Knee joint, polycentric, with pneumatic swing phase control
Anyone who looks after a household or likes being active with children and grandchildren knows the importance of flexible movement patterns. From putting things into the bottom cupboard to picking up children's toys, a large knee flexion angle is indispensable. This is why amputees want a knee joint with functionality that comes as close as possible to the natural model. We meet this need with the 3R106 knee joint, which can be flexed to an angle up to 170 degrees. As though this were not enough, the lightweight knee joint also enables a harmonious gait pattern at different walking speeds. The joint offers maximum safety for you in the stance phase as well. As soon as your body weight is supported on the prosthesis and the foot is on the ground, unintentional buckling is hardly possible anymore.
Anyone who looks after a household or likes being active with children and grandchildren knows the importance of flexible movement patterns. From putting things into the bottom cupboard to picking up children's toys, a large knee flexion angle is indispensable. This is why amputees want a knee joint with functionality that comes as close as possible to the natural model. We meet this need with the 3R106 knee joint, which can be flexed to an angle up to 170 degrees. As though this were not enough, the lightweight knee joint also enables a harmonious gait pattern at different walking speeds. The joint offers maximum safety for you in the stance phase as well. As soon as your body weight is supported on the prosthesis and the foot is on the ground, unintentional buckling is hardly possible anymore.
The 3R106 knee joint is suitable for a moderate activity level. Your orthopaedics specialist is happy to advise you regarding suitable connections and other components of your prosthesis system.
| Product type | Mechanic Polycentric |
| Mobility grade | 2, 3 |
| Max. body weight | 100 kg |
The upper joint section and lower joint section are connected by the anterior links and the mid-joint section to form a four-bar linkage. In the extended position, the instantaneous pivot point is located clearly above the joint and behind the load line. Based on this, the modern polycentric structure provides particularly reliable stability for the knee joint during the stance phase and delivers increased ground clearance during the swing phase – thus enhancing the user’s confidence in the prosthesis as a whole.
Flexion and extension damping are individually adjustable. For a lower extension assist force, the extension assist spring can simply be replaced by the included weaker spring.
Advantageous swing phase damping characteristics, especially easy initiation of the swing phase and a smooth extension stop for a natural gait with reduced energy consumption.
The large flexion angle of 170° and the light weight also provide for high comfort, e.g. when bicycling, getting into a car, kneeling or sitting.
Suitable for treating all amputation levels due to various proximal connection versions.
Product information
| Product type | Mechanic Polycentric |
| Mobility grade | 2, 3 |
| Max. body weight | 100 kg |
| Amputation level | Transfemoral amputation, Hip disarticulation, Knee disarticulation, Hemipelvectomy |
| User group | adults, elderly |
| Activities | Daily use |
| Material | Aluminium |
Product Data
| Article number | 3R106 | 3R106=KD | 3R106=ST |
| Max. body weight | 100 kg | 100 kg | 100 kg |
| Mobility grade | 2, 3 | 2, 3 | 2, 3 |
| Weight | 760 g | 755 g | 765 g |
| Proximal connection | Pyramid | Lamination anchor | Threaded connector |
| Distal connection | Tube clamp Ø 30 mm | Tube clamp Ø 30 mm | Tube clamp Ø 30 mm |
| Knee flexion angle | 170 ° | 170 ° | 170 ° |
| System height | 162 mm | 184 mm | 180 mm |
| Proximal system height to alignment reference point | -6 mm | 16 mm | 12 mm |
| Distal system height to alignment reference point | 168 mm | 168 mm | 168 mm |
| Build height | 212 mm | 216 mm | 212 mm |
| Proximal build height to alignment reference point | 12 mm | 16 mm | 12 mm |
| Distal build height to alignment reference point | 200 mm | 200 mm | 200 mm |