A cochlear implant is a sophisticated electronic device that can provide a sense of sound to individuals with severe to profound hearing loss. It works differently from hearing aids, which simply amplify sound; instead, a cochlear implant directly stimulates the auditory nerve. Managing water exposure, particularly when it comes to swimming or other aquatic activities, is a frequent concern.
Understanding Cochlear Implant Water Resistance
The cochlear implant system has two main components: an internal implant, which is surgically placed under the skin, and an external sound processor, worn outside the ear. The internal implant is designed to be waterproof once the surgical site has healed, allowing it to remain safely in place during water activities. However, the external sound processor is generally not inherently waterproof and requires special considerations for water exposure.
Manufacturers categorize water protection levels for external processors: splash-proof, water-resistant, or fully waterproof. A splash-proof device can withstand light moisture, such as rain or sweat. Water-resistant devices offer higher protection against splashes but are not intended for submersion. Fully waterproof processors or accessories allow complete immersion, often specified to certain depths and durations.
Methods for Swimming with an Implant
The simplest approach involves removing the external sound processor before entering the water. This ensures the device remains dry and protected from water damage, though it means the individual will not have access to sound while swimming. After removal, the processor should be stored in a safe, dry place.
Alternatively, users can utilize manufacturer-approved waterproof accessories or specialized waterproof processors. Some modern sound processors are designed with an IP68 rating, meaning they are waterproof for immersion in fresh water up to 1 meter for 60 minutes, enabling short swimming sessions without additional accessories.
For prolonged water activities, or in saltwater or chlorinated water, specialized waterproof covers or sleeves are available. These accessories, such as the Aqua+ system, encase the external sound processor in a watertight seal, allowing it to be submerged, sometimes up to 3 meters deep for two hours. These solutions are specific to certain implant models and require the use of rechargeable batteries, as zinc-air batteries will stop working in water.
Essential Care and Precautions
Maintaining the cochlear implant system after water exposure is important for its longevity and performance. Before water activities, users should confirm that any waterproof accessories are properly sealed and undamaged. A secure fit, perhaps with a swim cap or headband, can also help keep the external processor and its accessories in place during movement.
After swimming, thoroughly dry the external processor and any waterproof accessories. This helps prevent potential damage from residual moisture. Cleaning routines should include rinsing the device and accessories with fresh water, especially after exposure to chlorinated pool water or saltwater, to prevent corrosive buildup. Placing the external processor in a drying unit overnight is also recommended to remove any remaining humidity. Consulting the specific cochlear implant manufacturer’s instructions and an audiologist for advice on care and use in water is recommended.