Modular Knee Joint with Rotary Hydraulic

Thanks to easy initiation of the swing phase, the 3R60 knee joint allows you to walk at various speeds – whether you are going for a hike or strolling through a market. You benefit from a larger ground clearance during swing-through of the joint, reducing your risk of stumbling. The special joint design also gives you more stability in the stance phase and prevents unwanted flexion of the joint. The 3R60 also makes it possible for you to walk down gentle slopes.

How does the EBSpro work?The mechanical principle of the EBSpro is based on the proven 3R60 prosthetic joint.The polycentric prosthetic joint has five axes that are arranged to form a ring. The anterior axis chain is designed like a conventional four-axis joint, but the posterior linkage bar is interrupted by an additional pivot point (Fig. 1). The proven design thus allows for two different modes of operation: swing phase mode and stance phase flexion mode. Two specially configured miniature hydraulic units (Fig. 2, A+B) control the two modes. Outstanding performance during the stance phase is the key feature of the 3R60.The spring and hydraulics combination in stance phase flexion mode is individually adjustable and can be precisely adapted to suit the requirements of the prosthesis wearer. Thanks to the progressive nature of the EBS resistance – realised with an auto-adaptive EBS unit – the effect can adapt itself over a large range of walking speeds for the first time.The higher the walking speed, the greater the extent to which flexion is limited. The lower the walking speed, the less damping resistance takes effect. This ensures greater stance phase flexion (Fig. 3). In this way, this important function adapts to various everyday situations. For the prosthesis wearer, this means enhanced safety and comfort as well as a highly natural gait pattern.

With over 100,000 fittings to date, the C-Leg is trusted by more users than any other microprocessor knee in the world.1 And it’s no wonder: Studies show the C-Leg provides the exceptional reliability and performance users need to focus on what really matters — enjoying a healthy, active lifestyle.From descending stairs and ramps, to navigating uneven terrain, to walking backward, the C-Leg dynamically adapts to a wide variety of everyday situations.This legacy lives on in the C-Leg 4 update. With an innovative design and exciting new features, the C-Leg 4 provides the known reliability, next-level personalization, and an easier, more intuitive user experience for both patients and professionals alike. 1 Wismer, N., Mileusnic, M., Sreckovic, I., & Hahn, A. (2016). First results on next generation C-Leg. Poster presentation at OTWorld, Leipzig, German

The 3R85 Dynion mechanical knee is designed for active individuals who live their lives on their own terms; tackling every day without compromise. Designed to optimize fittings and support users throughout a wide range of daily activities, providing stability when additional balance is required.