Measuring Temperature Temperature (Temp)
13 - 8 V Series Operating Instructions
WARNING: During procedures employing electro-cautery, use currently
acceptable procedures to minimize conditions of the thermistor and
lead wires functioning as an alternate path for radio-frequency current
to return to ground, causing localized tissue burns. Procedures which
may minimize risk of electro-surgical burns are: keep both active and
ground electrodes of the electro-cautery system in close proximity so
that the temperature sensor is outside the radio-frequency current
field. Keep temperature monitor with its associated cables separated
from electro-cautery systems. Unusual, fast artificial variations in
temperature readings may occur with concomitant applications of the
electro-cautery system.
WARNING: Temperature probes are sterile unless unit container is opened or
damaged.
CAUTION: Temperature probes are for single use only. Reuse may cause a risk of
contamination and affect the measurement accuracy. Destroy after
single use. Do not re-sterilize.
13.4.2 Esophageal Stethoscope with 400 Series Thermistor
Temperature Sensor
Description (P/Ns 0206-03-0112-02, 0206-03-0118-02)
The esophageal stethoscope with temperature sensor is a disposable device which provides for
accurate measurement of core body temperature as well as transmission of heart and lung sounds.
Heart and lung sounds are transmitted across a thin cuff wall, through the side and distal openings of
the tube. Made of a special material which optimizes sound transmission and remains both durable
and flexible, the cuff maintains its integrity and prevents secretion from entering the tube. For
connection to any standard ear piece, a male luer adaptor is attached to the proximal end of the
esophageal stethoscope. The stethoscope is 19 inches (48.3cm) long. The tube, the cuff and luer
adaptor are made of lightweight, non-toxic, implant tested material.
The temperature transducer is in the form of an electrically insulated “400” series thermistor, which is
permanently secured within the lumen of the esophageal stethoscope. The thermistor is placed at
the distal end of the tube. The accuracy of the thermistor is ±0.2°C in the range of 5 - 45°C.
The assembly is disposable, single use only, and packaged sterile. It is available in sizes 12 and 18
French.
This device is intended for use with electronic temperature monitors accepting 400 series thermistor
sensors or equivalent that are equipped with alarms. To interconnect the probe with the instrument,
use cable part number 040-000091-00.
Electrical leakage current of the device (sensor and esophageal stethoscope) when used with
monitor and cable, comply with IEC 601-1/EN 60601-1.
Indications
The esophageal stethoscope with temperature sensor is indicated where patient temperature
monitoring is desired along with accurate heart and lung sound monitoring. The sensor is designed
for insertion into the esophagus.
Contraindications
The use of the esophageal stethoscope may be contraindicated in neonates and small infants
undergoing tracheostomy or internal jugular artery catheterization or laser surgical procedures.
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