!
8. Battery gauge for
wEc1
and
wTn1
: change the battery when less than 10%.
9. Icon representing the ECG (QRS) or Tonometric (pressure wave) signals depending on active sensor.
10. Data coming from
wRs1
to be processed: a short bar means better condition compared to a long bar
(depends on computer speed, other running programs, …).
11. The positive battery terminal becomes yellow during standby, i.e. when “Freeze” is active or during
situations different from run-time signals capture and display.
12. Sensor1 corresponds to the red signal (Ecg or Tonometer) while Sensor2 corresponds to the blue signal
(only Tonometer).
Functions described below are related to the WPulsePen Sw, of which the WPulsePen_LP Sw is a simplified
version.
Select the “New examination” icon and insert Patient information including name, surname, birth date,
gender: at this point the keys corresponding to the Arteries will be enabled. Choosing one of them, a new
window will be opened. Place the
wTn1
probe/s on the region of interest: captured signals will be displayed
on the computer screen. An automatic freeze function stops the signal capture in case of no activity on
Sensor2 (blue trace).
In order to obtain good quality tonometric signals, the patient must be lying down on the bed. The operator
must keep his/her elbow firmly lying on a stable surface and hold the
wTn1
probe as indicated in the figure
below with his/her fingers touching the patient’s skin, reducing in such way tremors. The probe must be
kept perpendicular to the skin and not tilted.
Once a good quality signal has been captured, when the traffic light on the top-
central screen shows green (more info from software Help), the operator can stop the
capture lifting out the Sensor2. The last 10 cardiac complexes are saved and
automatically analyzed by pressing the icon with the diskette symbol or the Enter
key. At this point, a new window will be displayed in order to insert systolic and
diastolic pressures measured immediately before or afterward by an external
sphygmomanometer. In case of peripheral artery, the operator should use, in addition,
a mea
sur
in
g tape to obtain three distances, in millimeters, between: Carotid-
Peripheral Artery, Carotid-Suprasternal Notch and Suprasternal Notch-Peripheral
Artery. In this way during the PWV assessment it’s possible to apply both methods
for the distance evaluation suggested by the international guidelines, i.e. the “direct”
method (direct distance multiplied by 0.8) and the “subtractive” one.
WPulsePen software manages the patient DataBase “WPPArch.dbd” located in the “WPulsePen_Data”
folder. Selecting the “Patient Archive” icon, all patients are shown with the related examinations and it’s
possible to choose which one to display on the screen.
WPulsePen_LP software saves single examinations in text format files (*.txt) in the subfolder “ASCII” of
the “WPulsePen_Data” folder.
The “Setup” icon allows to select language, date format, device programming, …, while the “Help” icon
opens a window with the software instructions (pls refer to this online Help for updated operating
instructions).
Activation of
wEc1
and
wTn1
units is shown on the computer screen (points 7, 8, 9, 11) of the software
menu image.
In order to switch off the Sensors
wEc1
and
wTn1
, keep pressed the on/off key until the acoustic signal
(about 1 sec). The
wEc1
and
wTn1
units automatically switch off when closing the program or when there
is no connection with the
wRs1
unit for more than 30 sec: e.g. when the software WPulsePen /
WPulsePen_LP is not executing or distance between them is too long.
The
wEc1
and
wTn1
units don’t transmit radio-frequency until a connection with the
wRs1
unit was
established.
!
6
User Manual
PulsePen
- V. 4.6
