empower Reclaim your power. Information for technicians empower Ottobock 1
empower Powered propulsion for more freedom in life The empower Ankle is an innovation in the field of prosthetic feet. It is equipped with an active ankle joint, making it the only prosthesis with powered propulsion. empower is the next generation design of the BiOM Ankle. Only the empower Ankle continues to offer the combination of power, control and stability: Power Emulates the function and power of lost muscles and tendons 1,2 Provides energy instead of taking it away even up ramps, hills and stairs 1,6 Control Life-like ankle movement that normalises userʼs walking gait 4 Reduces joint forces which may result in less pain and fewer long-term orthopedic problems 1,2,5,6 Stability Adjusts ankle power, resistance and flexion in real-time Provides balance on variable terrain 3 1. Herr H., Grabowski A. (2012): Bionic ankle-foot prosthesis normalizes walking gait for persons with leg amputation, Proc Biol Sci. Vol. 7, 279(1728): 457 464. 2. Ferris A., Aldridge J., Sturdy J., Wilken J. (2011): Evaluation of the Biomimetic Properties of a New Powered Ankle- Foot Prosthetic System, Dept. of Orthopedics and Rehabilitation, Center for the Intrepid, Brooke Army Medical Center, Fort Sam Houston, TX, USA. Presented at American Society of Biomechanics. 3. Gates D., Aldridge J., Wilken J. (2013): Kinematic comparison of walking on uneven ground using powered and unpowered prostheses, Clinical Biomechanics, 28, 467 472. 4. Aldridge J., Ferris F., Sturdy J., Wilken J. (2012): Kinematics and Kinetics with a Powered Lower Leg System During Stair Climbing Ascent Following Transtibial Amputation, Gait & Posture, Vol. 36, 291 295. 5. Grabowski A., D Andrea S. (2013): Effects of a powered ankle-foot prosthesis on kinetic loading of the unaffected leg during level-ground walking, Neuroeng Rehabil., 10:49. 6. Esposito E., et al. (2015): Step-to-step transition work during level and inclined walking using passive and powered ankle-foot prostheses, Prosthet Orthot Int. 2 Ottobock empower
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empower Functions and Benefits Increased energy and less fatigue to walk farther and faster The empower Ankle replaces the function and power of lost muscles and tendons, giving users energy rather than taking it away even up ramps, hills and stairs. Its powered propulsion drives the user forward and upward while smoothly transitioning weight to the remaining limb. The empower Ankle provides the exact amount of energy needed for each step, enabling users to cope effortlessly with longer distances, stairs and sloping terrain. Improved safety and stability on different terrain To ensure a smooth rollover of the foot, the empower Ankle decelerates the body at heel strike before accelerating again for toe-off. At the same time, the amount of plantar flexion is adjusted to the slope of terrain. The system uses high resolution sensors to determine the exact amount of ankle power, resistance and flexion in real-time. This helps the user maintain balance and to cope better with variable terrain. Gentler on joints Many users suffer from painful joints as a result of changing their gait pattern. Unbalanced movement patterns and compensatory movements can even lead to osteoarthritis. With its active powered propulsion, the empower Ankle improves the user s gait pattern and reduces the adduction moment. This aids in preventing pain and incorrect gait patterns. 4 Ottobock empower
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empower Details 360 top cap access The pyramid adapter enables a quick and easy fitting. Ankle Display The power button and battery indicator lights reflect the state of charge are located in front of the Ankle. Dynamic Adaptation Intrinsic control firmware analyzes ankle joint torque and angle data from high resolution sensors, in real-time, to mimic the user s physiological ankle function. Lithium-Polymer Battery The integrated battery lasts for up to 8 hours depending on user activity. The dual bay charger can charge two batteries simultaneously in as little as 90 minutes. Weather sealed components The Ankle is resistant to rain, snow and dirt to withstand the varied demands of everyday life. Powered Propulsion A battery-powered, motorized actuator coupled with a high energy spring provide powered propulsion that emulates the gastrocnemius and soleus muscles. 6 Ottobock empower
Technical data Reference number 1A1-1 Suitable for MG 3 + 4 Amputation level Maximum body weight Sizes Weight* Minimum clearance* Approved knee joints** TT, KD, TF 130 kg 25 30 cm approx. 1,928 g (without footshell) approx. 2,200 g (with footshell) 222 mm C-Leg, Genium, Genium X3 * Based on size 27 ** Available as custom fitting only. Please contact the sales representative responsible for your region. Warranty and service The comprehensive warranty package provides your customers with guaranteed mobility for 3 years with no repair costs: 3-year manufacturer's warranty* Free repairs** Free service inspection in month 24 Free service unit during repair and service inspections As an alternative, a 6-year warranty package is offered. The warranty can be extended to 6 years at a later date. * The wear parts footshell and battery are covered by an one year warranty. ** Does not cover superficial damage and damage resulting from improper use, intent, negligence, or force majeure. Scope of delivery The foot is available in two colours (grey and black) and comes complete with two rechargeable batteries and a dual bay charger. Software Thanks to tablet-based software, orthopaedic technicians can customise the empower Ankle for each individual user. The software and the tablet are delivered together with the first order.
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