBP (xx)” (red arrow in figure below).
To add the PLM sensor to the sensor bar (green ellipse in former figure) click at the small black arrow
indicated by the green arrow.

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The following window opens. Select the PLM l/r sensor and assign it to the list of “Selected” sensors.
Now activate the PLM sensor to add it to your montage. The PLM sensor will appear in the picture.

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To save this montage, press the “Save as” button (green arrow) and enter a name as depicted in the
figure below. After clicking the “OK”button, the new montage will appear in the list of available
montages.
Having completed the initialization steps (see chapter 6.1 of the main manual), you can proceed to
attaching the PLM sensors which is described in the next chapter.
3 Applying the sensors
Clean the places where you want to fix the PLM- electrodes with Nuprep.
Apply the PLM electrodes at the Musculus Tibialis Anterior of each leg between knee and ankle as
shown in the figure below and connect them to the corresponding sensor electrodes. You will need
three electrodes for PLM1 and two for PLM2. Fix the cables with some adhesive tape so that the
recording won’t be disturbed by their movement.
Due to Intelligent Connect™ you can plug the PLM sensor arbitrarily in one of the two sockets. If you
are using the ECG sensor as well, it does not matter which sensor gets connected to which socket.

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4 Analysis - Global Settings DOMINO light
In all analysis settings you can change the settings of the parameters for the analysis, the colour
display of the analysis curves and the colour classification of the events (click at the colour field; red
frames in the figures). The analysis source is shown down right (blue frames in the figures).
Select the analysis template “ECG/Blood Pressure”and activate the LM Analysis:

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4.1 LM-Analysis (LM: Leg Movement)
The LM Analysis detects periodic leg movements during sleep and restless legs during the day.
Periodic leg movements can be the reason for disturbed sleep and require further diagnostic.
This motor analysis can provide the diagnosis of Restless Legs together with the clinical symptoms.
1) Analysis Window [s]
Time period used by the analysis to determine the baseline.
2) Ratio Mag. [%]
This parameter is not used for the SOMONtouch PLM analysis with the PLM Combi sensor.
3) Ratio PLM [%]
This ratio shows the percentage change needed in relation to the baseline. All values above this ratio
will be detected as a Leg Movement.
4) Min. Duration [ms]
Minimum duration for a Leg Movement event.
5) Max. Duration [ms]
Maximum duration for a Leg Movement event.
6) Connection time [ms]
If there are two PLM events in a short interval they are marked as one if the distance between the two
events is smaller than the given connection time.
7) Min. Signal
The mean activity is calculated during a detected LM.
If this value is higher than thevalue Min. Signal a LM will be scored.
8) Compensation Act. [%]
This parameter is not used for the SOMONtouch PLM analysis with the PLM Combi sensor.
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PLM2

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9) „Synchronisation [ms]“
Maximum distance between events in both Leg Movement channels (PLM l, PLM r) for a simultaneous
movement to be detected.
10) Min. Distance [s]
Minimum distance between 2 Leg Movements for a PLM event to be detected.
11) Max. Distance [s]
Maximum distance between 2 Leg Movements for a PLM event to be detected.
12) Min. Number
Minimum number of successive Leg Movements for a PLM event to be detected.
13) Flow correlation [s]
Defines the time frame for the correlation of a LM event to a flow event.
14) Body position Correlation [s]
The correlation between a LM event and a Body Position Change can be scored. The delay between
the 2 events can be set here. It will indicate the maximum time interval between the LM event and the
correlating Body Position Change.
15) separated analysis for PLM l/r
Activation of this checkbox enables you to analyse PLMs separately for the right and left leg. You get
an additional analysis channel where the events for left and right leg can be displayed and edited
separately.
PLM r
PLMlinks
PLM l
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LM

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5 Report
Select the following report sections:
Click “View” to display the report.
Note: Only events during TIB are considered in the report.
Definitions:
Isolated-LMs (Index)
Leg Movements during TIB which do not meet the PLM criteria
(index: per hour of sleep).
PLMs (Index)
Leg Movements during TIB which meet the PLM criteria.
Body Position-LMs (Index)
Leg Movements caused by changes of the Body Position during TIB.
PLM distribution (bar graph):
The index for the PLM distribution is shown in lying and upright body position. The distribution will
indicate whether the RLS (Restless-Legs-Syndrome) disease is Type 1 (PLM’s occurred mainly in
the first third of sleep) or Type 2 (PLM’s occurred mainly in the last third of sleep). Utilising this
information, makes it is possible to select a proper drug with the appropriate effect.

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6 Technical Specifications
Name
Measuring range
Frequency range
EMG
±1.2mV ± 5%
1-100 Hz ± 20%
7 Cleaning / Desinfection
Clean the sensors according to the directions of the SOMNOtouch NIBP main manual.