Cascade - Orthotic & Prosthetic Supplier

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ATK HydraPro


The ATK HydraPro with optional stance flexion is a hydraulic functional 4-bar prosthetic knee, designed to meet the physical demands of active amputees. 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.

  • Simple twist-knob secondary manual lock
  • Easy AutoLock Release feature for sitting
  • Increased stability to traditional polycentric designs
  • Waterproof and corrosion resistant in fresh water or saltwater

  • Activity Level: K3, K4
  • Knee Design Type: Hydraulic Swing Phase Control, Mechanical Stance Phase Lock
  • Axis: Polycentric
  • Swing Phase: Hydraulic Variable Cadence Controller
  • Stance Phase: Friction, AutoLock Technology
  • Control Frame Material: Fiber-Reinforced Composites, Stainless Steel, Titanium
  • Product Weight (g): 1,052
  • Maximum User Weight: 330lbs (150kg)
  • Maximum Knee Flexion Angle: 150 Degrees
  • Proximal Connection: Pyramid Adapter
  • Distal Connection: 30mm Tube Clamp
  • Trial Period: 30 days from delivery date
  • Warranty: 24 months from purchase date

Manufacturer Recommended HCPCS: L5814, L5850, L5925
Sold each.

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