Prosthetics Lower Extremities - Kinetech Medical

Mobility Grade 1
3R33 / 3R17
Modular Single Axis Knee Joint
with Lock and Extension Assist
The adjustable lock secures the knee joint in extension and is released
using the lock cable. Locking occurs automatically at full extension with the
assistance of the extension assist springs.
647G34
Use Foam Cover 3R24 or 3S124 for 3R33 or 3R17. Fabrication of a
customized foam cosmesis is possible (see page 237).
Order no. 3R33 3R17
Proximal connection Pyramid adapter Pyramid adapter
Distal connection Pyramid adapter Pyramid adapter
Knee flexion angle 120° 120°
Weight 530 g 695 g
System height 43 mm 43 mm
Proximal system
height up to alignment
reference point
Distal system height up
to alignment reference
point
6 mm 6 mm
37 mm 37 mm
Material Titanium Stainless steel
Mobility Grade 1
Max. body weight 125 kg 150 kg
3R33
≤150 kg
3R17
Single components for 3R33 and 3R17
replacement parts
4D10 Single component Pack for 3R33 and 3R17
Consists of:
1 plastic knee cap
1 knee axis bushing
1 compression spring
1 set screw
1 safety plate
1 oval head countersunk screw
1 rubber bumper
2 ball thrust bearings
2 compression springs
2 spring guide pins
2 lock screws
1 spring guide housing
2 spring bushings
1 guide pin
Knee Joints
Accessories for 3R33 and 3R17
Have to be ordered separately.
4F34 Lock Control Unit for 3R33 and 3R17
Can be used both left and right; adjustable for push and pull.
May be used in place of the 4F18 Lock Control Handle that is part of the
standard version.
Single components for 4F34
replacement parts
4D11 Single component Pack for 4F34 Lock Control Unit
Consists of:
1 lock control handle
1 threaded fitting, short
1 cable clamp
1 perlon cord
Otto Bock HealthCare GmbH | Prosthetics – Lower Extremities | www.ottobock.com 145