ZOLL M Series Defibrillator Rev R - Manual (Page 139)

M Series Service Manual
129
Isolated Power Supply Module
The Isolated Power Supply Module provides electrically isolated power to the EtCO
2
and SpO
2
modules. It also
provides the electrically isolated serial communications and isolated control signals between the EtCO
2
and SpO
2
modules and the main system PWBA.
12 Lead Option
The ZOLL M Series 12 lead option is used to acquire ECG data needed to assist in the diagnosis of myocardial
infarction (“heart attack”), often caused by a coronary artery occlusion. The 12 lead ECG can be viewed on the display
one lead at a time in monitoring and diagnostic bandwidths and printed in the standard 4x3 format with 12
simultaneously acquired leads.
The 12 lead option provides for the recording, printing and automated analysis of 12 lead ECG using GE Marquette
12SL
 Analysis and supports the transmission of these reports by fax to a remote location, such as a hospital. In the
pre-hospital environment, the 12 lead reports can be faxed to a physician as the patient is en route to the Emergency
Department. As a result, the physician can initiate hospital accommodations immediately, such as activating the staff
of the cardiac catheterization lab, prior to the patient’s arrival and subsequent treatment. Or the patient may be treated
in the pre-hospital environment with thrombolytic agents.
The 12 lead cable is required to produce 12 lead reports. M Series unit must have the 12 lead option installed. All limb
leads and at least one V-lead must be connected to initiate a 12 lead acquisition. Printed 12 Lead bandwidth is user
configurable to be either 0.05-150 Hz (per AAMI EC11) or 0.05-40 Hz. The 0.05-40 Hz bandwidth selection is used
to reduce noise artifact in the high end of the diagnostic frequency range. Reports can be printed in a standard 4x3 or
Cabrera format. Faxed reports can be configured in a 2x6 format in addition to 4x3 and Cabrera formats.
The GE Marquette 12SL
 Analysis algorithm provides measurements of the 12 lead waveforms along with
interpretive statements. The algorithm is interpretive, not “diagnostic.” (A physician should always confirm
interpretive statements. A diagnosis requires a complete clinical assessment including other modalities, such as a
physical examination.) 12SL
 produces global waveform measurements as well as a measurement matrix containing
measurements on each lead. Both the interpretive statements and measurement matrix are configurable to be printed
or not printed.