Philips M4735A HeartStart XL offers
advanced and basic life-support clinicians a compact,
lightweight, easy-to-use defibrillator/monitor with both
Manual and AED capabilities. HeartStart XL features
Philips’ patented SMART Biphasic waveform, ECG
monitoring, synchronized cardioversion, and optional noninvasive
pacing and SpO2.
A biphasic waveform is energy delivered in two phases.
During the first phase, the electrical current passes
through the heart muscle, reverses direction, and then
passes through the heart a second time. This efficient
transmission of energy requires less current than that
delivered by a monophasic waveform.
Manual Mode operation is as easy as 1-2-3:
1 - Select an energy level from 2 to 200 Joules.
2 - Charge the unit.
3 - Deliver the shock.
The HeartStart XL charges to its highest energy level in
less than 3 seconds. ALS providers can also perform
synchronized cardioversion and deliver non-invasive pacing
The HeartStart XL records a patient summary in either
mode of operation. Patient data such as continuous ECG,
shocks and alarm violations are stored in the unit's internal
memory. Downloading and reporting data is available by
using a data card. The Event Review Pro data management
system allows authorized users to edit, store, and print
The HeartStart XL is designed to meet a wide variety of
resuscitation and monitoring needs in one lightweight,
easy-to-use device both in terms of in hospital and emergency requirements.