A cochlear implant is an electronic device designed to provide sound perception for individuals with severe to profound hearing loss who do not benefit significantly from hearing aids. Properly applying this device is important for daily use, ensuring consistent access to sound and comfort. This guide offers practical instructions for users and caregivers on the correct application of a cochlear implant, helping to integrate it smoothly into everyday life.
Key Components
A cochlear implant system includes both internal and external parts, with the external components being those a user interacts with daily. It is the external sound processor that captures sounds from the environment, often worn behind the ear like a hearing aid. This processor connects to a transmitting coil via a thin cable, which sends processed sound signals. The coil, typically held in place by a magnet, sits on the scalp directly over the surgically implanted internal receiver.
The external sound processor houses a microphone, the digital signal processor, and a battery to power the system. The cable, connecting the sound processor to the coil, transmits these signals effectively. The coil then sends the signals across the skin to the internal implant, which stimulates the auditory nerve.
Step-by-Step Application
Properly applying a cochlear implant begins with preparing the device for use. First, confirm that the batteries are adequately charged; for rechargeable batteries, ensure they were charged overnight, and for disposable ones, it is important to check them with a battery tester if unsure. Next, inspect the cable connecting the sound processor to the coil for any visible damage or kinks, as a faulty cable can disrupt functionality.
Carefully place the sound processor behind the ear, similar to how one would wear a traditional hearing aid. The sound processor should rest comfortably and securely over the ear. Position the transmitting coil on the head, aligning its magnet with the internal implant. The magnetic attraction will typically hold the coil firmly against the scalp.
Ensure the cable connecting the processor and coil is not twisted or pulling on the ear. Some users find it helpful to part their hair where the magnet sits to achieve a better connection. The device should feel stable and not loose, indicating a secure attachment.
Checking for Proper Fit
After placing the cochlear implant, verifying its proper fit is important for both comfort and performance. Check that the sound processor is seated securely behind the ear and does not feel as though it might slip off. The transmitting coil should be firmly attached to the scalp, held in place by the internal magnet, without causing undue pressure or discomfort. Observe the cable to ensure it hangs naturally without tension or twisting. This is important because tension or twisting could pull on the processor or coil.
A well-fitted device allows for comfortable movement and consistent sound perception. Signs of a less-than-optimal fit might include the processor slipping, the coil detaching easily, or localized pain and irritation around the ear or magnet site. If discomfort or instability persists, adjusting the placement slightly or consulting with an audiologist may be beneficial.
Routine Care for Your Device
Consistent routine care of your cochlear implant’s external components helps maintain its functionality and ease of daily application. Each day, gently wipe down the surfaces of the sound processor and the coil with a soft, dry cloth to remove any sweat, dirt, or oils. Avoid using paper towels or cotton swabs, as they can leave behind fibers. Inspect the connecting cable regularly for any signs of wear, fraying, or damage, as a compromised cable can affect sound transmission.
When the device is not in use, especially overnight, store the external components in a drying kit or dehumidifying container. This practice removes moisture and helps prevent potential damage from humidity, preserving the device’s longevity. Proper storage and cleaning ensure the implant is ready for reliable application each time it is worn.