damage to both their teeth and to the transducer. For information on bite guards
available from Philips, see "Bite Guards" on page 258.
Avoid the following when inserting any TEE transducer into a patient:
• Any excessive flexion of the transducer tip, particularly in the medial/lateral
direction
• Catching the tip in pharyngeal recesses
• Insertion when a patient is being uncooperative or is having a convulsion
or spasm
Reviewing Patient Esophageal Pathology
Carefully review a patient's medical history for obstructing pathologies or
anatomical irregularities before performing a TEE exam.
Ensuring Proper Transducer Maintenance
Thoroughly examine the transducer and test the controls before each exam. Be
sure to check for excessive flexibility in the tip. See "TEE Transducer Inspection"
on page 247.
TEE Temperature Sensing
The S7-2omni transducer contains built-in temperature sensors near the distal
tip of the transducer. The sensor monitors the transducer's temperature to
prevent potential burning of esophageal tissue.
The sensor is affected by patient core temperatures. The system assumes that
the patient temperature is normal, and calculates the distal tip temperature
accordingly. If the patient temperature is above 37°C (98.6°F), the Auto-Cool
feature can miscalculate the temperature of the distal tip. This can expose patients
to excessive temperatures or cause an unwarranted Auto-Cool condition in
which the system stops scanning.
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iU22 User Manual
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10
Transesophageal Transducers
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