Mindray Passport 12 Operator's Manual

11-6 Passport 12/Passport 8 Operator’s Manual
11.6 Measurement Limitations
If you doubt the SpO
2
measurement, check the patient’s vital signs first. Then check the monitor and SpO
2
sensor. The
following factors may influence the accuracy of measurement:
 Ambient light
 Physical movement (patient and imposed motion)
 Diagnostic testing
 Low perfusion
 Electromagnetic interference, such as MRI environment
 Electrosurgical units
 Dysfunctional haemoglobin, such as carboxyhemoglobin (COHb)and methemoglobin (MetHb)
 Presence of certain dyes, such as methylene and indigo carmine
 Inappropriate positioning of the SpO
2
sensor, or use of incorrect SpO
2
sensor.
 Drop of arterial blood flow to immeaurable level caused by shock, anemia, low temperature or vasoconstrictor.
11.7 Masimo Information
 Masimo Patents
This device is covered under one or more the following U.S.A. patents: 5,758,644, 6,011,986, 6,699,194, 7,215,986,
7,254,433, 7,530,955 and other applicable patents listed at: www.masimo.com/patents.htm.
 No Implied License
Possession or purchase of this device does not convey any express or implied license to use the device with
unauthorized sensors or cables which would, alone, or in combination with this device, fall within the scope of one or
more of the patents relating to this device.

Mindray Passport 12 Specifications

General

Brand	Mindray
Model	Passport 12
Category	Medical Equipment
Language	English