Patient Selection for the S7-3t TEE Transducer
Although the S7-3t TEE transducer can provide clinical data not available from
other instruments, you should consider which patients can safely use the
transducer.
NOTE
Philips recommends that you use the S7-3t transducer only on patients weighing
at least 3.5 kg (7.7 lb).
WARNINGS
• The ability of a patient to swallow or accommodate the transducer should
be considered.
• You must consider any history of gastroesophageal diseases as well as the
possible effects of other therapies that the patient is undergoing. You must
also consider all gastroesophageal abnormalities or difficulty swallowing.
S7-3t TEE Controls
The transducer handle is designed for one-hand operation. Normally, you should
operate the transducer handle with your left hand. The thumb, first, and second
fingers control the deflection and the array rotation control wheels.
The smaller wheel on the transducer handle is for controlling the transducer tip
deflection. This wheel has a locked mode and a freewheeling mode. In the locked
mode, the movement of the deflection wheel is restrained to allow you to hold
the tip in a certain position. A metallic ring around the body of the handle, which
clicks on and off, controls the lock.
The larger wheel on top is for rotating the imaging array. The array can be
rotated continuously from 0 degrees (transversal plane) through 90 degrees
(longitudinal plane) to 180 degrees (transversal plane, left/right inverted).
WARNINGS
• Verify that the maximum deflection of the tip is 120 degrees up and 90
degrees down. If the up/down deflection shows an unwanted amount of
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Transesophageal Transducers
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