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Defibrillator Function
The E Series products contain a DC defibrillator capable
of delivering up to 200 joules of energy. It may be used in
synchronized mode to perform synchronized
cardioversion by using the R-wave of the patient's ECG
as a timing reference. The unit uses paddles or
disposable, pre-gelled, MFE Pads for defibrillation.
The E Series products must be prescribed for use by a
physician or medical advisor of an emergency response
team.
Intended Use — Manual Operation
Use of the E Series products in the Manual mode for
defibrillation is indicated on victims of cardiac arrest
where there is apparent lack of circulation as indicated
by these three conditions:
•
Unconsciousness
•
Absence of breathing, and
•
Absence of pulse.
This product should be used only by qualified medical
personnel for converting ventricular fibrillation and rapid
ventricular tachycardia to sinus rhythm or other cardiac
rhythms capable of producing hemodynamically
significant heart beats.
In Manual mode, the E Series unit may also be used for
synchronized cardioversion to terminate atrial fibrillation
(AF) or ventricular tachycardias (VT) by using the R-
wave of the patient's ECG as a timing reference. A
qualified physician must decide when synchronized
cardioversion is appropriate.
The Advisory function should be used to confirm
ventricular fibrillation and wide complex ventricular
tachycardia (greater than 150 beats per minute) in
patients meeting the three conditions indicating lack of
circulation (previously listed).
Intended Use — Semiautomatic Operation
(AED)
The E Series AED unit is designed for use by emergency
care personnel who have completed training and
certification requirements applicable to the use of a
defibrillator where the device operator controls delivery
of shocks to the patient.
They are specifically designed for use in early
defibrillation programs where the delivery of a
defibrillator shock during resuscitation involving CPR,
transportation, and definitive care are incorporated into a
medically-approved patient care protocol.
Use of the device in the Semiautomatic mode for
defibrillation is indicated on victims of cardiac arrest
where there is apparent lack of circulation.
Specifications for the ECG rhythm analysis function are
provided at the end of this section.
9650-1210-01 Rev. T
Intended Use — CPR Monitoring
The CPR monitoring function provides visual and audio
feedback designed to encourage rescuers to perform
chest compressions at the AHA/ERC recommended rate
of 100 compressions per minute. Voice and visual
prompts encourage a minimum compression depth of at
least 1.5 (3.8 cm) or 2.0 inches (5.0 cm), depending on
the configuration, for adult patients.
The CPR monitoring function is not intended for use on
patients under 8 years of age.
Contraindications for Semiautomatic Operation
Do not use the unit's AED function on patients under 8
years of age.
The rhythm analysis function may not reliably identify
ventricular fibrillation in the presence of an implanted
pacemaker. Inspection of the electrocardiogram and
clinical evidence of cardiopulmonary arrest should be the
basis for any treatment of patients with implanted
pacemakers.
Do not use the rhythm analysis function during patient
movement on a stretcher or in an ambulance or other
conveyance. A patient must be motionless during ECG
analysis. Do not touch the patient during analysis. Cease
all movement of the stretcher or vehicle prior to
analyzing the ECG. If you are using the device in an
emergency vehicle, bring the vehicle to a halt before
activating the analysis function.
Defibrillator Complications
Inappropriate defibrillation or cardioversion of a patient
(e.g., with no malignant arrhythmia) may precipitate
ventricular fibrillation, asystole, or other dangerous
arrhythmias.
Defibrillation without proper application of electrode pads
or paddle electrolyte gel may be ineffective and cause
burns, particularly when repeated shocks are necessary.
Erythema or hyperemia of the skin under the paddles or
MFE Pads often occurs; this effect is usually enhanced
along the perimeter of the paddle or electrode. This
reddening should diminish substantially within 72 hours.
Defibrillator Output Energy
The E Series products may deliver up to 200 joules into a
50 ohm impedance. The energy delivered through the
chest wall, however, is determined by the patients
transthoracic impedance. An adequate amount of
electrolyte gel must be applied to the paddles and a force
of 10-12 kilograms (22-26.4 lbs) must be applied to each
paddle in order to minimize this impedance. If MFE pads
are used, make sure that they are properly applied.
(Instructions for proper application are located in "MFE
Pad Application/Connection" on page 1-9).
General Information
1-7
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