TEE Transducers
HD11 XE Getting Started
4535 612 62651
10
228
Improper Transducer Maintenance
Thoroughly examine the transducer and test the controls before each exam. Be
sure to check for excessive flexibility in the tip. See “Checking the TEE Trans-
ducer” on page 218.
Recognizing Tip Fold-Over
The TEE transducer tip might be folded over in the patient if you encounter any of
the following:
• Resistance to advancing or removing the transducer
• An inability to turn the control knobs
• Fixation of the control knobs in the maximum flexion position
•Extreme difficulty in obtaining an image
Correcting Tip Fold-Over
If you suspect the transducer tip is folded over, Philips’s physician consultants rec-
ommend that you gently try to manipulate the transducer. If the tip is not locked
or jammed in a doubled-over position and you can move it forward, advance the
transducer into the stomach. Then straighten the tip and remove the transducer.
If you cannot move the tip in any direction, Philips’s consultants recommend that
you x-ray the patient to evaluate the situation. You might also want to involve a
gastroenterologist or anesthesiologist.
Ensuring Accurate Temperature Sensing
The OmniPlane and S7-3t TEE transducers contain a built-in temperature sensor
near the distal tip of the transducer. The sensor monitors the transducer’s temper-
ature to prevent potential burning of esophageal tissue.
The sensor is affected by patient core temperatures. The system assumes that the
patient temperature is normal, and calculates the distal tip temperature accord-
ingly. If the patient temperature is above 37°C (98.6°F), the Auto-Cool feature
can miscalculate the temperature of the distal tip. This can expose patients to
excessive temperatures or cause an unwarranted Auto-Cool condition in which
the system stops scanning.
To Next Page
Loading...