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IP Ratings for Leg Prostheses
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It’s important to remember that the IP rating only refers to protection for the product’s electronics. Microprocessor knees have both electronic and mechanical parts. Therefore, a fully waterproof knee must also be corrosion resistant to ensure that both the electronic and mechanical parts are protected.
That’s the reason Ottobock uses the terms water resistant and waterproof. Ottobock water resistant knees protect the electronics against limited submersion in fresh water. Ottobock waterproof knees protect both the electronics and the mechanical parts from full submersion in fresh, salt and chlorinated water.
Maintenance
Each individual user is responsible for maintaining their prosthesis. Even waterproof knees benefit from regular care. When prosthetic components are exposed to corrosive elements such as chlorinated water or salt water, the components should be thoroughly rinsed with fresh water, drained of excess moisture, and then dried with a lint-free towel.
It is often helpful to pair a waterproof knee with a foot that can drain water through the pyramid or the foot shell. This makes maintenance easier for the user.
For more details, please refer to the products' respective Instructions for Use.