OP4 Knee

The OP4 Knee is a pneumatic, monocentric knee joint with brake function. Due to the finely adjustable brake, the joint can be adapted to the individual’s safety requirements.

• Braking behavior can be adjusted to suit the user
• Individually adjustable swing phase for a harmonious gait
• Highly acute flexion angle for more freedom of movement
• Kneecap provides additional protection for both the knee and

Patient Profile
Amputation Level:  Transfemoral
Impact Level: Moderate to High
Maximum Patient Weight: 100kg (220lbs)
Product Information
Build Height: 198mm
Weight of Knee: 0.680kg
Flexion: 145°
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