The LIFEPAK 12 defibrillator, monitor and pacer combines multi-parameter therapeutic and diagnostic functions in a compact and portable device. Its durable design makes it drop proof (up to 18 in.) and splash proof (IPX4 rating per IEC 60529). The large screen allows for easy reading of waveforms and monitoring data even from distance. Due to its small footprint it requires minimal space in the Emergency Department or Operating Room and eliminates the need for single-purpose monitoring equipment.
The following table shows the main advanced capabilities of the defibrillator/monitor.
Depending on the configuration, the Monitor can display, record, or print
3-Lead ECG or 12-lead ECG.
It provides advanced monitoring capabilities of the following vital parameters:
** Non-invasive Blood Pressure (NiBP)
** End-tidal carbon-dioxide (etCO2)
** Pulse-oximetry (SpO2)
** Invasive pressure (IP) monitor
** Vital sign (VS) and ST monitoring
The defibrillation unit provides an AED mode for BLS teams, and an advanced mode for ALS teams.
ADVISORY - Activates Continuous Patient Surveillance System (CPSS)
ANALYZE - Activates Shock Advisory System (SAS) and AED mode
Manual Defibrillation for ALS Teams
Biphasic waveform with energy up to 360 Joules
Synchronized cardioversion by detecting the patient's R-waves
Noninvasive Transcutaneous Pacing (NTP) for ALS teams
Optional, wireless Bluetooth communication. Fax transmission wired.
AED = Automated External Defibrillator, BLS = Basic Life Support, ALS = Advanced Life Support Monitor
The Monitor is the ideal portable monitoring device for critically ill patients. In addition to 3-lead or 12-lead ECG and pulse-oximetry (SpO2),
supports Physio Control Lifepak 12 EL Screenmonitoring of up to two channels of invasive pressures using a compatible transducer.
The most commonly used physiologic pressures are listed below:
** IP Label Description
** ART Arterial Pressure
** PA Pulmonary Artery Pressure
** CVP Central Venous Pressure
** ICP Intracranial Pressure
** LAP Left Atrial Pressure
Other monitoring features are non-invasive blood pressure (NiBP) and end-tidal CO2.
Depending on the type of batteries (NiCd 1.2 Ah/1.7Ah/2.4Ah, sealed lead acid with 2.5Ah, Lithium-ion with 7.2Ah), the
operating time varies between 1.5 and 6 hours (Li-Ion).
ECG ST median (STM):
The Monitor uses Vital Sign (VS) and ST Monitoring technology to store, every 30 sec for up to 8 hours, all active vital signs
and measurements of the ST segment. VS and ST Monitoring is initiated with 12-lead ECG. The inbuilt GE Medical Systems
12SL ECG analysis program provides the ST median (STM) measurement.
The 12-lead version of the LIFEPAK 12 uses the 12SL™ ECG analysis program of GE Medical Systems. By pressing the 12-
LEAD button a 10 sec ECG is stored in memory and analyzed by the 12SL algorithm. Data acquisition can be configured to
PRE mode (10 sec of ECG data before pressing 12-LEAD) or POST mode (10 sec of ECG data after pressing 12-LEAD). The
12SL algorithm selects three representative beats for each lead and averages the three beats to derive the median beat for that
lead. ST segment analysis provides interpretation statements pertaining to myocardial injury, infarct, and ischemia.
The LifePak 12 is fitted with a 50 mm (2.0 in.) or optional 100 mm (3.9 in.) printer. The standard print speed is 25mm/sec or
optional 50 mm/sec. The 12-lead ECG report can be printed in the standard 3-channel format or 4-channel format comprising
the median beat derived from each of the 12 leads, and 10 sec ECG of Lead II.
The LIFEPAK 12 uses a biphasic waveform for defibrillation. Research has shown that it has greater shock efficacy in patients with ventricular fibrillation (Review by Nichol et al., JACC, Dec. 2017).
Depending on the operating team (BLS or ALS team) the Defibrillator can be run in different modes:
Physio Control Lifepak 12 Keypad Front Panel:
The clear and instructive front panel provides all important buttons in one place.
The ADVISORY button activates the Continuous Patient Surveillance System (CPSS) which automatically evaluates the patient ECG for a potentially shockable rhythm, i.e. ventricular tachycardia (VT) or ventricular fibrillation (VF). If a shockable rhythm is detected, the PUSH ANALYZE prompt occurs.
The ANALYZE button activates the Shock Advisory System (SAS) and AED mode.
The AED mode guides the BLS user through the process of the defibrillation. The default settings are consistent with 2005
American Heart Association (AHA) and European Resuscitation Council (ERC) guidelines. Prior to following the commands,
the BLS user must verify that the patient is in cardiac arrest (unconscious, no respiration, no pulse).
The manual of the Defibrillator emphasizes that the electrodes must be placed in the anterior-lateral (Lead II) position. The
shock advisory algorithm does not reliably work with electrodes in the anterior-posterior position.
In case of an in-hospital cardiac arrest, skilled personnel trained in ACLS must exclude contraindications as follows:
Dysrhythmias due to enhanced automaticity (digitalis toxicity, catecholamine-induced arrhythmia)
Multifocal atrial tachycardia
In these conditions cardioversion is associated with a higher incidence of post-shock VT and VF. (AHA Guideline 2015 Update for CPR and ECC)
The Defibrillator is also capable of synchronized defibrillation (SYNC ON) by discharging the shock with the next detected R wave.
This helps to avoid the vulnerable T-wave segment of the cardiac cycle. Indications for electrical cardioversion include
supraventricular tachycardia (SVT), atrial fibrillation or flutter, and VT with pulse.
Non-invasive Transcutaneous Pacing (NTP) In case of severe bradycardia, the LIFEPAK 12 can deliver two types of pacing:
Non-demand (asynchronous) pacing
The QUIK-COMBO electrodes are attached to the thorax in an anterior-lateral (apical) or anterior (pre-cordial) and posterior
position. The external pacer allows for continuous adjustment of the output current between 0 and 200 mA. The pacing rate can
be set between 40 and 170 pulses per minute (ppm).
Data Management and Transmission of Data:
Typically, the data memory of the LIFEPAK 12 can store up to 100 single waveform reports and 45 minutes of continuous ECG.
Patient reports are stored as one of the following report types:
CODE SUMMARY™ Critical Event Record
12-Lead ECG Report
Continuous ECG Report (real-time single lead ECG data)
Vital Signs Summary
Snapshot Report (8 sec of waveform data)
Trend Summary (vital sign log and vital sign graphs)
Reports can be sent via cable or wireless Bluetooth connection to
Fax - A Group III, Class 2 or 2.0 fax host or LIFENET RS receiving station and CODE-STAT Suite data management system