Marquette Hellige GmbH
CardioServ V. 3
Page 6
The pacemaker is a transthoracic pacemaker operating in the Demand and Fix
mode (over 180 P/min overpace).
- The frequency is between 0...300 P/min
- The current is between 0...200 mA
- Adjustment is in 5-unit intervals.
The pacemaker is operated using 6 keys on the control panel. One key switches
the pacemaker on, one key changes the operating mode, the other keys are used
to adjust the frequency and current. The defibrillator cannot be disabled as long as
the pacemaker is switched on. The adhesive electrodes of the Defi are used to
release a pulse. This ensures a rapid switch from defibrillator to pacemaker and
back again.
SpO2 is based on one of the modules manufactured by Nellcor (MP204). This
module is connected to the PCB Pacemaker via the PCB Potential Separation and
controlled by the latter. Measurement of the oxygen saturation level and pulse
frequency is made by this PCB.
Pulse frequency from 0...250 P/min
Saturation from 0...100%
We display the plethysmogram, saturation level and, when selected, the pulse
frequency instead of the HR.
Control options :
A battery charge check is performed under load application during the charge
operation. The message "charge battery" on the display means the battery needs
recharging. At least five discharges at maximum energy are still possible.
Performance check of defibrillation is performed by discharging into the integrated
50-ohm resistor.
Monitoring battery charge via the connector for power cord by the yellow LED.
The monitoring function of the CardioServ records and monitors the ECG and
oxygen saturation level. The cardiac-action potentials are fed to the ECG
preamplifier via a 5-wire patient cable. Selection can be made from 12 leads. The
ECG curve is displayed on the LC screen with an illuminated background. The
heart rate obtained from the ECG signal is continuously displayed on the screen.
Communication between the user and the instrument is via the keyboard and the
LC screen. These also serve to configure the default settings and functions (see
User's Manual for further details).