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Transesophageal Transducers
TEE Accessories and Supplies
For procedures on using transducer covers (protective sheaths), see the instructions provided
with the covers.
Tip Protectors
When not using a carrying case to transport a TEE transducer, use a tip protector on its distal
tip. The tip protector helps prevent serious damage to the transducer lens. Philips supplies tip
protectors designed for each of its TEE transducers.
Disposable Drapes
During studies in which you believe contamination of the imaging system can occur, Philips
recommends that you take universal precautions and cover the system with a disposable drape.
Consult your hospital's rules regarding equipment use in the presence of infectious disease.
TEE Leakage Current Test
The electrical safety check described here should be performed regularly to determine if there
is a hole in a transducer's outer insulating layer. This procedure detects liquid pathways to the
interior parts of the transducer shaft and tip by measuring third-wire leakage current. This
procedure can be performed with any commercially available safety analyzer that is designed
for hospital use.
WARNING
Only a technically qualified person should perform the leakage-test procedure.
TEE Test Background
The test procedure (see figure) involves making an AC measurement of the ultrasound system
current without a transducer. The results are then compared with the current measured when
it is forced to flow through the insulating layer of the TEE transducer. If the two currents are
nearly the same, it means there is a hole in the transducer's outer insulating layer that must be
fixed before using the transducer.
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EPIQ 7 User Manual 4535 617 25341
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