- Not all disinfectants are effective against all types of contamination. Ensure that the disinfectant type is appropriate for the type of transducer and that the solution strength and time of contact are appropriate for the intended clinical use.
- Disinfectants listed in this section are recommended because of their chemical compatibility with product materials, not their biological effectiveness. For the biological effectiveness of a disinfectant, see the guidelines and recommendations of the disinfectant manufacturer, the Association for Professionals in Infection Control, the U.S. Food and Drug Administration, and the U.S. Centers for Disease Control.
- If a pre-mixed solution is used, be sure to observe the solution expiration date.
- Always use protective eyewear and gloves when cleaning and disinfecting any equipment.
- The level of disinfection required for a device is dictated by the type of tissue it will contact during use. Ensure that the disinfectant type is appropriate for the type of transducer and the transducer application. For information on the levels of disinfection requirements, see Choosing the Correct Transducer Care Method. For more information, see the disinfectant label instructions and the recommendations of the Association for Professionals in Infection Control, the U.S. Food and Drug Administration, and the U.S. Centers for Disease Control.
- Using a non-recommended disinfection solution, using incorrect solution strength, or immersing a transducer deeper or longer than recommended can damage the device and voids the warranty.
- The use of 70% isopropyl alcohol (rubbing alcohol) and alcohol-based products on all transducers is restricted. On non-TEE transducers, the only parts that may be cleaned with isopropyl alcohol are the connector housing and the transducer housing and lens. On TEE transducers, the only parts that may be cleaned with isopropyl alcohol are the connector housing and the handle. Ensure that the solution is only 70% alcohol or less. Do not wipe any other part of a transducer with isopropyl alcohol (including cables or strain reliefs), as it can damage those parts of the transducer. This damage is not covered by the warranty or your service contract.
Factors Affecting Disinfectant Efficiency
The following factors will affect the efficiency of a disinfectant solution:
- Number and location of microorganisms
- Innate resistance of microorganisms
- Concentration and potency of disinfectants
- Physical and chemical factors
- Organic and inorganic matter
- Duration of exposure