Modular Knee Joint with Rotary Hydraulic
As a prosthesis wearer, you want to be confident that your knee joint meets your daily requirements and supports changing walking speeds.
With the waterproof 3R80 knee joint, both the stance and the swing phase are controlled by the hydraulics. For example, walking down stairs step-over-step and walking down inclines are effectively supported by closely approximating a physiological gait pattern, even at various walking speeds. This allows users to manage their everyday lives with determination at their own pace.
As a prosthesis wearer, you want to be confident that your knee joint meets your daily requirements and supports changing walking speeds.
With the waterproof 3R80 knee joint, both the stance and the swing phase are controlled by the hydraulics. For example, walking down stairs step-over-step and walking down inclines are effectively supported by closely approximating a physiological gait pattern, even at various walking speeds. This allows users to manage their everyday lives with determination at their own pace.
| Product type | Mechanic monocentric |
| Mobility grade | 3, 4 |
| Max. body weight | 330 lbs |
Product information
| Product type | Mechanic monocentric |
| Mobility grade | 3, 4 |
| Max. body weight | 330 lbs |
| Amputation level | Transfemoral amputation, Hip disarticulation, Knee disarticulation, Hemipelvectomy |
| User group | adults |
| Activities | Daily use, Sports |
| Moisture resistance | waterproof |
| Material | Aluminum |
Product Data
| Article number | 3R80 | 3R80=ST |
| Max. body weight | 330 lbs | 330 lbs |
| Mobility grade | 3, 4 | 3, 4 |
| Weight | 2.73 lbs | 2.77 lbs |
| Proximal connection |
Pyramid |
Threaded connector |
| Distal connection |
Tube clamp Ø 34 mm |
Tube clamp Ø 34 mm |
| Knee flexion angle | 150 ° | 150 ° |
| System height | 6 7/16 ″ | 7 1/16 ″ |
| Proximal system height to alignment reference point | 1 1/8 ″ | 1 3/4 ″ |
| Distal system height to alignment reference point | 5 5/16 ″ | 5 5/16 ″ |
| Build height | 8 1/2 ″ | 8 1/2 ″ |
