Masimo Rad-97 Operator's Manual

Rad-97 Chapter 1: Technology Overview
www.masimo.com 24 Masimo
Masimo SET® DST
This figure is for conceptual purposes only.
General Description for Oxygen Saturation (SpO2)
Pulse oximetry is governed by the following principles:
1. Oxyhemoglobin (oxygenated blood) and deoxyhemoglobin (non-oxygenated
blood) differ in their absorption of red and infrared light (spectrophotometry).
2. The amount of arterial blood in tissue changes with your pulse
(photoplethysmography). Therefore, the amount of light absorbed by the varying
quantities of arterial blood changes as well.
Successful Monitoring for SpO2, PR and Pi
Stability of the SpO
2
readings may be a good indicator of signal validity. Although stability is
a relative term, experience will provide a good feeling for changes that are artifactual or
physiological and the speed, timing, and behavior of each.
The stability of the readings over time is affected by the averaging mode being used. The
longer the averaging time, the more stable the readings tend to become. This is due to a
dampened response as the signal is averaged over a longer period of time than during shorter
averaging times. However, longer averaging times delay the response of the oximeter and
reduce the measured variations of SpO
2
and pulse rate.
Functional Oxygen Saturation (SpO2)
The Rad-97 is calibrated to measure and display functional oxygen saturation (SpO
2
): the
amount of oxyhemoglobin expressed as a percentage of the hemoglobin that is available to
transport oxygen.
Note: Dyshemoglobins are not capable of transporting oxygen, but are recognized as
oxygenated hemoglobins by conventional pulse oximetry.

Masimo Rad-97 Specifications

General

Display Size	7 inches
SpO2 Accuracy	±2% (70-100%)
Pulse Rate Accuracy	±3 bpm
Perfusion Index Range	0.02% to 20%
Pleth Variability Index Range	0% to 100%
SpO2 Range	0% to 100%
SpHb Range	0 to 25 g/dL
SpCO Range	0% to 40%
Battery Type	Rechargeable lithium-ion
Operating Temperature	5°C to 40°C (41°F to 104°F)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Humidity Range	10% to 95% non-condensing
Display	Color touchscreen
Connectivity	Wi-Fi, Ethernet, Bluetooth
Power Supply	100–240 VAC, 50–60 Hz
Battery Life	Approximately 4 hours
Measurements	SpO2, Pulse Rate, Perfusion Index, Pleth Variability Index, SpHb, SpOC, SpMet, SpCO
Pulse Rate Range	25 to 240 bpm
HbCO Range	0-99%
MetHb Range	0-99%
SpMet Range	0-99%
Data Storage	Internal memory
Alarms	Audible and visual alarms for all parameters