
Microprocessor prosthetic knee with H.A.R.T. Control Technology, 20 user modes, and IP67 waterproofing.
Freedom QUATTRO is a microprocessor-controlled prosthetic knee from Steeper Group in the United Kingdom. It was developed for transfemoral users who needed adaptive stance and swing control in a waterproof unit, combining a sealed design with H.A.R.T. Control Technology and a set of preconfigured user modes.
The knee entered the market as part of the broader move toward electronically controlled prosthetic joints that could be used in a wider range of daily conditions. Its IP67 rating and multiple user modes positioned it for people who wanted a knee that could tolerate wet environments while still providing programmable gait behavior and stance security. Steeper has continued to offer the model as a product in its prosthetics portfolio.
Steeper Group releases the microprocessor knee with H.A.R.T. Control Technology, 20 user modes, and IP67 waterproofing.