If patient movement presents a problem:
e Verify that the sensor is properly and securely applied.
e Use a new sensor with fresh adhesive backing.
e Move the sensor to a less active site.
e Use a type of sensor that tolerates some patient motion, such as the OXISENSORTM
D-25, D-20, N-25, or 120 oxygen transducer.
NELLCORO SENSOR FAMILY
SELECTION
|D25/D25L —
[R-15
N-25
+20
D-20
RS-10
GUIDE
Adult
Adult
Neonatal
Infant
Pediatric
Adult
Patient
|>30kg
>50 kg
<3 kg
1-20 kg
10-50 kg
>40 kg
Size
>40 kg
Duration | Short or Long | Short or
Short or
Short or
Short or
Short Term
of Use
Term
Long Term
|Long Term
[Long Term
{Long Term
Sterility | Sterile!
Sterile?
Sterile!
Sterile?
Sterile!
Non-
sterile
Patient
| Limited
Inactive
Limited
Limited
Limited
Limited
Activity,
| Activity
Activity
Activity
Activity
Activity
OXISENSOR | OXISENSOR | OXISENSOR | OXISENSOR | OXISENSOR | RS-10
adult digit
[adult nasal | neonatal
infant digit | pediatric
reflectance
oxygen
oxygen
oxygen
oxygen
digit oxygen
|oxygen
transducer
|transducer
{transducer _| transducer
transducer __| transducer
"In an unopened, undamaged, package.
All NELLCOR™
accessories and sensors must be purchased form NELLCOR® Inc.,
25495 Whirehall Street, Hayward, Ca. 94545. To contact NELLCOR® „call
1-800-NELLCOR.
D. Automatic Calibration of NELLCOR® Sensors
The oximetry subsystem incorporates automatic calibration mechanisms. It is
automatically calibrated each time it is turned on, at periodic intervals thereafter, and
whenever a new sensor is connected. Also, the intensity of the sensor's LEDs is
adjusted automatically to compensate for differences in tissue thickness.
Each sensor is calibrated when manufactured; the effective mean wavelength of the red
LED is determined and encoded into a calibration resistor in the sensor plug. The
instrument's software reads this calibration resistor to determine the appropriate
calibration coefficients for the measurements obtained by that sensor.
Accutorr Plus Service Manual
Revised 02/15/00
Chapter 1, Operation
1-39
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