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3B1-3 - Knee prosthetics


Reclaim your strength.
With the market launch of the Genium leg prosthesis in 2011, Ottobock opened up entirely new horizons for prosthesis wearers: an unprecedented, natural gait pattern, climbing stairs step-over-step, overcoming obstacles, walking backwards, relaxed standing – to name just a few. For the first time, people with a transfemoral amputation experienced a range of new functions that provided perfect support for their desire to live a more active and independent everyday life.Based on human movement as the model, the Genium has been developed even further. The result is a noticeably smoother gait and even better support and safety in everyday situations, for instance on ramps, in confined spaces, or when changing walking speeds.
Product typeMicroprocessor
Mobility grade3, 4
Max. body weight330.69 lbs
All specifications
Benefits at a glance

Genium – smart mobility with a configuration app

Free your mind
Free your mind

Thanks to the newly updated, unique technology, the Genium enables a gait that’s even more natural. Added support is provided by adjustment possibilities that can make walking on ramps or sitting down easier.

An excellent long-term fitting
An excellent long-term fitting

Additional functions can help adapt the prosthesis to your everyday life. The stairs and obstacles function provides useful day-to-day assistance. It lets you take stairs step-over-step or overcome obstacles such as curbs.


We responded to users’ requests for improved protection against water and upgraded the Genium to an IP rating of 67. As a result, the leg prosthesis can also be exposed to brief rain showers or come into contact with splashed water.

Relaxed standing
Relaxed standing

The Genium features two different stance functions that permit resting on the prosthesis side. The result is continual relief for the sound side. This is especially beneficial for bilateral users.

MyMode plus
Selecting your prosthesis settings

The option of having up to five pre-settings (MyModes) programmed for special activities lets you adapt your prosthesis even better to your everyday life. The new Genium offers an even larger selection of options for individual modes.

Simple control on the go: the Cockpit app
Simple control on the go with the Cockpit app

With the Cockpit app for Apple and Android devices, you can easily and conveniently configure the Genium yourself. Whether you want to check the battery level, select a MyMode, or change the volume -- it’s all right there on your smartphone.

User Experience

Jump into life with both feet

Aaron’s Genium story

There's nothing more important to Aaron than being able to keep up with his fast-paced family! As a bilateral amputee, there's no challenge he isn't willing to take on. Whether he's at work, on a weekend getaway with his kids, or taking some time to go fishing, he's ready for anything.

Hamed’s Genium story

Hamed faced leg amputation as a child, and never let it get in the way of leading an active life filled with family, friends, and sports. Always seeking new challenges and setting new goals for himself, Hamed loves how his prosthesis takes him on new journeys every single day!


Movement calculation with real-time response

Unique technology at the heart of your mobility

The Genium’s introduction in 2011 represented a breakthrough in knee joint technology – but it didn't stop there. Every step of the Genium’s development has pushed the limits of technology further with the goal of coming even closer to the natural model. Years of research and development work have resulted in the Genium as we know it today. Movements are calculated with incomparable accuracy and triggered in real time. The technology recognizes whether the patient is on uneven terrain or inclines and whether they are changing speeds.

Studies have proven the long-term health benefits of the targeted relief it provides for the sound side. Compensating movements are reduced. Thanks to the Genium’s intuitive use, patients benefit from being able to focus their attention on the important things in life, rather than having to think about every step.

Smart app control

Thanks to integrated Bluetooth®, the Genium can also be controlled with an app. Additional movement patterns are stored as MyModes and can be very easily selected using the corresponding app. Mute mode can be selected via the app as well and is ideal when visiting the cinema or theatre, for example. The battery charge level can also be checked in no time using the Cockpit app, which is available for the new Genium on both Android and Apple (iOS) devices.


Learn More

An amputee practices walking with the Ottobock Kenevo in a rehabilitation center with a physical therapist

Living with a Leg Amputation

Read about what to expect after a leg amputation, how to heal your residual limb, and finding the right rehabilitation facilities.

Learn more

Product information

Product typeMicroprocessor
Mobility grade3, 4
Max. body weight330.69 lbs
Amputation levelHip disarticulation, Transfemoral amputation, Knee disarticulation
User groupadults, women, men
ActivitiesDaily use, Sports
Moisture resistanceIP67 (weatherproof)

Product Data

Article number3B1-33B1-3=ST
Mobility grade3, 43, 4
Distal connection

Tube clamp

Tube clamp

Proximal connection


Threaded connector

Knee flexion angle135 °135 °
Moisture protectionIP67 (weatherproof)IP67 (weatherproof)
Weight (without tube adapter)3.08 lbs3.09 lbs
Max. body weight330.69 lbs330.69 lbs
Proximal system height to alignment reference point0 ″0.71 ″
Min. distal system height with 2R20/2R21 AXON tube adapter298 / 330 ″298 / 330 ″
Max. distal system height with 2R20/2R21 AXON tube adapter514 / 546 ″514 / 546 ″
Min. build height with 2R20/2R21 AXON tube adapter11.73 / 12.99 ″11.73 + 0.35* / 12.99 + 0.35* ″
Max. build height with 2R20/2R21 AXON tube adapter20.24 / 21.50 ″20.24 + 0.35* / 21.50 + 0.35* ″
Proximal build height to alignment reference point0.71 ″0.71 + 0.35* ″
Min. distal build height with 2R20/2R21 AXON tube adapter280 / 312 ″280 / 312 ″
Max. distal build height with 2R20/2R21 AXON tube adapter496 / 528 ″496 / 528 ″



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