3R60 - Knee prosthetics
EBS knee joint, polycentric, with hydraulic swing phase control
Be confident and keep going.
| Product type | Mechanic polycentric |
| Mobility grade | 2, 3 |
| Max. body weight | 125 kg |
Benefits at a glance
Walking well again
The forces acting on the residual limb, pelvis and spine are reduced, and the most natural possible gait pattern is achieved even at various walking speeds.
Enhanced safety
The knee joint can be selectively flexed with no delay regardless of the situation, providing you with enhanced protection in risky conditions.
Walking on uneven terrain and slopes
Comfortable and safe walking even on rough terrain and slopes – for a reduced risk of stumbling.
Relaxed sitting and kneeling
Enjoy more freedom of movement. This is particularly handy when you get into a car, want to kneel down or have to sit in a confined space – when travelling on an airplane or train, during events or at the theatre.
User Experience
Specifications
Product information
| Product type | Mechanic polycentric |
| Mobility grade | 2, 3 |
| Max. body weight | 125 kg |
| Amputation level | Transfemoral amputation |
| Material | Aluminium |
Product Data
| Article number | 3R60 | 3R60=HD | 3R60=KD | 3R60=ST |
| Max. body weight | 125 kg | 125 kg | 125 kg | 125 kg |
| Mobility grade | 2, 3 | 2, 3 | 2, 3 | 2, 3 |
| Weight | 845 g | 880 g | 940 g | 845 g |
| Proximal connection | Pyramid | Pyramid (10° inclined) | Lamination anchor | Threaded connector |
| Distal connection | Pyramid | Pyramid | Pyramid | Pyramid |
| Knee flexion angle | 150 ° | 150 ° | 150 ° | 150 ° |
| System height | 171 mm | 174 mm | 193 mm | 189 mm |
| Proximal system height to alignment reference point | -2 mm | 1 mm | 20 mm | 16 mm |
| Distal system height to alignment reference point | 173 mm | 173 mm | 173 mm | 173 mm |
| Build height | 207 mm | 210 mm | 211 mm | 207 mm |
| Proximal build height to alignment reference point | 16 mm | 19 mm | 20 mm | 16 mm |
| Distal build height to alignment reference point | 191 mm | 191 mm | 191 mm | 191 mm |
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3R60-PROKnee prosthetics
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.
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.