Philips iE33 - TEE Deflection Control Basics

that a strand from the ground shield has broken and is beginning to puncture
the outer layer. If you suspect a problem with the flexible shaft, perform
the electrical safety check procedure. See "TEE Leakage Current Test" on
page 294.
• Use electrosurgical units (ESUs) that have isolated outputs. Return
fault/ground fault detection circuits provide additional protection. To
determine if an ESU has an isolated output, read the label on the ESU, see
the ESU service guide, or ask a biomedical engineer.
• Require periodic electrical safety checks to ensure that the grounding system
in your area remains intact.
• If the transducer is left in a patient during periods when imaging is not taking
place, unplug the transducer from the system to reduce the possibility of
leakage current or ESU interaction. Also make sure that the deflection
control brakes are off and that the transducer is in freewheeling mode.
• Always remove the transducer from the patient before defibrillation.
TEE Deection Control Basics
The deflection controls on the TEE transducer move the deflection area, located
between the distal tip and flexible shaft. The deflection area bends when you
operate the controls, permitting anterior, posterior, and lateral positioning.
Deflection Control Movement
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iE33 User Manual
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Transesophageal Transducers