Adaract Atalanta

A first-of-its-kind fully powered prosthetic leg

POWER LIKE NEVER BEFORE

  • Powered by Adaract’s proprietary artificial muscles

  • Walking with ease, step-over-step stair ascension, and running up to 8 mph*

  • Stronger than any other prosthetic knee or ankle with 247 lb-ft of torque at peak output

  • Individual muscle fibers allow adaptability between quick and strong movements

  • Modular and rechargeable batteries, each of which supplies over 2 days of activity*

*based on weight and activity level of average transfemoral amputee

Interested in learning more?

If you have or know someone with a limb difference:

OR

The Problem:

Because all currently available lower-limb prosthetics are either unpowered or underpowered, excess strain is placed on an amputee's existing joints and muscles.

For transfemoral (above-knee) amputees, the muscles and joints in the hip, back, and sound limb are tasked with providing all of the energy that would typically be provided by the amputated limb. This transfer of loads causes:

  • Fatigue

    Energy consumption when walking is increased by up to 80% for unilateral above-knee amputees and up to 300% for bilateral above-knee amputees.

  • Pain

    For more than 50% of patients, increased loads on hip joint and postural changes from hindered gaits lead to back pain. Amputees often consider this pain worse than residual limb pain and phantom pain.

  • Lack of Mobility

    Ascending and descending stairs and inclines, standing, etc. require unnatural movements to compensate for a lack of a powered knee joint. These complex motions are also generally much more challenging for amputees.

Adaract’s Solution:

Adaract is building a first-of-its-kind fully powered prosthetic knee+ankle assembly with our artificial muscle technology.

Adaract’s prosthetics are powered by patent-pending artificial muscles that efficiently provide the speed and strength of a human muscle while weighing only 1/10th as much. These soft muscle actuators are bio-inspired and are able to adapt to loads in real time. This video shows an early prototype adapting to loads by activating additional muscle fibers.