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Item #: 3R85
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Dynion is Ottobock's newest addition to their mechanical knee family. The knee is designed for active individuals (MG 3-4) who live their lives on their own terms; tackling every day without compromise. Dynion is a reliable companion for daily activities because it adapts to varying walking speeds, and provides reliable support when going down stairs, ramps, and declines (even in the shower or swimming pool).

User profile:

  • MG 3-4 (low 4)
  • Max. patient weight: 100 kg / 220 lbs
  • Transfemoral amputation, Knee disarticulation, Hip disarticulation, Bilateral

Product description:

  • Monocentric knee joint with patented rotary hydraulic to control stance and swing phase
  • Default Stance design: Dynion progressively responds to ground reaction forces ensuring a stable stance.
  • Swing is initiated upon successfully meeting the disengagement criteria.
  • Stance resistance activated by foot load or interruption of swing.


Material Aluminum
Distal Connection Tube Clamp (30 mm)
Proximal Connection Pyramid Adapter
Knee flexion angle 145 degrees
System height 231 mm
Proximal build height to alignment reference point 44.5 mm
Distal build height to alignment reference point 172 mm
Weight 1240 g
Scope of delivery 2R37 Tube Adapter (30 mm), Instructions for Use
Maximum Body Weight 220 lbs (100 kg)


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3R85 - Quick Reference Guide

Product Information

PDF Document | Published: May 6, 2022

3R85 - Knee Solutions Brief

Product Information

PDF Document | Published: May 6, 2022