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Dive into the world of Waterproof Solutions by Ottobock

A prosthetic user waters his garden without worry thanks to their water resistant C-Leg
A prosthetic user waters his garden without worry thanks to their water resistant C-Leg
A prosthetic user waters his garden without worry thanks to their water resistant C-Leg

Say hello to new possibilities with Ottobock’s prosthetic and orthotic devices that are specifically engineered to withstand the challenges of water! With these solutions, you never have to miss out on your favorite aquatic activities.


When are waterproof components necessary?

Many individuals live, work, and play in environments that have water exposure. This may include a spring rain shower on the golf course or watching the kids play around the pool. However, recreational needs are just part of the functional picture.

The most important applications for waterproof components are at home or work. Cleaning the gutters at home, cleaning up a workshop, or handling a construction job are very practical examples of the need for a worry-free prosthesis.

A group of teenagers and a brace user lounge at a lake

How water resistance is measured

In manufacturing, ingress protection (IP) describes the degree to which a device’s electronics are protected against dust and water. The prosthetics industry uses the same designations to describe levels of waterproofness for microprocessor knees and feet.

C-Leg 4 and Genium have an IP 67 rating. These MPKs are safe to use in fresh water under the following conditions: submersion up to 1 meter for 30 minutes.

Genium X3 has an IP 68 rating. The X3 can be submerged in fresh water up to 3 meters for 30 minutes.

It’s important to remember that the IP rating only refers to protection for the product’s electronics. Microprocessor knees have IP ratings, but mechanical knees do not. A fully waterproof knee or foot must have the ability to resist corrosion when immersed in fresh water, chlorinated water, or salt water. That’s the reason Ottobock uses the terms water resistant and waterproof. Ottobock water resistant knees protect the electronics against limited submersion but require maintenance for the mechanical parts. Ottobock waterproof knees protect the electronics and the mechanical working parts.


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.