Modular Knee Joint, pneumatic
Item #: 3R78=STOverview
Discontinued -- suggested replacement is the 3R106-PRO=ST
The development of the 3R78 focused on a robust, dust-resistant design that is durable and resistant against environmental impacts. This polycentric prosthetic knee joint with pneumatic swing phase control offers reliable stance phase security for users with moderate activity levels.
In the swing phase, the smooth yet powerful single chamber pneumatics (one chamber each for flexion and extension damping) does not run out of air, even at various walking speeds. Smooth flexion and extension movements, and therefore an approximation of the physiological gait pattern, are made possible. Here the joint geometry effectively shortens the prosthesis during swing through, resulting in more ground clearance.
Specifications
| Activity Level | K3 |
|---|---|
| Maximum Body Weight | 220 lbs (100 kg) |
| Material | Aluminum |
| Proximal Connection | Threaded top |
| Distal Connection | Tube Clamp (30 mm diameter) |
| Maximum Knee Flexion Angle | 150 degrees |
| Build Height | 211 mm |
| Distal Build Height | 200 mm |
| Proximal Build Height | 11 mm |
Accessories
Documents
3R78, 3R78=KD, 3R78=ST - Instructions for Use
Instructions for Use
PDF Document | Published: Dec 16, 2020
Lower Limb Prosthesis Documentation Guide for Medicare and Medicare Advantage
Reimbursement
PDF Document | Published: Dec 2, 2024
3R78 Polycentric knee joint with pneumatic swing phase control - Information for Practitioners
Product Information
PDF Document | Published: Apr 1, 2014
3R78 Pneumatic Modular Knee Joint - Quick Reference Guide
Product Information
PDF Document | Published: Sep 1, 2016
3R78 Modular Knee Joint - Product Information
Product Information
PDF Document | Published: May 1, 2014