TEE Transducers
HD11 XE Getting Started
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Tr a n s d u c e r C o v e r s
Philips recommends the use of a market-approved protective transducer cover
during every TEE exam.
WARNING
Transducer covers often contain natural rubber latex, which may cause allergic
reactions. For more information, see “Latex Materials and Patient Contact” on
page 52 and “FDA Medical Alert” on page 52.
For procedures on using transducer covers (protective sheaths), see the instruc-
tions provided with the covers.
Disposable Drape
For information on using a disposable drape, see “Disposable Drape” on page 59.
Electrical Safety Check Procedure for TEE Transducers
This section provides instructions for performing an electrical safety check proce-
dure on TEE transducers. Regularly perform the safety check described here 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. You can perform this procedure with any
commercially available safety analyzer that is designed for hospital use.
A technically qualified person should perform this procedure.
Tes t Ba ck gr ou nd
The test procedure (Figure 10-12) 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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