Specifications
86
Accuracy and Motion Tolerance
1, 2
Saturation
Without Motion—Adults: 70 to 100% ±2 digits
Without Motion—Neonate
3
: 70 to 100% ±3 digits
With Motion—Adults and Neonates
3
: 70 to 100% ±3 digits
Low Perfusion
4,5
: 70 to 100% ±2 digits
Pulse Rate
Without Motion
5
20 to 250 bpm ±3 digits
With Motion normal physiologic range
(55 – 125 bpm) ±5 digits
Low Perfusion
4,5
20 to 250 bpm ±3 digits
1
Applicability: D-25, D-25L, and N-25 sensors.
2
Definition of Nellcor Standard Motion:
Tapping: 1-2 cm amplitude at an aperiodic* frequency between 1-4 Hz
Rubbing: 1-2 cm amplitude at an aperiodic* frequency between 1-4 Hz
(*Note: “aperiodic” is a randomly changing frequency)
3
Adult specification is shown for D-25 and N-25 sensors with the N-200. Neonate specification
shown for N-25 sensors with the N-200. Validation testing of D-25 and N-25 sensors was
conducted on adult volunteers. Saturation accuracy will vary by sensor type. Refer to the Sensor
Accuracy Grid.
4
Definition of Low Perfusion:
Low perfusion in the context of oximetry is generally used to mean that the detected signal
modulation (pulsatility) is low at the monitoring site. Low percent modulation is defined as a value
of 1.5% modulation or less for the infrared (IR) signal.
5
1
Specification applies to monitor performance and was validated with Biotek and Nellcor
simulators.
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