17-10 250cx Series Maternal/Fetal Monitor Revision C
2036946-001
Technical Specifications: Operating Modes
Maternal Pulse Oximetry Mode (Nellcor)
Technique:
Sensor Type and Accuracy
1
:
OxiMax
®
Sensor Models
MAX-A
2
,
DS-100A
Saturation Range:
Pulse Rate Range:
Accuracy:
Saturation (SpO
2
%)
Adults
2
Low Perfusion
3
Pulse Rate (bpm)
Adults
Wavelengths:
Red
Infrared
Maximum Optical Output Power:
Response Time:
Alarms (audible and visual):
Audio
Visual
Limits
Technical
Spectrophotometry and plethysmography.
SpO
2 Range:
70%–100%:
± 2 digits
± 3 digits
1–100%
30–250 bpm
70%-100% ± 2 digits
70%-100% ± 2 digits
0%-69% unspecified
20 to 250 bpm ± 3 digits
660 nm, nominal
890 nm, nominal
< 15 mW
Fast
Alternating 1.5-second chimes
Flashing SpO
2
numeric or message
User-selectable high and low SpO
2
; User-selectable high and
low pulse rate
Sensor errors, connection errors, insufficient signal, communication
problem, internal calibration error, or self-test failure.
1
Accuracy specifications are based on controlled hypoxia studies with healthy, non-smoking adult volunteers over the specified saturation SpO
2
range. Pulse oximeter
SpO
2
readings were compared to SaO
2
values of drawn blood samples measured by hemoximetry. All accuracies are expressed as ± “X” digits. This variation equals ±
one standard deviation (± 1 SD), which encompasses 68%of the population.Oxygen saturation accuracy can be affected by certain environmental and patient physiological
conditions, as discussed in the operator’s manual for the monitor. Use Nellcor sensors only with 250cx Series Monitors containing Nellcor oximetry. Consult individual
manufacturers for accuracy specifications and compatibility information of particular instruments and Nellcor sensor models. The volunteer population was composed of
healthy men and women recruited from the local population. The ages ranged from 18 to 50 years old, with variations of skin pigmentations.
2
Adult specifications are shown for OxiMax
®
MAX-A and MAX-N sensors with the N-600. Saturation accuracy will vary by sensor type.
3
Applicability: OxiMax
®
MAX-A, MAX-AL, MAX-P, MAX-I, and MAX-N sensors.
4
Information of wavelength range can be especially useful to clinicians performing photodynamic therapy.
NOTE: Because pulse oximeter equipment measurements are statistically distributed, only about two-thirds of pulse oximeter equipment measurements can be
expected to fall within ±
A
rms
of the value measured by a CO-Oximeter.
NOTE: Use of a functional SpO
2
simulator to assess the accuracy of the Corometrics 250cx SpO
2
parameter has not been demonstrated.
This device is covered under one or more of the following Patents: US Patent No. 4,802,486; 4,869,254; 4,928,692; 4,934,372; 4,960,126; 5,078,136; 5,485,847; 5,743,263;
5,865,736; 6,035,223; 6,298,252; 6,463,310; 6,591,123; 6,675,031; 6,708,049; 6,801,797; Re. 35,122; and foreign equivalents.
Maternal Vital Signs History
Storage/Recall: 8 hours, maximum
Operating Mode Specifications (Continued)
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