manufacturer’s instructions. Residual OPA on TEE transducers may cause
temporary staining of the mouth and lip area and irritation or chemical
burns of the mouth, throat, esophagus, and stomach.
• To minimize the effects from residual OPA, or any other disinfectant, Philips
recommends the following:
• Follow the disinfectant manufacturer’s instructions very carefully. For
example, the manufacturer of Cidex OPA recommends soaking
transducers three times in fresh water.
• Use a protective transducer cover during endocavity and TEE studies.
• Use a sterile protective transducer cover with sterile ultrasound
transmission gel during intraoperative and biopsy studies.
• Limit the time that transducers are soaked in the disinfectant solution
to the minimum time recommended by the disinfectant manufacturer
(for example, the manufacturer of Cidex OPA recommends a minimum
of 12 minutes).
Disinfection by immersion is the accepted method of infection control for
transesophageal transducers. Philips recommends that a protective transducer
cover be used during studies.
Upon receiving your new transducer, disinfect it before performing the first
study. Clean and disinfect the transducer immediately after each use to protect
patients and personnel from a variety of pathogens. Establish and clearly post a
cleaning procedure that includes the following steps.
Before performing this procedure, read "Disinfection of Transducers by
Immersion (High-Level Disinfection)" on page 293.
1. Disconnect the transducer from the system.
2. Use the following procedure to remove all organic matter and other residue:
• Use a pre-cleaner or detergent to assist in removing protein residuals.
Enzymatic cleaners should have a pH of 6.0 to 8.0. Those cleaners are
further diluted during use. Follow the manufacturer’s instructions for
dilution.
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Transducer Care
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