Prosthetic Knees


Impact Level
Low Medium and High Impact Scale Icon in BlackLow|Medium|High
Weight Limit
Adapter Type
Pyramid Adapter
Threaded Adapter
Approx 1655g
Swing Phase
Microprocessor Controlled Hydraulics
Up to 6 Years
IP Rating

Key Features

Less Intrusive. More Intuitive
Introducing the QUATTRO Microprocessor Knee by PROTEOR, designed to allow users to live their lives with no boundaries. Using the latest innovation in MPK’s, PROTEOR have introduced H.A.R.T Control Technology providing a unique personal experience that tracks users’ individual gait patterns.

The QUATTRO boasts 20 user modes, including Sitting, Obstacle Assist, Cycling and Golf Mode all which can be adjusted by both the prosthetist or user. The knee also includes features such as remote data capture, outcome measure reporting and independent resistance for ramps/stairs and sitting.

Download Brochure View Catalogue Page

IFU Prosthetist Setup Guide 

Patient Setup Guide      Knee Wall Chart

Features & Benefits

  • Patented H.A.R.T. Control Technology allows for a fast and infinite amount of adjustments to the control valve diameter, resulting in an extremely responsive custom gait experience
  • An intuitive stance lock is active within a range from 0-70⁰, offering additional security, comfort and control
  • Advanced stumble recovery which determines the appropriate resistance to recover from a stumble more naturally
  • Prosthetists will find set up simple using the Gait Lab app to set user parameters and modes
  • The Freedom Innovations app allows users to adjust and customise 19 modes to suit their lifestyle
  • IP67 rating allows users to fully submerge under 1 meter of water for up to 30 minutes
  • Lowest MPK build height for added versatility in foot selection
  • Field replaceable knee pad cover allowing for rapid replacement and uninterrupted use
  • Transferable settings - save and reinstall settings into another unit e.g. when refitting after servicing

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