position of least potential pressure. Be sure that the transducer is in a
freewheeling mode and unplugged whenever you are not imaging.
• Prevent potential esophageal damage. Philips recommends that you stop
TEE scanning and unplug the transducer from the system during periods of
poor perfusion, circulatory arrest, or the hypothermic phase of open heart
surgery. To discontinue scanning, unlock the transducer connector.
• Before each TEE study, carefully inspect the transducer, as described in
"TEE Transducer Inspection" on page 247. A thorough inspection procedure
is required for the safety of the patient and yourself, and to ensure the
continued correct functioning of the transducer.
• Never use excessive force when inserting, operating, or withdrawing a
transducer, and make sure the deflection area is straight during insertion
and withdrawal. Forceful insertion, manipulation, or withdrawal of a
transducer can result in lacerations, bleeding, perforation, tearing of
adhesions, and ligament damage. Also be aware that the tip can fold over,
causing similar damage.
• Refrain from handling the distal tip whenever possible. If you must handle
the distal tip, grasp it on the sides. Do not touch the top or bottom. Support
the transducer’s proximal head, either by having an assistant hold the
steering mechanism or by clamping the transducer at the steering
mechanism. Ensure that the clamp does not interfere with steering, and do
not clamp any part of the flexible shaft, as this will damage the transducer.
Tip Fold-Over
On rare occasions, the tip of a TEE transducer has folded over during insertion.
The effects can be serious if the situation is handled incorrectly. The esophagus
can be scraped, perforated, or otherwise damaged.
For more information on tip fold-over, see "Tip Fold-Over" in the Help.
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Transesophageal Transducers
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