Discharge Energy; Sync And Async Mode - Primedic DefiMonitor XD Series Operating Manual

9.1.3
9.2
21324 / 09.05 / 02 / GB
DefiMonitor XD
Before delivering the defibrillation remove all devices which are applied to the pa-
tient and are not protected against defibrillation impulses.
Before and during the discharge of energy, all persons participating in the resuscita-
tion measures must step back and all contact with the patient or conductible objects
(e.g. a stretcher) must be avoided!
The time required to prepare for defibrillation depends on the available capacity of
the battery / accumulator. The charging time can be a little more in case of a partly
discharged power module.
If there is an error during charging, there is a continuous warning tone and the
charged energy will be safety discharged internally.

Discharge Energy

Confirm the activation key or both paddle keys to confirm defibrillation, which occurs
after the button was pressed. Hold down the key until the discharge has occurred.
Avoid contact with the device sockets during defibrillation.
The contact surfaces of the paddle must have sufficient electrode gel in order to pre-
vent burns to the skin.
When the defibrillation is carried out, you must check the EKG again for rhythms
which are suitable for a shock and if necessary activate (a) further defibrillation(s) (or
more extensive resuscitation measures).
In case of the message "Charge accumulator", there is still five energy dis-
–
charges with maximum energy. The power module should be replaced if this
message appears.

SYNC and ASYNC Mode

If the emergency situation requires a synchronised operating mode of the defibrillator
(cardio version), this must be a conscious choice by selecting the SYNC key. To go to
SYNC mode, the defibrillator must first be switched to manual mode. You can then
activate SYNC mode by pressing the SYNC key. The synchronised operating mode is
shown on the EKG monitor with the notice "SYNC.
In order to guarantee more precise synchronization, synchronization via the defibrilla-
tion adhesive electrodes is recommended. As a result, the movement artefacts can be
essentially avoided. It is also possible to synchronise with the paddle. To do this, the
EKG must be derived via the paddle and you must ensure that the synchronisation is
not distorted by the movement artifacts.
After synchronised energy transmission (cardio version) the Defibrillation unit
switches back to asynchronous mode.
In the synchronised mode, the EKG marks are shown on the monitor screen. For a se-
cure synchronised mode, the cardio version markers in each QRS complex must ap-
pear directly with an R-peak. The prerequisite for this is a clean, artefact-free EKG
signal.
The Synchronisation can only be used for lead II.
The delay time is less than 60 ms between detection of a QRS complex (synchronised
pulse) and energy transmission.
Before releasing the cardioversion check on the monitor whether the cardioversion
markers are clearly related to the R-peaks and do not react e. g. to pacemaker pulses
or artefacts.
Operating Manual
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