Streifeneder Unternehmensgruppe

Waterproof components for prostheses: Knee joint, socket to foot

High-quality care of the lower extremities: waterproof prostheses

Basics of supplying waterproof components

Wet areas are a special challenge for people with amputations, whether they are outdoors, on the beach, at a bathing lake or indoors, such as in the shower or pool.

Water-resistant structural parts can be used to fit corrosion-resistant bathing prostheses. Not only must the artificial limbs meet the special technical requirements of being (corrosion) resistant to chlorine, salt or fresh water, but the design and choice of materials must also be light and stable.

The individual structural parts are designed in such a way that water can easily flow in and out. This means that there is no additional weight due to remaining water in the prosthesis, nor is there any unpleasant build-up of water.

Growing product range

Streifeneder ortho.production has developed a generous portfolio of waterproof components with which high-quality fittings for the lower limb can be produced. From the socket to the foot, every fitting is suitable for fresh, salt or chlorinated water and is manufactured in outstanding quality, and at the same time providing the user with the best possible safety in these areas. The range is constantly growing: exciting further developments complement and complete the portfolio for comprehensive care.

Variety of corrosion-resistant, waterproof components

The large selection of waterproof components enables the fabrication of individual, high-quality prostheses for the care of transtibial and transfemoral amputations, as well as knee exarticulations. The high-quality, corrosion-resistant materials ensure that the aid can be used in both swimming pool and seawater without hesitation. The components are designed in such a way that the prosthesis is flooded when immersed in water, i.e., there is no buoyancy due to trapped air, which increases wearing comfort.

Streifeneder's waterproof prosthesis line also includes a polycentric knee joint with lock. The knee joint is made of high-quality, corrosion-resistant materials so that it can be fully immersed in sea and chlorinated water together with the rest of the prosthesis.

KINEGEN.wave - the waterproof knee joint of the new generation

In addition to its water resistance, the new KINEGEN.wave offers prosthesis wearers several technical details that are necessary for optimal safety and natural movement. The high-quality knee joint is complemented by a modern design that fits perfectly among the familiar models of the KINEGEN series.

The KINEGEN.wave is suitable for users of mobility classes (Walky) 1 and 2. It is a polycentric knee joint that has a high stance phase safety due to a strongly backwards extended pivot point, which is especially helpful for geriatric walkers. The mechanical shortening in the swing phase allows increased ground clearance while the deactivatable lock provides additional safety. The simple yet intelligent design of the knee joint makes it particularly easy for orthopaedic technicians at the workbench. The robust KINEGEN.wave is a perfect option for interim or primary prosthesis.

Featires of waterproof prostheses at a glance

  • Polycentric, waterproof knee joint
  • Two proximal connection options
  • Mobility classes (Walky) 1 and 2
  • Stance phase stability and leg shortening in the swing phase
  • Deactivatable lock for mobile users
  • Continuous adjustment of extension and flexion resistance for a natural gait pattern
  • Extension support through integrated spring


Advantages of waterproof components

light and mobile

Special drainage channels efficiently drain off liquid and prevent buoyancy and weight change – ensuring that the prosthesis remains light and mobile both in and out of the water

rustproof, of course

Neither chlorine nor salt water can harm the materials used. We were able to ensure the corrosion resistance of our components through extensive test runs during development.

robust and durable

The robust structural parts made of titanium provide high strength and durability while remaining extremely lightweight.

simply safe

The firmly integrated proximal connection reduces potential sources of danger and is just as beneficial as the intelligent yet simple design of the joint.

Mobility grades for waterproof components

The components are designed for activity level (Walky) 1 and 2.

Users up to a body weight of 125 kg (knee joint 3A900) can use the waterproof prostheses.

The SACH bathing foot, for example, can be used in mobility classes 1 and 2 (Walky) with a maximum body weight of 100 kg.

The robust KINEGEN.wave is the optimal interim or initial care and can be used for patients with a body weight of up to 125 kg (mobility classes 1 and 2, Walky).


FAQ – further information waterproof prostheses

Are the structural parts for prostheses resistant to chlorine and salt water?

All waterproof components of Streifeneder ortho.production are resistant to salt water and chlorinated water and have proven themselves in extensive tests.

For what body weight is the SACH bathing foot recommended?

The SACH bathing foot can be used up to a maximum body weight of 100 kg - mobility classes (Walky) 1 to 2.

For which mobility class is the waterproof knee joint suitable?

The robust KINEGEN.wave is suitable for users up to 125 kg body weight - mobility classes (Walky) 1 to 2. The waterproof knee joint is an ideal interim or initial care.

What must be taken into account when using the prosthesis in the bath, shower or lake?

Rinse the prosthesis with clean fresh water after each bath. To speed up drying, the transtibial prosthesis can be wiped with a cloth afterwards. On slippery, wet surfaces, we recommend moving at an appropriate pace and wearing bathing shoes that support a secure stance and gait and prevent slipping.

How often does maintenance need to take place?

The components of waterproof prostheses should be visually and functionally checked by the orthopaedic technician every 6 months.

What should I pay attention to during daily use?

Our corrosion-resistant, waterproof components are just as suitable for everyday use outside the water in normal use as prostheses made of non-waterproof structural parts.


Do you have any questions or would you like to know more about our waterproof components? Contact us: