Rotary Hydraulics
Fresh Water Waterproof
Manual Lock
Progressive Damping
CE Certified
ISO 10328 Tested
Functional Highlights
Hydraulic Control: Independent swing and stance phases.
Safety First: Smooth, safe descent on stairs and ramps.
Extra Stability: Manual lock feature for standing.
Adaptability: Progressive damping for varied walking speeds.
The HHS Monocentric Knee Joint is an advanced hydraulic prosthetic knee meticulously engineered to provide smooth, secure, and natural movement for everyday walking. It supports users with highly reliable stance control while facilitating a fluid swing phase for comfortable gait progression. Featuring a state-of-the-art rotary hydraulic system, this prosthetic component adapts seamlessly to different walking speeds, creating a stable and confident experience. Its compact, durable, and freshwater waterproof construction makes it an ideal mechanical knee solution for active daily use, combining safety, biomechanical mobility, and precise adjustment capabilities.
Technological Architecture & Adjustments
Flexion & Extension Tuning
The HHS provides specialized adjustment options for optimal control. Flexion and extension resistance can be configured independently via dedicated valves conveniently located on both sides of the product, ensuring a personalized swing phase.
Stance Phase Damping
Engineered for superior security. The threshold sensitivity and stance phase damping resistance can be finely adjusted separately utilizing two ergonomic rings positioned on the posterior aspect of the joint.
Push-Button Lock System
The hydraulic knee joint can be securely locked in full extension using the integrated push-button system located on opposite sides:
- Lock Button: Engages the locking mechanism at full extension.
- Release Button: Disengages the lock, allowing free movement.
Technical Specifications
| Product Code | HHS |
| Proximal Connection | Pyramid Adapter |
| Distal Connection | Tube Clamp Ø 34 mm |
| Max. User Weight | 125 Kg |
| Max. Knee Flexion Angle | 130° |
| Product Weight | 1167 gr |
| Overall Length / Build Height | 232 mm / 195.5 mm |
| Water Condition | Fresh Water Waterproof |
Performance Verification
Real-World Patient Experience: This footage showcases real users walking with the IB-ER HHS Knee Joint, demonstrating its everyday reliability, safety, and comfort in action.
- Natural and confident walking gait
- Seamless adaptation to different walking speeds
- Enhanced stability and user confidence










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