ATK HydraPro Knee HD

The ATK HydraPro HD is a hydraulic waterproof and highly functional 4-bar prosthetic knee joint, designed to meet the physical demands of active amputees that require a higher weight rating. LegWorks’ patented AutoLock Technology stance phase controller instills confidence on all terrains, while the Hydraulic Variable Cadence Controller (patent pending) allows for multiple walking speeds. An ideal knee for K3-K4 users who desire a water leg, the ATK HydraPro HD includes a simple twist-knob manual lock which allows for absolute stability in or around the water.

Features and Benefits:

• Waterproof and corrosion resistant (submersible in fresh or salt water)
• Superior stability to traditional polycentric designs via the patented AutoLock Technology
• Hydraulic Variable Cadence Controller (patent pending)
• Simple twist-knob manual lock
• Easy AutoLock Release feature for sitting
• Durably designed with a weight rating of 440lb (200kg)

Technical Specifications:

• Amputation Level: Transfemoral, Knee Disarticulation
• Weight Rating: 440lb (200kg)
• Patient Weight Limit: 440lb
• Knee Flexion Angle: 150°
• Mobility Level: K3-K4
• Proximal Connection: Pyramid Adaptor
• Distal Connection: 30mm Tube Clamp
• Weight of Knee: 2.32lb (1,052g)
• Device Height: 7 5/16in (186mm)
• Proximal Portion Length: 15/16in (24mm)