ZOLL E Series Monitor Defibrillator Rev D - Manual (Page 109)

E Series Service Manual
9650-1450-01 Rev. D 4-13
by the blood flowing through a suitable peripheral area of the body, such as the finger in adults and the foot in neonates, can be used to calculate the ratio
of oxygenated hemoglobin to total hemoglobin in the arterial blood. The monitor displays this ratio as percent SpO
2
. Normal values typically range from
95% to 100% at sea level.
The E Series uses a Masimo

Pulse Oximetry Circuit Board which features a fundamentally distinct method of acquiring, processing and reporting arterial
oxygen saturation and pulse rate. The E Series’ SpO
2
module (Masimo

Circuit Board) connects to the Masimo sensors and reports monitoring results
(oxygen saturation, pulse rate, pulse waveform, etc.) via a serial digital interface to the E Series system board. The E Series system provides isolated DC
power and serial communication to the SpO
2
Board via the Isolated Power Supply board.
End Tidal Carbon Dioxide (EtCO
2
)
The ZOLL E Series EtCO
2
option continually and noninvasively monitors the patient’s carbon dioxide in respiratory gases and from these measurements
computes End Tidal CO
2
and respiration rate. The unit can display and print a recording of EtCO
2
readings, respiration rates, and capnograph waveforms.
In addition, the unit can configure an alarm to sound when the unit detects EtCO
2
values and respiration rates that are above or below acceptable ranges as
set by the user. This option is intended for use in all critical monitoring environments including ventilator support, patient transport, and anesthesia and is
intended for monitoring all patient types, including adult, pediatric, and neonatal.
E Series units equipped with software revision 2.00.000 or higher support two End Tidal Carbon Dioxide (EtCO
2
) monitoring options for the continuous
measurement of respiratory carbon dioxide (CO
2
) and respiration rate. These options use the same connector on the E Series unit and may be used
interchangeably.
The first option uses a unique, mainstream, solid-state, infrared sensor called the CAPNOSTAT ® 5 Mainstream CO
2
Sensor. The CAPNOSTAT 5 CO
2
sensor is attached to an airway adapter that connects to an endotracheal (ET) tube or other airway and measures gases flowing through these breathing
circuit components. A disposable mouthpiece may be connected to the adapter for monitoring non-intubated patients. A CAPNO
2
mask™ is also available
for use with non-intubated patients. This option provides for O
2
delivery while monitoring expired CO
2
.
The second option is a sidestream sampling system called the LoFlo™ CO
2
Module. The LoFlo module contains a gas sampling pump, which draws small
samples of gas from the patient’s airway via a nasal/oral cannula or airway adapter, and passes these gases through a solid state infrared sensor (located
away from the patient’s airway) that measures CO
2
. While the sidestream system is typically used on non-intubated patients, it can also be used for EtCO
2
measurement on intubated infant, pediatric and adult patients. The sidestream system should not be used, however, on patients who cannot tolerate the
50ml/min removal of the sample gases from their breathing circuit. The sidestream module uses specially designed cannulas and airway adapters for
sampling airway gases and passing them through an integrated sample cell, which connects to the LoFlo module’s CO
2
sensor. These cannulas incorporate
a filter and sample cell, providing maximum filtration of fluids and contaminants, and protecting the system from aspiration of these fluids.
In both systems, the CO
2
sensor generates infrared light and beams it through the airway adapter or sample cell to a detector on the opposite side. CO
2
from
the patient, flowing through the mainstream airway adapter or sample cell, absorbs some of this infrared energy. The E Series unit determines CO
2
concentration in the breathing gases by measuring the amount of light absorbed by gases flowing through the airway or sample cell.